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IDProjectCategoryView StatusDate SubmittedLast Update
0024418Open CASCADE[OCCT] OCCT:Modeling Algorithmspublic2013-11-29 11:212019-09-04 12:12
Reporteremv 
Assigned Tomsv 
PrioritynormalSeverityminor 
StatusassignedResolutionopen 
PlatformOSOS Version
Product Version[OCCT] 6.6.0 
Target Version[OCCT] UnscheduledFixed in Version 
Summary0024418: Modeling Algorithms - Wrong section curves when intersecting analytical surfaces
DescriptionThe intersection algorithm produces wrong section curves in the following test cases:
boolean bfuse_complex E6, F8
bugs modalg_2 bug20964_*
draft angle F9
Steps To Reproduce1. test bugs modalg_2 bug20964_1
brestore [locate_data_file OCC20964_revsolid.brep] b1
brestore [locate_data_file OCC20964_sphere.brep] b2
explode b1 f; copy b1_7 b1
explode b2 f; copy b2_1 b2
mksurface s1 b1
mksurface s2 b2
trimv s1t s1 0 230.14184397163115

# Sphere + Cylinder

intersect ii s1t s2
# 3 curves

bounds ii_2 u1 u2
xdistcs ii_2 s1 u1 u2 10 2.0e-7
# Max distance = 3.2632852455436544e-006

xdistcs ii_2 s2 u1 u2 10 2.0e-7
# Max distance = 0.01375619471412208

2. test draft angle F9
ptorus b1 25 24 90
plane p 20 20 10 0 0 1
pcone b2 p 10 8 40
explode b1 f; copy b1_1 b1
explode b2 f; copy b2_1 b2
mksurface s1 b1
mksurface s2 b2
trimu s1t s1 0 1.5707963267948966
trimv s2t s2 0 40.049968789001575
intersect ii s1t s2t

bounds ii_1 u1 u2
xdistcs ii_1 s1 u1 u2 10 2.0e-7
# Max distance = 4.0530416013101348e-006

xdistcs ii_1 s2 u1 u2 10 2.0e-7
# Max distance = 1.7347713433437292e-005

3.
Test case bugs modalg_5 bug25715_3
TagsNo tags attached.
Test case numberbugs modalg_7 bug24418_1, bug24418_2
Attached Filespng file icon 001.png (12,063 bytes) 2014-12-22 12:08

- Relationships
related to 0024299closedemv Open CASCADE Wrong section curve 
related to 0025404closednbv Open CASCADE Even for analytical surfaces (cylinder-cylinder) intersection result is not commutative 
related to 0025542closedbugmaster Community Boolean operation failure for Cylinder and Cone in critical location. 
related to 0024772assignedmsv Community Modeling Algorithms - Intersection of cylinder and cone produces incorrect results 
related to 0025956assignedmsv Open CASCADE Modeling Algorithms - Wrong result obtained by intersection algorithm. 
child of 0024094closedbugmaster Community Issure by option of BRepAlgoAPI_Section 

-  Notes
(0036091)
nbv (developer)
2015-01-15 11:49

 Dear msv.

I think, it is better for us to fix in this bugs some problems with ANALYTICAL intersection only.

Therefore, it is not worth bug # 25416 being related to this
(0064281)
nbv (developer)
2017-03-13 17:05

 Steps To Reproduce has been updated according to its behavior on the current state of OCCT developer version.
(0071931)
mkv (tester)
2017-11-02 12:24

 Problem is reproduced on the current master.

- Issue History
Date Modified Username Field Change
2013-11-29 11:21 emv New Issue
2013-11-29 11:21 emv Assigned To => nbv
2013-11-29 11:27 emv Status new => assigned
2013-11-29 11:27 emv Description Updated View Revisions
2013-11-29 11:27 emv Steps to Reproduce Updated View Revisions
2013-11-29 11:27 emv Relationship added child of 0024094
2013-11-29 11:28 emv Relationship added related to 0024299
2013-12-02 15:11 emv Relationship added related to 0024427
2014-05-28 17:20 nbv Relationship added related to 0024915
2014-09-12 13:01 abv Target Version => 7.1.0
2014-10-21 11:14 nbv Relationship added related to 0025404
2014-12-22 12:07 emv Steps to Reproduce Updated View Revisions
2014-12-22 12:08 emv File Added: 001.png
2015-01-15 11:23 emv Relationship added related to 0025709
2015-01-15 11:32 msv Relationship added related to 0025416
2015-01-15 11:33 nbv Summary Wrong section curves => Wrong section curves when intersecting analytical surfaces
2015-01-15 11:49 nbv Note Added: 0036091
2015-01-15 11:49 nbv Relationship deleted related to 0025416
2015-01-21 15:25 nbv Relationship added related to 0025715
2015-01-28 09:33 nbv Steps to Reproduce Updated View Revisions
2015-07-16 09:23 nbv Relationship added related to 0025542
2016-10-25 19:04 msv Target Version 7.1.0 => 7.2.0
2017-03-02 15:31 nbv Relationship added related to 0028503
2017-03-13 17:05 nbv Note Added: 0064281
2017-03-13 17:05 nbv Steps to Reproduce Updated View Revisions
2017-07-24 09:22 msv Target Version 7.2.0 => 7.3.0
2017-11-02 12:24 mkv Test case number => bugs modalg_7 bug24418_1, bug24418_2
2017-11-02 12:24 mkv Note Added: 0071931
2017-12-05 17:08 msv Target Version 7.3.0 => 7.4.0
2018-06-19 13:10 nbv Relationship added related to 0024772
2018-06-20 14:05 nbv Relationship deleted related to 0028503
2018-07-09 10:50 nbv Steps to Reproduce Updated View Revisions
2018-11-02 10:28 nbv Relationship added related to 0025956
2019-08-12 19:08 msv Assigned To nbv => msv
2019-08-12 19:11 msv Target Version 7.4.0 => Unscheduled
2019-09-04 12:12 kgv Summary Wrong section curves when intersecting analytical surfaces => Modeling Algorithms - Wrong section curves when intersecting analytical surfaces

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