void occQt::testCommon()
{
gp_Ax2 anAxis;
anAxis.SetLocation(gp_Pnt(0.0, 110.0, 0.0));
TopoDS_Shape aTopoBox = BRepPrimAPI_MakeBox(anAxis, 3.0, 4.0, 5.0);
TopoDS_Shape aTopoSphere = BRepPrimAPI_MakeSphere(anAxis, 2.5);
TopoDS_Shape aCommonShape = BRepAlgoAPI_Common(aTopoBox, aTopoSphere);
gp_Trsf aTrsf;
aTrsf.SetTranslation(gp_Vec(8.0, 0.0, 0.0));
BRepBuilderAPI_Transform aTransform(aCommonShape, aTrsf);
Handle_AIS_Shape anAisBox = new AIS_Shape(aTopoBox);
Handle_AIS_Shape anAisSphere = new AIS_Shape(aTopoSphere);
Handle_AIS_Shape anAisCommonShape = new AIS_Shape(aTransform.Shape());
anAisBox->SetColor(Quantity_NOC_SPRINGGREEN);
anAisSphere->SetColor(Quantity_NOC_STEELBLUE);
anAisCommonShape->SetColor(Quantity_NOC_ROYALBLUE);
mContext->Display(anAisBox);
mContext->Display(anAisSphere);
mContext->Display(anAisCommonShape);
}
//================================================================
// 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;
}
void occQt::makeLoft()
{
// bottom wire.
TopoDS_Edge aCircleEdge = BRepBuilderAPI_MakeEdge(gp_Circ(gp_Ax2(gp_Pnt(0.0, 80.0, 0.0), gp::DZ()), 1.5));
TopoDS_Wire aCircleWire = BRepBuilderAPI_MakeWire(aCircleEdge);
// top wire.
BRepBuilderAPI_MakePolygon aPolygon;
aPolygon.Add(gp_Pnt(-3.0, 77.0, 6.0));
aPolygon.Add(gp_Pnt(3.0, 77.0, 6.0));
aPolygon.Add(gp_Pnt(3.0, 83.0, 6.0));
aPolygon.Add(gp_Pnt(-3.0, 83.0, 6.0));
aPolygon.Close();
BRepOffsetAPI_ThruSections aShellGenerator;
BRepOffsetAPI_ThruSections aSolidGenerator(true);
aShellGenerator.AddWire(aCircleWire);
aShellGenerator.AddWire(aPolygon.Wire());
aSolidGenerator.AddWire(aCircleWire);
aSolidGenerator.AddWire(aPolygon.Wire());
// translate the solid.
gp_Trsf aTrsf;
aTrsf.SetTranslation(gp_Vec(18.0, 0.0, 0.0));
BRepBuilderAPI_Transform aTransform(aSolidGenerator.Shape(), aTrsf);
Handle_AIS_Shape anAisShell = new AIS_Shape(aShellGenerator.Shape());
Handle_AIS_Shape anAisSolid = new AIS_Shape(aTransform.Shape());
anAisShell->SetColor(Quantity_NOC_OLIVEDRAB);
anAisSolid->SetColor(Quantity_NOC_PEACHPUFF);
mContext->Display(anAisShell);
mContext->Display(anAisSolid);
}