0026499: Crash when applying a transformation from a gp_GTrsf on a step model

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Date Submitted

Last Update

0026499

Community

[OCCT] OCCT:Modeling Algorithms

public

2015-07-30 16:04

2015-08-11 16:57

Reporter

jcthomas

Assigned To

jgv

Priority

normal

Severity

crash

Status

new

Resolution

open

Platform

Windows 7

OS Version

SP1

Product Version

[OCCT] 6.8.0

Target Version

Fixed in Version

Summary

0026499: Crash when applying a transformation from a gp_GTrsf on a step model

Description

When trying to apply this transformation

0.0000 0.0000 1.0000 301.7354
0.9848 0.1736 0.0000 270.4476
0.1736 0.9848 0.0000 276.5281
0 0 0 1.0000

with a gp_GTrsf instance, on all the components of a step model, a Standard_ConstructionError is raised, crashing the whole application.

Steps To Reproduce

// Load the step file that is attached to this ticket.

// Create a gp_GTrsf that corresponds to this transformation matrix :
// 0.0000 0.0000 1.0000 301.7354
// 0.9848 0.1736 0.0000 270.4476
// 0.1736 0.9848 0.0000 276.5281
// 0 0 0 1.0000

gp_GTrsf matOCC;
matOCC.SetValue(1, 1, 0);
matOCC.SetValue(1, 2, 0);
matOCC.SetValue(1, 3, 1);
matOCC.SetValue(1, 4, 301.7354);

matOCC.SetValue(2, 1, 0.9848);
matOCC.SetValue(2, 2, 0.1736);
matOCC.SetValue(2, 3, 0);
matOCC.SetValue(2, 4, 270.4476);

matOCC.SetValue(3, 1, 0.1736);
matOCC.SetValue(3, 2, 0.9848);
matOCC.SetValue(3, 3, 0);
matOCC.SetValue(3, 4, 276.5281);

// For all the TopoDS_Shape instances extracted from the step model
// apply the transformation

BRepBuilderAPI_GTransform transfOCC(matOCC);
transfOCC.Perform(shape);
shape = transfOCC.Shape();

Additional information
and documentation updates

It does not crash with a gp_Trsf instance, but we cannot use it as we allow non uniform scaling in our software.

Issue History
Date Modified	Username	Field	Change
2015-07-30 16:04	jcthomas	New Issue
2015-07-30 16:04	jcthomas	Assigned To	=> szy
2015-07-30 16:04	jcthomas	File Added: tube.step
2015-08-11 16:57	szy	Assigned To	szy => jgv
2015-08-11 16:57	szy	Category	OCCT:Application Framework => OCCT:Modeling Algorithms

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