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#include <SWDRAW_ToVRML.ixx>
#include <Standard_Stream.hxx>
#include <BRepMesh_FastDiscret.hxx>
#include <BRepMesh_Triangle.hxx>
#include <BRepMesh_Edge.hxx>
#include <Bnd_Box.hxx>
#include <BRepBndLib.hxx>
#include <gp_Pnt.hxx> //ied_modif_for_compil_Nov-20-1998
SWDRAW_ToVRML::SWDRAW_ToVRML ()
{
myEmissiveColorRed = 0.3;
myEmissiveColorGreen = 0.3;
myEmissiveColorBlue = 0.3;
myDiffuseColorRed = 0.3;
myDiffuseColorGreen = 0.3;
myDiffuseColorBlue = 0.5;
myTransparency = 0.0;
myAmbientIntensity = 0.3;
mySpecularColorRed = 0.7;
mySpecularColorGreen = 0.7;
mySpecularColorBlue = 0.8;
myShininess = 0.1;
myTexture = " [] " ;
myCreaseAngle = 1.57;
myDeflection = 0.005;
}
Standard_Real& SWDRAW_ToVRML::EmissiveColorRed () { return myEmissiveColorRed ; }
Standard_Real& SWDRAW_ToVRML::EmissiveColorGreen() { return myEmissiveColorGreen; }
Standard_Real& SWDRAW_ToVRML::EmissiveColorBlue () { return myEmissiveColorBlue ; }
Standard_Real& SWDRAW_ToVRML::DiffuseColorRed () { return myDiffuseColorRed ; }
Standard_Real& SWDRAW_ToVRML::DiffuseColorGreen () { return myDiffuseColorGreen ; }
Standard_Real& SWDRAW_ToVRML::DiffuseColorBlue () { return myDiffuseColorBlue ; }
Standard_Real& SWDRAW_ToVRML::Transparency () { return myTransparency ; }
Standard_Real& SWDRAW_ToVRML::AmbientIntensity () { return myAmbientIntensity ; }
Standard_Real& SWDRAW_ToVRML::SpecularColorRed () { return mySpecularColorRed ; }
Standard_Real& SWDRAW_ToVRML::SpecularColorGreen() { return mySpecularColorGreen; }
Standard_Real& SWDRAW_ToVRML::SpecularColorBlue () { return mySpecularColorBlue ; }
Standard_Real& SWDRAW_ToVRML::Shininess () { return myShininess ; }
TCollection_AsciiString& SWDRAW_ToVRML::Texture () { return myTexture ; }
Standard_Real& SWDRAW_ToVRML::CreaseAngle() { return myCreaseAngle; }
Standard_Real& SWDRAW_ToVRML::Deflection () { return myDeflection ; }
//=======================================================================
// function : ToVRML::Write
// purpose : conversion of a Shape into VRML format for 3d visualisation
//=======================================================================
Standard_Boolean SWDRAW_ToVRML::Write
(const TopoDS_Shape& aShape, const Standard_CString filename) const
{
filebuf thefile;
ostream TheFileOut(&thefile);
if (thefile.open(filename,ios::out))
{
// Creates facets from the shape
// Create (defle : Real from Standard;
// shape : Shape from TopoDS;
// angl : Real from Standard= 0.17;
// withShare : Boolean from Standard=Standard_True;
// inshape : Boolean from Standard=Standard_False;
// relative : Boolean from Standard=Standard_False;
// shapetrigu: Boolean from Standard=Standard_False)
// returns mutable Discret from BRepMesh;
Bnd_Box B;
BRepBndLib::Add(aShape, B);
Handle(BRepMesh_FastDiscret) TheDiscret =
new BRepMesh_FastDiscret(myDeflection,
aShape,
B,
0.17,
Standard_True,
Standard_False,
Standard_True,
Standard_True);
Standard_Integer i,j;
// header of the VRML file
TheFileOut << "#VRML V2.0 utf8" << endl;
TheFileOut << "Group {" << endl;
TheFileOut << " children [ " << endl;
TheFileOut << " NavigationInfo {" << endl;
TheFileOut << " type \"EXAMINE\" " << endl;
TheFileOut << " }," << endl;
TheFileOut << "Shape {" << endl;
TheFileOut << " appearance Appearance {" << endl;
TheFileOut << " texture ImageTexture {" << endl;
TheFileOut << " url " << myTexture.ToCString() << endl;
TheFileOut << " }" << endl;
TheFileOut << " material Material { " << endl;
TheFileOut << " diffuseColor " << myDiffuseColorRed << " " << myDiffuseColorGreen << " " << myDiffuseColorBlue << " " << endl;
TheFileOut << " emissiveColor " << myEmissiveColorRed << " "
<< myEmissiveColorGreen << " " << myEmissiveColorBlue << " " << endl;
TheFileOut << " transparency " << myTransparency << endl;
TheFileOut << " ambientIntensity " << myAmbientIntensity << " " << endl;
TheFileOut << " specularColor " << mySpecularColorRed << " " << mySpecularColorGreen << " " << mySpecularColorBlue << " " << endl;
TheFileOut << " shininess " <<myShininess << " " << endl;
TheFileOut << " }" << endl;
TheFileOut << " }" << endl;
TheFileOut << " geometry IndexedFaceSet {" << endl;
TheFileOut << " coord Coordinate {" << endl;
TheFileOut << " point [" << endl;
// puts the coordinates of all the vertices using the order
// given during the discretisation
for (i=1;i<=TheDiscret->NbVertices();i++)
{
gp_Pnt TheVertex=TheDiscret->Pnt(i);
TheFileOut << " "
<< TheVertex.Coord().X() << " "
<< TheVertex.Coord().Y() << " "
<< TheVertex.Coord().Z() << "," << endl;
}
TheFileOut << " ]" << endl;
TheFileOut << " }" << endl;
TheFileOut << " coordIndex [" << endl;
// retrieves all the triangles in order to draw the facets
for (j=1; j <= TheDiscret->NbTriangles(); j++)
{
BRepMesh_Triangle TheTri=TheDiscret->Triangle(j);
Standard_Integer e1,e2,e3,i1,i2,i3;
Standard_Boolean b1,b2,b3;
TheTri.Edges(e1,e2,e3,b1,b2,b3);
if (b1)
{
i1 = TheDiscret->Edge(e1).FirstNode()-1;
i2 = TheDiscret->Edge(e1).LastNode()-1;
}
else
{
i2 = TheDiscret->Edge(e1).FirstNode()-1;
i1 = TheDiscret->Edge(e1).LastNode()-1;
}
if (b2)
{
i3 = TheDiscret->Edge(e2).LastNode()-1;
}
else
{
i3 = TheDiscret->Edge(e2).FirstNode()-1;
}
TheFileOut << " " << i1 << ", " << i2 << ", " << i3 << ", -1, " << endl;
}
TheFileOut << " ]" << endl;
TheFileOut << " solid FALSE" << endl; // it is not a closed solid
TheFileOut << " creaseAngle " << myCreaseAngle << " " << endl; // for smooth shading
TheFileOut << " }" << endl;
TheFileOut << " }" << endl;
TheFileOut << " ]" << endl;
TheFileOut << "} " << endl;
}
else return Standard_False; // failure when opening file
thefile.close();
return Standard_True;
}
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