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IDProjectCategoryView StatusDate SubmittedLast Update
0028070Community[OCCT] OCCT:Data Exchangepublic2016-11-08 10:412017-10-02 15:44
Reporterrhplaxis 
Assigned Togka 
PrioritynormalSeverityminor 
StatusnewResolutionopen 
PlatformWindowsOSVC++ 2015OS Version64 bit
Product Version[OCCT] 7.0.0 
Target Version[OCCT] 7.4.0*Fixed in Version 
Summary0028070: Writing surface to step removes internal lines and points
DescriptionI have a polygon with internal lines and points, after saving this to step and reading it again the internal objects are gone.

btw. it's my assumption the problem is in writing, it could just a well be in the reading.
Steps To Reproduce# load brep of a rectangle with an internal line and two internal vertices
restore a.brep a
# save this object to a step file
stepwrite a a a.step
# load the object from the step file to b_1
stepread a.step b *

You would expect that a and b_1 are the same. but the internal line and points are gone from b_1

Draw[6]> nbshapes a
Number of shapes in a
 VERTEX : 8
 EDGE : 5
 WIRE : 2
 FACE : 1
 SHELL : 0
 SOLID : 0
 COMPSOLID : 0
 COMPOUND : 1
 SHAPE : 17

Draw[15]> nbshapes b_1
Number of shapes in b_1
 VERTEX : 4
 EDGE : 4
 WIRE : 1
 FACE : 1
 SHELL : 1
 SOLID : 0
 COMPSOLID : 0
 COMPOUND : 0
 SHAPE : 11
TagsNo tags attached.
Test case numberNot required
Attached Files? file icon a.brep (2,766 bytes) 2016-11-08 10:41
png file icon rect_internal.png (41,842 bytes) 2016-11-08 10:41

- Relationships

-  Notes
(0069874)
apv (tester)
2017-08-25 15:04

Problem described in issue is reproduced on current state of OCCT.

- Issue History
Date Modified Username Field Change
2016-11-08 10:41 rhplaxis New Issue
2016-11-08 10:41 rhplaxis Assigned To => gka
2016-11-08 10:41 rhplaxis File Added: a.brep
2016-11-08 10:41 rhplaxis File Added: rect_internal.png
2017-07-27 09:43 abv Target Version 7.2.0 => 7.4.0*
2017-08-25 15:04 apv Test case number => bugs step bug28070
2017-08-25 15:04 apv Note Added: 0069874
2017-10-02 15:44 apv Test case number bugs step bug28070 => Not required


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