![]() I was left with a series of paths which represent all the closed outlines making the hotrod. I got the large rectangle again and deleted it. So in FreeCAD I opened the SVG and got a series of "path" objects. The DXF was a no-go in FreeCAD because it is made out of spline curves and the DXF importer does not support splines. I use FreeCAD which has a complete GUI my non-programmer brain can understand. I do not use OpenSCAD as my brain is not wired for it. Then I selected the hotod and hit Ctrl+Shift_F to get the Fill and Stroke dialog in the Fill tab, I clicked on "no paint" to get rid of the black filling, then in the Stroke paint tab, I clicked on "Flat color" to show the outline. I got two objects, the filled black hotrod, and a white rectangle (when I hovered over it I could only see the selection rectangle). I right-clicked on it and chose "Ungroup". First I deleted the bitmap image and kept only the generated vector object. But some processing was required afterward. What worked best was Multiple scans/2 passes, in Greys (see capture). In the Trace Bitmap parameters, Brightness cutoff didn't work well, and Edge detection seemed to, but produced a double outline rather than a single one. I saved one jpeg with a filled hotrod, and one with an outline-only hotrod. I just tried with your hotrod image (cool shape by the way!) and it seems to work pretty well.įirst thing is to edit your jpeg first, crop it in your image editor (Gimp, Photoshop.) to keep only one shape, as your jpeg has 5 of them. See the Inkscape wiki page on how to do that: A raster (or bitmap) image such as JPEG cannot simply be imported into Inkscape and exported to DXF, it won't work, as it will still be a raster image. You are aware that DXF is a vector format? Meaning it consists of curves and/or lines.
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