Search found 1626 matches

by tanderson69
Mon Mar 20, 2023 1:48 pm
Forum: Help on using FreeCAD
Topic: Why does this extrude fail check geometry?
Replies: 36
Views: 2635

Re: Why does this extrude fail check geometry?

In my rather limited experience I find that the very common BOPAlgo_InvalidCurveOnSurface errors often do not cause problems. But most of the other BOP check errors are important. +1 But this is very limited experience too. Sorry if this is 'thread highjacking', I took a deep dive on the BOPAlgo_In...
by tanderson69
Wed Mar 01, 2023 7:11 pm
Forum: Help on using FreeCAD
Topic: Recurring problems with step data from step tools
Replies: 34
Views: 2860

Re: Recurring problems with step data from step tools

Hello dear forum members, Again and again I encounter problems after importing step data into Freecad that was exported via Steptools. I look at the header of the file, if it says Steptools I know I'm in for an adventure. The data has errors in the surface boundaries, are surface models and not sol...
by tanderson69
Wed Mar 01, 2023 1:10 pm
Forum: Help on using FreeCAD
Topic: bopalgo_invalidcurveonsurface error
Replies: 5
Views: 350

Re: bopalgo_invalidcurveonsurface error

Hi Can someone shed some light on this Geo Check error message? What exactly is the problem and how can it be solved? I did a deep dive recently on this. Basically, BOP thinks the tolerances of edges is to small(tight). BOP has a different method for deriving the edge tolerance value than the rest ...
by tanderson69
Thu Jan 19, 2023 9:15 pm
Forum: TechDraw
Topic: [solved] Weekly 021-31527 TechDraw dimensions cause crashes
Replies: 47
Views: 6491

Re: Weekly 021-31527 TechDraw dimensions cause crashes

I believe 7fc59a68a0 fixes this, but I don't have the ability to test on mac. Using the "sanitizer" I was able to generate a failure on linux at the same point as was reported for mac, so fingers crossed. I was fighting a heisenbug in occt. Wouldn't trigger a segfault with gdb and debug b...
by tanderson69
Tue Jan 17, 2023 10:21 pm
Forum: TechDraw
Topic: [solved] Weekly 021-31527 TechDraw dimensions cause crashes
Replies: 47
Views: 6491

Re: Weekly 021-31527 TechDraw dimensions cause crashes

I bet address sanitizer will find this bug on any platform. cmake
by tanderson69
Mon Nov 14, 2022 1:41 pm
Forum: Developers corner
Topic: How to do something to improve the performance of FreeCAD?
Replies: 11
Views: 2420

Re: How to do something to improve the performance of FreeCAD?

That looks like OCC. There probably is not much to do in the code itself, but may-be it's possible to multithread it, so that different objects can be recomputed in parallel on multiple cores. Since they are independent OCC objects that are linked together in 3D space by the scene-graph (Coin3D) th...
by tanderson69
Thu Nov 03, 2022 6:05 pm
Forum: Developers corner
Topic: dependencies in the document xml, question.
Replies: 3
Views: 539

Re: dependencies in the document xml, question.

This doesn't (necessarily) violate the DAG. When writing a feature to the Document.xml file then it also considers hidden dependencies but for a recompute the hidden dependencies are ignored. Ok. I guess I missed the fact that the dependencies are fully defined in each object and that "ObjectD...
by tanderson69
Thu Nov 03, 2022 3:35 pm
Forum: Developers corner
Topic: dependencies in the document xml, question.
Replies: 3
Views: 539

dependencies in the document xml, question.

Here is a condensed document.xml snippet. question to follow. <?xml version='1.0' encoding='utf-8'?> <!-- FreeCAD Document, see https://www.freecadweb.org for more information... --> <Document SchemaVersion="4" ProgramVersion="0.20R28929 (Git)" FileVersion="1"> <Propert...
by tanderson69
Sun Oct 23, 2022 3:11 pm
Forum: Developers corner
Topic: xml schema for freecad's xml documents
Replies: 4
Views: 721

Re: xml schema for frecad's xml documents

I created a xml schema file for Freecad's 'Document.xml' file and used xsdcxx to generate a xml parser from it. I have successfully read 18 files, mostly from the puma project, and passed 125 tests, so I think it is mostly there. It is attached if anybody wants it.
by tanderson69
Fri Oct 21, 2022 2:52 pm
Forum: Developers corner
Topic: xml schema for freecad's xml documents
Replies: 4
Views: 721

xml schema for freecad's xml documents

Is there, or has anybody ever made, a xml schema file (.xsd) for the freecad xml documents?