0031383: Data Exchange - STEPCAFControl_Writer generates invalid curve in STEP file - MantisBT

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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

2021-05-14 09:53

Reporter

thomhong

Assigned To

bugmaster

Priority

normal

Severity

major

Status

closed

Resolution

unable to reproduce

Platform

Visual Studio 2019

OS

Windows 10

OS Version

64 bit

Product Version

[OCCT] 7.3.0

Target Version

[OCCT] 7.6.0*

Fixed in Version

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.

Test case number

HSK63AER40120M.STP (496,736 bytes) 2020-02-18 20:26

Relationships

Notes
(0100638) dpasukhi (developer) 2021-04-28 14:24	Dear bugmaster, please Close the issue. Not reproduce. An incorrect tolerance has caused it to hang indefinitely. It was fixed together with tolerance issues.

Issue History
Date Modified	Username	Field	Change
2020-02-18 20:26	thomhong	New Issue
2020-02-18 20:26	thomhong	Assigned To	=> gka
2020-02-18 20:26	thomhong	File Added: HSK63AER40120M.STP
2020-03-04 11:59	kgv	Summary	STEPCAFControl_Writer generates invalid curve in STEP file => Data Exchange - STEPCAFControl_Writer generates invalid curve in STEP file
2020-11-23 21:18	gka	Assigned To	gka => dpasukhi
2021-04-28 14:24	dpasukhi	Note Added: 0100638
2021-04-28 14:24	dpasukhi	Assigned To	dpasukhi => bugmaster
2021-04-28 14:24	dpasukhi	Status	new => feedback
2021-04-28 14:45	kgv	Resolution	open => unable to reproduce
2021-04-28 14:45	kgv	Target Version	=> 7.6.0*
2021-05-14 09:53	bugmaster	Status	feedback => closed

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