View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0033621 | Community | OCCT:Data Exchange | public | 2024-03-01 13:25 | 2024-03-01 22:57 |
| Reporter | ebknudsen | Assigned To | |||
| Priority | normal | Severity | minor | ||
| Status | closed | Resolution | duplicate | ||
| Platform | Linux | OS | Ubuntu 20.04 | ||
| Product Version | 7.7.0 | ||||
| Target Version | 7.8.1 | ||||
| Summary | 0033621: STEP-import of DEGENERATE_TOROIDAL_SURFACE can be misinterpreted. | ||||
| Description | In some cases the step import of a degenerate toroidal shape can fail, depending on the location of the toroid rotational centers. If 2*r_min > r_maj > r_min _and_ the toroidal surface is cut by a plane above the midplane of the toroid (meaning that the minor center of rotation of the toroid is below the cut-plane), the generating curve appears to have the wrong orientation. See attached report degenerate_toroid_bowls.pdf. If OTOH the minor center of rotation is above the cut plane or r_maj<r_min, the surface gets generated correctly. See attached report with sketches "degenerate_toroid_bowls.pdf". I have created a version of the sample glfw-program to visualize without anything else than occt (attached) . Also I have attached a set of step files used in the report. Anything labelled "*left_below*" fails, whereas "*right*" and "*above*" work. | ||||
| Steps To Reproduce | compile and run the attached version of glfw-sample. and run it with a step-file as a commandline argument. Only difference with glfw-sample is we need TKSTEP as well. | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2024-03-01 13:25 | ebknudsen | New Issue | |
| 2024-03-01 13:25 | ebknudsen | Assigned To | => ika |
| 2024-03-01 13:25 | ebknudsen | File Added: degenerate_toroid_bowls.pdf | |
| 2024-03-01 14:53 | ebknudsen | Relationship added | duplicate of 0033618 |
| 2024-03-01 22:57 | dpasukhi | Assigned To | ika => |
| 2024-03-01 22:57 | dpasukhi | Status | new => closed |
| 2024-03-01 22:57 | dpasukhi | Resolution | open => duplicate |
| 2024-03-01 22:57 | dpasukhi | Note Added: 0115216 |
