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IDProjectCategoryView StatusDate SubmittedLast Update
0029426Open CASCADE[OCCT] OCCT:Modeling Algorithmspublic2018-01-15 13:072018-06-29 21:19
Reporteremv
Assigned Tobugmaster
PrioritynormalSeverityminor
StatusclosedResolutionfixed
PlatformOSOS Version
Product Version[OCCT] 7.2.0
Target Version[OCCT] 7.3.0Fixed in Version[OCCT] 7.3.0
Summary0029426: Extrema algorithm fails to find minimal distance between Circle and Sphere
DescriptionThe solution found by Extrema algorithm on the attached geometries is not minimal. Although, for the trimmed circle the found solution is more correct.

The problem has been detected in the test cases bugs modalg_7 bug26883_* while making patch for the issue 0028599.
Steps To Reproducerestore bug29426_c1 c1
restore bug29426_s1 s1
# full circle
extrema c1 s1
length ext_1
# The length ext_1 is 1.3104272222026517e-005

# trimmed circle
trim ct c1 3 3.2
extrema ct s1
length ext_1
# The length ext_1 is 3.9276939000069667e-008

restore bug29426_c2 c2
restore bug29426_s2 s2
# full circle
extrema c2 s2
length ext_1
# The length ext_1 is 1.1733963723341348e-005

# trimmed circle
trim ct c2 3 3.2
extrema ct s2
length ext_1
# The length ext_1 is 1.0254966161196536e-009

TagsNo tags attached.
Test case numberlowalgos extcs bug29426_1 bug29426_2
Attached Files bug29426_c1 (291 bytes) 2018-01-15 13:11
bug29426_s1 (66 bytes) 2018-01-15 13:11
bug29426_c2 (291 bytes) 2018-01-15 13:12
bug29426_s2 (66 bytes) 2018-01-15 13:12

Relationships
 related to 0028599 closed apn Open CASCADE Replacement of old Boolean operations with new ones in BRepProj_Projection algorithm

 Notes emv (developer) 2018-01-31 10:49 The problem is fixed in the issue 0028599. The test cases for the issue will also be integrated with the fix for 0028599. emv (developer) 2018-01-31 16:46 Dear bugmaster, please close this issue after integration of 0028599.

 Issue History Date Modified Username Field Change 2018-01-15 13:07 emv New Issue 2018-01-15 13:07 emv Assigned To => msv 2018-01-15 13:11 emv File Added: bug29426_c1 2018-01-15 13:11 emv File Added: bug29426_s1 2018-01-15 13:12 emv File Added: bug29426_c2 2018-01-15 13:12 emv File Added: bug29426_s2 2018-01-15 13:15 emv Description Updated View Revisions 2018-01-15 13:15 emv Steps to Reproduce Updated View Revisions 2018-01-15 13:15 emv Relationship added related to 0028599 2018-01-15 13:16 emv Relationship added related to 0026883 2018-01-19 13:58 msv Status new => assigned 2018-01-23 17:21 msv Assigned To msv => emv 2018-01-31 10:49 emv Note Added: 0073690 2018-01-31 16:46 emv Note Added: 0073703 2018-01-31 16:46 emv Assigned To emv => bugmaster 2018-01-31 16:46 emv Status assigned => feedback 2018-02-05 17:06 apn Test case number => lowalgos extcs bug29426_1 bug29426_2 2018-02-05 17:06 apn Status feedback => verified 2018-02-05 17:06 apn Resolution open => fixed 2018-02-20 12:58 aiv Target Version 7.4.0 => 7.3.0 2018-06-29 21:15 aiv Fixed in Version => 7.3.0 2018-06-29 21:19 aiv Status verified => closed