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0022566Community[OCCT] OCCT:Data Exchangepublic2011-06-02 19:432017-09-19 11:23
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bugs iges bug22566
0022566: Iges import issue
Post from the Forum - http://www.opencascade.org/org/forum/thread_20801/. [^]

"Harish | 2011/06/02 14:08
We are in process of building a simple application that would read iges files and perform some geometry operations. While testing some iges files generated by solid works, we noticed some issues. I have attached a simple sample file (test_Bad.IGS) for review. This example is a tube created using revolve option in solid works. When we load this file into OCCT using the precompiled Import-export sample program on windows, we noticed improper spherical surface at bottom.
However, if we load this IGES file into the Solid works and export back in iges format, we get a file that can be loaded properly into opencascade application.
I tested the test_Bad.IGS files in other cad tools and found it to be working fine.
Is there a way to read this test_Bad.IGS file properly using opencascade libraries? Please suggest.

Thanks,
Harish "
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? test_Bad.IGS (59,860) 2011-06-03 11:22
https://tracker.dev.opencascade.org/
Issue History
2011-08-02 11:12bugmasterCategoryOCCT:DTE => OCCT:Data Exchange
2011-11-24 15:37szyAssigned Tobugmaster => pdn
2011-11-24 15:37szyStatusacknowledged => assigned
2011-11-24 15:37szyResolutionsuspended => reopened
2011-11-24 15:37szyFixed in VersionEMPTY =>
2011-11-24 15:37szyDescription Updatedbug_revision_view_page.php?rev_id=999#r999
2017-09-19 11:23apvTest case number => bugs iges bug22566
2017-09-19 11:23apvNote Added: 0070667

Notes
(0017569)
szy   
2011-06-03 13:21   
Customer's post:
"While testing some iges files generated by solid works, we noticed some issues.
I have attached a simple sample file (test_Bad.IGS) for review. This example is
a tube created using revolve option in solid works. When we load this file into
OCCT using the precompiled Import-export sample program on windows, we noticed
improper spherical surface at bottom.
However, if we load this IGES file into the Solid works and export back in iges
format, we get a file that can be loaded properly into opencascade application.
I tested the test_Bad.IGS files in other cad tools and found it to be working fine."

Steps to reproduce bag:
pload ALL
igesread test_Bad.igs s *
#"improper spherical surface" is at the bottom of the shape
(0070667)
apv   
2017-09-19 11:23   
Problem described in issue is reproduced on current state of OCCT.