0029291: HLR algorithm produces different results for equivalent set of commands

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0029291

Open CASCADE

[OCCT] OCCT:Modeling Algorithms

public

2017-11-02 16:19

2020-09-14 22:55

Reporter

ifv

Assigned To

msv

Priority

normal

Severity

minor

Status

new

Resolution

open

Platform

OS Version

Product Version

[OCCT] 7.2.0

Target Version

[OCCT] 7.6.0*

Fixed in Version

Summary

0029291: HLR algorithm produces different results for equivalent set of commands

Description

Bug is reproduced only for branch CR29162

Two sets of visualization commands using HLR provide different results, but each set consists of the same commands, only difference is order of calls.

Steps To Reproduce

First set:
restore [locate_data_file bug25813_hlr-bus1-draw-Fusion001.brep] result
vinit
vdisplay result
vhlr on
vhlrtype algo result
vviewparams -scale 29.4848 -proj 0.57735 -0.57735 0.57735 -up -0.408248 0.408248 0.816497 -at 43.4551 105.742 62.2868

Second set:
restore [locate_data_file bug25813_hlr-bus1-draw-Fusion001.brep] result
vinit
vviewparams -scale 29.4848 -proj 0.57735 -0.57735 0.57735 -up -0.408248 0.408248 0.816497 -at 43.4551 105.742 62.2868
vdisplay result
vhlr on
vhlrtype algo result

Results are shown on attached pictures, left picture for first set, right one - for second.

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Attached Files

HLRbug.PNG (103,569 bytes) 2017-11-02 16:19

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Issue History
Date Modified	Username	Field	Change
2017-11-02 16:19	ifv	New Issue
2017-11-02 16:19	ifv	Assigned To	=> msv
2017-11-02 16:19	ifv	File Added: HLRbug.PNG
2017-11-02 16:20	ifv	Relationship added	related to 0029162
2017-11-02 17:10	msv	Product Version	=> 7.2.0
2019-08-12 16:43	msv	Target Version	7.4.0 => 7.5.0
2020-09-14 22:55	msv	Target Version	7.5.0 => 7.6.0*