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IDProjectCategoryView StatusDate SubmittedLast Update
0031672Community[OCCT] OCCT:Data Exchangepublic2020-07-17 19:442020-07-24 15:09
ReporterAlexandru 
Assigned Togka 
PrioritynormalSeveritymajor 
StatusnewResolutionopen 
PlatformOSWindowsOS Version10
Product Version[OCCT] 7.4.0 
Target VersionFixed in Version 
Summary0031672: Data Exchange, STEP reader - Surface wrongly recognized as degenerate torus
DescriptionIn the attached geometry, one of the surfaces is recognized as degenerated torus. The thing is: There is no torus in this simple geometry. See file attached.
TagsNo tags attached.
Test case number
Attached Files? file icon 37.stp (3,959 bytes) 2020-07-17 19:44
jpg file icon temp.jpg (8,301 bytes) 2020-07-24 15:04

- Relationships

-  Notes
(0093284)
kgv (developer)
2020-07-24 12:38

I suppose that torus surface is created from the following item in STEP file:
#61=DEGENERATE_TOROIDAL_SURFACE('',#42974,0.273874678843767,9.99999999999133,.F.);
(0093285)
Alexandru (reporter)
2020-07-24 12:42

Forgot to say: I can load the STEP without any problems in SolidWorks.
(0093289)
kgv (developer)
2020-07-24 13:04

> Forgot to say: I can load the STEP without any problems in SolidWorks.
If it looks different in SolidWorks - it would be helpful also attaching screenshots.
(0093291)
Alexandru (reporter)
2020-07-24 15:05

I uploaded a screenshot of the actual geometry as section view.
(0093292)
Alexandru (reporter)
2020-07-24 15:09

The volume a rotational symmetry axis, that's why I choosed to show it as a section view

- Issue History
Date Modified Username Field Change
2020-07-17 19:44 Alexandru New Issue
2020-07-17 19:44 Alexandru Assigned To => gka
2020-07-17 19:44 Alexandru File Added: 37.stp
2020-07-24 12:36 kgv Product Version => 7.4.0
2020-07-24 12:36 kgv Summary Surface wrongly recognized as degenerate torus => Data Exchange, STEP reader - Surface wrongly recognized as degenerate torus
2020-07-24 12:38 kgv Note Added: 0093284
2020-07-24 12:42 Alexandru Note Added: 0093285
2020-07-24 13:04 kgv Note Added: 0093289
2020-07-24 15:04 Alexandru File Added: temp.jpg
2020-07-24 15:05 Alexandru Note Added: 0093291
2020-07-24 15:09 Alexandru Note Added: 0093292


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