step to technical (manufacturing) specs

[rares-lupascu]

Hey guys

I have developed a script that generates a window shutter in freecad ... i was hopping i can generate the technical specs from there too but the API for technical specs (specifically edges) is very limited there .... so my question is ... can i use cadquery to import the step file and then generate the tech specs as in the attached files?

https://we.tl/t-Caqi2pyfG2
could not attach step here so i've created a wetransfer link

[jmwright]

You can use edge and vertex selectors, which is what cq-annotate uses for some things. The approach cq-annotate uses (which has its issues) is to create 3D objects and text that look 2D when rendered to DXF, SVG, etc. So you could select edges and vertices and then create the extension and dimension lines that way. CadQuery also makes use of ezdxf, which allows for adding things like dimensions directly to a DXF drawing. I have not looked deeply into it though, and am not sure how you map between model space (edge and vertex locations) and the DXF's view space to get the dimension lines in the correct position.

[rares-lupascu]

You can use edge and vertex selectors, which is what cq-annotate uses for some things. The approach cq-annotate uses (which has its issues) is to create 3D objects and text that look 2D when rendered to DXF, SVG, etc. So you could select edges and vertices and then create the extension and dimension lines that way. CadQuery also makes use of ezdxf, which allows for adding things like dimensions directly to a DXF drawing. I have not looked deeply into it though, and am not sure how you map between model space (edge and vertex locations) and the DXF's view space to get the dimension lines in the correct position.

will give it a go ... thanks