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0026369: Modeling Data - Geom_OffsetSurface direction is wrong for indirect conical surface

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This commit is contained in:
apl 2015-07-06 11:30:57 +03:00 committed by bugmaster
parent a52c06d5f6
commit 4052fe71d9
2 changed files with 55 additions and 9 deletions
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33
src/Geom/Geom_OffsetSurface.cxx
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@ -1625,14 +1625,31 @@ Handle(Geom_Surface) Geom_OffsetSurface::Surface() const
{
Handle(Geom_ConicalSurface) C =
Handle(Geom_ConicalSurface)::DownCast(Base);
Standard_Real Alpha = C->SemiAngle();
Standard_Real Radius = C->RefRadius() + offsetValue * Cos(Alpha);
gp_Ax3 Axis = C->Position();
if ( Radius >= 0.) {
gp_Vec Z( Axis.Direction());
Z *= - offsetValue * Sin(Alpha);
Axis.Translate(Z);
Result = new Geom_ConicalSurface(Axis, Alpha, Radius);
gp_Ax3 anAxis = C->Position();
Standard_Boolean isDirect = anAxis.Direct();
Standard_Real anAlpha = C->SemiAngle();
Standard_Real aRadius;
if (isDirect)
{
aRadius = C->RefRadius() + offsetValue * Cos (anAlpha);
}
else
{
aRadius = C->RefRadius() - offsetValue * Cos (anAlpha);
}
if (aRadius >= 0.)
{
gp_Vec aZ (anAxis.Direction());
if (isDirect)
{
aZ *= -offsetValue * Sin (anAlpha);
}
else
{
aZ *= offsetValue * Sin (anAlpha);
}
anAxis.Translate (aZ);
Result = new Geom_ConicalSurface (anAxis, anAlpha, aRadius);
}
else
{

29
tests/bugs/moddata_3/bug26369 Normal file
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@ -0,0 +1,29 @@
puts "============"
puts "CR26369"
puts "============"
puts ""
###################################################################################
# Modeling Data - Geom_OffsetSurface direction is wrong for indirect conical surface
###################################################################################
restore [locate_data_file bug26369_conicsurf.brep] conic_face
mksurface conic_surf conic_face
offset conic_surf_offset conic_surf 0.05
mkface conic_face_offset conic_surf_offset
set sprops_s [sprops conic_face_offset]
set cog_x -0.00408684
set cog_y 0.00408684
set cog_z -0.03213030
set cog_tol 0.00000010
regexp {X += +([-0-9.+eE]+)} $sprops_s full res_cog_x
regexp {Y += +([-0-9.+eE]+)} $sprops_s full res_cog_y
regexp {Z += +([-0-9.+eE]+)} $sprops_s full res_cog_z
if { ([expr abs($cog_x - $res_cog_x)] > $cog_tol)
|| ([expr abs($cog_y - $res_cog_y)] > $cog_tol)
|| ([expr abs($cog_z - $res_cog_z)] > $cog_tol) } {
puts "Error: The center of gravity for offset of conical surface is wrong."
}