GeomAbs,
GeomAdaptor,
TopLoc,
- SortTools
+ SortTools,
+ Plugin
is enumeration DegreeOfFreedom is
imported VertexCellFilter from BRepMesh;
imported VectorOfVertex from BRepMesh;
+ primitive PluginEntryType;
+
class ComparatorOfVertexOfDelaun;
class ComparatorOfIndexedVertexOfDelaun;
class SelectorOfDataStructureOfDelaun;
--- File: BRepMesh_DiscretFactory.cdl
--- Created: Thu Apr 10 12:34:15 2008
--- Author: Peter KURNEV
--- <pkv@irinox>
----Copyright: Matra Datavision 2008
+-- File: BRepMesh_DiscretFactory.cdl
+-- Created: Thu Apr 10 12:34:15 2008
+-- Author: Peter KURNEV <pkv@irinox>
+--
+---Copyright: Matra Datavision 2008
+class DiscretFactory from BRepMesh
-class DiscretFactory from BRepMesh
-
- ---Purpose:
+ ---Purpose:
+ -- This class intended to setup / retrieve default triangulation algorithm.
+ -- Use BRepMesh_DiscretFactory::Get() static method to retrieve global Factory instance.
+ -- Use BRepMesh_DiscretFactory::Discret() method to retrieve meshing tool.
uses
- AsciiString from TCollection,
- PDiscretRoot from BRepMesh,
- MapOfAsciiString from TColStd,
- FactoryError from BRepMesh,
- Shape from TopoDS
---raises
+ DiscretRoot from BRepMesh,
+ FactoryError from BRepMesh,
+ PluginEntryType from BRepMesh,
+ AsciiString from TCollection,
+ MapOfAsciiString from TColStd,
+ Shape from TopoDS,
+ MapOfFunctions from Plugin
+--raises
-is
+is
Create
- returns DiscretFactory from BRepMesh
- is protected;
- ---C++: alias "Standard_EXPORT virtual ~BRepMesh_DiscretFactory();"
-
- Get(myclass)
- returns DiscretFactory from BRepMesh;
- ---C++: return &
-
- Names(me)
- returns MapOfAsciiString from TColStd;
- ---C++: return const &
-
- SetDefaultName(me:out;
- theName:AsciiString from TCollection);
-
- DefaultName(me)
- returns AsciiString from TCollection;
- ---C++: return const &
-
- SetFunctionName(me:out;
- theName:AsciiString from TCollection);
-
- FunctionName(me)
- returns AsciiString from TCollection;
- ---C++: return const &
-
- Discret(me:out;
- theShape:Shape from TopoDS;
- theDeflection : Real from Standard;
- theAngle : Real from Standard)
- returns PDiscretRoot from BRepMesh;
- ---C++: return &
-
- ErrorStatus(me)
- returns FactoryError from BRepMesh;
-
- Clear(me:out)
- is protected;
-
-fields
- myPDiscret : PDiscretRoot from BRepMesh is protected;
- myErrorStatus : FactoryError from BRepMesh is protected;
- myNames : MapOfAsciiString from TColStd is protected;
- myFixedNames : AsciiString from TCollection[1] is protected;
- myDefaultName : AsciiString from TCollection is protected;
- myFunctionName: AsciiString from TCollection is protected;
-
-end DiscretFactory;
+ returns DiscretFactory from BRepMesh
+ is protected;
+ ---C++: alias "Standard_EXPORT virtual ~BRepMesh_DiscretFactory();"
+
+ Get (myclass)
+ returns DiscretFactory from BRepMesh;
+ ---C++: return &
+ ---Purpose:
+ -- Returns the global factory instance.
+
+ Names (me)
+ returns MapOfAsciiString from TColStd;
+ ---C++: return const &
+ ---Purpose:
+ -- Returns the list of registered meshing algorithms.
+
+ SetDefaultName ( me : out;
+ theName : AsciiString from TCollection)
+ returns Boolean from Standard;
+ ---Purpose:
+ -- Setup meshing algorithm by name.
+ -- Returns true if requested tool is available.
+ -- On fail Factory will continue to use previous algo.
+
+ DefaultName (me)
+ returns AsciiString from TCollection;
+ ---C++: return const &
+ ---Purpose:
+ -- Returns name for current meshing algorithm.
+ SetFunctionName ( me : out;
+ theFuncName : AsciiString from TCollection)
+ returns Boolean from Standard;
+ ---Purpose:
+ -- Advanced function. Changes function name to retrieve from plugin.
+ -- Returns true if requested tool is available.
+ -- On fail Factory will continue to use previous algo.
+
+ SetDefault ( me : out;
+ theName : AsciiString from TCollection;
+ theFuncName : AsciiString from TCollection = "DISCRETALGO")
+ returns Boolean from Standard;
+ ---Purpose:
+ -- Setup meshing algorithm that should be created by this Factory.
+ -- Returns true if requested tool is available.
+ -- On fail Factory will continue to use previous algo.
+ -- Call ::ErrorStatus() method to retrieve fault reason.
+
+ FunctionName (me)
+ returns AsciiString from TCollection;
+ ---C++: return const &
+ ---Purpose:
+ -- Returns function name that should be exported by plugin.
+
+ Discret (me : out;
+ theShape : Shape from TopoDS;
+ theDeflection : Real from Standard;
+ theAngle : Real from Standard)
+ returns DiscretRoot from BRepMesh;
+ ---Purpose:
+ -- Returns triangulation algorithm instance.
+
+ ErrorStatus (me)
+ returns FactoryError from BRepMesh;
+ ---Purpose:
+ -- Returns error status for last meshing algorithm switch.
+
+ Clear (me : out)
+ is protected;
+
+fields
+ myPluginEntry : PluginEntryType from BRepMesh is protected;
+ myErrorStatus : FactoryError from BRepMesh is protected;
+ myNames : MapOfAsciiString from TColStd is protected;
+ myDefaultName : AsciiString from TCollection is protected;
+ myFunctionName : AsciiString from TCollection is protected;
+ myFactoryMethods : MapOfFunctions from Plugin is protected;
+
+end DiscretFactory;
-// File: BRepMesh_DiscretFactory.cxx
-// Created: Thu Apr 10 13:32:00 2008
-// Author: Peter KURNEV
-// <pkv@irinox>
-
+// File: BRepMesh_DiscretFactory.cxx
+// Created: Thu Apr 10 13:32:00 2008
+// Author: Peter KURNEV <pkv@irinox>
#include <BRepMesh_DiscretFactory.ixx>
#include <OSD_SharedLibrary.hxx>
#include <OSD_Function.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
+#include <BRepMesh_PDiscretRoot.hxx>
-static
- void MakeLibName(const TCollection_AsciiString& ,
- TCollection_AsciiString& );
-static
- Standard_Integer CreateDiscret(const TopoDS_Shape& theShape,
- const Standard_Real ,
- const Standard_Real ,
- OSD_Function& ,
- BRepMesh_PDiscretRoot& );
+namespace
+{
+ //! Embedded triangulation tool(s)
+ static TCollection_AsciiString THE_FAST_DISCRET_MESH ("FastDiscret");
+
+ //! Generate system-dependent name for dynamic library
+ //! (add standard prefixes and postfixes)
+ static void MakeLibName (const TCollection_AsciiString& theDefaultName,
+ TCollection_AsciiString& theLibName)
+ {
+ theLibName = "";
+ #ifndef WNT
+ theLibName += "lib";
+ #endif
+ theLibName += theDefaultName;
+ #ifdef WNT
+ theLibName += ".dll";
+ #elif __APPLE__
+ theLibName += ".dylib";
+ #elif defined (HPUX) || defined(_hpux)
+ theLibName += ".sl";
+ #else
+ theLibName += ".so";
+ #endif
+ }
+};
//=======================================================================
//function : BRepMesh_DiscretFactory
-//purpose :
+//purpose :
//=======================================================================
BRepMesh_DiscretFactory::BRepMesh_DiscretFactory()
+: myPluginEntry (NULL),
+ myErrorStatus (BRepMesh_FE_NOERROR),
+ myDefaultName (THE_FAST_DISCRET_MESH),
+ myFunctionName ("DISCRETALGO")
{
- myFixedNames[0]="FastDiscret";
-
- //
- myNames.Add(myFixedNames[0]);
- myDefaultName=myFixedNames[0];
- myFunctionName="DISCRETALGO";
- myPDiscret=NULL;
+ // register built-in meshing algorithms
+ myNames.Add (THE_FAST_DISCRET_MESH);
}
+
//=======================================================================
//function : ~
-//purpose :
+//purpose :
//=======================================================================
BRepMesh_DiscretFactory::~BRepMesh_DiscretFactory()
{
Clear();
}
+
//=======================================================================
//function : ~
-//purpose :
+//purpose :
//=======================================================================
void BRepMesh_DiscretFactory::Clear()
{
- if (myPDiscret) {
- delete myPDiscret;
- myPDiscret=NULL;
- }
+ // what should we do here? Unload dynamic libraries and reset plugins list?
}
+
//=======================================================================
//function : Get
-//purpose :
+//purpose :
//=======================================================================
-BRepMesh_DiscretFactory& BRepMesh_DiscretFactory::Get()
+BRepMesh_DiscretFactory& BRepMesh_DiscretFactory::Get()
{
- static BRepMesh_DiscretFactory* sFactory;
- static Standard_Boolean isInit=Standard_False;
- if(!isInit) {
- isInit = Standard_True;
- sFactory = new BRepMesh_DiscretFactory;
- }
- return *sFactory;
+ //! global factory instance
+ static BRepMesh_DiscretFactory THE_GLOBAL_FACTORY;
+ return THE_GLOBAL_FACTORY;
}
+
//=======================================================================
//function : ErrorStatus
-//purpose :
+//purpose :
//=======================================================================
-BRepMesh_FactoryError BRepMesh_DiscretFactory::ErrorStatus()const
+BRepMesh_FactoryError BRepMesh_DiscretFactory::ErrorStatus() const
{
return myErrorStatus;
}
+
//=======================================================================
//function : Names
-//purpose :
+//purpose :
//=======================================================================
-const TColStd_MapOfAsciiString& BRepMesh_DiscretFactory::Names()const
+const TColStd_MapOfAsciiString& BRepMesh_DiscretFactory::Names() const
{
return myNames;
}
+
//=======================================================================
//function : SetDefaultName
-//purpose :
+//purpose :
//=======================================================================
-void BRepMesh_DiscretFactory::SetDefaultName(const TCollection_AsciiString& theName)
+Standard_Boolean BRepMesh_DiscretFactory::SetDefaultName (const TCollection_AsciiString& theName)
{
- myDefaultName=theName;
+ return SetDefault (theName, myFunctionName);
}
+
//=======================================================================
//function : DefaultName
-//purpose :
+//purpose :
//=======================================================================
-const TCollection_AsciiString& BRepMesh_DiscretFactory::DefaultName()const
+const TCollection_AsciiString& BRepMesh_DiscretFactory::DefaultName() const
{
return myDefaultName;
}
+
//=======================================================================
//function : SetFunctionName
-//purpose :
+//purpose :
//=======================================================================
-void BRepMesh_DiscretFactory::SetFunctionName(const TCollection_AsciiString& theName)
+Standard_Boolean BRepMesh_DiscretFactory::SetFunctionName (const TCollection_AsciiString& theFuncName)
{
- myFunctionName=theName;
+ return SetDefault (myDefaultName, theFuncName);
}
+
//=======================================================================
//function : FunctionName
-//purpose :
+//purpose :
//=======================================================================
-const TCollection_AsciiString& BRepMesh_DiscretFactory::FunctionName()const
+const TCollection_AsciiString& BRepMesh_DiscretFactory::FunctionName() const
{
return myFunctionName;
}
+
//=======================================================================
-//function : Discret
-//purpose :
+//function : SetDefault
+//purpose :
//=======================================================================
-BRepMesh_PDiscretRoot&
- BRepMesh_DiscretFactory::Discret(const TopoDS_Shape& theShape,
- const Standard_Real theDeflection,
- const Standard_Real theAngle)
+Standard_Boolean BRepMesh_DiscretFactory::SetDefault (const TCollection_AsciiString& theName,
+ const TCollection_AsciiString& theFuncName)
{
- myErrorStatus=BRepMesh_FE_NOERROR;
- Clear();
- // DEB f
- //myDefaultName="TKXMesh";
- // DEB t
- if(myDefaultName==myFixedNames[0]) {
- myPDiscret=new BRepMesh_IncrementalMesh;
- myPDiscret->SetDeflection(theDeflection);
- myPDiscret->SetAngle(theAngle);
- myPDiscret->SetShape(theShape);
+ myErrorStatus = BRepMesh_FE_NOERROR;
+ if (theName == THE_FAST_DISCRET_MESH)
+ {
+ // built-in, nothing to do
+ myPluginEntry = NULL;
+ myDefaultName = theName;
+ myFunctionName = theFuncName;
+ return Standard_True;
+ }
+ else if (theName == myDefaultName && theFuncName == myFunctionName)
+ {
+ // already active
+ return myPluginEntry != NULL;
}
- else {
- Standard_Integer iErr;
+
+ TCollection_AsciiString aMeshAlgoId = theName + "_" + theFuncName;
+ BRepMesh_PluginEntryType aFunc = NULL;
+ if (myFactoryMethods.IsBound (aMeshAlgoId))
+ {
+ // retrieve from cache
+ aFunc = (BRepMesh_PluginEntryType )myFactoryMethods (aMeshAlgoId);
+ }
+ else
+ {
TCollection_AsciiString aLibName;
- OSD_Function aF;
- //
- myPDiscret=NULL;
- //
- MakeLibName(myDefaultName, aLibName);
- //
- OSD_SharedLibrary aSL(aLibName.ToCString());
- if (!aSL.DlOpen(OSD_RTLD_LAZY)) {
- myErrorStatus=BRepMesh_FE_LIBRARYNOTFOUND; // library is not found
- return myPDiscret;
- }
- //
- aF = aSL.DlSymb(myFunctionName.ToCString());
- if(aF==NULL ) {
- myErrorStatus=BRepMesh_FE_FUNCTIONNOTFOUND; // function is not found
- return myPDiscret;
- }
- //
- iErr=CreateDiscret(theShape,
- theDeflection,
- theAngle,
- aF,
- myPDiscret);
- if (iErr) {
- myErrorStatus=BRepMesh_FE_CANNOTCREATEALGO; // can not create the algo specified
- }
- else {
- myNames.Add(myDefaultName);
+ MakeLibName (theName, aLibName);
+ OSD_SharedLibrary aSL (aLibName.ToCString());
+ if (!aSL.DlOpen (OSD_RTLD_LAZY))
+ {
+ // library is not found
+ myErrorStatus = BRepMesh_FE_LIBRARYNOTFOUND;
+ return Standard_False;
}
+
+ // retrieve the function from plugin
+ aFunc = (BRepMesh_PluginEntryType )aSL.DlSymb (theFuncName.ToCString());
+ myFactoryMethods.Bind (aMeshAlgoId, (OSD_Function )aFunc);
+ }
+
+ if (aFunc == NULL)
+ {
+ // function is not found - invalid plugin?
+ myErrorStatus = BRepMesh_FE_FUNCTIONNOTFOUND;
+ return Standard_False;
+ }
+
+ // try to create dummy tool
+ BRepMesh_PDiscretRoot anInstancePtr = NULL;
+ Standard_Integer anErr = aFunc (TopoDS_Shape(), 0.001, 0.1, anInstancePtr);
+ if (anErr != 0 || anInstancePtr == NULL)
+ {
+ // can not create the algo specified
+ myErrorStatus = BRepMesh_FE_CANNOTCREATEALGO;
+ delete anInstancePtr;
+ return Standard_False;
}
- //
- return myPDiscret;
+ delete anInstancePtr;
+
+ // if all checks done - switch to this tool
+ myPluginEntry = aFunc;
+ myDefaultName = theName;
+ myFunctionName = theFuncName;
+ myNames.Add (theName);
+ return Standard_True;
}
+
//=======================================================================
-//function : CreateDiscret
-//purpose :
+//function : Discret
+//purpose :
//=======================================================================
-Standard_Integer CreateDiscret(const TopoDS_Shape& theShape,
- const Standard_Real theDeflection,
- const Standard_Real theAngle,
- OSD_Function& theF,
- BRepMesh_PDiscretRoot& theAlgo)
+Handle(BRepMesh_DiscretRoot) BRepMesh_DiscretFactory
+ ::Discret (const TopoDS_Shape& theShape,
+ const Standard_Real theDeflection,
+ const Standard_Real theAngle)
{
- Standard_Integer iErr;
- Standard_Integer (*fp) (const TopoDS_Shape& ,
- const Standard_Real ,
- const Standard_Real ,
- BRepMesh_PDiscretRoot& );
- //
- fp=(Standard_Integer (*)(const TopoDS_Shape& ,
- const Standard_Real ,
- const Standard_Real ,
- BRepMesh_PDiscretRoot&)) theF;
- //
- iErr=(*fp)(theShape,
- theDeflection,
- theAngle,
- theAlgo);
- //
- return iErr;
-}
-//=======================================================================
-//function : MakeLibName
-//purpose :
-//=======================================================================
-void MakeLibName(const TCollection_AsciiString& theDefaultName,
- TCollection_AsciiString& theLibName)
-{
- theLibName="";
-#ifndef WNT
- theLibName+="lib";
-#endif
- theLibName+=theDefaultName;
-#ifdef WNT
- theLibName+=".dll";
-#elif __APPLE__
- theLibName+=".dylib";
-#elif defined (HPUX) || defined(_hpux)
- theLibName+=".sl";
-#else
- theLibName+=".so";
-#endif
+ Handle(BRepMesh_DiscretRoot) aDiscretRoot;
+ BRepMesh_PDiscretRoot anInstancePtr = NULL;
+ if (myPluginEntry != NULL)
+ {
+ // use plugin
+ Standard_Integer anErr = myPluginEntry (theShape, theDeflection, theAngle, anInstancePtr);
+ if (anErr != 0 || anInstancePtr == NULL)
+ {
+ // can not create the algo specified - should never happens here
+ myErrorStatus = BRepMesh_FE_CANNOTCREATEALGO;
+ return aDiscretRoot;
+ }
+ }
+ else //if (myDefaultName == THE_FAST_DISCRET_MESH)
+ {
+ // use built-in
+ BRepMesh_IncrementalMesh::Discret (theShape, theDeflection, theAngle, anInstancePtr);
+ }
+
+ // cover with handle
+ aDiscretRoot = anInstancePtr;
+
+ // return the handle
+ return aDiscretRoot;
}
--- File: BRepMesh_DiscretRoot.cdl
--- Created: Thu Apr 10 09:57:55 2008
--- Author: Peter KURNEV
--- <pkv@irinox>
----Copyright: Matra Datavision 2008
+-- File: BRepMesh_DiscretRoot.cdl
+-- Created: Thu Apr 10 09:57:55 2008
+-- Author: Peter KURNEV <pkv@irinox>
+--
+---Copyright: Matra Datavision 2008
+deferred class DiscretRoot from BRepMesh
-deferred class DiscretRoot from BRepMesh
-
- ---Purpose:
+inherits Transient from Standard
+
+ ---Purpose:
+ -- This is a common interface for meshing algorithms
+ -- instantiated by Mesh Factory and implemented by plugins.
uses
- Shape from TopoDS
-
+ Shape from TopoDS
+
--raises
-is
-
- Initialize
- returns DiscretRoot from BRepMesh;
-
- SetDeflection(me: out;
- theDeflection : Real from Standard);
- ---C++: alias "Standard_EXPORT virtual ~BRepMesh_DiscretRoot();"
-
- Deflection(me)
- returns Real from Standard;
-
- SetAngle(me: out;
- theAngle: Real from Standard);
-
- Angle(me)
- returns Real from Standard;
-
- SetShape(me: out;
- theShape: Shape from TopoDS);
-
- Shape(me)
- returns Shape from TopoDS;
- ---C++: return const &
-
- Perform(me: out)
- is deferred;
-
- IsDone(me)
- returns Boolean from Standard;
-
- --
- -- Protected methods
- --
- SetDone(me:out)
- is protected;
-
- SetNotDone(me:out)
- is protected;
-
- Init(me:out)
- is virtual protected;
-fields
- myDeflection : Real from Standard is protected;
+is
+ Initialize
+ returns DiscretRoot from BRepMesh;
+
+ SetDeflection ( me : mutable;
+ theDeflection : Real from Standard);
+ ---Purpose:
+ -- Setup linear deflection.
+
+ ---C++: alias "Standard_EXPORT virtual ~BRepMesh_DiscretRoot();"
+
+ Deflection (me)
+ returns Real from Standard;
+ ---Purpose:
+ -- Returns linear deflection.
+
+ SetAngle ( me : mutable;
+ theAngle : Real from Standard);
+ ---Purpose:
+ -- Setup angular deflection.
+
+ Angle (me)
+ returns Real from Standard;
+ ---Purpose:
+ -- Returns angular deflection.
+
+ SetShape ( me : mutable;
+ theShape : Shape from TopoDS);
+ ---Purpose:
+ -- Set the shape to triangulate.
+
+ Shape (me)
+ returns Shape from TopoDS;
+ ---C++: return const &
+
+ Perform (me : mutable)
+ is deferred;
+ ---Purpose:
+ -- Compute triangulation for set shape.
+
+ IsDone (me)
+ returns Boolean from Standard;
+ ---Purpose:
+ -- Returns true if triangualtion was performed and has success.
+
+ --
+ -- Protected methods
+ --
+ SetDone (me : mutable)
+ is protected;
+
+ SetNotDone (me : mutable)
+ is protected;
+
+ Init (me : mutable)
+ is virtual protected;
+
+fields
+ myDeflection : Real from Standard is protected;
myAngle : Real from Standard is protected;
- myShape : Shape from TopoDS is protected;
- myIsDone : Boolean from Standard is protected;
-
+ myShape : Shape from TopoDS is protected;
+ myIsDone : Boolean from Standard is protected;
+
end DiscretRoot;
-// File: BRepMesh_DiscretRoot.cxx
-// Created: Thu Apr 10 10:08:44 2008
-// Author: Peter KURNEV
-// <pkv@irinox>
-
+// File: BRepMesh_DiscretRoot.cxx
+// Created: Thu Apr 10 10:08:44 2008
+// Author: Peter KURNEV <pkv@irinox>
#include <BRepMesh_DiscretRoot.ixx>
-
+
//=======================================================================
//function : BRepMesh_DiscretRoot
-//purpose :
+//purpose :
//=======================================================================
BRepMesh_DiscretRoot::BRepMesh_DiscretRoot()
+: myDeflection (0.001),
+ myAngle (0.1),
+ myIsDone (Standard_False)
{
- myIsDone=Standard_False;
- myDeflection=0.001;
- myAngle=0.1;
+ //
}
+
//=======================================================================
//function : ~
-//purpose :
+//purpose :
//=======================================================================
BRepMesh_DiscretRoot::~BRepMesh_DiscretRoot()
{
}
+
//=======================================================================
//function : SetDeflection
-//purpose :
+//purpose :
//=======================================================================
-void BRepMesh_DiscretRoot::SetDeflection(const Standard_Real theDeflection)
+void BRepMesh_DiscretRoot::SetDeflection (const Standard_Real theDeflection)
{
- myDeflection=theDeflection;
+ myDeflection = theDeflection;
}
+
//=======================================================================
//function : Deflection
//purpose :
//=======================================================================
-Standard_Real BRepMesh_DiscretRoot::Deflection()const
+Standard_Real BRepMesh_DiscretRoot::Deflection() const
{
return myDeflection;
}
+
//=======================================================================
//function : SetAngle
-//purpose :
+//purpose :
//=======================================================================
-void BRepMesh_DiscretRoot::SetAngle(const Standard_Real theAngle)
+void BRepMesh_DiscretRoot::SetAngle (const Standard_Real theAngle)
{
- myAngle=theAngle;
+ myAngle = theAngle;
}
+
//=======================================================================
//function : Angle
-//purpose :
+//purpose :
//=======================================================================
-Standard_Real BRepMesh_DiscretRoot::Angle()const
+Standard_Real BRepMesh_DiscretRoot::Angle() const
{
return myAngle;
}
+
//=======================================================================
//function : SetShape
-//purpose :
+//purpose :
//=======================================================================
-void BRepMesh_DiscretRoot::SetShape(const TopoDS_Shape& theShape)
+void BRepMesh_DiscretRoot::SetShape (const TopoDS_Shape& theShape)
{
- myShape=theShape;
+ myShape = theShape;
}
+
//=======================================================================
//function : Shape
-//purpose :
+//purpose :
//=======================================================================
-const TopoDS_Shape& BRepMesh_DiscretRoot::Shape()const
+const TopoDS_Shape& BRepMesh_DiscretRoot::Shape() const
{
return myShape;
}
+
//=======================================================================
//function : IsDone
-//purpose :
+//purpose :
//=======================================================================
-Standard_Boolean BRepMesh_DiscretRoot::IsDone()const
+Standard_Boolean BRepMesh_DiscretRoot::IsDone() const
{
return myIsDone;
}
+
//=======================================================================
//function : SetDone
-//purpose :
+//purpose :
//=======================================================================
-void BRepMesh_DiscretRoot::SetDone()
+void BRepMesh_DiscretRoot::SetDone()
{
- myIsDone=Standard_True;
+ myIsDone = Standard_True;
}
+
//=======================================================================
//function : SetNotDone
-//purpose :
+//purpose :
//=======================================================================
-void BRepMesh_DiscretRoot::SetNotDone()
+void BRepMesh_DiscretRoot::SetNotDone()
{
- myIsDone=Standard_False;
+ myIsDone = Standard_False;
}
+
//=======================================================================
//function : Init
-//purpose :
+//purpose :
//=======================================================================
-void BRepMesh_DiscretRoot::Init()
+void BRepMesh_DiscretRoot::Init()
{
-
+ //
}
defedge: Real from Standard)
is static private;
+ SetParallel ( me : mutable;
+ theInParallel : Boolean from Standard);
+ ---Purpose:
+ -- Request algorithm to launch in multiple threads
+ -- to improve performance (should be supported by plugin).
+
+ IsParallel (me)
+ returns Boolean from Standard;
+ ---Purpose:
+ -- Returns the multi-threading usage flag.
-- Output :
myDeflection : Real from Standard;
myDtotale : Real from Standard;
myWithShare : Boolean from Standard;
+ myInParallel : Boolean from Standard;
myVertices : DataMapOfVertexInteger from BRepMesh;
myEdges : DataMapOfShapePairOfPolygon from BRepMesh;
myInternaledges: DataMapOfShapePairOfPolygon from BRepMesh;
#include <vector>
-// NOTE: replaced by more correct check
-// #if defined(WNT) || defined(LIN)
-// #define HAVE_TBB 1
-// #endif
-
-// paralleling with Intel TBB
#ifdef HAVE_TBB
-#include <tbb/parallel_for_each.h>
+ // paralleling using Intel TBB
+ #include <tbb/parallel_for_each.h>
#endif
#define UVDEFLECTION 1.e-05
const Standard_Boolean theInshape,
const Standard_Boolean theRelative,
const Standard_Boolean theShapetrigu) :
- myAngle(theAngl), myDeflection(theDefle),myWithShare(theWithShare),
- myNbLocat(0), myRelative(theRelative), myShapetrigu(theShapetrigu),
- myInshape(theInshape)
+ myAngle (theAngl),
+ myDeflection (theDefle),
+ myWithShare (theWithShare),
+ myInParallel (Standard_False),
+ myNbLocat (0),
+ myRelative (theRelative),
+ myShapetrigu (theShapetrigu),
+ myInshape (theInshape)
{
myAllocator = new NCollection_IncAllocator(64000);
if(myRelative)
const Standard_Boolean theInshape,
const Standard_Boolean theRelative,
const Standard_Boolean theShapetrigu):
- myAngle(theAngl), myDeflection(theDefle),myWithShare(theWithShare),
- myNbLocat(0), myRelative(theRelative), myShapetrigu(theShapetrigu),
- myInshape(theInshape)
+ myAngle (theAngl),
+ myDeflection (theDefle),
+ myWithShare (theWithShare),
+ myInParallel (Standard_False),
+ myNbLocat (0),
+ myRelative (theRelative),
+ myShapetrigu (theShapetrigu),
+ myInshape (theInshape)
{
myAllocator = new NCollection_IncAllocator(64000);
if(myRelative)
Add(aF);
aFaces.push_back(aF);
}
-
- // mesh faces in parallel threads using TBB
-#ifdef HAVE_TBB
- if (Standard::IsReentrant())
+
+ if (myInParallel)
+ {
+ #ifdef HAVE_TBB
+ // mesh faces in parallel threads using TBB
tbb::parallel_for_each (aFaces.begin(), aFaces.end(), *this);
+ #else
+ // alternative parallelization not yet available
+ for (std::vector<TopoDS_Face>::iterator it(aFaces.begin()); it != aFaces.end(); it++)
+ Process (*it);
+ #endif
+ }
else
-#endif
- for (std::vector<TopoDS_Face>::iterator it(aFaces.begin()); it != aFaces.end(); it++)
- Process (*it);
+ {
+ for (std::vector<TopoDS_Face>::iterator it(aFaces.begin()); it != aFaces.end(); it++)
+ Process (*it);
+ }
}
--- File: BRepMesh_IncrementalMesh.cdl
--- Created: Tue Jun 20 10:19:28 1995
--- Author: Stagiaire Alain JOURDAIN
--- <ajo@phobox>
----Copyright: Matra Datavision 1995
-
+-- File: BRepMesh_IncrementalMesh.cdl
+-- Created: Tue Jun 20 10:19:28 1995
+-- Author: Stagiaire Alain JOURDAIN <ajo@phobox>
+--
+---Copyright: Matra Datavision 1995
class IncrementalMesh from BRepMesh
- inherits DiscretRoot from BRepMesh
-
- ---Purpose: Builds the mesh of a shape with respect of their
- -- correctly triangulated parts
- --
+inherits DiscretRoot from BRepMesh
+
+ ---Purpose: Builds the mesh of a shape with respect of their
+ -- correctly triangulated parts
+ --
-uses
+uses
Box from Bnd,
Shape from TopoDS,
Face from TopoDS,
MapOfShape from TopTools,
IndexedDataMapOfShapeListOfShape from TopTools,
DataMapOfShapeReal from TopTools,
- FastDiscret from BRepMesh,
- Status from BRepMesh
+ FastDiscret from BRepMesh,
+ Status from BRepMesh,
+ PDiscretRoot from BRepMesh
-is
+is
Create
- returns IncrementalMesh from BRepMesh;
+ returns IncrementalMesh from BRepMesh;
---C++: alias "Standard_EXPORT virtual ~BRepMesh_IncrementalMesh();"
-
- Create(S : Shape from TopoDS;
- D : Real from Standard;
- Relatif: Boolean from Standard = Standard_False;
- Ang : Real from Standard = 0.5)
- ---Purpose: if the boolean <Relatif> is True, the
- -- deflection used for the polygonalisation of
- -- each edge will be <D> * Size of Edge.
- -- the deflection used for the faces will be the maximum
- -- deflection of their edges.
- returns IncrementalMesh from BRepMesh;
-
- SetRelative(me:out;
- theFlag : Boolean from Standard);
-
- Relative(me)
- returns Boolean from Standard;
-
- Init(me:out)
- is redefined protected;
-
- Perform(me:out)
- is redefined;
-
- Update(me:out;
- S : Shape from TopoDS)
- ---Purpose: Builds the incremental mesh of the shape
- is static;
-
- IsModified(me) returns Boolean from Standard
- is static;
-
- Update(me : in out;
- E : Edge from TopoDS)
- ---Purpose: Locate a correct discretisation if it exists
- -- Set no one otherwise
- is static private;
-
- Update(me : in out;
- F : Face from TopoDS)
- ---Purpose: if the face is not correctly triangulated, or
- -- if one of its edges is to be discretisated
- -- correctly, the triangulation of this face is
- -- built.
- is static private;
-
- GetStatusFlags(me)
- returns Integer from Standard
- is static;
-
-
+
+ Create (S : Shape from TopoDS;
+ D : Real from Standard;
+ Relatif : Boolean from Standard = Standard_False;
+ Ang : Real from Standard = 0.5)
+ returns IncrementalMesh from BRepMesh;
+ ---Purpose: If the boolean <Relatif> is True, the
+ -- deflection used for the polygonalisation of
+ -- each edge will be <D> * Size of Edge.
+ -- the deflection used for the faces will be the maximum
+ -- deflection of their edges.
+
+ SetRelative ( me : mutable;
+ theFlag : Boolean from Standard);
+
+ Relative (me)
+ returns Boolean from Standard;
+
+ Init (me : mutable)
+ is redefined protected;
+
+ Perform (me : mutable)
+ is redefined;
+
+ Update (me : mutable;
+ S : Shape from TopoDS)
+ is static;
+ ---Purpose: Builds the incremental mesh of the shape
+
+ IsModified (me)
+ returns Boolean from Standard
+ is static;
+
+ Update (me : mutable;
+ E : Edge from TopoDS)
+ is static private;
+ ---Purpose: Locate a correct discretisation if it exists
+ -- Set no one otherwise
+
+ Update (me : mutable;
+ F : Face from TopoDS)
+ is static private;
+ ---Purpose: If the face is not correctly triangulated, or
+ -- if one of its edges is to be discretisated
+ -- correctly, the triangulation of this face is
+ -- built.
+
+ GetStatusFlags (me)
+ returns Integer from Standard
+ is static;
+
+ SetParallel ( me : mutable;
+ theInParallel : Boolean from Standard);
+ ---Purpose:
+ -- Request algorithm to launch in multiple threads to improve performance.
+
+ IsParallel (me)
+ returns Boolean from Standard;
+ ---Purpose:
+ -- Returns the multi-threading usage flag.
+
+ --
+ -- Plugin interface
+ --
+ Discret (myclass;
+ theShape : Shape from TopoDS;
+ theDeflection : Real from Standard;
+ theAngle : Real from Standard;
+ theAlgo : out PDiscretRoot from BRepMesh)
+ returns Integer from Standard;
+ ---Purpose:
+ -- Plugin interface for the Mesh Factories.
+
+ IsParallelDefault (myclass)
+ returns Boolean from Standard;
+ ---Purpose:
+ -- Returns multi-threading usage flag set by default in
+ -- Discret() static method (thus applied only to Mesh Factories).
+
+ SetParallelDefault (myclass;
+ theInParallel : Boolean from Standard);
+ ---Purpose:
+ -- Setup multi-threading usage flag set by default in
+ -- Discret() static method (thus applied only to Mesh Factories).
+
fields
myRelative : Boolean from Standard is protected;
+ myInParallel : Boolean from Standard is protected;
myMap : MapOfShape from TopTools is protected;
myMesh : FastDiscret from BRepMesh is protected;
myModified : Boolean from Standard is protected;
- mymapedge : DataMapOfShapeReal from TopTools is protected;
+ mymapedge : DataMapOfShapeReal from TopTools is protected;
myancestors : IndexedDataMapOfShapeListOfShape from TopTools is protected;
mydtotale : Real from Standard is protected;
myBox : Box from Bnd is protected;
myStatus : Integer from Standard is protected;
end IncrementalMesh;
-
-
-
-
#include <BRepMesh_Edge.hxx>
#include <BRepMesh_Triangle.hxx>
#include <BRepMesh_FastDiscretFace.hxx>
+#include <BRepMesh_PluginMacro.hxx>
#include <Bnd_Box.hxx>
#include <BRep_Builder.hxx>
#include <vector>
-// NOTE: to be replaced by more correct check
-// #if defined(WNT) || defined(LIN)
-// #define HAVE_TBB 1
-// #endif
-
-// paralleling with Intel TBB
#ifdef HAVE_TBB
-#include <tbb/parallel_for_each.h>
+ // paralleling using Intel TBB
+ #include <tbb/parallel_for_each.h>
#endif
+namespace
+{
+ //! Default flag to control parallelization for BRepMesh_IncrementalMesh
+ //! tool returned for Mesh Factory
+ static Standard_Boolean IS_IN_PARALLEL = Standard_False;
+};
+
//=======================================================================
//function : BRepMesh_IncrementalMesh
//purpose :
//=======================================================================
BRepMesh_IncrementalMesh::BRepMesh_IncrementalMesh()
-: myRelative(Standard_False),
- myModified(Standard_False),
- myStatus(0)
+: myRelative (Standard_False),
+ myInParallel (Standard_False),
+ myModified (Standard_False),
+ myStatus (0)
{
mymapedge.Clear();
myancestors.Clear();
//function : BRepMesh_IncrementalMesh
//purpose :
//=======================================================================
-
-BRepMesh_IncrementalMesh::
-BRepMesh_IncrementalMesh(const TopoDS_Shape& S,
- const Standard_Real D,
- const Standard_Boolean Rel,
- const Standard_Real Ang) :
- myRelative(Rel),
- myModified(Standard_False),
- myStatus(0)
+BRepMesh_IncrementalMesh::BRepMesh_IncrementalMesh (const TopoDS_Shape& theShape,
+ const Standard_Real theDeflection,
+ const Standard_Boolean theRelative,
+ const Standard_Real theAngle)
+: myRelative (theRelative),
+ myInParallel (Standard_False),
+ myModified (Standard_False),
+ myStatus (0)
{
mymapedge.Clear();
myancestors.Clear();
- myDeflection = D;
- myAngle = Ang;
- myShape = S;
-
+ myDeflection = theDeflection;
+ myAngle = theAngle;
+ myShape = theShape;
+
//
- Perform();
+ Perform();
}
//=======================================================================
{
}
+//=======================================================================
+//function : SetParallel
+//purpose :
+//=======================================================================
+void BRepMesh_IncrementalMesh::SetParallel (const Standard_Boolean theInParallel)
+{
+ myInParallel = theInParallel;
+}
+
+//=======================================================================
+//function : IsParallel
+//purpose :
+//=======================================================================
+Standard_Boolean BRepMesh_IncrementalMesh::IsParallel() const
+{
+ return myInParallel;
+}
+
//=======================================================================
//function : Init
//purpose :
//purpose : Builds the incremental mesh of the shape
//=======================================================================
void BRepMesh_IncrementalMesh::Update(const TopoDS_Shape& S)
-
{
myModified = Standard_False;
TopExp_Explorer ex;
aFaces.push_back (F);
}
- // mesh faces in parallel threads using TBB
-#ifdef HAVE_TBB
- if (Standard::IsReentrant())
+ if (myInParallel)
+ {
+ #ifdef HAVE_TBB
+ // mesh faces in parallel threads using TBB
tbb::parallel_for_each (aFaces.begin(), aFaces.end(), *myMesh.operator->());
+ #else
+ // alternative parallelization not yet available
+ for (std::vector<TopoDS_Face>::iterator it(aFaces.begin()); it != aFaces.end(); it++)
+ myMesh->Process (*it);
+ #endif
+ }
else
-#endif
- for (std::vector<TopoDS_Face>::iterator it(aFaces.begin()); it != aFaces.end(); it++)
- myMesh->Process (*it);
+ {
+ for (std::vector<TopoDS_Face>::iterator it(aFaces.begin()); it != aFaces.end(); it++)
+ myMesh->Process (*it);
+ }
// maillage des edges non contenues dans les faces :
Standard_Real f, l, defedge;
ex.Next();
}
-}
+}
+
//=======================================================================
//function : Update(edge)
//purpose : Locate a correct discretisation if it exists
}
}
}
+
+//=======================================================================
+//function : Discret
+//purpose :
+//=======================================================================
+Standard_Integer BRepMesh_IncrementalMesh::Discret (const TopoDS_Shape& theShape,
+ const Standard_Real theDeflection,
+ const Standard_Real theAngle,
+ BRepMesh_PDiscretRoot& theAlgo)
+{
+ BRepMesh_IncrementalMesh* anAlgo = new BRepMesh_IncrementalMesh();
+ anAlgo->SetDeflection (theDeflection);
+ anAlgo->SetAngle (theAngle);
+ anAlgo->SetShape (theShape);
+ anAlgo->SetParallel (IS_IN_PARALLEL);
+ theAlgo = anAlgo;
+ return 0; // no error
+}
+
+//=======================================================================
+//function : IsParallelDefault
+//purpose :
+//=======================================================================
+Standard_Boolean BRepMesh_IncrementalMesh::IsParallelDefault()
+{
+#ifdef HAVE_TBB
+ return IS_IN_PARALLEL;
+#else
+ // no alternative parallelization yet - flag has no meaning
+ return Standard_False;
+#endif
+}
+
+//=======================================================================
+//function : Discret
+//purpose :
+//=======================================================================
+void BRepMesh_IncrementalMesh::SetParallelDefault (const Standard_Boolean theInParallel)
+{
+ IS_IN_PARALLEL = theInParallel;
+}
+
+//! Export Mesh Plugin entry function
+DISCRETPLUGIN(BRepMesh_IncrementalMesh)
--- /dev/null
+#ifndef _BRepMesh_PluginEntryType_HeaderFile
+#define _BRepMesh_PluginEntryType_HeaderFile
+
+#ifndef _Standard_Real_HeaderFile
+ #include <Standard_Real.hxx>
+#endif
+
+class TopoDS_Shape;
+class BRepMesh_DiscretRoot;
+
+//! Type definition for plugin exported function
+typedef Standard_Integer (*BRepMesh_PluginEntryType) (const TopoDS_Shape& theShape,
+ const Standard_Real theDeflection,
+ const Standard_Real theAngle,
+ BRepMesh_DiscretRoot*& theMeshAlgoInstance);
+
+#endif //_BRepMesh_PluginEntryType_HeaderFile
+BRepMesh_PluginEntryType.hxx
BRepMesh_PluginMacro.hxx
BRepMesh_ClassifierPtr.hxx
BRepMesh_CellFilter.hxx
#include <TColStd_MapIteratorOfMapOfAsciiString.hxx>
#include <BRepMesh_FactoryError.hxx>
#include <BRepMesh_DiscretRoot.hxx>
+#include <BRepMesh_IncrementalMesh.hxx>
#include <Bnd_Box.hxx>
#include <BRepMesh_PDiscretRoot.hxx>
#include <DBRep.hxx>
static Standard_Integer mpgetfunctionname (Draw_Interpretor& , Standard_Integer , const char** );
static Standard_Integer mperror (Draw_Interpretor& , Standard_Integer , const char** );
static Standard_Integer mpincmesh (Draw_Interpretor& , Standard_Integer , const char** );
+static Standard_Integer mpparallel (Draw_Interpretor& , Standard_Integer , const char** );
static Standard_Integer triarea (Draw_Interpretor& , Standard_Integer , const char** );
static Standard_Integer tricheck (Draw_Interpretor& , Standard_Integer , const char** );
theCommands.Add("mpgetfunctionname", "use mpgetfunctionname", __FILE__, mpgetfunctionname , g);
theCommands.Add("mperror" , "use mperror" , __FILE__, mperror , g);
theCommands.Add("mpincmesh" , "use mpincmesh" , __FILE__, mpincmesh , g);
+ theCommands.Add("mpparallel" , "mpparallel [toTurnOn] : show / set multi-threading flag for incremental mesh",
+ __FILE__, mpparallel, g);
theCommands.Add("triarea","shape [eps] (computes triangles and surface area)",__FILE__, triarea, g);
theCommands.Add("tricheck", "shape (checks triangulation of shape)", __FILE__, tricheck, g);
//
aName=a[1];
//
- BRepMesh_DiscretFactory::Get().SetDefaultName(aName);
- printf(" *ready\n");
+ if (BRepMesh_DiscretFactory::Get().SetDefaultName (aName))
+ printf(" *ready\n");
+ else
+ printf(" *fault\n");
//
return 0;
}
//
aName=a[1];
//
- BRepMesh_DiscretFactory::Get().SetFunctionName(aName);
- printf(" *ready\n");
+ if (BRepMesh_DiscretFactory::Get().SetFunctionName (aName))
+ printf(" *ready\n");
+ else
+ printf(" *fault\n");
//
return 0;
}
//=======================================================================
static Standard_Integer mpincmesh (Draw_Interpretor& , Standard_Integer n, const char** a)
{
- Standard_Boolean bIsDone;
Standard_Real aDeflection, aAngle;
TopoDS_Shape aS;
- BRepMesh_FactoryError aErr;
- BRepMesh_PDiscretRoot pAlgo;
//
if (n<3) {
printf(" use mpincmesh s deflection [angle]\n");
aAngle=atof(a[3]);
}
//
- pAlgo=BRepMesh_DiscretFactory::Get().Discret(aS,
- aDeflection,
- aAngle);
+ Handle(BRepMesh_DiscretRoot) aMeshAlgo = BRepMesh_DiscretFactory::Get().Discret (aS,
+ aDeflection,
+ aAngle);
//
- aErr=BRepMesh_DiscretFactory::Get().ErrorStatus();
- if (aErr!=BRepMesh_FE_NOERROR) {
+ BRepMesh_FactoryError aErr = BRepMesh_DiscretFactory::Get().ErrorStatus();
+ if (aErr != BRepMesh_FE_NOERROR)
+ {
printf(" *Factory::Get().ErrorStatus()=%d\n", (int)aErr);
}
//
- if (!pAlgo) {
+ if (aMeshAlgo.IsNull())
+ {
printf(" *Can not create the algo\n");
return 0;
}
//
- pAlgo->Perform();
- bIsDone=pAlgo->IsDone();
- if (!bIsDone) {
+ aMeshAlgo->Perform();
+ if (!aMeshAlgo->IsDone())
+ {
printf(" *Not done\n");
}
//
<< " Free_nodes " << nbFreeNodes << "\n";
return 0;
}
+
+//=======================================================================
+//function : mpparallel
+//purpose :
+//=======================================================================
+static int mpparallel (Draw_Interpretor& di, Standard_Integer argc, const char** argv)
+{
+ if (argc == 2)
+ {
+ Standard_Boolean isParallelOn = atoi (argv[1]) == 1;
+ BRepMesh_IncrementalMesh::SetParallelDefault (isParallelOn);
+ }
+ std::cout << "Incremental Mesh, multi-threading "
+ << (BRepMesh_IncrementalMesh::IsParallelDefault() ? "ON\n" : "OFF\n");
+ return 0;
+}
exception Failure inherits Failure from Standard;
- private class MapOfFunctions instantiates DataMap from TCollection(AsciiString from TCollection ,Function from OSD, AsciiString from TCollection);
+ class MapOfFunctions instantiates DataMap from TCollection(AsciiString from TCollection ,Function from OSD, AsciiString from TCollection);
Load(aGUID: GUID from Standard) returns Transient from Standard
}
}
Standard_Real aDeflection = GetDeflection(aShape, aDrawer);
- //using of plugin
+
// Check if it is possible to avoid unnecessary recomputation
// of shape triangulation
- if( !BRepTools::Triangulation(aShape, aDeflection) )
+ if (!BRepTools::Triangulation (aShape, aDeflection))
{
- BRepTools::Clean(aShape);
+ BRepTools::Clean (aShape);
- BRepMesh_PDiscretRoot pAlgo;
- pAlgo=BRepMesh_DiscretFactory::Get().Discret(aShape,
- aDeflection,
- aDrawer->HLRAngle());
- if (pAlgo)
- pAlgo->Perform();
+ // retrieve meshing tool from Factory
+ Handle(BRepMesh_DiscretRoot) aMeshAlgo = BRepMesh_DiscretFactory::Get().Discret (aShape,
+ aDeflection,
+ aDrawer->HLRAngle());
+ if (!aMeshAlgo.IsNull())
+ aMeshAlgo->Perform();
}
+
ShadeFromShape(aShape, aDeflection, Standard_True, aPresentation, aDrawer);
}
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