OpenCascade/occt
1
0
Fork 0
mirror of https://git.dev.opencascade.org/repos/occt.git synced 2025-04-21 10:13:43 +03:00
Code

0028589: Data Exchange - Writing face with NaturalRestriction flag to IGES

Browse Source 
Add additional check for infinite surfaces

Correction of test case for issue CR28589
This commit is contained in:
ika 2017-03-24 12:24:08 +03:00 committed by bugmaster
parent bbdf3b5c66
commit 521efa926d
2 changed files with 16 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/BRepToIGES/BRepToIGES_BRShell.cxx
View File

@ -26,6 +26,7 @@
#include <Geom2d_Curve.hxx> #include <Geom2d_Curve.hxx>
#include <Geom_ConicalSurface.hxx> #include <Geom_ConicalSurface.hxx>
#include <Geom_CylindricalSurface.hxx> #include <Geom_CylindricalSurface.hxx>
#include <Geom_Plane.hxx>
#include <Geom_RectangularTrimmedSurface.hxx> #include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_SphericalSurface.hxx> #include <Geom_SphericalSurface.hxx>
#include <Geom_Surface.hxx> #include <Geom_Surface.hxx>
@ -313,10 +314,16 @@ Handle(IGESData_IGESEntity) BRepToIGES_BRShell ::TransferFace(const TopoDS_Face&
} }
} }
// protection against faces on infinite surfaces with mistaken natural restriction flag
Standard_Boolean isWholeSurface = BRep_Tool::NaturalRestriction(start);
if ((Surf->IsKind(STANDARD_TYPE(Geom_Plane)) ||
Surf->IsKind(STANDARD_TYPE(Geom_CylindricalSurface)) ||
Surf->IsKind(STANDARD_TYPE(Geom_ConicalSurface))) && !IOuter.IsNull())
isWholeSurface = Standard_False;
// returns the TrimmedSurface // returns the TrimmedSurface
// -------------------------- // --------------------------
Handle(IGESGeom_TrimmedSurface) TrimmedSurf = new IGESGeom_TrimmedSurface; Handle(IGESGeom_TrimmedSurface) TrimmedSurf = new IGESGeom_TrimmedSurface;
if (BRep_Tool::NaturalRestriction(start)) { if (isWholeSurface) {
//if face bounds and surface bounds are same, outer wire is unnecessary //if face bounds and surface bounds are same, outer wire is unnecessary
TrimmedSurf-> Init (ISurf, Standard_False, NULL, Tab); TrimmedSurf-> Init (ISurf, Standard_False, NULL, Tab);
} }

8
tests/bugs/iges/bug28589 Normal file
View File

@ -0,0 +1,8 @@
#######################################################################
# Data Exchange - Writing face with NaturalRestriction flag to IGES
#######################################################################
restore [locate_data_file bug28589.brep] face
brepiges face ${imagedir}/${casename}.igs
igesbrep ${imagedir}/${casename}.igs result *
checknbshapes result -shape 10