1. Using of the "Closed" flag was unified:
a) this flag is applicable for TopoDS_Wire and TopoDS_Shell only, because these entities may hedge an area in 2D space or a volume in 3D space correspondingly;
b) other types of TopoDS shapes are passing over this flag;
c) changing of this flag should be controlled by high-level algorithms (not BRep_Builder).
2. Implemented verification of the closedness of edges. An edge is closed if and only if its first and last vertices are the same.
3. Test cases were changed according to new behavior.
Implemented additional flag into Geom_TrimmedCurve to adjust or not the periodic curve inside the first period.
API of Geom2d_TrimmedCurve is changed according to Geom_TrimmedCurve.
Test-case for issue #24411
Restore previous behavior of BRep_Tool::IsClosed() for shells: empty shells and shells containing only INTERNAL or EXTERNAL sub-shapes are considered non-closed.
Method BRep_Tool::IsClosed() extended to analyze closure of wires in addition to shells and solids.
External and Internal edges and vertices are ignored in this check.
Analysis of compounds is disabled.
Update of flag Closed according to actual state is added in most places where new shells are constructed.
Draw-command and test case for issue CR25202
MAIN CHANGES:
FixAddNaturalBound: the boundaries of "natural bound addition" are restricted: a face, that does not contains an outer wire, should not have any infinite UV boundaries due to new face building (with using a surface) requires specified UV boundaries.
FixAddNaturalBound: myResult is updated in FixAddNaturalBound when the method creates a new face with natural boundary. myResult is required to be updated for next "fix small-area wires" algorithm
IsPeriodicConicalLoop: incorrect working BRepTools_WireExplorer was replaced on TopoDS_Iterator.
a natural bound is added to all the faces are constructed with UV-periodical surfaces (not only sphere and torus; e.g., closed b-splines)
other:
ShapeAnalysis: ReverceSeq renamed to ReverseSeq
BRep_Tool Pnt and Tolerance has the check for null TShape
Test cases for issue CR24249
required null checks were added
test cases were corrected according to their new behavior
Correction test case for issue CR24249
License statement text corrected; compiler warnings caused by Bison 2.41 disabled for MSVC; a few other compiler warnings on 54-bit Windows eliminated by appropriate type cast
Wrong license statements corrected in several files.
Copyright and license statements added in XSD and GLSL files.
Copyright year updated in some files.
Obsolete documentation files removed from DrawResources.
