0023343: Crash (ACCESS VIOLATION) in GeomPlate_BuildPlateSurface / MakeApprox if init Surface is set

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Date Submitted

Last Update

0023343

Community

[OCCT] OCCT:Modeling Algorithms

public

2012-07-23 15:39

2017-07-27 18:21

Reporter

Alexander Schneller

Assigned To

jgv

Priority

normal

Severity

crash

Status

new

Resolution

open

Platform

Windows

VC++ 2010

OS Version

32 bit

Product Version

[OCCT] 6.5.2

Target Version

Fixed in Version

Summary

0023343: Crash (ACCESS VIOLATION) in GeomPlate_BuildPlateSurface / MakeApprox if init Surface is set

Description

If GeomPlate_BuildPlateSurface is used with an initial surface and a curve constraint, it is possible to get an ACCESS VIOLATION by an internal call of GeomPlate_MakeApprox. If the curve constraint can not be completely projected onto the surface.
--------------------------------------------------------
GeomPlate_MakeApprox App(myGeomPlateSurface, myTol3d,
                   1, 3,
                   15*myTol3d,
                   -1, GeomAbs_C0,
                   1.3);
--------------------------------------------------------
Because the parameter "myGeomPlateSurface" is Null.
This was found at Line 525-529 at file GeomPlate_BuildPlateSurface.cxx

The Exaption will raised on Line 329 at file GeomPlate_MakeApprox.cxx, by getting the UV-bounds of the surface.
--------------------------------------------------------
myPlate->RealBounds(U0, U1, V0, V1);
--------------------------------------------------------

Perhaps the variable must be initialized as in line 1689 at file GeomPlate_BuildPlateSurface.cxx ?
--------------------------------------------------------
myGeomPlateSurface = new GeomPlate_Surface( mySurfInit, myPlate );
--------------------------------------------------------

Steps To Reproduce

The Crash can reproduced with Draw (gplate).

1) unzip "gplateCrash.zip"
2) start the script "source gplateCrash"

or copy & paste:

restore initFace.brep initFace
restore edge_constraint.brep edge_constraint

point p1 30 -33.4729635533385 49.7661550602442
point p2 30 -49.6961550602442 33.3929635533386
point p3 23.3333333333333 -50 30.07
point p4 -30 -33.4729635533386 49.6161550602442

gplate r1 1 4 initFace edge_constraint1 0 p1 p2 p3 p4

Tags

No tags attached.

Test case number

bugs modalg_7 bug23343

Attached Files

gplateCrash.zip (18,002 bytes) 2012-07-23 15:39

Relationships

Notes
(0068515) git (administrator) 2017-07-20 18:58	Branch CR23343 has been created by mkv. SHA-1: 01da7955fba9e656e8c1c657e064b73e09c02ae6 Detailed log of new commits: Author: mkv Date: Thu Jul 20 18:58:33 2017 +0300 Test for 0023343: Crash (ACCESS VIOLATION) in GeomPlate_BuildPlateSurface / MakeApprox if init Surface is set

(0068816) mkv (tester) 2017-07-27 18:21	Dear BugMaster, problem described in issue is reproduced on current state of OCCT.

Issue History
Date Modified	Username	Field	Change
2012-07-23 15:39	Alexander Schneller	New Issue
2012-07-23 15:39	Alexander Schneller	Assigned To	=> jgv
2012-07-23 15:39	Alexander Schneller	File Added: gplateCrash.zip
2017-07-20 18:58	git	Note Added: 0068515
2017-07-20 19:01	mkv	Test case number	=> bugs modalg_7 bug23343
2017-07-27 18:21	mkv	Note Added: 0068816