View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0023999 | Community | OCCT:Modeling Algorithms | public | 2013-05-28 15:36 | 2014-02-12 13:31 |
| Reporter | shlkl99 | Assigned To | |||
| Priority | normal | Severity | major | ||
| Status | assigned | Resolution | open | ||
| Platform | Windows | OS | 7 | ||
| Product Version | 6.6.0 | ||||
| Summary | 0023999: Error in BRepAlgoAPI_Section to compute the intersect line between two faces | ||||
| Description | Recently, we worked on a program that used BRepAlgoAPI_Section to compute the intersect line between two faces. And then, transfer the intersect line to bspline curve. We used like this: BRepAlgoAPI_Section sec(m_Face1,m_Face2,PerformNow); sec.ComputePCurveOn1(Standard_True); sec.ComputePCurveOn2(Standard_True); sec.Approximation(Standard_True); sec.Build(); if(sec.IsDone()) { TopoShape = sec.Shape(); if (!TopoShape.IsNull()) { TopExp_Explorer ex_Edge; for (ex_Edge.Init(TopoShape,TopAbs_EDGE);ex_Edge.More();ex_Edge.Next()) { Standard_Real Frist,Last; TopoDS_Edge m_Edge = TopoDS::Edge(ex_Edge.Current()); Handle(Geom_Curve) bCurve = BRep_Tool::Curve(m_Edge,Frist,Last); Handle(Geom_TrimmedCurve) TrimmedCurve = new Geom_TrimmedCurve(bCurve,Frist,Last); Handle(Geom_BSplineCurve) m_BSplineCurve = GeomConvert::CurveToBSplineCurve(TrimmedCurve); } } } The faces we used are attached in attachment(surface2 and surface3). But we find an error: if we use opencascade to display the intersect line ,that is OK,like intersectline.igs(attachment) but if we display in heekscad or UG or other cad software. it is wrong,the intersect line have a part of a straight line more than before, you can just try using heekscad. | ||||
| Steps To Reproduce | 1. read the file in attachment:surface2 and surface3. 2. using the code i have posted and make intersect 3. export the intersect line (ex:iges file) 4. read in any 3d software(UG,heekscad,ICEM and so on) 5. you can find the error in the intersect line | ||||
| Additional information and documentation updates | I think it may be the problem of BRepAlgoAPI_Section and also this alogrithm is realy slow ,Is any alogrithm faster than BRepAlgoAPI_Section ? | ||||
| Tags | No tags attached. | ||||
| Test case number | Not needed | ||||
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sufaces-intersectline.rar (506,776 bytes) |
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Test case required to check issue. |
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It's impossible to create test case is our testing system (only display intersect line in other 3d software and see is it OK or BAD). |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2013-05-28 15:36 | shlkl99 | New Issue | |
| 2013-05-28 15:36 | shlkl99 | Assigned To | => ifv |
| 2013-05-28 15:36 | shlkl99 | File Added: sufaces-intersectline.rar | |
| 2014-01-29 17:16 | bugmaster | Note Added: 0027694 | |
| 2014-01-29 17:16 | bugmaster | Assigned To | ifv => apn |
| 2014-01-29 17:16 | bugmaster | Status | new => assigned |
| 2014-02-12 13:30 | apn | Note Added: 0027856 | |
| 2014-02-12 13:31 | apn | Test case number | => Not needed |
| 2014-02-12 13:31 | apn | Assigned To | apn => ifv |
