//--------------------------------------------------------------------------------------------------
public static bool RenderEdge(IDrawingRenderer renderer, TopoDS_Edge edge, bool reverse, TopoDS_Face face)
{
var res = true;
reverse ^= edge.Orientation() == TopAbs_Orientation.TopAbs_REVERSED;
double first = 0, last = 0;
if (face != null)
{
var curve = BRep_Tool.CurveOnSurface(edge, new Geom_Plane(Ax3.XOY), new TopLoc_Location(), ref first, ref last);
if (curve == null)
{
return(false);
}
res &= RenderCurve(renderer, curve, first, last, reverse);
}
else
{
if (!(edge.TShape() is BRep_TEdge tedge))
{
return(res);
}
var curves = tedge.CurvesList();
if (reverse)
{
curves.Reverse();
}
foreach (var curveOnSurface in curves.OfType <BRep_CurveOnSurface>())
{
var curve = curveOnSurface.PCurve();
first = curveOnSurface.First();
last = curveOnSurface.Last();
res &= RenderCurve(renderer, curve, first, last, reverse);
}
}
return(res);
}
//--------------------------------------------------------------------------------------------------
void _ExportEdge(TopoDS_Edge edge, bool reverse, TopoDS_Face face)
{
reverse ^= edge.Orientation() == TopAbs_Orientation.TopAbs_REVERSED;
double first = 0, last = 0;
if (face != null)
{
var curve = BRep_Tool.CurveOnSurface(edge, new Geom_Plane(Ax3.XOY), new TopLoc_Location(), ref first, ref last);
if (curve == null)
{
return;
}
AddCurve(curve, reverse, first, last);
}
else
{
var tedge = edge.TShape() as BRep_TEdge;
if (tedge == null)
{
return;
}
var curves = tedge.CurvesList();
if (reverse)
{
curves.Reverse();
}
foreach (var curveOnSurface in curves.Cast <BRep_CurveOnSurface>())
{
var curve = curveOnSurface.PCurve();
first = curveOnSurface.First();
last = curveOnSurface.Last();
AddCurve(curve, reverse, first, last);
}
}
}