CAD Exchanger versions

v3.1 [Dec 12, 2015]
May include unspecified updates, enhancements, or bug fixes.

v3.0 [Sep 5, 2015]
- Added splash screen during start up time.
ACIS format:
- Fixed import of parcur curves lying on surfaces of revolution (cones, spheres, etc).
- Added import of circles using colinear normal and major_radius axes (support is limited to cases when curve parametrization is not required).
- Added support for helix curve.
- Added recognition of curve and surface sub-types used by ASM (Autodesk Shape Manager):
exact_int_cur, int_int_cur, helix_int_cur, exp_par_cur, offset_int_cur, par_int_cur, exact_spl_sur, cyl_spl_sur, helix_spl_line, rb_blend_spl_sur, rot_spl_sur, sweep_spl_sur, sweep_sur. However helix_spl_line surface will not be converted to
resulting B-Spline surface.
- Improved import of closed (periodic) B-Spline curves with periodicity flag incorrectly
set to open.
- Fixed import of closed co-edges with p-curves on periodic surfaces and vertices not
aligned with p-curve boundaries.
- Removed redundant warning on periodic flag set on p-curves on periodic surfaces (which is valid for ACIS, even if not for other modeling kernels).

v3.0 [Jun 19, 2015]
- Added splash screen during start up time.
- Fixed import of parcur curves lying on surfaces of revolution (cones, spheres, etc).
- Added import of circles using colinear normal and major_radius axes (support is limited to cases when curve parametrization is not required).
- Added support for helix curve.
- Added recognition of curve and surface sub-types used by ASM (Autodesk Shape Manager): exact_int_cur, int_int_cur, helix_int_cur, exp_par_cur, offset_int_cur, par_int_cur, exact_spl_sur, cyl_spl_sur, helix_spl_line, rb_blend_spl_sur, rot_spl_sur, sweep_spl_sur, sweep_sur. However helix_spl_line surface will not be converted to resulting B-Spline surface.
- Improved import of closed (periodic) B-Spline curves with periodicity flag incorrectly set to open.
- Fixed import of closed co-edges with p-curves on periodic surfaces and vertices not aligned with p-curve boundaries.
- Removed redundant warning on periodic flag set on p-curves on periodic surfaces (which is valid for ACIS, even if not for other modeling kernels).

v2.5 [Mar 28, 2014]
Added support of Visual Studio 2013. Discontinued support of Visual Studio 2008.
- Added support of operation cancellation (see Base_ProgressStatus).
- Extended Netgen support - added support of 3D volume mesh generation, bounding
conditions, and export to CAE formats (Abaqus, Fluent, OpenFOAM).