Bug #32863 - Cone surface returns wrong v derivative

luz paz
Sun, 03/20/2022 - 15:39

Forums:

Can an dev take a look at https://tracker.dev.opencascade.org/view.php?id=32863 ?
Thanks!

Artem Zhidkov
Mon, 03/21/2022 - 07:56

Hello luz paz,

This issue in our backlog. It will be investigated when one of our developers will get free of other prioritized tasks. Of course, you are welcome to contribute, if you have ideas how to solve the mentioned problem.

Best regards,

Artem

Nxyz Wxyz
Tue, 03/22/2022 - 13:52

In the FreeCAD forum post, as linked to in the bug report, there is a comment (https://forum.freecadweb.org/viewtopic.php?p=575258&sid=786d319c452f5a3b...) with a proposed fix.

- https://gitlab.com/blobfish/occt/-/commit/9466a6bc1f564c10d2442d44211ce5...

Artem Zhidkov
Fri, 03/25/2022 - 18:40

Hello Nxyz Wxyz,

The fix is on its way to OCCT master.

I would like to thank you for the link to the patch. Unfortunately, it has a mistake: the addition along cone's axis should be done if U derivative is 0 only. Please, take a look to OCCT commit 54b67d8e7bd80263f28ff009ff6eadc4cbd10bcf.

Best regards,

Artem

luz paz
Mon, 04/17/2023 - 02:41

Hi https://dev.opencascade.org/user/966

Can you link to the commit? Having trouble finding it.

Thanks in advance!

Edit: nevermind! I got to it though the mantis tracker! Apologies