projects / occt.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
0025773: Visualization - remove AIS_Drawer class and transfer its Link() logic to...
[occt.git] / samples / mfc / occtdemo / Textures / Textures_Presentation.cpp
CommitLineData
7fd59977 1// Textures_Presentation.cpp: implementation of the Textures_Presentation class.
2// Creation of textural presentation of shape
3//////////////////////////////////////////////////////////////////////
4
5#include "stdafx.h"
6#include "Textures_Presentation.h"
7
8
9#include <TopoDS_Solid.hxx>
10#include <BRepPrimAPI_MakeBox.hxx>
11#include <BRepFeat_Gluer.hxx>
12#include <TopExp.hxx>
13#include <TopTools_IndexedMapOfShape.hxx>
14#include <BRepBuilderAPI_MakeEdge.hxx>
15#include <Geom_Circle.hxx>
16#include <Geom_TrimmedCurve.hxx>
17#include <BRepBuilderAPI_MakeWire.hxx>
18#include <BRepPrimAPI_MakePrism.hxx>
19#include <BRepBuilderAPI_MakeFace.hxx>
20#include <BRepPrimAPI_MakeCylinder.hxx>
21#include <BRepAlgoAPI_Cut.hxx>
22#include <AIS_TexturedShape.hxx>
23#include <BRepTools.hxx>
24#include <Geom_BSplineSurface.hxx>
25#include <GeomAPI_PointsToBSplineSurface.hxx>
26#include <TopTools_SequenceOfShape.hxx>
27#include <BRepBuilderAPI_MakePolygon.hxx>
28#include <gce_MakeCirc.hxx>
29#include <BRepOffsetAPI_ThruSections.hxx>
30#include <V3d_AmbientLight.hxx>
31#include <V3d_PositionalLight.hxx>
32#include <V3d_DirectionalLight.hxx>
33#include <V3d_SpotLight.hxx>
6262338c 34#include <Prs3d_Drawer.hxx>
7fd59977 35#include <Prs3d_ShadingAspect.hxx>
36#include <Graphic3d_AspectFillArea3d.hxx>
37#include <Graphic3d_Texture2D.hxx>
38
39
40// Initialization of global variable with an instance of this class
41OCCDemo_Presentation* OCCDemo_Presentation::Current = new Textures_Presentation;
42
43// Initialization of array of samples
44const Textures_Presentation::PSampleFuncType Textures_Presentation::SampleFuncs[] =
45{
46 &Textures_Presentation::sampleCustomTexture2,
47 &Textures_Presentation::sampleCustomTexture3,
48// &Textures_Presentation::samplePredefTexture1,
49// &Textures_Presentation::samplePredefTexture2,
50 &Textures_Presentation::sampleCustomTexture1
51};
52
53#ifdef WNT
54 #define EOL "\r\n"
55#else
56 #define EOL "\n"
57#endif
58
59#define ZVIEW_SIZE 100
60
61//////////////////////////////////////////////////////////////////////
62// Construction/Destruction
63//////////////////////////////////////////////////////////////////////
64
65Textures_Presentation::Textures_Presentation()
66{
67 myNbSamples = sizeof(SampleFuncs)/sizeof(PSampleFuncType);
68 setName ("Textured Shapes");
69}
70
71//////////////////////////////////////////////////////////////////////
72// Sample execution
73//////////////////////////////////////////////////////////////////////
74
75void Textures_Presentation::DoSample()
76{
77 getAISContext()->EraseAll();
78 if (myIndex >=0 && myIndex < myNbSamples)
79 (this->*SampleFuncs[myIndex])();
80}
81
82void Textures_Presentation::Init()
83{
84 // initialize v3d_view so it displays textures well
85 getViewer()->InitActiveViews();
86 Handle_V3d_View aView = getViewer()->ActiveView();
87 aView->SetSurfaceDetail(V3d_TEX_ALL);
88 aView->SetSize(ZVIEW_SIZE);
89
90 setResultTitle("Textured Shape");
91 setResultText(
92 " TopoDS_Shape aShape;" EOL
93 "" EOL
94 " // initialize aShape" EOL
95 " // aShape = ..." EOL
96 "" EOL
97 " // create a textured presentation object for aShape" EOL
98 " Handle_AIS_TexturedShape aTShape = new AIS_TexturedShape(aShape);" EOL
99 "" EOL
100 " TCollection_AsciiString aTFileName;" EOL
101 "" EOL
102 " // initialize aTFileName with an existing texture file name" EOL
103 " // (gif, bmp, xwd, rgb, and other formats are supported)" EOL
104 " // OR with an integer value string (max = Graphic3d_Texture2D::NumberOfTextures())" EOL
105 " // which will indicate use of predefined texture of this number" EOL
106 " // aTFileName = ..." EOL
107 "" EOL
108 " aTShape->SetTextureFileName(aTFileName);" EOL
109 "" EOL
110 " // do other initialization of AIS_TexturedShape" EOL
111 " Standard_Real nRepeat;" EOL
112 " Standard_Boolean toRepeat;" EOL
113 " Standard_Boolean toScale;" EOL
114 " // initialize aRepeat, toRepeat, toScale ..." EOL
115 "" EOL
116 " aTShape->SetTextureMapOn();" EOL
117 " aTShape->SetTextureRepeat(toRepeat, nRepeat, nRepeat);" EOL
118 " aTShape->SetTextureScale(toScale);" EOL
119 " " EOL
120 " // mode 3 is \"textured\" mode of AIS_TexturedShape, " EOL
121 " // other modes will display the \"normal\", non-textured shape," EOL
122 " // in wireframe(1) or shaded(2) modes correspondingly" EOL
123 " aTShape->SetDisplayMode(3); " EOL
124 "" EOL
125 " // V3d_TEX_ALL constant must be set as surface detail" EOL
126 " // for current view to see AIS_TexturedShape" EOL
127 " myCurrentView->SetSurfaceDetail(V3d_TEX_ALL);" EOL);
128}
129
130//////////////////////////////////////////////////////////////////////
131// Sample functions
132//////////////////////////////////////////////////////////////////////
133
134
135
136
137//================================================================
138// Function : lightsOnOff
139// Purpose : 6 lights are used for a brighter demonstration of textured shapes
140// call lightsOnOff(false) before showing normal shape
141// call lightsOnOff(true) before showing textured shape
142//================================================================
143void Textures_Presentation::lightsOnOff(Standard_Boolean isOn)
144{
145 static Handle_V3d_Light aLight1 = new V3d_DirectionalLight(getViewer(), V3d_XnegYposZneg);
146 static Handle_V3d_Light aLight2 = new V3d_DirectionalLight(getViewer(), V3d_XnegYnegZpos);
147 static Handle_V3d_Light aLight3 = new V3d_DirectionalLight(getViewer(), V3d_XposYnegZpos);
148 static Handle_V3d_Light aLight4 = new V3d_DirectionalLight(getViewer(), V3d_XnegYnegZneg);
149 static Handle_V3d_Light aLight5 = new V3d_DirectionalLight(getViewer(), V3d_XnegYposZpos);
150 static Handle_V3d_Light aLight6 = new V3d_DirectionalLight(getViewer(), V3d_XposYposZpos);
151
152 if (isOn)
153 {
154 getViewer()->SetLightOn(aLight1);
155 getViewer()->SetLightOn(aLight2);
156 getViewer()->SetLightOn(aLight3);
157 getViewer()->SetLightOn(aLight4);
158 getViewer()->SetLightOn(aLight5);
159 getViewer()->SetLightOn(aLight6);
160 }
161 else
162 {
163 getViewer()->SetLightOff(aLight1);
164 getViewer()->SetLightOff(aLight2);
165 getViewer()->SetLightOff(aLight3);
166 getViewer()->SetLightOff(aLight4);
167 getViewer()->SetLightOff(aLight5);
168 getViewer()->SetLightOff(aLight6);
169 }
170}
171
172//================================================================
173// Function : Textures_Presentation::displayTextured
174// display an AIS_TexturedShape based on a given shape with texture with given filename
175// filename can also be an integer value ("2", "5", etc.), in this case
176// a predefined texture from Graphic3d_NameOfTexture2D with number = this value
177// is loaded.
178// the function returns !WAIT_A_SECOND
179//================================================================
180Standard_Boolean Textures_Presentation::displayTextured(const TopoDS_Shape& aShape,
181 TCollection_AsciiString aTFileName,
182 Standard_Boolean toDisplayOriginal,
183 Standard_Boolean toScale,
184 Standard_Integer nRepeat)
185{
186 // create a textured presentation object for aShape
187 Handle_AIS_TexturedShape aTShape = new AIS_TexturedShape(aShape);
188
189 // load texture from file if it is not an integer value
190 // integer value indicates a number of texture in predefined textures enumeration
191 if (!aTFileName.IsIntegerValue())
192 {
193 TCollection_AsciiString aTmp(aTFileName);
194 aTFileName = GetDataDir();
195 aTFileName = aTFileName + "\\" + aTmp;
196 }
197
198 aTShape->SetTextureFileName(aTFileName);
199
200 // do other initialization of AIS_TexturedShape
201 aTShape->SetTextureMapOn();
202 aTShape->SetTextureRepeat(Standard_True, nRepeat, nRepeat);
203 aTShape->SetTextureScale(toScale);
204
205 aTShape->SetDisplayMode(3); // mode 3 is "textured" mode
206
207 // output to the screen, first original shape, then textured
208 if (toDisplayOriginal)
209 {
210 lightsOnOff(Standard_False);
211
212 Handle_AIS_Shape aAisShape = drawShape(aShape/*, Quantity_NOC_WHITE*/);
213 if (WAIT_A_SECOND) return Standard_False;
214 getAISContext()->Erase(aAisShape, Standard_False);
215 }
216
217 // show textured shape more brightly - turn on more lights
218 lightsOnOff(Standard_True);
219
220 getAISContext()->Display(aTShape, Standard_True);
221
222 return Standard_True;
223}
224
225
226//================================================================
227// Function : Textures_Presentation::loadShape
228// loads a shape from a given brep file from data dir into a given TopoDS_Shape object
229//================================================================
230Standard_Boolean Textures_Presentation::loadShape(TopoDS_Shape& aShape,
231 TCollection_AsciiString aFileName)
232{
233 // create a TopoDS_Shape -> read from a brep file
234 TCollection_AsciiString aPath(GetDataDir());
235 aPath = aPath + "\\" + aFileName;
236
237 BRep_Builder aBld;
238 Standard_Boolean isRead = BRepTools::Read (aShape, aPath.ToCString(), aBld);
239 if (!isRead)
240 {
241 aPath += " was not found. The sample can not be shown.";
242 setResultText(aPath.ToCString());
243 return Standard_False;
244 }
245
246 return Standard_True;
247}
248
249
250//================================================================
251// Function : ScaleShape
252// Purpose : scales a given TopoDS_Shape
253//================================================================
254static void ScaleShape(TopoDS_Shape& aShape, Standard_Real ScaleFactor)
255{
256 gp_Trsf aTrsf;
257 aTrsf.SetScaleFactor(ScaleFactor);
258 aShape.Location(TopLoc_Location(aTrsf));
259}
260
261//================================================================
262// Function : Textures_Presentation::samplePoints
263// Purpose :
264//================================================================
265void Textures_Presentation::sampleCustomTexture1()
266{
267 Standard_Real a = 30.0;
268 TopoDS_Shape aShape = BRepPrimAPI_MakeBox(gp_Pnt(-a/2,-a/2,-a/2),a,a,a);
269 TopTools_IndexedMapOfShape aFaces;
270 TopExp::MapShapes(aShape, TopAbs_FACE, aFaces);
271
272 // faces on faces
273 Standard_CString OurFaces[] =
274 {
275 "aev.gif","mla.gif","msv.gif","asv.gif","agn.gif","emo.gif",0
276 };
277
278 lightsOnOff(Standard_False);
279 for (Standard_Integer i = 1; i <= aFaces.Extent(); i++)
280 {
281 drawShape(aFaces(i));
282 if (WAIT_A_LITTLE) return;
283 }
284
285 getViewer()->Erase();
286
287 for (i = 1; i <= aFaces.Extent(); i++)
288 {
289 displayTextured(aFaces(i), OurFaces[i-1], Standard_False, Standard_True, 1);
290 if (WAIT_A_LITTLE) return;
291 }
292}
293
294
295//================================================================
296// Function : Textures_Presentation::sampleCustomTexture2
297// Purpose :
298//================================================================
299void Textures_Presentation::sampleCustomTexture2()
300{
301 TopoDS_Shape aShape;
302 if (loadShape(aShape, "Pump_Nut.brep"))
303 {
304 // move the shape to [0,0,0]
305 gp_Trsf aTrsf;
306 gp_Ax3 oldAx3(gp_Pnt(81,280,0), gp::DZ());
307 gp_Ax3 newAx3(gp_Pnt(0,0,0), gp::DZ());
308 aTrsf.SetDisplacement(oldAx3, newAx3);
309 aShape.Move(TopLoc_Location(aTrsf));
310
311 displayTextured(aShape, "texture1.gif");
312 }
313}
314
315
316//================================================================
317// Function : Textures_Presentation::sampleCustomTexture3
318// Purpose :
319//================================================================
320void Textures_Presentation::sampleCustomTexture3()
321{
322 TopoDS_Shape aShape;
323 if (loadShape(aShape, "Pump_TopCover.brep"))
324 {
325 ScaleShape(aShape, 0.2);
326 displayTextured(aShape, "texture2.gif");
327 }
328}
329
330/*
331//================================================================
332// Function : Textures_Presentation::samplePredefTexture1
333// Purpose :
334//================================================================
335void Textures_Presentation::samplePredefTexture1()
336{
337 // the number of points of wires:
338 const Standard_Integer aNbOfPnt = 4;
339
340 // creates arrays of coordinates of wires:
341 Standard_Real aCoords [][aNbOfPnt][3] =
342 {{{-4,0,-2},{0,4,-2},{4,0,-2},{0,-4,-2}},{{-2,-2,2},{-2,2,2},{2,2,2},{2,-2,2}}};
343
344 // the number of wires:
345 Standard_Integer aNbOfWire = (sizeof(aCoords)/(sizeof(Standard_Real)*3))/aNbOfPnt;
346
347 BRepOffsetAPI_ThruSections aTSec(Standard_True,Standard_True,0.001);
348 for( Standard_Integer i = 0 ; i < aNbOfWire ; i++)
349 {
350 BRepBuilderAPI_MakePolygon aPol;
351 for( Standard_Integer j = 0 ; j < aNbOfPnt ; j++)
352 aPol.Add(gp_Pnt(aCoords[i][j][0],aCoords[i][j][1],aCoords[i][j][2]));
353
354 aPol.Close();
355 aTSec.AddWire(aPol.Wire());
356 }
357
358 aTSec.AddWire(BRepBuilderAPI_MakeWire(
359 BRepBuilderAPI_MakeEdge(gce_MakeCirc(gp_Pnt(0,0,4),gp::DZ(),5))));
360
361 aTSec.Build();
362
363 if (!aTSec.IsDone()) return;
364
365 TopoDS_Shape aShape = aTSec.Shape();
366
367 ScaleShape(aShape, 5);
368
369 // texture 1 - "alien skin"
370 displayTextured(aShape, "1");
371}
372
373
374//================================================================
375// Function : Textures_Presentation::samplePredefTexture2
376// Purpose :
377//================================================================
378void Textures_Presentation::samplePredefTexture2()
379{
380 Standard_Integer aColLength = 4;
381 Standard_Integer aRowLength = 4;
382 TColStd_Array2OfReal aZPoints(1,aColLength,1,aRowLength);
383
384 Standard_Real theZCoords [] = {{-2},{1},{1},{-1},{1},{-2},
385 {-2},{1},{-2},{-3},{-2},{-2},{-4},{-2},{-2},{-2}};
386
387 for(Standard_Integer i = 0; i < aRowLength ; i++)
388 for(Standard_Integer j = 0; j < aColLength ; j++)
389 aZPoints(i+1,j+1) = (theZCoords[i*aRowLength+j] * 50);
390
391 Standard_Real aXStep = 250, aYStep = 250;
392 Standard_Real aXBound = -450, aYBound = -300;
393
394 Handle_Geom_BSplineSurface aSurface =
395 GeomAPI_PointsToBSplineSurface(aZPoints,aXBound,aXStep,aYBound,aYStep,3,8);
396
397 TopoDS_Face aShape = BRepBuilderAPI_MakeFace(aSurface);
398
399 ScaleShape(aShape, 0.09);
400
401 // texture 9 - "clouds"
402 displayTextured(aShape, "9", Standard_True, Standard_True, 1);
403}
404*/
Open CASCADE Technology repository