void VisualSceneSpecPoints :: BuildScene (int zoomall)
{
if (!mesh)
{
VisualScene::BuildScene(zoomall);
return;
}
Box3d box;
if (mesh->GetNSeg())
{
box.SetPoint (mesh->Point (mesh->LineSegment(1)[0]));
for (int i = 1; i <= mesh->GetNSeg(); i++)
{
box.AddPoint (mesh->Point (mesh->LineSegment(i)[0]));
box.AddPoint (mesh->Point (mesh->LineSegment(i)[1]));
}
}
else if (specpoints.Size() >= 2)
{
box.SetPoint (specpoints.Get(1).p);
for (int i = 2; i <= specpoints.Size(); i++)
box.AddPoint (specpoints.Get(i).p);
}
else
{
box = Box3d (Point3d (0,0,0), Point3d (1,1,1));
}
if (zoomall == 2 && ((vispar.centerpoint >= 1 && vispar.centerpoint <= mesh->GetNP()) ||
vispar.use_center_coords))
{
if (vispar.use_center_coords)
{
center.X() = vispar.centerx; center.Y() = vispar.centery; center.Z() = vispar.centerz;
}
else
center = mesh->Point (vispar.centerpoint);
}
else
center = Center (box.PMin(), box.PMax());
rad = 0.5 * Dist (box.PMin(), box.PMax());
CalcTransformationMatrices();
}
void VisualSceneOCCGeometry :: BuildScene (int zoomall)
{
if (occgeometry -> changed == OCCGEOMETRYVISUALIZATIONFULLCHANGE)
{
occgeometry -> BuildVisualizationMesh (vispar.occdeflection);
center = occgeometry -> Center();
rad = occgeometry -> GetBoundingBox().Diam() / 2;
if (vispar.occzoomtohighlightedentity)
{
bool hilite = false;
bool hiliteonepoint = false;
Bnd_Box bb;
for (int i = 1; i <= occgeometry->fmap.Extent(); i++)
if (occgeometry->fvispar[i-1].IsHighlighted())
{
hilite = true;
BRepBndLib::Add (occgeometry->fmap(i), bb);
}
for (int i = 1; i <= occgeometry->emap.Extent(); i++)
if (occgeometry->evispar[i-1].IsHighlighted())
{
hilite = true;
BRepBndLib::Add (occgeometry->emap(i), bb);
}
for (int i = 1; i <= occgeometry->vmap.Extent(); i++)
if (occgeometry->vvispar[i-1].IsHighlighted())
{
hiliteonepoint = true;
BRepBndLib::Add (occgeometry->vmap(i), bb);
}
if (hilite || hiliteonepoint)
{
double x1,y1,z1,x2,y2,z2;
bb.Get (x1,y1,z1,x2,y2,z2);
Point<3> p1 = Point<3> (x1,y1,z1);
Point<3> p2 = Point<3> (x2,y2,z2);
Box<3> boundingbox(p1,p2);
center = boundingbox.Center();
if (hiliteonepoint)
rad = occgeometry -> GetBoundingBox().Diam() / 100;
else
rad = boundingbox.Diam() / 2;
}
}
CalcTransformationMatrices();
}
// Clear lists
for (int i = 1; i <= linelists.Size(); i++)
glDeleteLists (linelists.Elem(i), 1);
linelists.SetSize(0);
for (int i = 1; i <= trilists.Size(); i++)
glDeleteLists (trilists.Elem(i), 1);
trilists.SetSize(0);
// Total wireframe
linelists.Append (glGenLists (1));
glNewList (linelists.Last(), GL_COMPILE);
for (int i = 1; i <= occgeometry->emap.Extent(); i++)
{
TopoDS_Edge edge = TopoDS::Edge(occgeometry->emap(i));
if (BRep_Tool::Degenerated(edge)) continue;
if (occgeometry->evispar[i-1].IsHighlighted()) continue;
Handle(Poly_PolygonOnTriangulation) aEdgePoly;
Handle(Poly_Triangulation) T;
TopLoc_Location aEdgeLoc;
BRep_Tool::PolygonOnTriangulation(edge, aEdgePoly, T, aEdgeLoc);
if(aEdgePoly.IsNull())
{
(*testout) << "visualizing edge " << occgeometry->emap.FindIndex (edge)
<< " without using the occ visualization triangulation" << endl;
double s0, s1;
Handle(Geom_Curve) c = BRep_Tool::Curve(edge, s0, s1);
glBegin (GL_LINE_STRIP);
for (int i = 0; i<=50; i++)
{
gp_Pnt p = c->Value (s0 + i*(s1-s0)/50.0);
glVertex3f (p.X(),p.Y(),p.Z());
}
glEnd ();
continue;
}
int nbnodes = aEdgePoly -> NbNodes();
glBegin (GL_LINE_STRIP);
for (int j = 1; j <= nbnodes; j++)
{
gp_Pnt p = (T -> Nodes())(aEdgePoly->Nodes()(j)).Transformed(aEdgeLoc);
glVertex3f (p.X(), p.Y(), p.Z());
}
glEnd ();
}
glEndList ();
// Highlighted edge list
linelists.Append (glGenLists (1));
glNewList (linelists.Last(), GL_COMPILE);
for (int i = 1; i <= occgeometry->emap.Extent(); i++)
if (occgeometry->evispar[i-1].IsHighlighted())
{
TopoDS_Edge edge = TopoDS::Edge(occgeometry->emap(i));
if (BRep_Tool::Degenerated(edge)) continue;
Handle(Poly_PolygonOnTriangulation) aEdgePoly;
Handle(Poly_Triangulation) T;
TopLoc_Location aEdgeLoc;
BRep_Tool::PolygonOnTriangulation(edge, aEdgePoly, T, aEdgeLoc);
if(aEdgePoly.IsNull())
{
(*testout) << "visualizing edge " << occgeometry->emap.FindIndex (edge)
<< " without using the occ visualization triangulation" << endl;
double s0, s1;
Handle(Geom_Curve) c = BRep_Tool::Curve(edge, s0, s1);
glBegin (GL_LINE_STRIP);
for (int i = 0; i<=50; i++)
{
gp_Pnt p = c->Value (s0 + i*(s1-s0)/50.0);
glVertex3f (p.X(),p.Y(),p.Z());
}
glEnd ();
continue;
}
int nbnodes = aEdgePoly -> NbNodes();
glBegin (GL_LINE_STRIP);
for (int j = 1; j <= nbnodes; j++)
{
gp_Pnt p = (T -> Nodes())(aEdgePoly->Nodes()(j)).Transformed(aEdgeLoc);
glVertex3f (p.X(), p.Y(), p.Z());
}
glEnd ();
}
glEndList ();
// display faces
trilists.Append (glGenLists (1));
glNewList (trilists.Last(), GL_COMPILE);
for (int i = 1; i <= occgeometry->fmap.Extent(); i++)
{
if (!occgeometry->fvispar[i-1].IsVisible()) continue;
glLoadName (i);
float mat_col[4];
mat_col[3] = 1;
TopoDS_Face face = TopoDS::Face(occgeometry->fmap(i));
if (!occgeometry->fvispar[i-1].IsHighlighted())
{
// Philippose - 30/01/2009
// OpenCascade XDE Support
Quantity_Color face_colour;
// Philippose - 23/02/2009
// Check to see if colours have been extracted first!!
// Forum bug-fox (Jean-Yves - 23/02/2009)
if(!(occgeometry->face_colours.IsNull())
&& (occgeometry->face_colours->GetColor(face,XCAFDoc_ColorSurf,face_colour)))
{
mat_col[0] = face_colour.Red();
mat_col[1] = face_colour.Green();
mat_col[2] = face_colour.Blue();
}
else
{
mat_col[0] = 0.0;
mat_col[1] = 1.0;
mat_col[2] = 0.0;
}
}
else
{
mat_col[0] = 0.8;
mat_col[1] = 0.2;
mat_col[2] = 0.2;
}
glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, mat_col);
TopLoc_Location loc;
Handle(Geom_Surface) surf = BRep_Tool::Surface (face);
BRepAdaptor_Surface sf(face, Standard_False);
BRepLProp_SLProps prop(sf, 1, 1e-5);
Handle(Poly_Triangulation) triangulation = BRep_Tool::Triangulation (face, loc);
if (triangulation.IsNull())
{
cout << "cannot visualize face " << i << endl;
occgeometry->fvispar[i-1].SetNotDrawable();
continue;
}
gp_Pnt2d uv;
gp_Pnt pnt;
gp_Vec n;
glBegin (GL_TRIANGLES);
int ntriangles = triangulation -> NbTriangles();
for (int j = 1; j <= ntriangles; j++)
{
Poly_Triangle triangle = (triangulation -> Triangles())(j);
gp_Pnt p[3];
for (int k = 1; k <= 3; k++)
p[k-1] = (triangulation -> Nodes())(triangle(k)).Transformed(loc);
for (int k = 1; k <= 3; k++)
{
uv = (triangulation -> UVNodes())(triangle(k));
prop.SetParameters (uv.X(), uv.Y());
// surf->D0 (uv.X(), uv.Y(), pnt);
if (prop.IsNormalDefined())
n = prop.Normal();
else
{
(*testout) << "Visualization of face " << i
<< ": Normal vector not defined" << endl;
// n = gp_Vec (0,0,0);
gp_Vec a(p[0],p[1]);
gp_Vec b(p[0],p[2]);
n = b^a;
}
if (face.Orientation() == TopAbs_REVERSED) n *= -1;
glNormal3f (n.X(), n.Y(), n.Z());
glVertex3f (p[k-1].X(), p[k-1].Y(), p[k-1].Z());
}
}
glEnd ();
}
glEndList ();
}
void VisualSceneGeometry :: BuildScene (int zoomall)
{
VisualScene::BuildScene(zoomall); // setting light ...
Box<3> box;
int hasp = 0;
for (int i = 0; i < geometry->GetNTopLevelObjects(); i++)
{
const TriangleApproximation & ta =
*geometry->GetTriApprox(i);
if (!&ta) continue;
for (int j = 0; j < ta.GetNP(); j++)
{
if (hasp)
box.Add (ta.GetPoint(j));
else
{
hasp = 1;
box.Set (ta.GetPoint(j));
}
}
}
if (hasp)
{
center = box.Center();
rad = box.Diam() / 2;
}
else
{
center = Point3d(0,0,0);
rad = 1;
}
CalcTransformationMatrices();
for (int i = 0; i < trilists.Size(); i++)
glDeleteLists (trilists[i], 1);
trilists.SetSize(0);
for (int i = 0; i < geometry->GetNTopLevelObjects(); i++)
{
trilists.Append (glGenLists (1));
glNewList (trilists.Last(), GL_COMPILE);
glEnable (GL_NORMALIZE);
const TriangleApproximation & ta =
*geometry->GetTriApprox(i);
if (&ta)
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_DOUBLE, 0, &ta.GetPoint(0)(0));
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_DOUBLE, 0, &ta.GetNormal(0)(0));
for (int j = 0; j < ta.GetNT(); j++)
glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_INT, & (ta.GetTriangle(j)[0]));
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
/*
for (int j = 0; j < ta.GetNT(); j++)
{
glBegin (GL_TRIANGLES);
for (int k = 0; k < 3; k++)
{
int pi = ta.GetTriangle(j)[k];
glNormal3dv (ta.GetNormal(pi));
glVertex3dv (ta.GetPoint(pi));
cout << "v = " << ta.GetPoint(pi) << endl;
}
glEnd ();
}
*/
}
glEndList ();
}
}
