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13 Commits

Author SHA1 Message Date
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
ski
5747059b21 0026833: Create command checkview containing all viewer types
Created command checkview for displaying shapes.
2016-02-05 11:14:37 +03:00
nbv
4e14c88f77 0026431: Can't cut a sphere from a cylinder
This branch contains fixes for 26675 and 26431 bugs.

1. Normalization has been eliminated.
2. Interfaces of AppDef_Compute::Parametrization(...) and BRepAlgo_BooleanOperations::SetApproxParameters() methods have been changed.
3. Overloaded methods for ApproxInt_Approx::SetParameters(...), TopOpeBRepTool_GeomTool::GetTolerances(...) and TopOpeBRepTool_GeomTool::SetTolerances(...) have been removed (because some fields of these classes are not used more).
4. Comments for some methods have been changed in BRepApprox_TheMultiLineOfApprox.hxx and GeomInt_TheMultiLineOfWLApprox.hxx files.
5. Some fields have been deleted from ApproxInt_MultiLine class. Kept members have become constant.
6. Interface of ksection DRAW-command has been changed.
7. Now, 2dintersect DRAW-command prints information about found segments.
8. Some code fragments have been rewritten to make them easier.
9. Algorithm of splitting WLine, which goes through pole of sphere has been improved.
10. Improve approximation algorithm in order to it will compute correct 2D- and 3D-tangent at the end of bezier constraints (including case when curve goes through or finishes on singular points).
11. Interface of IntPatch_WLine::Dump(...) method has been corrected.
12. Some methods for working with Walking-line are made more universal (available for both GeomInt and IntTools packages).
13. Problem in BRepLib::SameParameter(...) method has been fixed (see corresponding comment).
14. Small correction in Draft package.
15. Any outputs in IntPatch_Intersection::Dump(...) method have become disabled because they are useless. If anybody need in this outputs he/she will correct this method himself/herself.

Adjusting some test cases according to their new behavior.
Creation of new test cases.

----------------------------------------------------------------------------------------------------------------------------

Some explanation of new behavior of some test cases:

 1. Regressions:

a) blend simple X4
The problem is described in the issue #0026740. According to this description,  the result on the current MASTER seems to be wrong indeed.

b) boolean bcommon_complex C7 and boolean bcut_complex Q1
These test case use same shapes with different Boolean operation (COMMON and CUT). They are already BAD (on the MASTER). Now, some sub-shapes have become not-shared, simply. In my opinion, we shall apply new behavior of these tests.

c) boolean bsection M3
The problem described in the issue #0026777 exists even on the current MASTER.

d) boolean bsection M9
The problem is described in the message http://tracker.dev.opencascade.org/view.php?id=26815#c47546. Here, we have really regression in the picture.

e) boolean bsection N2

The problem is described in issue #0026814.

f) boolean volumemaker G1

The problem is described in issue #26020.

g) bugs modalg_1 bug1255 (and bug1255_1)

The problem is described in issue #26815.

h) bugs modalg_2 bug5805_18, bugs modalg_2 bug5805_42, bugs modalg_2 bug5805_46

The problem is described in issue #25925.

i) bugs modalg_3 bug602

The problem is describes in issue #602.

j) bugs modalg_5 bug24915

The problem is described in the message http://tracker.dev.opencascade.org/view.php?id=25929#c48565. It is not fixed by this issue.

k) bugs modalg_5 bug25838

The main reason is described in issue #0026816.

----------------------------------------------------------------------------
2. Improvements:

a) boolean volumemaker F9
b) bugs modalg_1 bug10160_3
c) bugs modalg_2 bug22557
d) bugs modalg_5 bug25319_1 (_2)
e) draft angle G2
f) offset shape A1
g) offset with_intersect_80 N7
2015-12-04 13:15:04 +03:00
abv
6d3685029f 0026622: Tests - Avoid using dlog and decho commands in test scripts
Added possibility to define patterns that must be present in the test log, so that test is considered OK only if all these patterns are found.
New REQUIRED statement is introduced for that, documented in dox/dev_guides/tests/tests.md.

Removed all uses of decho and dlog commands, added REQUIRED where necessary.
Command xdistcs is modified to output to Tcl instead of cout, and extended to report errors and warnings if distances are greater than tolerance (directly, instead of complex post-processing on Tcl level).

DEBUG mode for TODOs was removed (we should have no deviations in Debug mode).

Corrected indentation in DrawResources/TestCommands.tcl

HTML log will now highlight TODO statement causing IMPROVEMENT status, or REQUIRED statement causing FAIL, by corresponding color.
2015-10-15 11:43:54 +03:00
aml
0cbfb9f151 0021564: Intersection of two planar faces produces curve with too many poles
I ComputePurgedWLine() function:
Excess points in walking line are deleted when:
1) Distance between neighboring points too small.
2) Points lie in one pipe without big jump on chord length.

III
Fixed problem with extremaPC with too close knot distribution to [minParam, maxParam] borders.

IV ApproxInt_Approx.gxx
New division criteria in intersection approximator.

III Test case
Test cases update to the new behavior.
Test case for CR21564

Correction of test cases for issue CR21564
2015-08-13 11:04:48 +03:00
nbv
7365fad60b 0026310: Very slow boolean cut operations on cylinders
1. JoinWLines algorithm has been improved.
2. Reference to the V-boundaries is deleted when computing step.
3. Decreasing the tolerance when computing parameters of WLine.
4. Adding boundary point is forbidden if it lies in prolongation of found ones.
5. Possible reason of exception has been eliminated.
6. Processing of critical point has been improved.

Test cases for this issue have been created.
Correction of some test case(s).

Test case bugs/modalg_6/bug26310_4 is added

Update of test-cases for issue #26310
2015-07-22 16:11:31 +03:00
nbv
5b9e184288 0026193: Incomplete intersection curve
1. Conditions for adjusting and for breaking Walking-lines have been amended.
2. Processing of case when WLine should be broken has been changed.

Test cases for issues 26193 and 26208 have been added

Cosmetic correction of test-cases

Modification of test-case according to the new behavior.
2015-06-04 14:06:34 +03:00
nbv
b5ef9d9151 0025742: A partition of 2 shapes stresses a performance issue
1. Algorithm of aStepU1 computing was changed.
2. Interface to allow convert gp_XY(Z) to the math_Vector has been added.
3. Algorithm of point in V-boundaries computing has been changed.
4. Situation when intersection line walks along V-boundary of cylinder(s) is processed better.
5. Intersection lines are created with their individual step along U1 parameter.
6. Points processing has been moved to the assembly level.
7. Extend output of "bfuseblend" and "bcutblend" DRAW-command.
8. New option for "bfuseblend" and "bcutblend" command has been added.

Update Test cases

Test cases for issue CR25742
2015-04-09 15:32:07 +03:00
emv
1b7ae95146 0025597: Invalid curve on surface in the result of General Fuse operation
1. The tool of computing the max distance between 3D curve and its 2d representation on the face
has been moved from static methods in BOPTools_AlgoTools class to BRepLib_CheckCurveOnSurface class.
2. The tools has been applied to 2d curves built during Boolean Operation
and to some intersection curves.
3. The functions
  Standard_Boolean BOPTools_AlgoTools::ComputeTolerance
    (const TopoDS_Face& theFace,
     const TopoDS_Edge& theEdge,
     Standard_Real& theMaxDist,
     Standard_Real& theMaxPar)
and
  Standard_Boolean IntTools_Tools::ComputeTolerance
    (const Handle(Geom_Curve)& theCurve3D,
     const Handle(Geom2d_Curve)& theCurve2D,
     const Handle(Geom_Surface)& theSurf,
     const Standard_Real theFirst,
     const Standard_Real theLast,
     Standard_Real& theMaxDist,
     Standard_Real& theMaxPar)
have been developed for easy access to BRepLib_CheckCurveOnSurface functionality.

class IntTools_FaceFace
method void IntTools_FaceFace::ComputeTolReached3d()
Case for Plane/BSpline intersection added for treatment.

Test case for issue CR25597

Fix for regression boolean bsection N7.

class BOPAlgo_PaveFiller
method
  void BOPAlgo_PaveFiller::UpdateFaceInfo
    (BOPDS_DataMapOfPaveBlockListOfPaveBlock& theDME,
     const BOPCol_DataMapOfIntegerInteger& theDMV)
Updating Face Info information with new vertices created in PostTreatFF.

Correction boolean/bsection/N2

Updated test cases.
2015-01-22 17:02:30 +03:00
nbv
7c32c7c41f 0025531: Difference in intersection result on Windows and Linux platform is very significant
1. Dump of WLine is shown with more precise.
2. Equation solving with more precise.
3. Dump of Multy-line.
4. Code optimization.

Some test cases were updated in accordance with their new behaviour.

Correction of test cases for issue CR25531
2014-12-25 18:06:15 +03:00
bugmaster
c0bd0de183 Adjusting new testing cases 2014-12-05 14:39:29 +03:00
nbv
02effd356b 0025292: Face/Face intersection algorithm gives different results for different order of the arguments
Method of adjusting was corrected.

Test cases for issue CR25292
2014-10-30 13:25:45 +03:00
nbv
ecc4f1489d 0024915: Wrong intersection curves between two cylinders
Existing method of Cylinder-Cylinder intersection computing is based on finding the analytic line (as a function of one argument) and converting one into the walking-line with set of equidistant (along the line parameter) points.

The main advantage of applied method is using adaptively computed step. Necessary step is computed into every point of the obtained walking-line. At that we receive final walking-line directly (without preliminary analytic line) and we determine moments more precisely, when it should be split (see IntPatch_ImpImpIntersection_4.gxx).

The main disadvantages is bad working this method for non-trimmed cylinders (with infinite bounds), because step value is depend on the boundaries values.

More over, new method always returns walking-line, while intersection result can be an analytic curve (lines, circle, ellipse). That is NO good. Therefore, analytic curve is computed by existing method.

In conclusion, in spite of covering almost all more often meeting cases, new method has limited application. Then we should use the existing old method.

Additionally, method MinMax() is added (see Standard_Real.hxx file). It uses into new algorithm.

Some test cases is changed according to their new behavior.

Test case for issue CR24915 is added.

Into GeometryTest_APICommands.cxx only tabulations were chaged.

"Extending" of isolines (see Geom2dHatch_Hatcher.cxx).

Small correction of test case for issue CR24915.
2014-08-21 15:54:02 +04:00