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0029290: Visualization, TKOpenGl - allow defining Light source per ZLayer
[occt.git] / samples / mfc / occtdemo / Textures / Textures_Presentation.cpp
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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();
92efcf78 86 Handle(V3d_View) aView = getViewer()->ActiveView();
7fd59977 87 aView->SetSize(ZVIEW_SIZE);
88
89 setResultTitle("Textured Shape");
90 setResultText(
91 " TopoDS_Shape aShape;" EOL
92 "" EOL
93 " // initialize aShape" EOL
94 " // aShape = ..." EOL
95 "" EOL
96 " // create a textured presentation object for aShape" EOL
92efcf78 97 " Handle(AIS_TexturedShape) aTShape = new AIS_TexturedShape(aShape);" EOL
7fd59977 98 "" EOL
99 " TCollection_AsciiString aTFileName;" EOL
100 "" EOL
101 " // initialize aTFileName with an existing texture file name" EOL
102 " // (gif, bmp, xwd, rgb, and other formats are supported)" EOL
103 " // OR with an integer value string (max = Graphic3d_Texture2D::NumberOfTextures())" EOL
104 " // which will indicate use of predefined texture of this number" EOL
105 " // aTFileName = ..." EOL
106 "" EOL
107 " aTShape->SetTextureFileName(aTFileName);" EOL
108 "" EOL
109 " // do other initialization of AIS_TexturedShape" EOL
110 " Standard_Real nRepeat;" EOL
111 " Standard_Boolean toRepeat;" EOL
112 " Standard_Boolean toScale;" EOL
113 " // initialize aRepeat, toRepeat, toScale ..." EOL
114 "" EOL
115 " aTShape->SetTextureMapOn();" EOL
116 " aTShape->SetTextureRepeat(toRepeat, nRepeat, nRepeat);" EOL
117 " aTShape->SetTextureScale(toScale);" EOL
118 " " EOL
119 " // mode 3 is \"textured\" mode of AIS_TexturedShape, " EOL
120 " // other modes will display the \"normal\", non-textured shape," EOL
121 " // in wireframe(1) or shaded(2) modes correspondingly" EOL
83da37b1 122 " aTShape->SetDisplayMode(3); " EOL);
7fd59977 123}
124
125//////////////////////////////////////////////////////////////////////
126// Sample functions
127//////////////////////////////////////////////////////////////////////
128
129
130
131
132//================================================================
133// Function : lightsOnOff
134// Purpose : 6 lights are used for a brighter demonstration of textured shapes
135// call lightsOnOff(false) before showing normal shape
136// call lightsOnOff(true) before showing textured shape
137//================================================================
138void Textures_Presentation::lightsOnOff(Standard_Boolean isOn)
139{
992ed6b3 140 static Handle(V3d_Light) aLight1 = new V3d_DirectionalLight(V3d_XnegYposZneg);
141 static Handle(V3d_Light) aLight2 = new V3d_DirectionalLight(V3d_XnegYnegZpos);
142 static Handle(V3d_Light) aLight3 = new V3d_DirectionalLight(V3d_XposYnegZpos);
143 static Handle(V3d_Light) aLight4 = new V3d_DirectionalLight(V3d_XnegYnegZneg);
144 static Handle(V3d_Light) aLight5 = new V3d_DirectionalLight(V3d_XnegYposZpos);
145 static Handle(V3d_Light) aLight6 = new V3d_DirectionalLight(V3d_XposYposZpos);
7fd59977 146
147 if (isOn)
148 {
149 getViewer()->SetLightOn(aLight1);
150 getViewer()->SetLightOn(aLight2);
151 getViewer()->SetLightOn(aLight3);
152 getViewer()->SetLightOn(aLight4);
153 getViewer()->SetLightOn(aLight5);
154 getViewer()->SetLightOn(aLight6);
155 }
156 else
157 {
158 getViewer()->SetLightOff(aLight1);
159 getViewer()->SetLightOff(aLight2);
160 getViewer()->SetLightOff(aLight3);
161 getViewer()->SetLightOff(aLight4);
162 getViewer()->SetLightOff(aLight5);
163 getViewer()->SetLightOff(aLight6);
164 }
165}
166
167//================================================================
168// Function : Textures_Presentation::displayTextured
169// display an AIS_TexturedShape based on a given shape with texture with given filename
170// filename can also be an integer value ("2", "5", etc.), in this case
171// a predefined texture from Graphic3d_NameOfTexture2D with number = this value
172// is loaded.
173// the function returns !WAIT_A_SECOND
174//================================================================
175Standard_Boolean Textures_Presentation::displayTextured(const TopoDS_Shape& aShape,
176 TCollection_AsciiString aTFileName,
177 Standard_Boolean toDisplayOriginal,
178 Standard_Boolean toScale,
179 Standard_Integer nRepeat)
180{
181 // create a textured presentation object for aShape
92efcf78 182 Handle(AIS_TexturedShape) aTShape = new AIS_TexturedShape(aShape);
7fd59977 183
184 // load texture from file if it is not an integer value
185 // integer value indicates a number of texture in predefined textures enumeration
186 if (!aTFileName.IsIntegerValue())
187 {
188 TCollection_AsciiString aTmp(aTFileName);
189 aTFileName = GetDataDir();
190 aTFileName = aTFileName + "\\" + aTmp;
191 }
192
193 aTShape->SetTextureFileName(aTFileName);
194
195 // do other initialization of AIS_TexturedShape
196 aTShape->SetTextureMapOn();
197 aTShape->SetTextureRepeat(Standard_True, nRepeat, nRepeat);
198 aTShape->SetTextureScale(toScale);
199
200 aTShape->SetDisplayMode(3); // mode 3 is "textured" mode
201
202 // output to the screen, first original shape, then textured
203 if (toDisplayOriginal)
204 {
205 lightsOnOff(Standard_False);
206
92efcf78 207 Handle(AIS_Shape) aAisShape = drawShape(aShape/*, Quantity_NOC_WHITE*/);
7fd59977 208 if (WAIT_A_SECOND) return Standard_False;
209 getAISContext()->Erase(aAisShape, Standard_False);
210 }
211
212 // show textured shape more brightly - turn on more lights
213 lightsOnOff(Standard_True);
214
215 getAISContext()->Display(aTShape, Standard_True);
216
217 return Standard_True;
218}
219
220
221//================================================================
222// Function : Textures_Presentation::loadShape
223// loads a shape from a given brep file from data dir into a given TopoDS_Shape object
224//================================================================
225Standard_Boolean Textures_Presentation::loadShape(TopoDS_Shape& aShape,
226 TCollection_AsciiString aFileName)
227{
228 // create a TopoDS_Shape -> read from a brep file
229 TCollection_AsciiString aPath(GetDataDir());
230 aPath = aPath + "\\" + aFileName;
231
232 BRep_Builder aBld;
233 Standard_Boolean isRead = BRepTools::Read (aShape, aPath.ToCString(), aBld);
234 if (!isRead)
235 {
236 aPath += " was not found. The sample can not be shown.";
237 setResultText(aPath.ToCString());
238 return Standard_False;
239 }
240
241 return Standard_True;
242}
243
244
245//================================================================
246// Function : ScaleShape
247// Purpose : scales a given TopoDS_Shape
248//================================================================
249static void ScaleShape(TopoDS_Shape& aShape, Standard_Real ScaleFactor)
250{
251 gp_Trsf aTrsf;
252 aTrsf.SetScaleFactor(ScaleFactor);
253 aShape.Location(TopLoc_Location(aTrsf));
254}
255
256//================================================================
257// Function : Textures_Presentation::samplePoints
258// Purpose :
259//================================================================
260void Textures_Presentation::sampleCustomTexture1()
261{
262 Standard_Real a = 30.0;
263 TopoDS_Shape aShape = BRepPrimAPI_MakeBox(gp_Pnt(-a/2,-a/2,-a/2),a,a,a);
264 TopTools_IndexedMapOfShape aFaces;
265 TopExp::MapShapes(aShape, TopAbs_FACE, aFaces);
266
267 // faces on faces
268 Standard_CString OurFaces[] =
269 {
270 "aev.gif","mla.gif","msv.gif","asv.gif","agn.gif","emo.gif",0
271 };
272
273 lightsOnOff(Standard_False);
274 for (Standard_Integer i = 1; i <= aFaces.Extent(); i++)
275 {
276 drawShape(aFaces(i));
277 if (WAIT_A_LITTLE) return;
278 }
279
280 getViewer()->Erase();
281
282 for (i = 1; i <= aFaces.Extent(); i++)
283 {
284 displayTextured(aFaces(i), OurFaces[i-1], Standard_False, Standard_True, 1);
285 if (WAIT_A_LITTLE) return;
286 }
287}
288
289
290//================================================================
291// Function : Textures_Presentation::sampleCustomTexture2
292// Purpose :
293//================================================================
294void Textures_Presentation::sampleCustomTexture2()
295{
296 TopoDS_Shape aShape;
297 if (loadShape(aShape, "Pump_Nut.brep"))
298 {
299 // move the shape to [0,0,0]
300 gp_Trsf aTrsf;
301 gp_Ax3 oldAx3(gp_Pnt(81,280,0), gp::DZ());
302 gp_Ax3 newAx3(gp_Pnt(0,0,0), gp::DZ());
303 aTrsf.SetDisplacement(oldAx3, newAx3);
304 aShape.Move(TopLoc_Location(aTrsf));
305
306 displayTextured(aShape, "texture1.gif");
307 }
308}
309
310
311//================================================================
312// Function : Textures_Presentation::sampleCustomTexture3
313// Purpose :
314//================================================================
315void Textures_Presentation::sampleCustomTexture3()
316{
317 TopoDS_Shape aShape;
318 if (loadShape(aShape, "Pump_TopCover.brep"))
319 {
320 ScaleShape(aShape, 0.2);
321 displayTextured(aShape, "texture2.gif");
322 }
323}
324
325/*
326//================================================================
327// Function : Textures_Presentation::samplePredefTexture1
328// Purpose :
329//================================================================
330void Textures_Presentation::samplePredefTexture1()
331{
332 // the number of points of wires:
333 const Standard_Integer aNbOfPnt = 4;
334
335 // creates arrays of coordinates of wires:
336 Standard_Real aCoords [][aNbOfPnt][3] =
337 {{{-4,0,-2},{0,4,-2},{4,0,-2},{0,-4,-2}},{{-2,-2,2},{-2,2,2},{2,2,2},{2,-2,2}}};
338
339 // the number of wires:
340 Standard_Integer aNbOfWire = (sizeof(aCoords)/(sizeof(Standard_Real)*3))/aNbOfPnt;
341
342 BRepOffsetAPI_ThruSections aTSec(Standard_True,Standard_True,0.001);
343 for( Standard_Integer i = 0 ; i < aNbOfWire ; i++)
344 {
345 BRepBuilderAPI_MakePolygon aPol;
346 for( Standard_Integer j = 0 ; j < aNbOfPnt ; j++)
347 aPol.Add(gp_Pnt(aCoords[i][j][0],aCoords[i][j][1],aCoords[i][j][2]));
348
349 aPol.Close();
350 aTSec.AddWire(aPol.Wire());
351 }
352
353 aTSec.AddWire(BRepBuilderAPI_MakeWire(
354 BRepBuilderAPI_MakeEdge(gce_MakeCirc(gp_Pnt(0,0,4),gp::DZ(),5))));
355
356 aTSec.Build();
357
358 if (!aTSec.IsDone()) return;
359
360 TopoDS_Shape aShape = aTSec.Shape();
361
362 ScaleShape(aShape, 5);
363
364 // texture 1 - "alien skin"
365 displayTextured(aShape, "1");
366}
367
368
369//================================================================
370// Function : Textures_Presentation::samplePredefTexture2
371// Purpose :
372//================================================================
373void Textures_Presentation::samplePredefTexture2()
374{
375 Standard_Integer aColLength = 4;
376 Standard_Integer aRowLength = 4;
377 TColStd_Array2OfReal aZPoints(1,aColLength,1,aRowLength);
378
379 Standard_Real theZCoords [] = {{-2},{1},{1},{-1},{1},{-2},
380 {-2},{1},{-2},{-3},{-2},{-2},{-4},{-2},{-2},{-2}};
381
382 for(Standard_Integer i = 0; i < aRowLength ; i++)
383 for(Standard_Integer j = 0; j < aColLength ; j++)
384 aZPoints(i+1,j+1) = (theZCoords[i*aRowLength+j] * 50);
385
386 Standard_Real aXStep = 250, aYStep = 250;
387 Standard_Real aXBound = -450, aYBound = -300;
388
92efcf78 389 Handle(Geom_BSplineSurface) aSurface =
7fd59977 390 GeomAPI_PointsToBSplineSurface(aZPoints,aXBound,aXStep,aYBound,aYStep,3,8);
391
392 TopoDS_Face aShape = BRepBuilderAPI_MakeFace(aSurface);
393
394 ScaleShape(aShape, 0.09);
395
396 // texture 9 - "clouds"
397 displayTextured(aShape, "9", Standard_True, Standard_True, 1);
398}
399*/
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