Integration of OCCT 6.5.0 from SVN

samples/mfc/occtdemo/TexturesExt/TexturesExt_Presentation.cpp

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+// TexturesExt_Presentation.cpp: implementation of the TexturesExt_Presentation class.
+// Creation of textural presentation of shape
+//////////////////////////////////////////////////////////////////////
+
+#include "stdafx.h"
+#include "TexturesExt_Presentation.h"
+
+#include <TopExp.hxx>
+#include <TopTools_IndexedMapOfShape.hxx>
+#include <BRepBuilderAPI_MakeFace.hxx>
+#include <AIS_TexturedShape.hxx>
+#include <BRepTools.hxx>
+#include <Graphic3d_Texture2D.hxx>
+#include <BRep_Tool.hxx>
+#include <TopoDS.hxx>
+#include <BRepBuilderAPI_Transform.hxx>
+#include <BRep_Builder.hxx>
+#include <BRepTools.hxx>
+#include <Geom_Surface.hxx>
+#include <TopoDS_Face.hxx>
+#include <V3d_DirectionalLight.hxx>
+
+#define DISP(OBJ) getAISContext()->Display((OBJ), Standard_False)
+
+// Initialization of global variable with an instance of this class
+OCCDemo_Presentation* OCCDemo_Presentation::Current = new TexturesExt_Presentation;
+
+// Initialization of array of samples
+const TexturesExt_Presentation::PSampleFuncType TexturesExt_Presentation::SampleFuncs[] =
+{
+  &TexturesExt_Presentation::sampleBottle,
+  &TexturesExt_Presentation::sampleTerrain,
+  &TexturesExt_Presentation::sampleKitchen
+};
+
+#ifdef WNT
+ #define EOL "\r\n"
+#else
+ #define EOL "\n"
+#endif
+
+#define ZVIEW_SIZE 100
+
+//////////////////////////////////////////////////////////////////////
+// Construction/Destruction
+//////////////////////////////////////////////////////////////////////
+
+TexturesExt_Presentation::TexturesExt_Presentation()
+{
+  myNbSamples = sizeof(SampleFuncs)/sizeof(PSampleFuncType);
+  setName ("Textured Shapes");
+}
+
+//////////////////////////////////////////////////////////////////////
+// Sample execution
+//////////////////////////////////////////////////////////////////////
+
+void TexturesExt_Presentation::DoSample()
+{
+  getAISContext()->EraseAll();
+  if (myIndex >=0 && myIndex < myNbSamples)
+  {
+    // turn lights on for terrain sample
+    lightsOnOff(myIndex==1);
+    (this->*SampleFuncs[myIndex])();
+  }
+}
+
+void TexturesExt_Presentation::Init()
+{
+  // initialize v3d_view so it displays TexturesExt well
+  getViewer()->InitActiveViews();
+  Handle_V3d_View aView = getViewer()->ActiveView();
+  aView->SetSurfaceDetail(V3d_TEX_ALL);
+  aView->SetSize(ZVIEW_SIZE);
+
+  setResultTitle("Textured Shape");
+  setResultText(
+    "  TopoDS_Shape aShape;" EOL
+    "" EOL
+    "  // initialize aShape" EOL
+    "  // aShape = ..." EOL
+    "" EOL
+    "  // create a textured presentation object for aShape" EOL
+    "  Handle_AIS_TexturedShape aTShape = new AIS_TexturedShape(aShape);" EOL
+    "" EOL
+    "  TCollection_AsciiString aTFileName;" EOL
+    "" EOL
+    "  // initialize aTFileName with an existing texture file name" EOL
+    "  // (gif, bmp, xwd, rgb, and other formats are supported)" EOL
+    "  // OR with an integer value string (max = Graphic3d_Texture2D::NumberOfTexturesExt())" EOL
+    "  // which will indicate use of predefined texture of this number" EOL
+    "  // aTFileName = ..." EOL
+    "" EOL
+    "  aTShape->SetTextureFileName(aTFileName);" EOL
+    "" EOL
+    "  // do other initialization of AIS_TexturedShape" EOL
+    "  Standard_Real nRepeat;" EOL
+    "  Standard_Boolean toRepeat;" EOL
+    "  Standard_Boolean toScale;" EOL
+    "  // initialize aRepeat, toRepeat, toScale ..." EOL
+    "" EOL
+    "  aTShape->SetTextureMapOn();" EOL
+    "  aTShape->SetTextureRepeat(toRepeat, nRepeat, nRepeat);" EOL
+    "  aTShape->SetTexturesExtcale(toScale);" EOL
+    "  " EOL
+    "  // mode 3 is \"textured\" mode of AIS_TexturedShape, " EOL
+    "  // other modes will display the \"normal\", non-textured shape," EOL
+    "  // in wireframe(1) or shaded(2) modes correspondingly" EOL
+    "  aTShape->SetDisplayMode(3); " EOL
+    "" EOL
+    "  // V3d_TEX_ALL constant must be set as surface detail" EOL
+    "  // for current view to see AIS_TexturedShape" EOL
+    "  myCurrentView->SetSurfaceDetail(V3d_TEX_ALL);" EOL);
+}
+
+//////////////////////////////////////////////////////////////////////
+// Sample functions
+//////////////////////////////////////////////////////////////////////
+//================================================================
+// Function : TexturesExt_Presentation::Texturize
+// display an AIS_TexturedShape based on a given shape with texture with given filename
+// filename can also be an integer value ("2", "5", etc.), in this case
+// a predefined texture from Graphic3d_NameOfTexture2D with number = this value
+// is loaded.
+//================================================================
+Handle_AIS_TexturedShape TexturesExt_Presentation::Texturize(const TopoDS_Shape& aShape,
+                                                        TCollection_AsciiString aTFileName,
+                                                        Standard_Real toScaleU,
+                                                        Standard_Real toScaleV,
+                                                        Standard_Real toRepeatU,
+                                                        Standard_Real toRepeatV,
+                                                        Standard_Real originU,
+                                                        Standard_Real originV)
+{
+  // create a textured presentation object for aShape
+  Handle_AIS_TexturedShape aTShape = new AIS_TexturedShape(aShape);
+
+  // load texture from file if it is not an integer value
+  // integer value indicates a number of texture in predefined TexturesExt enumeration
+  if (!aTFileName.IsIntegerValue())
+  {
+    TCollection_AsciiString aTmp(aTFileName);
+    aTFileName = GetDataDir();
+    aTFileName = aTFileName + "\\" + aTmp;
+  }
+
+  aTShape->SetTextureFileName(aTFileName);
+
+  // do other initialization of AIS_TexturedShape
+  aTShape->SetTextureMapOn();
+  aTShape->SetTextureScale(Standard_True, toScaleU, toScaleV);
+  aTShape->SetTextureRepeat(Standard_True, toRepeatU, toRepeatV);
+  aTShape->SetTextureOrigin(Standard_True, originU, originV);
+  
+  aTShape->SetDisplayMode(3); // mode 3 is "textured" mode
+
+  return aTShape;
+}
+
+
+//================================================================
+// Function : TexturesExt_Presentation::loadShape
+// loads a shape from a given brep file from data dir into a given TopoDS_Shape object
+//================================================================
+Standard_Boolean TexturesExt_Presentation::loadShape(TopoDS_Shape& aShape, 
+                                         TCollection_AsciiString aFileName)
+{
+  // create a TopoDS_Shape -> read from a brep file
+  TCollection_AsciiString aPath(GetDataDir());
+  aPath = aPath + "\\" + aFileName;
+
+  BRep_Builder aBld;
+  Standard_Boolean isRead = BRepTools::Read (aShape, aPath.ToCString(), aBld);
+  if (!isRead)
+  {
+    aPath += " was not found.  The sample can not be shown.";
+    setResultText(aPath.ToCString());
+    return Standard_False;
+  }
+
+  return Standard_True;
+}
+
+//================================================================
+// Function : lightsOnOff
+// Purpose  : 6 lights are used for a brighter demonstration of textured shapes
+//            call lightsOnOff(false) before showing normal shape
+//            call lightsOnOff(true)  before showing textured shape
+//================================================================
+void TexturesExt_Presentation::lightsOnOff(Standard_Boolean isOn)
+{
+  static Handle_V3d_Light aLight1 = new V3d_DirectionalLight(getViewer(), V3d_XnegYposZneg);
+  static Handle_V3d_Light aLight2 = new V3d_DirectionalLight(getViewer(), V3d_XnegYnegZpos);
+  static Handle_V3d_Light aLight3 = new V3d_DirectionalLight(getViewer(), V3d_XposYnegZpos);
+  static Handle_V3d_Light aLight4 = new V3d_DirectionalLight(getViewer(), V3d_XnegYnegZneg);
+  static Handle_V3d_Light aLight5 = new V3d_DirectionalLight(getViewer(), V3d_XnegYposZpos);
+  static Handle_V3d_Light aLight6 = new V3d_DirectionalLight(getViewer(), V3d_XposYposZpos);
+
+  if (isOn)
+  {
+    getViewer()->SetLightOn(aLight1);
+    getViewer()->SetLightOn(aLight2);
+    getViewer()->SetLightOn(aLight3);
+    getViewer()->SetLightOn(aLight4);
+    getViewer()->SetLightOn(aLight5);
+    getViewer()->SetLightOn(aLight6);
+  }
+  else 
+  {
+    getViewer()->SetLightOff(aLight1);
+    getViewer()->SetLightOff(aLight2);
+    getViewer()->SetLightOff(aLight3);
+    getViewer()->SetLightOff(aLight4);
+    getViewer()->SetLightOff(aLight5);
+    getViewer()->SetLightOff(aLight6);
+  }
+}
+
+//================================================================
+// Function : TexturesExt_Presentation::sampleBottle
+// Purpose  : 
+//================================================================
+void TexturesExt_Presentation::sampleBottle()
+{  
+  TopoDS_Shape aShape;
+  if (!loadShape(aShape, "bottle.brep")) 
+    return;
+
+  // resize and move the shape to the center of the viewer
+  gp_Trsf aTrsf;
+  aTrsf.SetScale(gp_Pnt(0,0,0), 0.8);
+  aShape.Move(TopLoc_Location(aTrsf));
+  aTrsf.SetTranslation(gp_Pnt(0,0,0),gp_Pnt(0,0,-20));
+  aShape.Move(TopLoc_Location(aTrsf));
+
+  TopTools_IndexedMapOfShape aFaces;
+  TopExp::MapShapes(aShape, TopAbs_FACE, aFaces);
+
+  // display original shape in shaded display mode
+  Handle_AIS_Shape aShapeIO = drawShape(aShape, Graphic3d_NOM_BRASS, Standard_False);
+  getAISContext()->SetDisplayMode(aShapeIO, AIS_Shaded, Standard_False);
+  DISP(aShapeIO);
+
+  Handle_AIS_TexturedShape aTFace1 = Texturize(aFaces(16), "carrelage1.gif", 1, 1, 3, 2);
+  DISP(aTFace1);
+
+  Handle_AIS_TexturedShape aTFace2 = Texturize(aFaces(21), "carrelage1.gif", 1, 1, 3, 2);
+  DISP(aTFace2);
+
+  getViewer()->Update();
+}
+
+
+//================================================================
+// Function : TexturesExt_Presentation::sampleLand
+// Purpose  : 
+//================================================================
+void TexturesExt_Presentation::sampleTerrain()
+{
+  TopoDS_Shape aShape;
+  if (!loadShape(aShape, "terrain.brep"))
+    return;
+
+  // a part of the landscape is textured
+  TopTools_IndexedMapOfShape aFaces;
+  TopExp::MapShapes(aShape, TopAbs_FACE, aFaces);
+
+//  TopLoc_Location aLoc;
+//  Handle_Geom_Surface aSur = BRep_Tool::Surface(TopoDS::Face(aFaces(1)), aLoc);
+//  Standard_Real u1,u2,v1,v2;
+//  aSur->Bounds(u1,u2,v1,v2);
+//  gp_Pnt aPnt = aSur->Value(u1, v1);
+  gp_Pnt aPnt(82100,80300,10940);// point at u1,v1
+  // resize and move the shape to the center of the viewer
+  
+  gp_Trsf aMoveTrsf;
+  gp_Ax3 New(gp_Pnt(-30,-30, 0),gp_Dir(0,0,1));
+  gp_Ax3 Current(aPnt,gp_Dir(0,0,1));
+  aMoveTrsf.SetDisplacement(Current, New);
+
+  gp_Trsf aScaleTrsf;
+  aScaleTrsf.SetScale(aPnt,0.0075);
+
+  BRepBuilderAPI_Transform aTransform(aMoveTrsf*aScaleTrsf);
+
+  aTransform.Perform(aFaces(1));
+  aShape = aTransform;
+
+  getAISContext()->Display(Texturize(aShape, "terrain.gif"));
+}
+
+
+//================================================================
+// Function : moveScale
+// Purpose  : move a shape a little left and scale it to 15%.
+//================================================================
+static void moveScale(TopoDS_Shape& aShape)
+{
+  gp_Trsf aMoveTrsf;
+  gp_Ax3 New(gp_Pnt(-30,-30, -10),gp_Dir(0,0,1));
+  gp_Ax3 Current(gp_Pnt(0,0,0),gp_Dir(0,0,1));
+  aMoveTrsf.SetDisplacement(Current, New);
+
+  gp_Trsf aScaleTrsf;
+  aScaleTrsf.SetScale(gp_Pnt(0,0,0),0.15);
+
+  BRepBuilderAPI_Transform aTransform(aMoveTrsf*aScaleTrsf);
+
+  aTransform.Perform(aShape);
+  aShape = aTransform;
+}
+
+//================================================================
+// Function : TexturesExt_Presentation::sampleKitchen
+// Purpose  : kitchen with texturized items in it.
+//================================================================
+void TexturesExt_Presentation::sampleKitchen()
+{
+  TopoDS_Shape aShape;
+
+  if (!loadShape(aShape, "Kitchen\\Room.brep"))
+    return;
+
+  gp_Trsf aTrsf;
+  gp_Ax3 NewCoordSystem (gp_Pnt(-1,-1, -1),gp_Dir(0,0,1));
+  gp_Ax3 CurrentCoordSystem(gp_Pnt(0,0,0),gp_Dir(0,0,1));
+  aTrsf.SetDisplacement(CurrentCoordSystem, NewCoordSystem);
+  aShape.Location(TopLoc_Location(aTrsf));
+
+  moveScale(aShape);
+
+  // draw kitchen room whithout one wall (to better see the insides)
+  TopTools_IndexedMapOfShape aFaces;
+  TopExp::MapShapes(aShape, TopAbs_FACE, aFaces);  
+  Standard_Integer nbFaces = aFaces.Extent();
+
+  // create a wooden kitchen floor
+  // the floor's face will be textured with texture from chataignier.gif
+  DISP(Texturize(aFaces(5),"plancher.gif",1,1,2,1));
+
+  // texturize other faces of the room with texture from wallpaper.gif (walls)
+  DISP(Texturize(aFaces(1),"wallpaper.gif",1,1,8,6));
+  DISP(Texturize(aFaces(3),"wallpaper.gif",1,1,8,6));
+  DISP(Texturize(aFaces(4),"wallpaper.gif",1,1,8,6));
+
+//  DISP(drawShape(aFaces(1), Quantity_NOC_LIGHTPINK, Standard_False));
+//  DISP(drawShape(aFaces(3), Quantity_NOC_LIGHTPINK, Standard_False));
+//  DISP(drawShape(aFaces(4), Quantity_NOC_LIGHTPINK, Standard_False));
+
+  // texturize furniture items with "wooden" texture
+  if (loadShape(aShape, "Kitchen\\MODERN_Table_1.brep"))
+  {
+    moveScale(aShape);
+    DISP(Texturize(aShape, "chataignier.gif"));
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_Chair_1.brep"))
+  {
+    moveScale(aShape);
+    DISP(Texturize(aShape, "chataignier.gif"));
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_Cooker_1.brep"))
+  {
+    moveScale(aShape);
+
+    aFaces.Clear();
+    TopExp::MapShapes(aShape, TopAbs_FACE, aFaces);  
+    nbFaces = aFaces.Extent();
+
+    for (Standard_Integer i = 1; i <= nbFaces; i++)
+    {
+      if (i >= 59)
+        DISP(drawShape(aFaces(i), Graphic3d_NOM_STEEL, Standard_False));
+      else if (i >= 29)
+        DISP(drawShape(aFaces(i), Graphic3d_NOM_ALUMINIUM, Standard_False));
+      else if (i == 28)
+        DISP(Texturize(aFaces(i), "cookerplate.gif"));
+      else  
+        DISP(Texturize(aFaces(i), "chataignier.gif"));
+    }
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_Cooker_1_opened.brep"))
+  {
+    moveScale(aShape);
+    DISP(Texturize(aShape, "chataignier.gif"));
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_Exhaust_1.brep"))
+  {
+    moveScale(aShape);
+    DISP(drawShape(aShape, Graphic3d_NOM_STONE, Standard_False));
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_MVCooker_1.brep"))
+  {
+    moveScale(aShape);
+    DISP(drawShape(aShape, Graphic3d_NOM_SILVER, Standard_False));
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_MVCooker_1_opened.brep"))
+  {
+    moveScale(aShape);
+    DISP(drawShape(aShape, Graphic3d_NOM_SILVER, Standard_False));
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_Sink_1.brep"))
+  {
+    moveScale(aShape);
+
+    aFaces.Clear();
+    TopExp::MapShapes(aShape, TopAbs_FACE, aFaces);  
+    nbFaces = aFaces.Extent();
+
+    for (Standard_Integer i = 1; i <= nbFaces; i++)
+    {
+      if (i < 145)
+        DISP(drawShape(aFaces(i), Graphic3d_NOM_ALUMINIUM, Standard_False));
+      else if (i == 145)
+        DISP(Texturize(aFaces(i), "cookerplate.gif"));
+      else  
+        DISP(Texturize(aFaces(i), "chataignier.gif"));
+    }
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_Sink_1_opened.brep"))
+  {
+    moveScale(aShape);
+    DISP(Texturize(aShape, "chataignier.gif"));
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_Refrigerator_1.brep"))
+  {
+    moveScale(aShape);
+    DISP(drawShape(aShape, Graphic3d_NOM_CHROME, Standard_False));
+  }
+  if (loadShape(aShape, "Kitchen\\MODERN_Refrigerator_1_opened.brep"))
+  {
+    moveScale(aShape);
+    DISP(drawShape(aShape, Graphic3d_NOM_CHROME, Standard_False));
+  }
+
+  getViewer()->Update();
+}