* All occurrences of *Select3D_Projector* in the application code (if any) should be replaced with *Handle(Select3D_Projector)*.
* The code of inheritors of *Select3D_SensitiveEntity* should be updated if they override <i>Matches()</i> (this is probable, if clipping planes are used).
-* Constructor for *V3d_Plane* has been changed, so the extra argument should be removed if used in the application. It is necessary to add a new plane using method *V3d_Viewer::AddPlane()* if *V3d_Viewer* has been used to manage clipping planes list (this does not affect clipping planes representation). Please, have a look at the source code for new DRAWEXE *vclipplane* command in *ViewerTest_ObjectsCommands.cxx, VClipPlane* to see how clipping planes can be managed in the application.
+* Constructor for *V3d_Plane* has been changed, so the extra argument should be removed if used in the application. It is necessary to add a new plane using method *V3d_Viewer::AddPlane()* if *V3d_Viewer* has been used to manage clipping planes list (this does not affect clipping planes representation). Have a look at the source code for new DRAWEXE *vclipplane* command in *ViewerTest_ObjectsCommands.cxx, VClipPlane* to see how clipping planes can be managed in the application.
@section upgrade_652 Upgrade to OCCT 6.5.2
Porting of user applications from an earlier OCCT version to version 6.5.2 requires taking into account the following major changes:
* Any code that has been generated by WOK from CDL generic classes *Tcollection_DataMap* and *Tcollection_IndexedDataMap* needs to be regenerated by WOK to take into account the change in the interface of these classes.
* The enumerations *CDF_StoreStatus* and *CDF_RetrievableStatus* have been replaced by the enumerations *PCDM_StoreStatus* and *PCDM_ReaderStatus*. Correspondingly, the methods *Open, Save* and *SaveAs* of the class *TDocStd_Application* have changed their return value. Any code, which uses these enumerations, needs to be updated.
-* *BRepLib_MakeFace* has been modified to accept tolerance value for resolution of degenerated edges. This tolerance parameter has no default value to ensure that the client code takes care of passing a meaningful value, not just *Precision::Confusion*, so some porting overheads are expected.
+* *BRepLib_MakeFace* has been modified to receive tolerance value for resolution of degenerated edges. This tolerance parameter has no default value to ensure that the client code takes care of passing a meaningful value, not just *Precision::Confusion*, so some porting overheads are expected.
* If the callback mechanism in call_togl_redraw function was used in the application code, it is necessary to revise it to take into account the new callback execution and provide a check of reason value of Aspect_GraphicCallbackStruct in callback methods to confirm that the callback code is executed at the right moment. Now the callbacks are executed before redrawing the underlayer, before redrawing the overlayer and at the end of redrawing. The information about the moment when the callback is invoked is provided with the reason value in form of an additional bit flag <i>(OCC_PRE_REDRAW, OCC_PRE_OVERLAY)</i>. The state of OpenGl changed in callback methods will not be restored automatically, which might lead to unwanted behavior in redrawing procedure.
* The print method used in the application code might need to be revised to take into account the ability to choose between print algorithms: tile and stretch. The stretch algorithm will be selected by default during porting.
* It is recommended to *BRepMesh_DiscretFactory* users, to check *BRepMesh_DiscretFactory::SetDefault()* return value to determine plugin availability / validity. *BRepMesh_DiscretFactory::Discret()* method now returns handle instead of pointer. The code should be updated in the following manner:
* Method *HashCode()* has been removed from class *Standard_Transient*. It is advisable to use global function <i>HashCode()</i> for Handle objects instead.
* Declaration of operators new/delete for classes has become consistent and is encapsulated in macros.
* Memory management has been changed to use standard heap <i>(MMGT_OPT=0)</i> and reentrant mode <i>(MMGT_REENTRANT=1)</i> by default.
-* Map classes in *NCollection* package now accept one more argument defining a hash tool.
+* Map classes in *NCollection* package now receive one more argument defining a hash tool.
@section upgrade_654 Upgrade to OCCT 6.5.4
It is necessary to introduce the corresponding changes in the applications for which the order of sub-shapes resulting from a Boolean operation is important. It is strongly recommended to use identification methods not relying on the order of sub-shapes (e.g. OCAF naming).
* If you need to use OCCT on Mac OS X with X11 (without Cocoa), build OCCT with defined pre-processor macro *CSF_MAC_USE_GLX11*. XLib front-end (previously the only way for unofficial OCCT builds on Mac OS X) is now disabled by default on this platform. If your application has no support for Cocoa framework you may build OCCT with XLib front-end adding *MACOSX_USE_GLX* macro to compiler options (you may check the appropriate option in WOK configuration GUI and in CMake configuration). Notice that XQuartz (XLib implementation for Mac OS X) now is an optional component and does not provide a sufficient level of integrity with native (Cocoa-based) applications in the system. It is not possible to build OCCT with both XLib and Cocoa at the same time due to symbols conflict in OpenGL functions.
* Animation mode and degeneration presentation mode (simplified presentation for animation) and associated methods have been removed from 3D viewer functionality.
-Correspondingly, the code using methods *SetAnimationModeOn(), SetAnimationModeOff(), AnimationModeIsOn(), AnimationMode(), Tumble(), SetDegenerateModeOn(), SetDegenerateModeOff()* and *DegenerateModeIsOn()* of classes *V3d_View* and *Visual3d_View* will need to be removed or redesigned. Please, notice that Hidden Line Removal presentation was not affected; however, the old code that used methods *V3d_View::SetDegenerateModeOn* or *V3d_View::SetDegenerateModeOff* to control HLR presentation should be updated to use *V3d_View::SetComputedMode* method instead.
+Correspondingly, the code using methods *SetAnimationModeOn(), SetAnimationModeOff(), AnimationModeIsOn(), AnimationMode(), Tumble(), SetDegenerateModeOn(), SetDegenerateModeOff()* and *DegenerateModeIsOn()* of classes *V3d_View* and *Visual3d_View* will need to be removed or redesigned. Hidden Line Removal presentation was not affected; however, the old code that used methods *V3d_View::SetDegenerateModeOn* or *V3d_View::SetDegenerateModeOff* to control HLR presentation should be updated to use *V3d_View::SetComputedMode* method instead.
* Calls of *Graphic3d_Group::BeginPrimitives()* and *Graphic3d_Group::EndPrimitives()* should be removed from the application code.
* Application functionality for drawing 2D graphics that was formerly based on *TKV2d* API should be migrated to *TKV3d* API. The following changes are recommended for this migration:
* A 2D view can be implemented as a *V3d_View* instance belonging to *V3d_Viewer* managed by *AIS_InteractiveContext* instance. To turn *V3d_View* into a 2D view, the necessary view orientation should be set up at the view initialization stage using *V3d_View::SetProj()* method, and view rotation methods simply should not be called.
* Any 2D graphic entity (formerly represented with *AIS2D_InteractiveObject*) should become a class derived from *AIS_InteractiveObject* base. These entities should be manipulated in a view using *AIS_InteractiveContext* class API.
* All drawing code should be put into *Compute()* virtual method of a custom interactive object class and use API of *Graphic3d* package. In particular, all geometry should be drawn using class hierarchy derived from *Graphic3d_ArrayOfPrimitives*. Normally, the Z coordinate for 2D geometry should be constant, unless the application implements some advanced 2D drawing techniques like e.g. multiple "Z layers" of drawings.
* Interactive selection of 2D presentations should be set up inside *ComputeSelection()* virtual method of a custom interactive object class, using standard sensitive entities from *Select3D* package and standard or custom entity owners derived from *SelectMgr_EntityOwner* base.
-Please refer to the Visualization User's Guide for further details concerning OCCT 3D visualization and selection classes. See also *Viewer2D* OCCT sample application, which shows how 2D drawing can be implemented using TKV3d API.
+Refer to the Visualization User's Guide for further details concerning OCCT 3D visualization and selection classes. See also *Viewer2D* OCCT sample application, which shows how 2D drawing can be implemented using TKV3d API.
* Run-time graphic driver library loading mechanism based on *CSF_GraphicShr* environment variable usage has been replaced by explicit linking against *TKOpenGl* library. The code sample below shows how the graphic driver should be created and initialized in the application code:
~~~~
// initialize a new viewer with OpenGl graphic driver
@subsection upgrade_670_clipping Object-level clipping and capping algorithm.
-* It might be necessary to revise and port code related to management of view-level clipping to use *Graphic3d_ClipPlane* instead of *V3d_Plane* instances. Please note that *V3d_Plane* class has been preserved -- as previously, it can be used as plane representation. Another approach to represent *Graphic3d_ClipPlane* in a view is to use custom presentable object.
-* The list of arguments of *Select3D_SensitiveEntity::Matches()* method for picking detection has changed. Since now, for correct selection clipping, the implementations should perform a depth clipping check and return (as output argument) minimum depth value found at the detected part of sensitive. Please refer to CDL / Doxygen documentation to find descriptive hints and snippets.
+* It might be necessary to revise and port code related to management of view-level clipping to use *Graphic3d_ClipPlane* instead of *V3d_Plane* instances. Note that *V3d_Plane* class has been preserved -- as previously, it can be used as plane representation. Another approach to represent *Graphic3d_ClipPlane* in a view is to use custom presentable object.
+* The list of arguments of *Select3D_SensitiveEntity::Matches()* method for picking detection has changed. Since now, for correct selection clipping, the implementations should perform a depth clipping check and return (as output argument) minimum depth value found at the detected part of sensitive. Refer to CDL / Doxygen documentation to find descriptive hints and snippets.
* *Select3D_SensitiveEntity::ComputeDepth()* abstract method has been removed. Custom implementations should provide depth checks by method *Matches()* instead -- all data required for it is available within a scope of single method.
-* It might be necessary to revise the code of custom sensitive entities and port *Matches()* and *ComputeDepth()* methods to ensure proper selection clipping. Please note that obsolete signature of *Matches* is not used anymore by the selector. If your class inheriting *Select3D_SensitiveEntity* redefines the method with old signature the code should not compile as the return type has been changed. This is done to prevent override of removed methods.
+* It might be necessary to revise the code of custom sensitive entities and port *Matches()* and *ComputeDepth()* methods to ensure proper selection clipping. Note that obsolete signature of *Matches* is not used anymore by the selector. If your class inheriting *Select3D_SensitiveEntity* redefines the method with old signature the code should not compile as the return type has been changed. This is done to prevent override of removed methods.
@subsection upgrade_670_markers Redesign of markers presentation
The current perspective model is not fully backward compatible, so the old perspective-related functionality needs to be reviewed.
-Please revise application-specific custom presentations to provide proper bounding box. Otherwise object might become erroneously clipped by automatic *ZFit* or frustum culling algorithms enabled by default.
+Revise application-specific custom presentations to provide a proper bounding box, otherwise the object might become erroneously clipped by automatic *ZFit* or frustum culling algorithms enabled by default.
@subsection upgrade_680_connected_objects Redesign of Connected Interactive Objects
3D Viewer now uses GLSL programs for managing frame buffer and stereoscopic output.
For proper initialization, application should configure **CSF_ShadersDirectory** environment variable pointing to a folder with GLSL resources - files from folder **CASROOT**/src/Shaders.
+*Note that **CSF_ShadersDirectory** become optional since OCCT 7.1.0 release*.
@subsection upgrade_690_selection Changes in Selection
Porting of user applications from an earlier OCCT version to version 7.0.0 requires taking into account the following major changes.
+Building OCCT now requires compiler supporting some C++11 features.
+The supported compilers are:
+- MSVC: version 10 (Visual Studio 2010) or later
+- GCC: version 4.3 or later
+- CLang: version 3.6 or later
+- ICC: version XE 2013 SP 1 or later
+
+When compiling code that uses OCCT with GCC and CLang compilers, it is necessary to use compiler option -std=c++0x (or its siblings) to enable C++11 features.
+
@subsection upgrade_700_persist Removal of legacy persistence
Legacy persistence for shapes and OCAF data based on *Storage_Schema* (toolkits *TKPShape*, *TKPLCAF*, *TKPCAF*, *TKShapeShcema, TLStdLSchema, TKStdSchema*, and *TKXCAFSchema*) has been removed in OCCT 7.0.0.
The existing data files in standard formats can be converted using OCCT 6.9.1 or a previous version, as follows.
+@note Reading / writing custom files capability from OCCT 6.9.1 is restored in OCCT 7.2.0. See details in @ref upgrade_720_persistence section.
+
#### CSFDB files
Files in *CSFDB* format (usually with extension .csfdb) contain OCCT shape data that can be converted to BRep format.
~~~~~
Handle_Class -> Handle(Class)
~~~~~
- This change is not applied if the source or header file is recognized as containing the definition of Qt class with signals or slots, to avoid possible compilation errors of MOC files caused by inability of MOC to recognize macros (see http://doc.qt.io/qt-4.8/signalsandslots.html).
+ This change is not applied if the source or header file is recognized as containing the definition of Qt class with signals or slots, to avoid possible compilation errors of MOC files caused by inability of MOC to recognize macros (see https://doc.qt.io/qt-4.8/signalsandslots.html).
The file is considered as defining a Qt object if it contains strings *Q_OBJECT* and either *slots:* or *signals:*.
4. Removes forward declarations of classes with names <i>Handle(C)</i> or *Handle_C*, replacing them either by forward declaration of its argument class, or (for files defining Qt objects) <i>\#include</i> statement for a header with the name of the argument class and extension .hxx:
#### Ambiguity of calls to overloaded functions
-This issue appears in the compilers that do not support default arguments in template functions (known cases are Visual C++ 10 and 11): the compiler reports an ambiguity error if a handle is used in the argument of a call to the function that has two or more overloaded versions, accepting handles to different types.
+This issue appears in the compilers that do not support default arguments in template functions (known cases are Visual C++ 10 and 11): the compiler reports an ambiguity error if a handle is used in the argument of a call to the function that has two or more overloaded versions, receiving handles to different types.
The problem is that operator <i> const handle<T2>& </i> is defined for any type *T2*, thus the compiler cannot make the right choice.
Example:
If your application is essentially based on CDL, and you need to upgrade it to OCCT 7.0, you will very likely need to convert your application code to non-CDL form.
This is a non-trivial effort; the required actions would depend strongly on the structure of the code and used CDL features.
-The upgrade script and sources of a specialized WOK version used for OCCT code upgrade can be found in WOK Git repository in branch [CR0_700_2](http://git.dev.opencascade.org/gitweb/?p=occt-wok.git;a=log;h=refs/heads/CR0_700_2).
+The upgrade script and sources of a specialized WOK version used for OCCT code upgrade can be found in WOK Git repository in branch [CR0_700_2](https://git.dev.opencascade.org/gitweb/?p=occt-wok.git;a=log;h=refs/heads/CR0_700_2).
-[Contact us](http://www.opencascade.com/contact/) if you need more help.
+[Contact us](https://www.opencascade.com/contact/) if you need more help.
@subsection upgrade_occt700_bspline Separation of BSpline cache
The old mechanism for rendering Underlay and Overlay on-screen 2D objects based on *Visual3d_Layer* and immediate drawing model (uncached and thus slow) has been removed.
Classes *Aspect_Clayer2d, OpenGl_GraphicDriver_Layer, Visual3d_Layer, Visual3d_LayerItem, V3d_LayerMgr* and *V3d_LayerMgrPointer* have been deleted.
+The following auxiliary definition have been removed as well: Aspect_TypeOfPrimitive, Aspect_TypeOfLayer, Aspect_TypeOfEdge, Aspect_TypeOfDrawMode, Aspect_TypeOfConstraint, Aspect_DriverDefinitionError, Aspect_BadAccess.
General AIS interactive objects with transformation persistence flag *Graphic3d_TMF_2d* can be used as a replacement of *Visual3d_LayerItem*.
The anchor point specified for transformation persistence defines the window corner of (or center in case of (0, 0) point).
aGroup->AddElement(anElem);
// invalidate bounding box of the scene
- thePrsMgr->StructureManager()->Update (thePrsMgr->StructureManager()->UpdateMode());
+ thePrsMgr->StructureManager()->Update();
}
~~~~~
The main functionality provided by Local Context - selection of object subparts - can be now used within Neutral Point without opening any Local Context.
+The property *SelectionMode()* has been removed from the class *AIS_InteractiveObject*.
+This property contradicts to selection logic, since it is allowed to activate several Selection modes at once.
+Therefore keeping one selection mode as object field makes no sense.
+Applications that used this method should implement selection mode caching at application level, if it is necessary for some reason.
+
@subsection upgrade_occt700_separate_caf_visualisation Separation of visualization part from TKCAF
Visualization CAF attributes have been moved into a new toolkit *TKVCAF*.
@subsection upgrade_zoom_persistent_selection Zoom Persistent Selection
-Zoom persistent selection introduces a new structure *Graphic3d_TransformPers* to transform persistence methods and parameters and a new class *Graphic3d_WorldViewProjState* to refer to the camera transformation state. You might need to update your code to deal with the new classes if you were using the related features. Please, keep in mind the following:
+Zoom persistent selection introduces a new structure *Graphic3d_TransformPers* to transform persistence methods and parameters and a new class *Graphic3d_WorldViewProjState* to refer to the camera transformation state. You might need to update your code to deal with the new classes if you were using the related features. Keep in mind the following:
* *Graphic3d_Camera::ModelViewState* has been renamed to *Graphic3d_Camera::WorldViewState*.
* Transformation matrix utilities from *OpenGl_Utils* namespace have been moved to *Graphic3d_TransformUtils* and *Graphic3d_TransformUtils.hxx* header respectively.
* Matrix stack utilities from *OpenGl_Utils* namespace have been moved to *OpenGl_MatrixStack* class and *OpenGl_MatrixStack.hxx* header respectively.
-* *OpenGl_View* methods *Begin/EndTransformPersistence* have been removed. Please, use *Graphic3d_TransformPers::Apply()* instead to apply persistence to perspective and world-view projection matrices.
+* *OpenGl_View* methods *Begin/EndTransformPersistence* have been removed. Use *Graphic3d_TransformPers::Apply()* instead to apply persistence to perspective and world-view projection matrices.
@subsection upgrade_occt700_correction_of_texture Texture mapping of objects
Redundant enumerations *V3d_TypeOfSurface* and *Graphic3d_TypeOfSurface*, class *OpenGl_SurfaceDetailState*, the corresponding methods from *Graphic3d_CView, OpenGl_ShaderManager, OpenGl_View, V3d_View* and *V3d_Viewer* have been deleted.
Draw command *VSetTextureMode* has been deleted.
-@section upgrade_occt710 Upgrade to OCCT 7.1.0
-
-@subsection upgrade_occt710_correction_of_Parab2d Correction in *gp_Parab2d, gce_MakeParab2d* and *GCE2d_MakeParabola* classes:
+@subsection upgrade_occt700_wfshape Shape presentation builders
-1. Constructors *GCE2d_MakeParabola(const gp_Ax22d& D, const gp_Pnt2d& F)*, *gce_MakeParab2d(const gp_Ax22d& D, const gp_Pnt2d& F)* and *gp_Parab2d(const gp_Ax22d& D, const gp_Pnt2d& F)* have been deleted.
+Presentation tools for building Wireframe presentation have been refactored to eliminate duplicated code and interfaces.
+Therefore, the following classes have been modified:
+* *StdPrs_WFDeflectionShape* and *Prs3d_WFShape* have been removed. *StdPrs_WFShape* should be used instead.
+* *StdPrs_ToolShadedShape* has been renamed to *StdPrs_ToolTriangulatedShape*.
-2. Objects created with some constructors of *gp_Parab2d* class may differ from the previous version. Please see the updated documentation for *gp_Parab2d* class (file *gp_Parab2d.hxx*).
-
-3. Result returned by gp_Parab2d::Directrix() method has another direction in compare with previous OCCT-version.
+@section upgrade_occt710 Upgrade to OCCT 7.1.0
@subsection upgrade_710_aspects Presentation attributes
-This section should be considered if application defines custom presentations (inherited from AIS_InteractiveObject).
-Previous versions of OCCT have three levels for defining presentation properties (e.g. colors, materials):
+This section should be considered if application defines custom presentations, i.e. inherited from *AIS_InteractiveObject*.
+The previous versions of OCCT have three levels for defining presentation properties (e.g. colors, materials, etc.):
-1. For entire structure (Graphic3d_Structure / Prs3d_Presentation).
-2. For specific group of primitives (Graphic3d_Group::SetGroupPrimitivesAspect()) overriding structure aspects.
-3. For specific primitive array within graphic group (Graphic3d_Group::SetPrimitivesAspect()).
+1. For the entire structure - *Graphic3d_Structure* / *Prs3d_Presentation*.
+2. For a specific group of primitives - *Graphic3d_Group::SetGroupPrimitivesAspect()* overriding structure aspects.
+3. For a specific primitive array within the graphic group - *Graphic3d_Group::SetPrimitivesAspect()*.
-The first one is de facto not used for a long time since OCCT presentations always define aspects at graphic group level (overriding any structure aspects).
-Within this OCCT release, this first level of aspects has been completely removed. In most cases application code should just remove missing methods; in rare cases where this functionality was intentionally used - application should explicitly define aspects to appropriate graphic groups.
+The structure level has de facto not been used for a long time since OCCT presentations always define aspects at the graphic group level (overriding any structure aspects).
+Within this OCCT release, structure level of aspects has been completely removed. In most cases the application code should just remove missing methods. In those rare cases, when this functionality was intentionally used, the application should explicitly define aspects to the appropriate graphic groups.
-Note that the 3rd level (defining several different aspects within the same graphic group) is also should be avoided in application code since it is deprecated functionality which can be removed in further releases.
-Graphic3d_Group::SetGroupPrimitivesAspect() should be the main method defining presentation attributes.
+Note that defining several different aspects within the same graphic group should also be avoided in the application code since it is a deprecated functionality which can be removed in further releases.
+*Graphic3d_Group::SetGroupPrimitivesAspect()* should be the main method defining presentation attributes.
-The implementation of Graphic3d_Group::SetGroupPrimitivesAspect() has been changed from copying aspect values to keeping passed object.
-Although it was not documented, previosly it was possible to modify single aspects instance (like Graphic3d_AspectFillArea3d) and set it to multiple groups.
-Now such code would produce unexpected result and therefore should be updated to create dedicated aspect instance.
+The implementation of *Graphic3d_Group::SetGroupPrimitivesAspect()* has been changed from copying aspect values to keeping the passed object.
+Although it was not documented, previously it was possible to modify a single aspect instance, like *Graphic3d_AspectFillArea3d* and set it to multiple groups.
+Now such code would produce an unexpected result and therefore should be updated to create the dedicated aspect instance.
@subsection upgrade_710_types Typedefs
- *Standard_Utf16Char* is now *char16_t* (previously *uint16_t* for compatibility with old compilers).
- *Standard_Utf32Char* is now *char32_t* (previously *uint32_t* for compatibility with old compilers).
-For most applications this change should be transparent, since the size of types have not been changed.
+For most applications this change should be transparent on the level of source code. Binary compatibility is not maintained, as *bool* has a different size in comparison with *unsigned int*.
@subsection upgrade_710_ffp Programmable Pipeline
Fixed-function pipeline has been already deprecated since OCCT 7.0.0.
Release 7.1.0 disables this functionality by default in favor of Programmable Pipeline (based on GLSL programs).
-This also means that method *V3d_View::Export()* based on gl2ps library and requiring disabled by default functionality has been deprecated as well.
-Applications should explicitly enable deprecated functionality by setting OpenGl_Caps::ffpEnable flag to TRUE within OpenGl_GraphicDriver::ChangeOptions() before creating the viewer to use V3d_View::Export(),
-but being aware that this functionality is likely to be removed in a next OCCT release.
-Thus the recommended way to generate vector image of a 3D model or scene is to use application-level solution independent from OpenGL.
+Method *V3d_View::Export()*, based on *gl2ps* library, requires fixed pipeline and will return error if used with default settings.
+Applications should explicitly enable fixed pipeline by setting *OpenGl_Caps::ffpEnable* flag to TRUE within *OpenGl_GraphicDriver::ChangeOptions()* before creating the viewer to use *V3d_View::Export()*.
+This method is declared as deprecated and will be removed in one of the the next OCCT releases.
+The recommended way to generate a vector image of a 3D model or scene is to use an application-level solution independent from OpenGL.
@subsection upgrade_710_trsfpers Transformation persistence
-The behavior of transformation persistence flags *Graphic3d_TMF_ZoomPers* and *Graphic3d_TMF_TriedronPers* have been changed to be consistent with textured fixed-size 2D text.
-Object with these flags is considered to be defined in pixel units, and presentation is no more scaled depending on view height.
-Applications that need to scale such objects depending on viewport size should update them manually.
+The behavior of transformation persistence flags *Graphic3d_TMF_ZoomPers* and *Graphic3d_TMF_TriedronPers* has been changed for consistency with a textured fixed-size 2D text.
+An object with these flags is considered as defined in pixel units, and the presentation is no more scaled depending on the view height.
+The applications that need to scale such objects depending on viewport size should update them manually.
-Flags *Graphic3d_TMF_PanPers* and *Graphic3d_TMF_FullPers* has been removed.
-*Graphic3d_TMF_TriedronPers* or *Graphic3d_TMF_2d* can be used instead depending on context.
+Flags *Graphic3d_TMF_PanPers* and *Graphic3d_TMF_FullPers* have been removed.
+*Graphic3d_TMF_TriedronPers* or *Graphic3d_TMF_2d* can be used instead depending on the context.
*Graphic3d_TransModeFlags* is not an integer bitmask anymore - enumeration values should be specified instead.
-Several transformation persistence methods in PrsMgr_PresentableObject have been marked deprecated.
-Transformation persistence should be defined using directly Graphic3d_TransformPers constructor and passed by a handle, not value.
+Several transformation persistence methods in *PrsMgr_PresentableObject* have been marked deprecated.
+Transformation persistence should be defined using *Graphic3d_TransformPers* constructor directly and passed by a handle, not value.
+
+@subsection upgrade_710_selprops Dynamic highlight and selection properties
+
+Release 7.1.0 introduces *Graphic3d_HighlightStyle* - an entity that allows flexible customization of highlighting parameters (such as highlighting method, color, and transparency). Therefore, the signatures of the following methods related to highlighting:
+- *AIS_InteractiveContext::Hilight()*;
+- *AIS_InteractiveContext::HilightWithColor()*;
+- *PrsMgr_PresentationManager::Color()*;
+- *SelectMgr_EntityOwner::HilightWithColor()*;
+have been changed to receive *Graphic3d_HighlightStyle* instead of *Quantity_Color*.
+
+Method *AIS_InteractiveContext::Hilight* is now deprecated and highlights the interactive object with selection style.
+
+A group of methods *AIS_InteractiveContext::IsHilighted* has changed its behavior - now they only check highlight flags of the object or the owner in the global status. If the highlight color is required on the application level, it is necessary to use overloaded methods *AIS_InteractiveContext::HighlightStyle* for the owner and the object.
-@subsection_upgrade_710_selprops Dynamic highlight and selection properties
+The following methods have been replaced in *AIS_InteractiveContext* class:
+- *HilightColor* and *SetHilightColor* by *HighlightStyle* and *SetHighlightStyle*;
+- *SelectionColor* setter and getter by *SelectionStyle* and *SetSelectionStyle*.
-Release 7.1.0 introduces *Graphic3d_HighlightStyle* - an entity that allows flexible customization of highlighting parameters (such as method, highlight color and transparency). Therefore, API of methods related to highlighting in the following core classes:
-- *AIS_InteractiveContext* (methods HilightWithColor(), Hilight());
-- *PrsMgr_PresentationManager* (method Color());
-- *SelectMgr_EntityOwner* (method HilightWithColor())
-was changed to process Graphic3d_HighlightStyle instead of Quantity_Color.
+The API of *Prs3d_Drawer* has been extended to allow setting up styles for both dynamic selection and highlighting. Therefore, it is possible to change the highlight style of a particular object on the application level via *SelectMgr_SelectableObject::HilightAttributes()* and process it in the entity owner.
-Method AIS_InteractiveContext::Hilight is now deprecated and highlights interactive object with selection style.
+@subsection upgrade_occt710_correction_of_TObj_Model Correction in TObj_Model class
+
+Methods *TObj_Model::SaveAs* and *TObj_Model::Load* now receive *TCollection_ExtendedString* filename arguments instead of char*. UTF-16 encoding can be used to pass file names containing Unicode symbols.
+
+@subsection upgrade_710_env Redundant environment variables
-Group of methods AIS_InteractiveContext::IsHilighted changed behavior - now they only check object's or owner's highlight flags in global status. If highlight color is required on application level, overloaded methods AIS_InteractiveContext::HighlightStyle for owner and object must be used instead.
+The following environment variables have become redundant:
-The following methods were replaced in AIS_InteractiveContext API:
-- *HilightColor*, *SetHilightColor* were replaced by *HighlightStyle*, *SetHighlightStyle*;
-- *SelectionColor* setter and getter were replaced by *SelectionStyle*, *SetSelectionStyle*.
+* *CSF_UnitsLexicon* and *CSF_UnitsDefinition* are no more used. Units definition (*UnitsAPI/Lexi_Expr.dat* and *UnitsAPI/Units.dat*) is now embedded into source code.
+* *CSF_XSMessage* and *CSF_XHMessage* are now optional.
+ English messages (XSMessage/\*XSTEP.us* and SHMessage/\*SHAPE.us*) are now embedded into source code
+ and automatically loaded when environment variables are not set.
+* *CSF_ShadersDirectory* is not required any more, though it still can be used to load custom shaders.
+ Mandatory GLSL resources are now embedded into source code.
+* *CSF_PluginDefaults* and other variables pointing to OCAF plugin resources (*CSF_StandardDefaults*, *CSF_XCAFDefaults*, *CSF_StandardLiteDefaults* and *CSF_XmlOcafResource*) are not necessary if method *TDocStd_Application::DefineFormat()* is used to enable persistence of OCAF documents.
-API of Prs3d_Drawer was extended to allow setting up styles for both dynamic selection and highlighting. Therefore, on application level changing highlight style for particular object must be implemented via SelectMgr_SelectableObject::HilightAttributes() and processed in entity owner.
+Other environment variables still can be used to customize behavior of relevant algorithms but are not necessary any more (all required resources are embedded).
@subsection upgrade_710_removed Removed features
The following obsolete features have been removed:
-
-* Obsolete Antialiasing API *V3d_View::SetAntialiasingOn()*. This method was intended to activate deprecated OpenGL functionality (GL_POLYGON_SMOOTH, GL_LINE_SMOOTH, GL_POINT_SMOOTH).
- Instead of old API, application should request MSAA buffers for antialiasing by assigning *Graphic3d_RenderingParams::NbMsaaSamples* property of structure returned by *V3d_View::ChangeRenderingParams()*.
-* *Prs3d_Drawer::ShadingAspectGlobal()* flag has been removed as not used. Corresponding calls can be removed safely from the application code.
-* ZClipping planes and ZCueing (methods *V3d_View::SetZClippingType()*, *::SetZCueingOn()* and V3d_View::others).
- ZClipping planes can be replaced by general-purpose clipping planes (application should update plane definion manually).
-* 3D viewer printing API *V3d_View::Print()* has been removed. This functionality was available on Windows platforms only.
- Applications should use general image dump API *V3d_View::ToPixMap()* and manage printing using platform-specific API at application level.
+* Anti-aliasing API *V3d_View::SetAntialiasingOn()*. This method was intended to activate deprecated OpenGL functionality *GL_POLYGON_SMOOTH, GL_LINE_SMOOTH* and *GL_POINT_SMOOTH*.
+ Instead of the old API, the application should request MSAA buffers for anti-aliasing by assigning *Graphic3d_RenderingParams::NbMsaaSamples* property of the structure returned by *V3d_View::ChangeRenderingParams()*.
+* *Prs3d_Drawer::ShadingAspectGlobal()* flag has been removed as not used. The corresponding calls can be removed safely from the application code.
+* The methods managing ZClipping planes and ZCueing: *V3d_View::SetZClippingType()*, *V3d_View::SetZCueingOn()*, etc. have been removed. ZClipping planes can be replaced by general-purpose clipping planes (the application should update plane definition manually).
+* The 3D viewer printing API *V3d_View::Print()* has been removed. This functionality was available on Windows platforms only. The applications should use the general image dump API *V3d_View::ToPixMap()* and manage printing using a platform-specific API at the application level.
Text resolution can be managed by rendering parameter *Graphic3d_RenderingParams::Resolution*, returned by *V3d_View::ChangeRenderingParams()*.
-* Methods PrsMgr_PresentationManager::BoundBox, PrsMgr_PresentationManager::Hilight and SelectMgr_EntityOwner::Hilight were removed as not used.
- Corresponding method in custom implementations of SelectMgr_EntityOwner can be removed safely. PrsMgr_PresentationManager::Color with corresponding style must be used instead of removed presentation manager's methods.
+* Methods *PrsMgr_PresentationManager::BoundBox*, *PrsMgr_PresentationManager::Hilight* and *SelectMgr_EntityOwner::Hilight* have been removed as not used. The corresponding method in custom implementations of *SelectMgr_EntityOwner* can be removed safely. *PrsMgr_PresentationManager::Color* with the corresponding style must be used instead.
+* Class *NCollection_QuickSort* has been removed. The code that used the tools provided by that class should be corrected manually. The recommended approach is to use sorting algorithms provided by STL (std::sort). See also @ref upgrade_occt700_sorttools above.
-@subsection upgrade_occt710_correction_of_TObj_Model Correction in TObj_Model class
+* Package *Dico*. The code that used the tools provided by that package should be corrected manually. The recommended approach is to use *NCollection_DataMap* and *NCollection_IndexedDataMap* classes.
-Methods *TObj_Model::SaveAs* and *TObj_Model::Load* receive *TCollection_ExtendedString* filename arguments instead of char*. This shows that the filename may be not-ASCII explicitly. Also it makes OCAF API related to this functionality more conform.
+@subsection upgrade_710_changed_methods Other changes
+The following classes have been changed:
-@subsection upgrade_occt710_sorttools Removal of NCollection_QuickSort class
+* *BVH_Sorter* class has become abstract. The list of arguments of both *Perform* methods has been changed and the methods became pure virtual.
+* *Extrema_FuncExtPS* has been renamed to *Extrema_FuncPSNorm*.
+* The default constructor and the constructor taking a point and a surface have been removed from class *Extrema_GenLocateExtPS*. Now the only constructor takes the surface and optional tolerances in U and V directions. The new method *Perform* takes the point with the start solution and processes it. The class has become not assignable and not copy-constructable.
+* Constructors with arguments *(const gp_Ax22d& D, const gp_Pnt2d& F)* have been removed from *GCE2d_MakeParabola*, *gce_MakeParab2d* and *gp_Parab2d*. The objects created with some constructors of class *gp_Parab2d* may differ from the previous version (see the comments in *gp_Parab2d.hxx*). The result returned by *gp_Parab2d::Directrix()* method has an opposite direction in comparison with the previous OCCT versions.
+* *BRepTools_Modifier* class now has two modes of work. They are defined by the boolean parameter *MutableInput*, which is turned off by default. This means that the algorithm always makes a copy of a sub-shape (e.g. vertex) if its tolerance is to be increased in the output shape. The old mode corresponds to *MutableInput* turned on. This change may impact an application if it implements a class derived from *BRepTools_Modifier*.
+* The second parameter *theIsOuterWire* of method *ShapeAnalysis_Wire::CheckSmallArea* has been removed.
+* In class *GeomPlate_CurveConstraint*, two constructors taking boundary curves of different types have been replaced with one constructor taking the curve of an abstract type.
+* The last optional argument *RemoveInvalidFaces* has been removed from the constructor of class *BRepOffset_MakeOffset* and method *Initialize*.
+* The public method *BOPDS_DS::VerticesOnIn* has been renamed into *SubShapesOnIn* and the new output parameter *theCommonPB* has been added.
-Class *NCollection_QuickSort* has been removed.
-The code that used the tools provided by that class should be corrected manually.
-The recommended approach is to use sorting algorithms provided by STL.
+@section upgrade_occt720 Upgrade to OCCT 7.2.0
+
+@subsection upgrade_720_removed Removed features
+
+The following obsolete features have been removed:
+* *AIS_InteractiveContext::PreSelectionColor()*, *DefaultColor()*, *WasCurrentTouched()*, *ZDetection()*.
+ These properties were unused, and therefore application should remove occurrences of these methods.
+* *AIS_InteractiveObject::SelectionPriority()*.
+ These property was not implemented.
+* The class *LocOpe_HBuilder* has been removed as obsolete.
+* The package *TestTopOpe* has been removed;
+* The package *TestTopOpeDraw* has been removed;
+* The package *TestTopOpeTools* has been removed.
+* The packages *QANewModTopOpe*, *QANewBRepNaming* and *QANewDBRepNaming* have been removed as containing obsolete features.
+* The following methods of the *IntPolyh_Triangle* class have been removed as unused:
+ - *CheckCommonEdge*
+ - *SetEdgeandOrientation*
+ - *MultipleMiddleRefinement2*.
+* The method *IntPolyh_Triangle::TriangleDeflection* has been renamed to *IntPolyh_Triangle::ComputeDeflection*.
+* The following methods of the *IntPolyh_MaillageAffinage* class have been removed as unused:
+ - *LinkEdges2Triangles*;
+ - *TriangleEdgeContact2*;
+ - *StartingPointsResearch2*;
+ - *NextStartingPointsResearch2*;
+ - *TriangleComparePSP*;
+ - *StartPointsCalcul*.
+* The method PerformAdvanced of the *ShapeConstruct_ProjectCurveOnSurface* class has been removed as unused.
+* The method Perform of the *ShapeConstruct_ProjectCurveOnSurface* class is modified:
+ - input arguments *continuity*, *maxdeg*, *nbinterval* have been removed as unused;
+ - input arguments *TolFirst*, *TolLast* have been added at the end of arguments' list.
+* Typedefs Quantity_Factor, Quantity_Parameter, Quantity_Ratio, Quantity_Coefficient, Quantity_PlaneAngle, Quantity_Length, V3d_Parameter and V3d_Coordinate have been removed; Standard_Real should be used instead.
+
+@subsection upgrade_occt720_reshape_oriented_removed Corrections in BRepOffset API
+
+In classes *BRepTools_ReShape* and *ShapeBuild_ReShape*, the possibility to process shapes different only by orientation in different ways has been removed.
+Thus methods *Remove()* and *Replace()* do not have any more the last argument 'oriented'; they work always as if *Standard_False* was passed before (default behavior).
+Methods *ModeConsiderLo()* and *Apply()* with three arguments have been removed.
+
+@subsection upgrade_occt720_correction_of_Offset_API Corrections in BRepOffset API
+
+Class *BRepOffsetAPI_MakeOffsetShape*:
+* *BRepOffsetAPI_MakeOffsetShape::BRepOffsetAPI_MakeOffsetShape()* - constructor with parameters has been deleted.
+* *BRepOffsetAPI_MakeOffsetShape::PerformByJoin()* - method has been added. This method is old algorithm behaviour.
+
+The code below shows new calling procedure:
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.cpp}
+ BRepOffsetAPI_MakeOffsetShape OffsetMaker;
+ OffsetMaker.PerformByJoin(Shape, OffsetValue, Tolerance);
+ NewShape = OffsetMaker.Shape();
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Class *BRepOffsetAPI_MakeThickSolid*:
+* *BRepOffsetAPI_MakeThickSolid::BRepOffsetAPI_MakeThickSolid()* - constructor with parameters has been deleted.
+* *BRepOffsetAPI_MakeThickSolid::MakeThickSolidByJoin()* - method has been added. This method is old algorithm behaviour.
+
+The code below shows new calling procedure:
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.cpp}
+ BRepOffsetAPI_MakeThickSolid BodyMaker;
+ BodyMaker.MakeThickSolidByJoin(myBody, facesToRemove, -myThickness / 50, 1.e-3);
+ myBody = BodyMaker.Shape();
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+@subsection upgrade_720_highlight Highlight style
+
+Management of highlight attributes has been revised and might require modifications from application side:
+* New class *Graphic3d_PresentationAttributes* defining basic presentation attributes has been introduced.
+ It's definition includes properties previously defined by class Graphic3d_HighlightStyle (*Color*, *Transparency*),
+ and new properties (*Display mode*, *ZLayer*, optional *FillArea aspect*).
+* Class *Prs3d_Drawer* now inherits class *Graphic3d_PresentationAttributes*.
+ So that overall presentation attributes are now split into two parts - Basic attributes and Detailed attributes.
+* Class *Graphic3d_HighlightStyle* has been dropped.
+ It is now defined as a typedef to *Prs3d_Drawer*.
+ Therefore, highlight style now also includes not only Basic presentation attributes, but also Detailed attributes
+ which can be used by custom presentation builders.
+* Highlighting style defined by class *Graphic3d_PresentationAttributes* now provides more options:
+ - *Graphic3d_PresentationAttributes::BasicFillAreaAspect()* property providing complete Material definition.
+ This option, when defined, can be used instead of the pair Object Material + Highlight Color.
+ - *Graphic3d_PresentationAttributes::ZLayer()* property specifying the Layer where highlighted presentation should be shown.
+ This property can be set to Graphic3d_ZLayerId_UNKNOWN, which means that ZLayer of main presentation should be used instead.
+ - *Graphic3d_PresentationAttributes::DisplayMode()* property specifying Display Mode for highlight presentation.
+* Since Highlight and Selection styles within *AIS_InteractiveContext* are now defined by *Prs3d_Drawer* inheriting from *Graphic3d_PresentationAttributes*,
+ it is now possible to customize default highlight attributes like *Display Mode* and *ZLayer*, which previously could be defined only on Object level.
+* Properties *Prs3d_Drawer::HighlightStyle()* and *Prs3d_Drawer::SelectionStyle()* have been removed.
+ Instead, *AIS_InteractiveObject* now defines *DynamicHilightAttributes()* for dynamic highlighting in addition to *HilightAttributes()* used for highlighting in selected state.
+ Note that *AIS_InteractiveObject::HilightAttributes()* and *AIS_InteractiveObject::DynamicHilightAttributes()* override highlighting properties for both - entire object and for part coming from decomposition.
+ This includes Z-layer settings, which will be the same when overriding properties through AIS_InteractiveObject, while *AIS_InteractiveContext::HighlightStyle()* allows customizing properties for local and global selection independently
+ (with Graphic3d_ZLayerId_Top used for dynamic highlighting of entire object and Graphic3d_ZLayerId_Topmost for dynamic highlighting of object part by default).
+* The following protected fields have been removed from class *AIS_InteractiveObject*:
+ - *myOwnColor*, replaced by *myDrawer->Color()*
+ - *myTransparency*, replaced by *myDrawer->Transparency()*
+ - *myZLayer*, replaced by *myDrawer->ZLayer()*
+* The method *PrsMgr_PresentationManager::Unhighlight()* taking Display Mode as an argument has been marked deprecated.
+ Implementation now performs unhighlighting of all highlighted presentation mode.
+* The methods taking/returning *Quantity_NameOfColor* (predefined list of colors) and duplicating methods operating with *Quantity_Color* (definition of arbitrary RGB color) in AIS have been removed.
+ *Quantity_Color* should be now used instead.
+
+@subsection upgrade_720_implicit_viewer_update Elimination of implicit 3D Viewer updates
+
+Most AIS_InteractiveContext methods are defined with a flag to update viewer immediatly or not.
+Within previous version of OCCT, this argument had default value TRUE.
+While immediate viewer updates are useful for beginners (the result is displayed as soon as possible),
+this approach is inefficent for batch viewer updates, and having default value as TRUE
+leaded to non-intended accidential updates which are difficult to find.
+
+To avoid such issues, the interface has been modified and default value has been removed.
+Therefore, old application code should be updated to set the flag theToUpdateViewer explicitly
+to desired value (TRUE to preserve old previous behavior), if it was not already set.
+
+The following AIS_InteractiveContext methods have been changed:
+ Display, Erase, EraseAll, DisplayAll, EraseSelected, DisplaySelected, ClearPrs, Remove, RemoveAll, Hilight,
+ HilightWithColor, Unhilight, Redisplay, RecomputePrsOnly, Update, SetDisplayMode, UnsetDisplayMode, SetColor,
+ UnsetColor, SetWidth, UnsetWidth, SetMaterial, UnsetMaterial, SetTransparency, UnsetTransparency,
+ SetLocalAttributes, UnsetLocalAttributes, SetPolygonOffsets, SetTrihedronSize, SetPlaneSize, SetPlaneSize,
+ SetDeviationCoefficient, SetDeviationAngle, SetAngleAndDeviation, SetHLRDeviationCoefficient,
+ SetHLRDeviationAngle, SetHLRAngleAndDeviation, SetSelectedAspect, MoveTo, Select, ShiftSelect, SetSelected,
+ UpdateSelected, AddOrRemoveSelected, HilightSelected, UnhilightSelected, ClearSelected, ResetOriginalState,
+ SubIntensityOn, SubIntensityOff, FitSelected, EraseGlobal, ClearGlobal, ClearGlobalPrs.
+
+In addition, the API for immediate viewer update has been removed from V3d_View and Graphic3d_StructureManager classes
+(enumerations *Aspect_TypeOfUpdate* and *V3d_TypeOfUpdate*):
+ V3d::SetUpdateMode(), V3d::UpdateMode(), Graphic3d_StructureManager::SetUpdateMode(), Graphic3d_StructureManager::UpdateMode().
+
+The argument theUpdateMode has been removed from methods Graphic3d_CView::Display(), Erase(), Update().
+Method Graphic3d_CView::Update() does not redraw the view and does not re-compute structures anymore.
+
+The following Grid management methods within class V3d_Viewer do not implicitly redraw the viewer:
+ ActivateGrid, DeactivateGrid, SetRectangularGridValues, SetCircularGridValues,
+ RectangularGridGraphicValues, CircularGridGraphicValues, SetPrivilegedPlane, DisplayPrivilegedPlane.
+
+@subsection upgrade_720_v3d_colorname Elimination of Quantity_NameOfColor from TKV3d interface classes
+
+The duplicating interface methods accepting *Quantity_NameOfColor* (in addition to methods accepting *Quantity_Color*) of TKV3d toolkit have been removed.
+In most cases this change should be transparent, however applications implementing such interface methods should also remove them
+(compiler will automatically highlight this issue for methods marked with Standard_OVERRIDE keyword).
+
+@subsection upgrade_720_Result_Of_BOP_On_Containers Result of Boolean operations on containers
+
+* The result of Boolean operations on arguments of collection types (WIRE/SHELL/COMPSOLID) is now filtered from duplicating containers.
+
+@subsection upgrade_720_changes_methods Other changes
+
+* *MMgt_TShared* class definition has been removed - Standard_Transient should be used instead (MMgt_TShared is marked as deprecated typedef of Standard_Transient for smooth migration).
+* Class GeomPlate_BuildPlateSurface accepts base class Adaptor3d_HCurve (instead of inherited Adaptor3d_HCurveOnSurface accepted earlier).
+* Types GeomPlate_Array1OfHCurveOnSurface and GeomPlate_HArray1OfHCurveOnSurface have been replaced with GeomPlate_Array1OfHCurve and GeomPlate_HArray1OfHCurve correspondingly (accept base class Adaptor3d_HCurve instead of Adaptor3d_HCurveOnSurface).
+* Enumeration *Image_PixMap::ImgFormat*, previously declared as nested enumeration within class *Image_PixMap*, has been moved to global namespace as *Image_Format* following OCCT coding rules.
+ The enumeration values have suffix Image_Format_ and preserve previous name scheme for easy renaming of old values - e.g. Image_PixMap::ImgGray become Image_Format_Gray.
+ Old definitions are preserved as depreacated aliases to the new ones;
+* Methods *Image_PixMap::PixelColor()* and *Image_PixMap::SetPixelColor()* now take/return Quantity_ColorRGBA instead of Quantity_Color/NCollection_Vec4.
+* The method BOPAlgo_Builder::Origins() returns BOPCol_DataMapOfShapeListOfShape instead of BOPCol_DataMapOfShapeShape.
+* The methods BOPDS_DS::IsToSort(const Handle(BOPDS_CommonBlock)&, Standard_Integer&) and BOPDS_DS::SortPaveBlocks(const Handle(BOPDS_CommonBlock)&) have been removed. The sorting is now performed during the addition of the Pave Blocks into Common Block.
+* The methods BOPAlgo_Tools::MakeBlocks() and BOPAlgo_Tools::MakeBlocksCnx() have been replaced with the single template method BOPAlgo_Tools::MakeBlocks(). The chains of connected elements are now stored into the list of list instead of data map.
+* The methods BOPAlgo_Tools::FillMap() have been replaced with the single template method BOPAlgo_Tools::FillMap().
+* Package BVH now uses opencascade::handle instead of NCollection_Handle (for classes BVH_Properties, BVH_Builder, BVH_Tree, BVH_Object).
+ Application code using BVH package directly should be updated accordingly.
+* AIS_Shape now computes UV texture coordinates for AIS_Shaded presentation in case if texture mapping is enabled within Shaded Attributes.
+ Therefore, redundant class *AIS_TexturedShape is now deprecated* - applications can use *AIS_Shape* directly (texture mapping should be defined through AIS_Shape::Attributes()).
+* Methods for managing active texture within OpenGl_Workspace class (ActiveTexture(), DisableTexture(), EnableTexture()) have been moved to *OpenGl_Context::BindTextures()*.
+
+@subsection upgrade_720_BOP_DataStructure BOP - Pairs of interfering indices
+
+* The classes *BOPDS_PassKey* and *BOPDS_PassKeyBoolean* are too excessive and not used any more in Boolean Operations. To replace them the new *BOPDS_Pair* class has been implemented. Thus:
+ - The method *BOPDS_DS::Interferences()* now returns the *BOPDS_MapOfPair*;
+ - The method *BOPDS_Iterator::Value()* takes now only two parameters - the indices of interfering sub-shapes.
+
+@subsection upgrade_720_Removal_Of_Old_Boolean_Operations_Draw Removal of the Draw commands based on old Boolean operations
+
+* The commands *fubl* and *cubl* have been removed. The alternative for these commands are the commands *bfuseblend* and *bcutblend* respectively.
+* The command *ksection* has been removed. The alternative for this command is the command *bsection*.
+
+@subsection upgrade_720_Change_Of_FaceFace_Intersection Change of Face/Face intersection in Boolean operations
+
+* Previously, the intersection tolerance for all section curves between pair of faces has been calculated as the maximal tolerance among all curves.
+ Now, each curve has its own valid tolerance calculated as the maximal deviation of the 3D curve from its 2D curves or surfaces in case there are no 2D curves.
+* The methods *IntTools_FaceFace::TolReached3d()*, *IntTools_FaceFace::TolReal()* and *IntTools_FaceFace::TolReached2d()* have been removed.
+* Intersection tolerances of the curve can be obtained from the curve itself:
+ - *IntTools_Curve::Tolerance()* - returns the valid tolerance for the curve;
+ - *IntTools_Curve::TangentialTolerance()* - returns the tangential tolerance, which reflects the size of the common between faces.
+* 2d tolerance (*IntTools_FaceFace::TolReached2d()*) has been completely removed from the algorithm as unused.
+
+
+@subsection upgrade_720_persistence Restore OCCT 6.9.1 persistence
+
+The capability of reading / writing files in old format using *Storage_ShapeSchema* functionality from OCCT 6.9.1 has been restored in OCCT 7.2.0.
+
+One can use this functionality in two ways:
+- invoke DRAW Test Harness commands *fsdread / fsdwrite* for shapes;
+- call *StdStorage* class *Read / Write* functions in custom code.
+
+The code example below demonstrates how to read shapes from a storage driver using *StdStorage* class.
+
+~~~~
+// aDriver should be created and opened for reading
+Handle(StdStorage_Data) aData;
+
+// Read data from the driver
+// StdStorage::Read creates aData instance automatically if it is null
+Storage_Error anError = StdStorage::Read(*aDriver, aData);
+if (anError != Storage_VSOk)
+{
+ // Error processing
+}
+
+// Get root objects
+Handle(StdStorage_RootData) aRootData = aData->RootData();
+Handle(StdStorage_HSequenceOfRoots) aRoots = aRootData->Roots();
+if (!aRoots.IsNull())
+{
+ // Iterator over the sequence of root objects
+ for (StdStorage_HSequenceOfRoots::Iterator anIt(*aRoots); anIt.More(); anIt.Next())
+ {
+ Handle(StdStorage_Root)& aRoot = anIt.ChangeValue();
+ // Get a persistent root's object
+ Handle(StdObjMgt_Persistent) aPObject = aRoot->Object();
+ if (!aPObject.IsNull())
+ {
+ Handle(ShapePersistent_TopoDS::HShape) aHShape = Handle(ShapePersistent_TopoDS::HShape)::DownCast(aPObject);
+ if (aHShape) // Downcast to an expected type to import transient data
+ {
+ TopoDS_Shape aShape = aHShape->Import();
+ shapes.Append(aShape);
+ }
+ }
+ }
+}
+~~~~
+
+The following code demonstrates how to write shapes in OCCT 7.2.0 using *StdStorage* class.
+
+~~~~
+// Create a file driver
+NCollection_Handle<Storage_BaseDriver> aFileDriver(new FSD_File());
+
+// Try to open the file driver for writing
+try
+{
+ OCC_CATCH_SIGNALS
+ PCDM_ReadWriter::Open (*aFileDriver, TCollection_ExtendedString(theFilename), Storage_VSWrite);
+}
+catch (Standard_Failure& e)
+{
+ // Error processing
+}
+
+// Create a storage data instance
+Handle(StdStorage_Data) aData = new StdStorage_Data();
+// Set an axiliary application name (optional)
+aData->HeaderData()->SetApplicationName(TCollection_ExtendedString("Application"));
+
+// Provide a map to track sharing
+StdObjMgt_TransientPersistentMap aMap;
+// Iterator over a collection of shapes
+for (Standard_Integer i = 1; i <= shapes.Length(); ++i)
+{
+ TopoDS_Shape aShape = shapes.Value(i);
+ // Translate a shape to a persistent object
+ Handle(ShapePersistent_TopoDS::HShape) aPShape =
+ ShapePersistent_TopoDS::Translate(aShape, aMap, ShapePersistent_WithTriangle);
+ if (aPShape.IsNull())
+ {
+ // Error processing
+ }
+
+ // Construct a root name
+ TCollection_AsciiString aName = TCollection_AsciiString("Shape_") + i;
+
+ // Add a root to storage data
+ Handle(StdStorage_Root) aRoot = new StdStorage_Root(aName, aPShape);
+ aData->RootData()->AddRoot(aRoot);
+}
+
+// Write storage data to the driver
+Storage_Error anError = StdStorage::Write(*aFileDriver, aData);
+if (anError != Storage_VSOk)
+{
+ // Error processing
+}
+~~~~
+
+@subsection upgrade_720_Change_In_BRepLib_MakeFace_Algo Change in BRepLib_MakeFace algorithm
+
+Previously, *BRepLib_MakeFace* algorithm changed orientation of the source wire in order to avoid creation of face as a hole (i.e. it is impossible to create the entire face as a hole; the hole can be created in context of another face only). New algorithm does not reverse the wire if it is open. Material of the face for the open wire will be located on the left side from the source wire.
+
+@subsection upgrade_720_Change_In_BRepFill_OffsetWire Change in BRepFill_OffsetWire algorithm
+
+From now on, the offset will always be directed to the outer region in case of positive offset value and to the inner region in case of negative offset value.
+Inner/Outer region for an open wire is defined by the following rule:
+when we go along the wire (taking into account edges orientation) the outer region will be on the right side, the inner region will be on the left side.
+In case of a closed wire, the inner region will always be inside the wire (at that, the edges orientation is not taken into account).
+
+@subsection upgrade_720_Change_In_GeomAdaptor_Curve Change in Geom(2d)Adaptor_Curve::IsPeriodic
+
+Since 7.2.0 version, method *IsPeriodic()* returns the corresponding status of periodicity of the basis curve regardless of closure status of the adaptor curve (see method *IsClosed()*).
+Method *IsClosed()* for adaptor can return false even on periodic curve, in the case if its parametric range is not full period, e.g. for adaptor on circle in range [0, @f$ \pi @f$].
+In previous versions, *IsPeriodic()* always returned false if *IsClosed()* returned false.
+
+@subsection upgrade_720_UnifySameDomain Change in algorithm ShapeUpgrade_UnifySameDomain
+
+The history of the changing of the initial shape was corrected:
+* all shapes created by the algorithm are considered as modified shapes instead of generated ones;
+* method Generated was removed and its calls should be replaced by calls of method History()->Modified.
+
+@subsection upgrade_720_Change_In_RWStl Changes in STL Reader / Writer
+
+Class RWStl now uses class Poly_Triangulation for storing triangular mesh instead of StlMesh data classes; the latter have been removed.
+
+@subsection upgrade_720_New_Error_Warning_system_in_BOA Refactoring of the Error/Warning reporting system in Boolean Component
+
+The Error/Warning reporting system of the algorithms in Boolean Component (in all BOPAlgo_* and BRepAlgoAPI_* algorithms) has been refactored.
+The methods returning the status of errors and warnings of the algorithms (ErrorStatus() and WarningStatus()) have been removed.
+Instead use methods HasErrors() and HasWarnings() to check for presence of errors and warnings, respectively.
+The full list of errors and warnings, with associated data such as problematic sub-shapes, can be obtained by method GetReport().
+
+@section upgrade_occt721 Upgrade to OCCT 7.2.1
+
+@subsection upgrade_721_Changes_In_USD Changes in ShapeUpgrade_UnifySameDomain
+
+The following public methods in the class ShapeUpgrade_UnifySameDomain became protected:
+* *UnifyFaces*
+* *UnifyEdges*
+
+The following public method has been removed:
+* *UnifyFacesAndEdges*
+
+@subsection upgrade_721_Move_BuildPCurveForEdgeOnPlane Moving BuildPCurveForEdgeOnPlane from BOPTools_AlgoTools2D to BRepLib
+
+The methods BuildPCurveForEdgeOnPlane and BuildPCurveForEdgesOnPlane have been moved from the class BOPTools_AlgoTools2D
+to the more lower level class BRepLib.
+
+@subsection upgrade_721_removed Removed features
+
+The following obsolete features have been removed:
+* The package BOPCol has been fully removed:
+ - *BOPCol_BaseAllocator* is replaced with *Handle(NCollection_BaseAllocator)*;
+ - *BOPCol_BoxBndTree* is replaced with *BOPTools_BoxBndTree*;
+ - *BOPCol_Box2DBndTree* is removed as unused;
+ - *BOPCol_DataMapOfIntegerInteger* is replaced with *TColStd_DataMapOfIntegerInteger*;
+ - *BOPCol_DataMapOfIntegerListOfInteger* is replaced with *TColStd_DataMapOfIntegerListOfInteger*;
+ - *BOPCol_DataMapOfIntegerListOfShape* is replaced with *TopTools_DataMapOfIntegerListOfShape*;
+ - *BOPCol_DataMapOfIntegerMapOfInteger.hxx* is removed as unused;
+ - *BOPCol_DataMapOfIntegerReal* is replaced with *TColStd_DataMapOfIntegerReal*;
+ - *BOPCol_DataMapOfIntegerShape* is replaced with *TopTools_DataMapOfIntegerShape*;
+ - *BOPCol_DataMapOfShapeBox* is replaced with *TopTools_DataMapOfShapeBox*;
+ - *BOPCol_DataMapOfShapeInteger* is replaced with *TopTools_DataMapOfShapeInteger*;
+ - *BOPCol_DataMapOfShapeListOfShape* is replaced with *TopTools_DataMapOfShapeListOfShape*;
+ - *BOPCol_DataMapOfShapeReal* is replaced with *TopTools_DataMapOfShapeReal*;
+ - *BOPCol_DataMapOfShapeShape* is replaced with *TopTools_DataMapOfShapeShape*;
+ - *BOPCol_DataMapOfTransientAddress* is removed as unused;
+ - *BOPCol_IndexedDataMapOfIntegerListOfInteger* is removed as unused;
+ - *BOPCol_IndexedDataMapOfShapeBox* is removed as unused;
+ - *BOPCol_IndexedDataMapOfShapeInteger* is removed as unused;
+ - *BOPCol_IndexedDataMapOfShapeListOfShape* is replaced with *TopTools_IndexedDataMapOfShapeListOfShape*;
+ - *BOPCol_IndexedDataMapOfShapeReal* is removed as unused;
+ - *BOPCol_IndexedDataMapOfShapeShape* is replaced with *TopTools_IndexedDataMapOfShapeShape*;
+ - *BOPCol_IndexedMapOfInteger* is replaced with *TColStd_IndexedMapOfInteger*;
+ - *BOPCol_IndexedMapOfOrientedShape* is replaced with *TopTools_IndexedMapOfOrientedShape*;
+ - *BOPCol_IndexedMapOfShape* is replaced with *TopTools_IndexedMapOfShape*;
+ - *BOPCol_ListOfInteger* is replaced with *TColStd_ListOfInteger*;
+ - *BOPCol_ListOfListOfShape* is replaced with *TopTools_ListOfListOfShape*;
+ - *BOPCol_ListOfShape* is replaced with *TopTools_ListOfShape*;
+ - *BOPCol_MapOfInteger* is replaced with *TColStd_MapOfInteger*;
+ - *BOPCol_MapOfOrientedShape* is replaced with *TopTools_MapOfOrientedShape*;
+ - *BOPCol_MapOfShape* is replaced with *TopTools_MapOfShape*;
+ - *BOPCol_PListOfInteger* is removed as unused;
+ - *BOPCol_PInteger* is removed as unused
+ - *BOPCol_SequenceOfPnt2d* is replaced with *TColgp_SequenceOfPnt2d*;
+ - *BOPCol_SequenceOfReal* is replaced with *TColStd_SequenceOfReal*;
+ - *BOPCol_SequenceOfShape* is replaced with *TopTools_SequenceOfShape*;
+ - *BOPCol_Parallel* is replaced with *BOPTools_Parallel*;
+ - *BOPCol_NCVector* is replaced with *NCollection_Vector*;
+* The class *BOPDS_PassKey* and containers for it have been removed as unused.
+* The unused containers from *IntTools* package have been removed:
+ - *IntTools_DataMapOfShapeAddress* is removed as unused;
+ - *IntTools_IndexedDataMapOfTransientAddress* is removed as unused;
+* The container *BiTgte_DataMapOfShapeBox* is replaced with *TopTools_DataMapOfShapeBox*;
+* The class *BOPTools* has been removed as duplicate of the class *TopExp*;
+* The method *BOPAlgo_Builder::Splits()* has been removed as excessive. The method *BOPAlgo_Builder::Images()* can be used instead.
+* The method *BOPTools_AlgoTools::CheckSameGeom()* has been removed as excessive. The method *BOPTools_AlgoTools::AreFacesSameDomain()* can be used instead.
+
+@section upgrade_occt730 Upgrade to OCCT 7.3.0
+
+@subsection upgrade_730_lights Light sources
+
+Multiple changes have been applied to lights management within *TKV3d* and *TKOpenGl*:
+* *V3d_Light* class is now an alias to *Graphic3d_CLight*.
+ *Graphic3d_CLight* is now a Handle class with refactored methods for managing light source parameters.
+ Most methods of *V3d_Light* sub-classes have been preserved to simplify porting.
+* Obsolete debugging functionality for drawing a light source has been removed from *V3d_Light*.
+ Methods and constructors that take parameters for debug display and do not affect the light definition itself have also been removed.
+* Light constructors taking *V3d_Viewer* have been marked as deprecated.
+ Use method *AddLight()* of the class *V3d_Viewer* or *V3d_View* to add new light sources to a scene or a single view, respectively.
+* The upper limit of 8 light sources has been removed.
+* The classes for specific light source types: *V3d_AmbientLight, V3d_DirectionalLight, V3d_PositionalLight* and *V3d_SpotLight* have been preserved, but it is now possible to define the light of any type by creating base class *Graphic3d_CLight* directly. The specific classes only hide unrelated light properties depending on the type of light source.
+* It is no more required to call *V3d_Viewer::UpdateLights()* after modifying the properties of light sources (color, position, etc.)
+
+@subsection upgrade_730_shadingmodels Shading Models
+
+*Graphic3d_AspectFillArea3d* has been extended by a new property *ShadingModel()*, which previously has been defined globally for the entire View.
+
+Previously, a triangle array without normal vertex attributes was implicitly considered as unshaded,
+but now such array will be shaded using *Graphic3d_TOSM_FACET* model (e.g. by computing per-triangle normals).
+Therefore, *Graphic3d_TOSM_UNLIT* should be explicitly specified to disable shading of triangles array.
+Alternatively, a material without reflectance properties can be used to disable shading (as before).
+
+@subsection upgrade_730_tkopengl Custom low-level OpenGL elements
+
+The following API changes should be considered while porting custom *OpenGl_Element* objects:
+* *OpenGl_ShaderManager::BindFaceProgram()*, *BindLineProgram()*, *BindMarkerProgram()* now take enumeration arguments instead of Boolean flags.
+
+@subsection upgrade_730_BOPAlgo_Section Changes in BOPAlgo_Section
+
+The public method *BuildSection()* in the class *BOPAlgo_Section* has become protected. The methods *Perform()* or *PerformWithFiller()* should be called for construction of the result of SECTION operation.
+
+@subsection upgrade_730_BRepAdaptor_CompCurve Changes in BRepAdaptor_CompCurve
+
+The method *BRepAdaptor_CompCurve::SetPeriodic* has been eliminated.
+Since the new version, the method *BRepAdaptor_CompCurve::IsPeriodic()* will always return FALSE. Earlier, it could return TRUE in case if the wire contained only one edge based on a periodic curve.
+
+@subsection upgrade_730_removed Removed features
+* The methods *SetDeflection*, *SetEpsilonT*, *SetDiscretize* of the class *IntTools_EdgeFace* have been removed as redundant.
+* Deprecated functionality *V3d_View::Export()*, related enumerations Graphic3d_ExportFormat, Graphic3d_SortType
+ as well as optional dependency from gl2ps library have been removed.
+
+@subsection upgrade_730_BuilderSolid Boolean Operations - Solid Builder algorithm
+
+Previously, the unclassified faces of *BOPAlgo_BuilderSolid* algorithm (i.e. the faces not used for solids creation and located outside of all created solids) were used to form an additional (not closed) solid with INTERNAL orientation.
+Since the new version, these unclassified faces are no longer added into the resulting solids. Instead, the @ref occt_algorithms_ers "warning" with a list of these faces appears.
+
+The following public methods of the *BOPAlgo_BuilderSolid* class have been removed as redundant:
+* *void SetSolid(const TopoDS_Solid& theSolid);*
+* *const TopoDS_Solid& Solid() const;*
+
+@subsection upgrade_730_BRepAlgoBO Boolean Operation classes in BRepAlgo are deprecated
+
+The API classes in the package BRepAlgo providing access to old Boolean operations are marked as deprecated:
+* BRepAlgo_Fuse
+* BRepAlgo_Common
+* BRepAlgo_Cut
+* BRepAlgo_Section
+Corresponding classes from the package BRepAlgoAPI should be used instead.
+
+@subsection upgrade_730_replace_CDM_MessageDriver_interface_by_Message_Messenger Unification of the Error/Warning reporting system of Application Framework
+
+Class *CDM_MessageDriver* and its descendants have been removed; class *Message_Messenger* is used instead in all OCAF packages.
+By default, messenger returned by *Message::DefaultMessenger()* is used, thus all messages generated by OCAF are directed in the common message queue of OCCT.
+
+In classes implementing OCAF persistence for custom attributes (those inheriting from *BinMDF_ADriver*, *XmlMDF_ADriver*), uses of method *WriteMessage()* should be replaced by call to method *Send()* of the inherited field *myMessageDriver*. Note that this method takes additional argument indicating the gravity of the message (Trace, Info, Warning, Alarm, or Fail).
+
+Class *Message_PrinterOStream* can be used instead of *CDM_COutMessageDriver* to direct all messages to a stream.
+If custom driver class is used in the application, that class shall be reimplemented inheriting from *Message_Printer* instead of *CDM_MessageDriver*.
+Method *Send()* should be redefined instead of method *Write()* of *CDM_MessageDriver*.
+To use the custom printer in OCAF, it can be either added to default messenger or set into the custom *Message_Messenger* object created in the method *MessageDriver()* of a class inheriting *CDF_Application*.
+
+@section upgrade_occt740 Upgrade to OCCT 7.4.0
+
+@subsection upgrade_740_BRepPrimAPI_MakeRevol Changes in BRepPrimAPI_MakeRevol algorithm
+Previously the algorithm could create a shape with the same degenerated edge shared between some faces. Now it is prevented. The algorithm creates the different copy of this edge for each face. The method *Generated(...)* has been changed in order to apply restriction to the input shape: input shape can be only of type VERTEX, EDGE, FACE or SOLID. For input shape of another type the method always returns empty list.
+
+@subsection upgrade_740_removed Removed features
+* The following methods of the class *BRepAlgoAPI_BooleanOperation* have been removed as obsolete or replaced:
+ - *BuilderCanWork* can be replaced with *IsDone* or *HasErrors* method.
+ - *FuseEdges* removed as obsolete.
+ - *RefineEdges* replaced with new method *SimplifyResult*.
+* The method *ImagesResult* of the class *BOPAlgo_BuilderShape* has been removed as unused. The functionality of this method can be completely replaced by the history methods *Modified* and *IsDeleted*.
+* The method *TrackHistory* of the classes *BOPAlgo_RemoveFeatures* and *BRepAlgoAPI_Defeaturing* has been renamed to *SetToFillHistory*.
+* The method *GetHistory* of the class *BRepAlgoAPI_Defeaturing* has been renamed to *History*.
+* The classes *BRepAlgo_BooleanOperations* and *BRepAlgo_DSAccess* have been removed as obsolete. Please use the BRepAlgoAPI_* classes to perform Boolean operations.
+* *BRepAlgo_DataMapOfShapeBoolean* has been removed as unused.
+* *BRepAlgo_DataMapOfShapeInterference* has been removed as unused.
+* *BRepAlgo_EdgeConnector* has been removed as unused.
+* *BRepAlgo_SequenceOfSequenceOfInteger* has been removed as unused.
+
+@subsection upgrade_740_localcontext Local Context removal
+
+Previously deprecated Local Context functionality has been removed from AIS package,
+so that related methods have been removed from AIS_InteractiveContext interface:
+*HasOpenedContext()*, *HighestIndex()*, *LocalContext()*, *LocalSelector()*, *OpenLocalContext()*, *CloseLocalContext()*,
+*IndexOfCurrentLocal()*, *CloseAllContexts()*, *ResetOriginalState()*, *ClearLocalContext()*, *UseDisplayedObjects()*, *NotUseDisplayedObjects()*,
+*SetShapeDecomposition()*, *SetTemporaryAttributes()*, *ActivateStandardMode()*, *DeactivateStandardMode()*, *KeepTemporary()*,
+*SubIntensityOn()*, *SubIntensityOff()*, *ActivatedStandardModes()*, *IsInLocal()*, *AddOrRemoveSelected()* taking TopoDS_Shape.
+
+A set of deprecated methods previously related to Local Context and now redirecting to other methods has been preserved to simplify porting; they will be removed in next release.
+
+@subsection upgrade_740_geomconvert Changes in behavior of Convert algorithms
+
+Now methods *GeomConvert::ConcatG1*, *GeomConvert::ConcatC1*, *Geom2dConvert::ConcatG1*, *Geom2dConvert::ConcatC1* modify the input argument representing the flag of closedness.
+
+@subsection upgrade_740_selection Changes in selection API and picked point calculation algorithm.
+
+*SelectBasics_PickResult* structure has been extended, so that it now defines a 3D point on the detected entity in addition to Depth value along picking ray.
+*SelectMgr_SelectingVolumeManager::Overlap()* methods have been corrected to fill in *SelectBasics_PickResult* structure (depth and 3D point) instead of only depth value, so that custom *Select3D_SensitiveEntity* implementation should be updated accordingly (including *Select3D_SensitiveSet* subclasses).
+
+@subsection upgrade_740_ocafpersistence Document format version management improvement.
+
+Previously Document format version restored by *DocumentRetrievalDriver* was propagated using static methods of the corresponding units (like *MDataStd* or *MNaming*) to static variables of these units and after that became accessible to Drivers of these units.
+Now Document format version is available to drivers via *RelocationTable*. The Relocation table now keeps *HeaderData* of the document and a format version can be extracted in the following way: *theRelocTable.GetHeaderData()->StorageVersion()*.
+Obsolete methods: *static void SetDocumentVersion (const Standard_Integer DocVersion)* and *static Standard_Integer DocumentVersion()* have been removed from *BinMDataStd*, *BinMNaming*, *XmlMDataStd* and *XmlMNaming*.
+
+@subsection upgrade_740_changed_api_of_brepmesh BRepMesh - revision of the data model
+
+The entire structure of *BRepMesh* component has been revised and separated into several logically connected classes.
+
+In new version, deflection is controlled more accurately, this may be necessary to tune parameters of call of the BRepMesh algorithm on the application side to obtain the same quality of presentation and/or performance as before.
+
+*BRepMesh_FastDiscret* and *BRepMesh_FastDiscretFace* classes have been removed.
+
+The following changes have been introduced in the API of *BRepMesh_IncrementalMesh*, component entry point:
+* Due to revised logic, *adaptiveMin* parameter of the constructor has been removed as meaningless;
+* *BRepMesh_FastDiscret::Parameters* has been moved to a separate structure called *IMeshTools_Parameters*; the signatures of related methods have been changed correspondingly.
+
+* Interface of *BRepMesh_Delaun* class has been changed.
+
+Example of usage:
+Case 1 (explicit parameters):
+~~~~
+#include <IMeshData_Status.hxx>
+#include <IMeshTools_Parameters.hxx>
+#include <BRepMesh_IncrementalMesh.hxx>
+
+Standard_Boolean meshing_explicit_parameters()
+{
+ BRepMesh_IncrementalMesh aMesher (aShape, 0.1, Standard_False, 0.5, Standard_True);
+ const Standard_Integer aStatus = aMesher.GetStatusFlags();
+ return !aStatus;
+}
+
+Standard_Boolean meshing_new()
+{
+ IMeshTools_Parameters aMeshParams;
+ aMeshParams.Deflection = 0.1;
+ aMeshParams.Angle = 0.5;
+ aMeshParams.Relative = Standard_False;
+ aMeshParams.InParallel = Standard_True;
+ aMeshParams.MinSize = Precision::Confusion();
+ aMeshParams.InternalVerticesMode = Standard_True;
+ aMeshParams.ControlSurfaceDeflection = Standard_True;
+
+ BRepMesh_IncrementalMesh aMesher (aShape, aMeshParams);
+ const Standard_Integer aStatus = aMesher.GetStatusFlags();
+ return !aStatus;
+}
+~~~~
+
+@subsection upgrade_740_chamfer Changes in API of Chamfer algorithms
+
+Some public methods of the class BRepFilletAPI_MakeChamfer are released from excess arguments:
+- method Add for symmetric chamfer now takes only 2 arguments: distance and edge;
+- method GetDistAngle now takes only 3 arguments: index of contour, distance and angle.
+
+@subsection upgrade_740_aspects Aspects unification
+
+Fill Area, Line and Marker aspects (classes *Graphic3d_AspectFillArea3d*, *Graphic3d_AspectLine3d*, *Graphic3d_AspectMarker3d* and *Graphic3d_AspectText3d*)
+have been merged into new class *Graphic3d_Aspects* providing a single state for rendering primitives of any type.
+The old per-primitive type aspect classes have been preserved as sub-classes of *Graphic3d_Aspects* with default values close to the previous behavior.
+All aspects except Graphic3d_AspectFillArea3d define Graphic3d_TOSM_UNLIT shading model.
+
+The previous approach with dedicated aspects per primitive type was handy in simplified case, but lead to confusion otherwise.
+In fact, drawing points or lines with lighting applied is a valid use case, but only *Graphic3d_AspectFillArea3d* previously defined necessary material properties.
+
+As aspects for different primitive types have been merged, Graphic3d_Group does no more provide per-type aspect properties.
+Existing code relying on old behavior and putting interleaved per-type aspects into single Graphic3d_Group should be updated.
+For example, the following pseudo-code will not work anymore, because all *SetGroupPrimitivesAspect* calls will setup the same property:
+~~~~
+Handle(Graphic3d_Group) aGroup = thePrs->NewGroup();
+aGroup->SetGroupPrimitivesAspect (myDrawer->ShadingAspect()->Aspect());
+aGroup->SetGroupPrimitivesAspect (myDrawer->LineAspect()->Aspect()); //!< overrides previous aspect
+
+Handle(Graphic3d_ArrayOfSegments) aLines = new Graphic3d_ArrayOfSegments (2);
+Handle(Graphic3d_ArrayOfTriangles) aTris = new Graphic3d_ArrayOfTriangles (3);
+aGroup->AddPrimitiveArray (aLines); //!< both arrays will use the same aspect
+aGroup->AddPrimitiveArray (aTris);
+~~~~
+
+To solve the problem, the code should be modified to either put primitives into dedicated groups (preferred approach), or using *SetPrimitivesAspect* in proper order:
+~~~~
+Handle(Graphic3d_Group) aGroup = thePrs->NewGroup();
+
+aGroup->SetGroupPrimitivesAspect (myDrawer->ShadingAspect()->Aspect());
+Handle(Graphic3d_ArrayOfTriangles) aTris = new Graphic3d_ArrayOfTriangles (3);
+aGroup->AddPrimitiveArray (aTris);
+
+Handle(Graphic3d_ArrayOfSegments) aLines = new Graphic3d_ArrayOfSegments (2);
+aGroup->SetPrimitivesAspect (myDrawer->LineAspect()->Aspect()); //!< next array will use the new aspect
+aGroup->AddPrimitiveArray (aLines);
+~~~~
+
+@subsection upgrade_740_materials Material definition
+
+Decomposition of Ambient, Diffuse, Specular and Emissive properties has been eliminated within *Graphic3d_MaterialAspect* definition.
+As result, the following methods of *Graphic3d_MaterialAspect* class have been removed: SetReflectionMode(), SetReflectionModeOn(), Ambient(), Diffuse(), Emissive(), Specular(), SetAmbient(), SetDiffuse(), SetSpecular(), SetEmissive().
+
+Previously, computation of final value required the following code:
+~~~~
+Graphic3d_MaterialAspect theMaterial; Quantity_Color theInteriorColor;
+Graphic3d_Vec3 anAmbient (0.0f);
+if (theMaterial.ReflectionMode (Graphic3d_TOR_AMBIENT))
+{
+ anAmbient = theMaterial.MaterialType (Graphic3d_MATERIAL_ASPECT)
+ ? (Graphic3d_Vec3 )theInteriorColor * theMaterial.Ambient()
+ : (Graphic3d_Vec3 )theMaterial.AmbientColor() * theMaterial.Ambient();
+}
+~~~~
+
+New code looks like this:
+~~~~
+Graphic3d_MaterialAspect theMaterial; Quantity_Color theInteriorColor;
+Graphic3d_Vec3 anAmbient = theMaterial.AmbientColor();
+if (theMaterial.MaterialType (Graphic3d_MATERIAL_ASPECT)) { anAmbient *= (Graphic3d_Vec3 )theInteriorColor; }
+~~~~
+
+Existing code should be updated to:
+- Replace Graphic3d_MaterialAspect::SetReflectionModeOff() with setting black color; SetReflectionModeOn() calls can be simply removed.
+ R.g. theMaterial.SetAmbientColor(Quantity_NOC_BLACK).
+- Replace Graphic3d_MaterialAspect::Ambient(), SetAmbient(), Diffuse(), SetDiffuse(), Specular(), SetSpecular(), Emissive(), SetEmissive() with methods working with pre-multiplied color.
+ E.g. theMaterial.SetAmbientColor(Graphic3d_Vec3 (1.0f, 0.0f, 0.0f) * 0.2f).
+- Avoid using Graphic3d_MaterialAspect::Color() and SetColor() with non-physical materials (Graphic3d_MATERIAL_ASPECT).
+ These materials do not include color definition, because it is taken from Graphic3d_Aspects::InteriorColor() - this has not been changed.
+ However, previously it was possible storing the color with SetColor() call and then fetching it with Color() by application code (the rendering ignored this value);
+ now SetColor() explicitly ignores call for Graphic3d_MATERIAL_ASPECT materials and Color() returns DiffuseColor() multiplication coefficients.
+
+@subsection upgrade_740_text Changes in Graphic3d_Text and OpenGl_Text API
+
+Parameters of *Text* in *Graphic3d_Group* are moved into a new *Graphic3d_Text* class. *AddText* of *Graphic3d_Group* should be used instead of the previous *Text*.
+
+The previous code:
+~~~~
+Standard_Real x, y, z;
+theAttachmentPoint.Coord(x,y,z);
+theGroup->Text (theText,
+ Graphic3d_Vertex(x,y,z),
+ theAspect->Height(),
+ theAspect->Angle(),
+ theAspect->Orientation(),
+ theAspect->HorizontalJustification(),
+ theAspect->VerticalJustification());
+~~~~
+should be replaced by the new code:
+~~~~
+Handle(Graphic3d_Text) aText = new Graphic3d_Text (theAspect->Height());
+aText->SetText (theText.ToExtString());
+aText->SetPosition (theAttachmentPoint);
+aText->SetHorizontalAlignment (theAspect->HorizontalJustification());
+aText->SetVerticalAlignment (theAspect->VerticalJustification());
+theGroup->AddText (aText);
+~~~~
+
+*OpenGl_Text* contains *Graphic3d_Text* field.
+
+*OpenGl_TextParam* struct is removed. Constructor and *Init* of *OpenGl_Text* with *OpenGl_TextParam* are also removed.
+Instead of using them, change *OpenGl_Text*.
+
+Please, note, that after modifying *OpenGl_Text*, *Reset* of *OpenGl_Text* should be called.
+
+*FormatParams* of *OpenGl_Text* is replaced by *Text*.
+
+@subsection upgrade_740_prsupdate Presentation invalidation
+
+Historically AIS_InteractiveObject provided two independent mechanisms invalidating presentation (asking presentation manager to recompute specific display mode or all modes):
+
+1. *AIS_InteractiveObject::SetToUpdate()*, marking existing presentation for update.
+ This is main invalidation API, which is expected to be followed by *AIS_InteractiveContext::Update()* call.
+2. *AIS_InteractiveObject::myToRecomputeModes* + *myRecomputeEveryPrs*.
+ This is auxiliary invalidation API, used internally by AIS_InteractiveContext::SetColor()/UnsetColor() and similar modification methods.
+
+The latter one has been removed to avoid confusion and unexpected behavior.
+In addition, two methods *AIS_InteractiveObject::Update()* have been deprecated in favor of new *AIS_InteractiveObject::UpdatePresentations()* recomputing only invalidated presentations.
+
+Custom presentations implementing interface methods *AIS_InteractiveObject::SetColor()* and others should be revised to use *AIS_InteractiveObject::SetToUpdate()*
+or updating presentation without recomputation (see *AIS_InteractiveObject::SynchronizeAspects()* and *AIS_InteractiveObject::replaceAspects()*).
+
+@subsection upgrade_740_interiorstyles Interior styles
+
+* *Aspect_IS_HOLLOW* is now an alias to *Aspect_IS_EMPTY* and does not implicitly enables drawing mesh edges anymore.
+ Specify Graphic3d_AspectFillArea3d::SetDrawEdges(true) with Graphic3d_AspectFillArea3d::SetInteriorStyle(Aspect_IS_EMPTY) to get previous behavior of Aspect_IS_HOLLOW style.
+* *Aspect_IS_HIDDENLINE* does not implicitly enables drawing mesh edges anymore.
+ Specify Graphic3d_AspectFillArea3d::SetDrawEdges(true) with Graphic3d_AspectFillArea3d::SetInteriorStyle(Aspect_IS_HIDDENLINE) to get previous behavior of Aspect_IS_HIDDENLINE style.
+
+@subsection upgrade_740_modedprs PrsMgr and SelectMgr hierarchy clean up
+
+Proxy classes *Prs3d_Presentation*, *PrsMgr_ModedPresentation* and *PrsMgr_Prs* have been removed.
+Code iterating through the list of low-level structures AIS_InteractiveObject::Presentations() should be updated to access PrsMgr_Presentation directly.
+Forward declarations of *Prs3d_Presentation* should be corrected, since it is now a typedef to *Graphic3d_Structure*.
+
+Proxy classes *SelectBasics_SensitiveEntity* and *SelectBasics_EntityOwner* have been removed - *Select3D_SensitiveEntity* and *SelectMgr_EntityOwner* should be now used directly instead.
+
+@subsection upgrade_740_offset Polygon offset defaults
+
+*Graphic3d_PolygonOffset* default constructor has been corrected to define Units=1 instead of Units=0.
+Default polygon offset settings Mode=Aspect_POM_Fill + Factor=1 + Units=1 are intended to push triangulation
+(Shaded presentation) a little bit behind of lines (Wireframe and Face Edges)
+for reducing z-fighting effect of Shaded+Wireframe combination.
+The change in defaults (Units changed from 0 to 1) is intended to cover scenario when camera direction is perpendicular to model plane (like 2D view).
+
+Application observing unexpected visual difference on this change should consider customizing this property within AIS_InteractiveContext default attributes
+or on per-presentation basis via *Graphic3d_Aspects::SetPolygonOffset()* methods.
+
+@subsection upgrade_740_zlayer Adding ZLayers in given position
+
+Interface of insertion ZLayer in the viewer has been improved with ability to insert new layer before or after existing one.
+Previously undocumented behavior of *V3d_Viewer::AddZlayer()* method has been corrected to insert new layer before *Graphic3d_ZLayerId_Top*.
+Applications might need revising their custom layers creation code and specify precisely their order with new methods *V3d_Viewer::InsertLayerBefore()* and *V3d_Viewer::InsertLayerAfter()*.
+
+@subsection upgrade_740_enum_changed Modified enumerations
+
+Applications using integer values of the following enumerations in persistence
+should be corrected as these enumerations have been modified:
+
+| Name |
+| :----- |
+| AIS_TypeOfAttribute |
+| Aspect_InteriorStyle |
+| Font_FontAspect |
+
+@subsection upgrade_740_geproj Custom defines within env.bat
+
+*env.bat* produced by Visual Studio project generator *genproj.bat* has been modified so that *%CSF_DEFINES%* variable is reset to initial state.
+Custom building environment relying on old behavior and setting extra macros within *%CSF_DEFINES%* before env.bat should be updated
+to either modify custom.bat or setup new variable *%CSF_DEFINES_EXTRA%* instead.
+
+@subsection upgrade_740_BVH_in_BOP Switching Boolean Operations algorithm to use BVH tree instead of UB tree
+
+Since OCCT 7.4.0 Boolean Operations algorithm uses BVH tree instead of UBTree to find the pairs of entities with interfering bounding boxes.
+The following API changes have been made:
+* BOPTools_BoxBndTree and BOPTools_BoxBndTreeSelector have been removed. Use the BOPTools_BoxTree and BOPTools_BoxTreeSelector instead.
+* BOPTools_BoxSelector::SetBox() method now accepts the BVH_Box instead of Bnd_Box.
+* Methods BOPTools_BoxSelector::Reject and BOPTools_BoxSelector::Accept have been removed as unused.
+* The RunParallel flag has been removed from the list of parameters of BOPAlgo_Tools::IntersectVertices method. Earlier, it performed selection from the UB tree in parallel mode. Now all interfering pairs are found in one pass, using pair traverse of the same BVH tree.
+
+@subsection upgrade_740_stdnamespace Standard_Stream.hxx no more has "using std::" statements
+*Standard_Stream.hxx* header, commonly included by other OCCT header files, does no more add entities from *std namespace* related to streams (like *std::cout*, *std::istream* and others) into global namespace.
+The application code relying on this matter should be updated to either specify std namespace explicitly (like std::cout) or add "using std::" statements locally.
+
+@section upgrade_occt750 Upgrade to OCCT 7.5.0
+
+@subsection upgrade_750_srgb_color RGB color definition
+
+OCCT 3D Viewer has been improved to properly perform lighting using in linear RGB color space and then convert result into non-linear gamma-shifted sRGB color space before displaying on display.
+This change affects texture mapping, material definition and color definition.
+
+Previously *Quantity_Color* definition was provided with unspecified RGB color space.
+In practice, mixed color spaces have been actually used, with non-linear sRGB prevailing in general.
+Since OCCT 7.5.0, *Quantity_Color* now specifies that components are defined in linear RGB color space.
+
+This change affects following parts:
+* Standard colors defined by *Quantity_NameOfColor* enumeration have been converted into linear RGB values within Quantity_Color construction.
+* Application may use new enumeration value *Quantity_TOC_sRGB* for passing/fetching colors in sRGB color space,
+ which can be useful for interoperation with color picking widgets (returning 8-bit integer values within [0..255] range)
+ or for porting colors constants within old application code without manual conversion.
+* *Graphic3d_MaterialAspect* color components are now expected in linear RGB color space,
+ and standard OCCT materials within *Graphic3d_NameOfMaterial* enumeration have been updated accordingly.
+* Texture mapping now handles new *Graphic3d_TextureRoot::IsColorMap()* for interpreting content in linear RGB or sRGB color space.
+ It is responsibility of user specifying this flag correctly. The flag value is TRUE by default.
+* Method *Image_PixMap::PixelColor()* has been extended with a new Boolean flag for performing linearization of non-linear sRGB.
+ This flag is FALSE by default; application should consider passing TRUE instead for further handling *Quantity_Color* properly as linear RGB values.
+
+@subsection upgrade_750_aspectwindow Aspect_Window interface change
+
+Unexpected const-ness of Aspect_Window::DoResize() method has been removed, so that application classes implementing this interface should be updated accordingly.
+
+@subsection upgrade_750_rename Renaming of types
+
+Enumeration BRepOffset_Type is renamed to ChFiDS_TypeOfConcavity.
+
+@subsection upgrade_750_hlrangle Prs3d_Drawer deviation angle
+
+Properties Prs3d_Drawer::HLRAngle() and Prs3d_Drawer::HLRDeviationCoefficient() have been removed from classes *Prs3d_Drawer*, *AIS_Shape* and *AIS_InteractiveContext*.
+Prs3d_Drawer::DeviationAngle() should be now used instead of Prs3d_Drawer::HLRAngle() and Prs3d_Drawer::DeviationCoefficient() instead of Prs3d_Drawer::HLRDeviationCoefficient().
+The default value of Prs3d_Drawer::DeviationAngle() property has been changed from 12 to 20 degrees to match removed Prs3d_Drawer::HLRAngle(), previously used as input for triangulation algorithm.
+
+@subsection upgrade_750_hlrprs Changes in HLR presentation API
+
+Methods computing HLR presentation within *PrsMgr_PresentableObject::Compute()* have been renamed to *PrsMgr_PresentableObject::computeHLR()*
+and now accept *Graphic3d_Camera* object instead of removed *Prs3d_Projector*.
+
+@subsection upgrade_750_dimensions Dimension and Relation presentations moved from AIS to PrsDim
+
+Presentation classes displaying Dimensions and Relations have been moved from *AIS* package to *PrsDim*.
+Corresponding classes should be renamed in application code (like *AIS_LengthDimension* -> *PrsDim_LengthDimension*).
+
+@subsection upgrade_750_sensitiveEntity Select3D_SensitiveEntity interface change
+
+The method Select3D_SensitiveEntity::NbSubElements() has been changed to be constant. Select3D_SensitiveEntity subclasses at application level should be updated accordingly.
+
+
+@subsection upgrade_750_Booleans Changes in Boolean operations algorithm
+
+* TreatCompound method has been moved from *BOPAlgo_Tools* to *BOPTools_AlgoTools*. Additionally, the map parameter became optional:
+~~~~
+void BOPTools_AlgoTools::TreatCompound (const TopoDS_Shape& theS,
+ TopTools_ListOfShape& theLS,
+ TopTools_MapOfShape* theMap = NULL);
+~~~~
+
+@subsection upgrade_750_Adaptor2d_OffsetCurve Offset direction change
+
+Offset direction, which used in class Adaptor2d_OffsetCurve for evaluating values and derivatives of offset curve is unified for offset direction used in class Geom2d_OffsetCurve: now offset direction points to outer ("right") side of base curve instead of the previously used inner ("left") side. Old usage of class in any application should be changed something like that:
+
+Adaptor2d_OffsetCurve aOC(BaseCurve, Offset) --> Adaptor2d_OffsetCurve aOC(BaseCurve, -Offset)
projects / occt.git / blobdiff