Commit Graph

5 Commits

Author SHA1 Message Date
jgv
bdae3beb87 0028802: The tolerance reached by approximator is used in creation of an edge, it is incorrect
Method IntTools_FaceFace::MakeCurve is modified: reached tolerances 2d and 3d of approximator are not used for edges.
2017-06-15 15:27:34 +03:00
nbv
261b7d9e8a 0028222: Intersection of two cylinders fails
1. The reason of exception has been eliminated.

2. Algorithm in IntPatch_WLineTool::JoinWLines(...) method has been modified in order to forbid join curves in the point where more than two intersection lines meet. More over, joining is forbidden if local curvature in the connection point is too big (see function CheckArgumentsToJoin(...) in the file IntPatch_WLineTool.cxx).

3. Interface of IntPatch_WLineTool::JoinWLines(...) method has been modified in order to reduce number of arguments.

4. Small corrections in IsSeamOrBound(...) static function has been made. Namely, check has been added if two boundaries are in the same period region but are too far each to other (see IntPatch_WLineTool.cxx, IsSeamOrBound(...) function, line # 532).

5. "Reversed" flag has been made local. Now, it is pure local characteristic: the algorithm decides itself, shall we reverse the argument order. This correction makes the algorithm more commutative (see issue #25404). However, IntPatch_WLineTool::JoinWLines(...) method can return non-commutative result.

6. Algorithm of searching small intersection curves has been improved.

7. New methods have been added in Bnd_Range class.

Some test cases have been adjusted according to their new behavior.

1. tests\bugs\modalg_6\bug26310_3
   tests\bugs\modalg_6\bug26310_4
   tests\bugs\moddata_2\bug235
   tests\perf\modalg\bug26310_1
   tests\bugs\modalg_5\bug24915

Logic of these cases has been changed. Mover over, additional check has been added in "bug26310_1" test case. Therefore, its performance will be slower than on the current MASTER.

2. tests\bugs\modalg_5\bug25292*

Scripts have been rewritten in order to make it more readable. Logic of these cases has not been changed.
2017-05-26 14:48:59 +03:00
nbv
d30895f5da 0023178: Intersection of cylinders fails to produce results
1. Unification of trimmed and not-trimmed cylinders processing (IntPatch_Intersection::GeomGeomPerfomTrimSurf() method has been removed).
2. Interface of IntPatch_ImpImpIntersection::Perform(...) method has been changed.
3. Now, WLine purging is forbidden for Geom-Geom-Intersection.
4. Bnd_Range class has been created. See Bnd_Range.hxx for detail information.
5. Algorithm of AddBoundaryPoint function has been improved in order to obtain intersection points in both boundaries (VFirst and VLast of every surface).
6. Earlier, method Geom2dConvert::ConcatG1(...) increased resulted B-spline degree (in case of not succession of previous iteration). Now increased value has been limited by Geom2d_BSplineCurve::MaxDegree() value (max degree = 25).
7. Algorithm of B-spline closure definition has been changed in the methods Geom2dConvert::C0BSplineToC1BSplineCurve(...) and Geom2dConvert::C0BSplineToArrayOfC1BSplineCurve(...).

Creation of test case for this issue.
Adjusting test cases according to their new behavior.

Small correction in the code according to KGV's remark.
2016-10-07 13:37:31 +03:00
nbv
ae54125247 0027766: Incorrect section curves between attached cylinders
2d-tolerance has been bounded above (earlier it was too big for precise computation).

Creation of the test case for this issue.
Adjusting some test cases according to their new behavior.

Adjusting test case according to its new behavior.
2016-08-18 14:46:35 +03:00
nbv
79997052f1 0027310: Huge tolerance obtained in the result of intersection of two cylindrical faces
Sometimes start point of the intersection line is in the surface boundary strictly. I.e. the parameter of this point in the surface can be equal to both 0 or 2*PI equivalently. It is important to chose correct parameter value.

The algorithm of prediction is based on monotonicity property (see CylCylMonotonicity(...) function in IntPatch_ImpImpIntersection_4.gxx). Now, this function is used wrongly. The fix improves this situation.

Small optimization in the code.
Creation of test cases .

The logic of returning value by the method BoundariesComputing() has been corrected.
2016-04-28 17:04:58 +03:00