AU

First take a look at `cq.Shape.makeSplineApprox` and `cq.Workplane.splineApprox`.

> Example. For the airfoil geometry, I often obtain wavy shapes due to overfitting (I use Selig format for the profile points). A possible solution would be to construct the...

Can you describe your actual use case precisely? BTW you can always use OCCT methods directly.

This is what I get with `splineApprox` (see below). I don't see anything obviously wrong. I also don't understand the story with weights, your profile is supposed to be exact...

OK, your use case is clear and very specific. I can see how having this import functionality would be beneficial for some users. As I mentioned the code is there:...

I don't think it is a bug. AFAICT the parameters are relative weights of certain penalty terms, try e.g `(1,0,0)` vs `(0,1,0)`. I'm afraid OCCT documentation of this function is...

It something likely regarding sRGB vs linear RGB (see https://dev.opencascade.org/content/step-colours-regressionchange). What do you mean with STEP colors being off actually? E.g. off with respect to linear RGB or sRGB?

You could try `cq.Shape.isValid` and `cq.Shape.fix`. What is exactly the error that is reported ?

@shrekuntu good to hear that you like CadQuery! Indeed our SVG export is rather rudimentary. There are no specific plans to include dimensions, although that would certainly be very useful....

There is no DXF export (yet), but we do have preliminary DXF import: https://github.com/CadQuery/cadquery/blob/56046ef9dc0527c6bc9048b950858a2784be6cd7/cadquery/occ_impl/importers.py#L145 Exporting would have similar structure as the code above. There is also section operation, so you...