View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0022053 | Community | OCCT:Modeling Algorithms | public | 2010-10-07 12:32 | 2011-11-24 11:50 |
| Reporter | szy | Assigned To | |||
| Priority | normal | Severity | trivial | ||
| Status | closed | Resolution | fixed | ||
| OS | All | ||||
| Fixed in Version | 6.5.0 | ||||
| Summary | 0022053: Synchronization of the implementation and the documentation for Geom_ConicalSurface | ||||
| Description | Community: 1. "currently I am working with cones and I am curious if the evaluation code is correct. In 'Geom_ConicalSurface.hxx' is said 'The parametric equation of the cone is: P(u, v) = O + (R + v*tan(Ang)) * (cos(u)*XDir + sin(u)*YDir) + v*ZDir'. But 'ElSLib.cxx' contains different implementation in ElSLib::ConeValue which gives different results." 2."That's it: ElSLib returns ... + V*ZDir * cos(Angle). Thus, the v parameter is a length along the generatrix, not the Z coordinate. I was scratching my head for a couple of hours when was working on CAD Exchanger Parasolid converter. Parasolid has the parametrization as documented in Open CASCADE .hxx but Open CASCADE is not consistent with it ;-). So it is the Open CASCADE cdl file (Geom_ConicalSurface.cdl) that needs to be fixed to write a correct formula." | ||||
| Additional information and documentation updates | Documentation remark, added by JGV 2011-02-08 13:47:13: Improvements: Comments in cdl file are modified to agree with implementation in cxx Modified entities: Geom_ConicalSurface.cdl | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2011-02-07 15:04 | bugmaster | Status | closed => assigned |
| 2011-02-07 15:04 | bugmaster | Resolution | suspended => @0@ |
| 2011-02-07 15:04 | bugmaster | Assigned To | bugmaster => jgv |
| 2011-02-08 15:37 |
|
Status | assigned => resolved |
| 2011-02-14 13:37 | bugmaster | Status | resolved => verified |
| 2011-04-06 18:57 | bugmaster | Status | verified => closed |
| 2011-04-06 18:57 | bugmaster | Resolution | @0@ => fixed |
| 2011-08-02 11:31 | bugmaster | Category | OCCT:MOA => OCCT:Modeling Algorithms |
| 2011-11-24 11:50 | szy | Description Updated | |
| 2011-11-24 11:50 | szy | Additional Information Updated |
