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| ID | Project | Category | View Status | Date Submitted | Last Update |
| 0031383 | Community | [OCCT] OCCT:Data Exchange | public | 2020-02-18 20:26 | 2020-11-23 21:18 |
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| Reporter | thomhong | |
| Assigned To | dpasukhi | |
| Priority | normal | Severity | major | |
| Status | new | Resolution | open | |
| Platform | Visual Studio 2019 | OS | Windows 10 | OS Version | 64 bit |
| Product Version | [OCCT] 7.3.0 | |
| Target Version | | Fixed in Version | | |
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| Summary | 0031383: Data Exchange - STEPCAFControl_Writer generates invalid curve in STEP file |
| Description | OCCT 7.4.0's STEPCAFControl_Writer is generating a STEP file that is unable to be opened by consumers, including OCC's STEP reader (appears to be due to a tiny curve with parametric step size < double precision). This is easily reproducible using the OCC CadAssistant application. |
| Steps To Reproduce | 1. Open HSK63AER40120M.STP in CadAssistant
2. Save as STEP model using default settings (HSK63AER40120M-output.step)
3. Close CadAssistant
4. Attempt to open HSK63AER40120M-output.step in CadAssistant
CadAssistant will hang indefinitely. |
| Tags | No tags attached. |
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| Test case number | |
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| Attached Files |  HSK63AER40120M.STP (496,736 bytes) 2020-02-18 20:26 |
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