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6 Commits

Author SHA1 Message Date
msv
8109385697 0027362: Meshing performance
1) BRepMesh_FastDiscretFace.cxx:
- exclude planes from procedure of inserting internal points.
- localize declaration of the container aNewVertices in each method where it is needed.
- correct the logic of the method insertInternalVerticesOther, so that to separate the processes of removing extra points and addition of new points in different cycles, thus making the code more clear and in addition stable.
- insert useful output of intermediate mesh to a file in control() method for debug purposes (with definition DEBUG_MESH).

2) Add global functions MeshTest_DrawTriangles and MeshTest_DrawLinks to draw mesh data in debug session.

3) BRepMesh_FastDiscret:
- in the method Add calculations of deflections have been simplified for non-relative mode.
- replace the attribute MinDist with Deflection in EdgeAttributes structure. Correct its computation so that later to store this value as deflection of the polygon.

4) Make protection against exception in the method BRepMesh_Delaun::addTriangle() when an added triangle creates a third connection of a mesh edge.

5) BRepMesh_EdgeTessellator.cxx, BRepMesh_EdgeTessellationExtractor.cxx: use Geom2dAdaptor_Curve in order to use b-spline cache while computing value on a curve.

6) In BndLib_Box2dCurve::PerformBSpline, avoid creating new b-spline in case of requested parameter range differ from natural bounds insignificantly.

7) In GeomAdaptor classes, postpone building of cache till the time of its actual usage. So, creation of an adapter to compute intervals of continuity does not lead to creation of internal cache.

8) In the methods BRepAdaptor_Curve::Bezier and BSpline do not call Transformed() if transformation is identity.

9) In the classes Geom_BSplineCurve, Geom_BSplineSurface, Geom_BezierCurve, Geom_BezierSurface, Geom2d_BSplineCurve, Geom2d_BezierCurve change the method Pole() to return the point by const reference.

10) In CPnts_AbscissaPoint.cxx, compute derivative by D1 instead of DN to make use of b-spline cache.

11) Change test cases to actual state:
  - Number of triangles/nodes can grow due to more accurate work with deflection of edges. Now the edge is tessellated using its own tolerance instead of maximal tolerance of all shapes in the face.
  - Accept new numbers of mesh errors (free links, free nodes) for really bad shapes.
  - Correct the test "bugs/mesh/bug25612" to produce stable result.
  - Disable redundant checks in test cases bug25378* (lower limit for computation time).

- Speed up iso-lines computation for offset of bspline surfaces. For that use adaptor instead of original surface in evaluator of approximation.
- Add output of polylines for debug of insertInternalVerticesOther().

Reference data in test case bugs\moddata_2\bug453_3 have been changed to be close to expected theoretical values. This makes the test give stable result on different platforms.
2016-07-07 14:24:39 +03:00
azv
4b445d1848 0027481: [Regression to OCCT 6.6.0] Modeling Algorithms - incorrect CUT on two solids
* Test case has been added
* Adjust mesh characteristics in test cases according to changes in issue #27537
2016-06-02 14:23:40 +03:00
ski
5d7a048985 0027126: Create command checktrinfo to verify meshes
Command checktrinfo was created.
Test cases were updated to use command checktrinfo.
2016-02-05 11:14:44 +03:00
ski
5747059b21 0026833: Create command checkview containing all viewer types
Created command checkview for displaying shapes.
2016-02-05 11:14:37 +03:00
oan
80d659a5a6 0025469: BRepMesh corrupts triangulation of another not connected shape
Do not clean polygons that are created for different faces not connected with current shape.
Remove old code producing additional points for BSpline curves due to fix #24959.

Test cases fir issue CR25469

Revert changes producing additional points for BSpline curves with C1 continuity

Test cases fir issue CR25469

Correction of test cases for issue CR25469
2014-11-21 14:19:28 +03:00
oan
9bdafcbe2d 0023631: Infinite memory consumption in BRepMesh
Check is the shape to be meshed has correct poly data, i.e. PolygonOnTriangulation of particular edge connected to the same Triangulation data structure as stored inside a parent face.
Adding test cases for issue CR23631 bugs/mesh/bug23631
Parallel checking of faces/edges
Make BRepMesh_IncrementalMesh class imported from BRepMesh package.
Resolve GCC warnings on Linux platform
Fix compilation errors on MacOs: remove mutable modificator on reference fields.
2014-06-19 13:26:20 +04:00