0031249: Modeling Algorithms - Invalid memory access with parallel lines and GeomAPI_ExtremaCurveCurve - MantisBT

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ID

Project

Category

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Date Submitted

Last Update

0031249

Community

[OCCT] OCCT:Modeling Algorithms

public

2019-12-17 02:17

2019-12-17 13:44

Reporter

Aaron Michalk

Assigned To

msv

Priority

normal

Severity

crash

Status

new

Resolution

open

Platform

Windows VC++ 2019 64 bit

OS

Windows

OS Version

10

Product Version

[OCCT] 7.4.0

Target Version

Fixed in Version

Summary

0031249: Modeling Algorithms - Invalid memory access with parallel lines and GeomAPI_ExtremaCurveCurve

Description

Executing the code below results in an access violation on Windows with 7.4.0. This does not seem to occur with 7.3.0.

Steps To Reproduce

auto line1 = opencascade::handle<Geom_Line>(new Geom_Line(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1)));
auto line2 = opencascade::handle<Geom_Line>(new Geom_Line(gp_Pnt(0, 0, 0), gp_Dir(0, 0, 1)));
GeomAPI_ExtremaCurveCurve extrema(line1, line2);
double u1, u2;
extrema.LowerDistanceParameters(u1, u2);

Additional information
and documentation updates

Checking extrema.Extrema().IsParallel() is a workaround.

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No tags attached.

Test case number

Relationships

related to

assigned

Modeling Algorithms - Exception is raised in GeomFill_SectionPlacement when parallel path and section

Notes
(0089593) msv (developer) 2019-12-17 11:18	It is needed to add the method IsParallel to the classes GeomAPI_Extrema*. And to document properly the methods that must not be called in case of parallel status.

Issue History
Date Modified	Username	Field	Change
2019-12-17 02:17	Aaron Michalk	New Issue
2019-12-17 02:17	Aaron Michalk	Assigned To	=> msv
2019-12-17 11:18	msv	Note Added: 0089593
2019-12-17 11:55	kgv	Product Version	=> 7.4.0
2019-12-17 11:55	kgv	Summary	Invalid memory access with parallel lines and GeomAPI_ExtremaCurveCurve => Modeling Algorithms - Invalid memory access with parallel lines and GeomAPI_ExtremaCurveCurve
2019-12-17 13:44	kgv	Relationship added	related to 0031217

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