0023011: ShapeAnalysis_Wire returns an incorrect CheckOrder

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0023011

Community

[OCCT] OCCT:Shape Healing

public

2012-03-05 15:04

2017-07-13 17:04

Reporter

kapilbhudhia

Assigned To

gka

Priority

high

Severity

major

Status

assigned

Resolution

open

Platform

Visual Studio 9, Win32

WIndows

OS Version

Win 7

Product Version

[OCCT] 6.5.2

Target Version

Fixed in Version

Summary

0023011: ShapeAnalysis_Wire returns an incorrect CheckOrder

Description

Create a Solid Cube and do some Analysis on it. So, I go through its faces and foreach face through all its wires (it is 1 in this case) and foreach wire I check the order.

To my utter shock the method
ShapeAnalysis_Wire::CheckOrder() returns true -- which basically means that the wire is not ordered correctly.

Either the solid cube is created wrong or the CheckOrder API is returing a wrong result or I am doing something utterly silly.

----------- THE CODE ---------

// create a solid bounding box
BRepPrimAPI_MakeBox outerBox(gp_Pnt(-10000, -10000, -10000), gp_Pnt(10000, 10000, 10000));

for (TopExp_Explorer faceIter(outerBox.Solid(), TopAbs_FACE);
faceIter.More();
faceIter.Next())
{
const TopoDS_Face& aFace = TopoDS::Face(faceIter.Current());

for (TopExp_Explorer wireIter(aFace, TopAbs_WIRE);
wireIter.More();
wireIter.Next())
{
const TopoDS_Wire& aWire = TopoDS::Wire(wireIter.Current());
double precision = 1e-04;
ShapeAnalysis_Wire saw(aWire, aFace, precision);
if (saw.CheckOrder())
{
throw gcnew Exception("Wire not ordered properly");
}
}
}

Steps To Reproduce

Create a small console app with the following code

// create a solid bounding box
BRepPrimAPI_MakeBox outerBox(gp_Pnt(-10000, -10000, -10000), gp_Pnt(10000, 10000, 10000));

for (TopExp_Explorer faceIter(outerBox.Solid(), TopAbs_FACE);
faceIter.More();
faceIter.Next())
{
const TopoDS_Face& aFace = TopoDS::Face(faceIter.Current());

for (TopExp_Explorer wireIter(aFace, TopAbs_WIRE);
wireIter.More();
wireIter.Next())
{
const TopoDS_Wire& aWire = TopoDS::Wire(wireIter.Current());
double precision = 1e-04;
ShapeAnalysis_Wire saw(aWire, aFace, precision);
if (saw.CheckOrder())
{
throw gcnew Exception("Wire not ordered properly");
}
}
}

Issue History
Date Modified	Username	Field	Change
2012-03-05 15:04	kapilbhudhia	New Issue
2012-03-05 15:04	kapilbhudhia	Assigned To	=> gka
2017-07-13 17:04	mkv	Note Added: 0068270
2017-07-13 17:04	mkv	Status	new => assigned

Notes
(0068270) mkv (tester) 2017-07-13 17:04	Dear GKA, could you put your opinion about it.

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