it goes bust with open paths and when the curve is near itself.there's no easy to input numeric offset value, it must be adjusted by eye.One can ask "why all this complexity, why do you not simply use Path > Dynamic offset?" Tested, how well the result fits in the original traced curveĬonclusion: quite as good as the original tracing Stroke is outlined (Path > Stroke to Path), removed the fill, new stroke width = 0.5 mmĭivided again like in step 3. In Inkscape the edge will be 2,5mm aside from the path => one of the edges shoud be the wanted centerline trace. New colors are selected to make this explanation clearerĭeleted the red curve, the blue curve got 5 mm wide stroke. If your original was a closed shape like a circle, no divisions at nodes are needed, only Break apart. Remember to confirm all divisions with Path > Break apart. Open Inkscape, create a new document, and either drag and drop your MyFrame.png file onto the Inkscape canvas, or use the File->Import. With the image selected, use the Path->Trace bitmap. Traced bitmap, fill removed, 0.5mm strokeĭivided with the node tool to 2 separate curves, end segments are deleted. In the Trace Bitmap window, select the Brightness radio button in the Image Brightness section at the top, then press the OK button at the bottom. Now, the type of image that you are tracing will depend on the settings chosen. The Trace Bitmap window will open with a selection of settings. You can either go to Path > Trace bitmap or right click > Trace Bitmap. If your curve happens to be uniformly wide and do not cross itself, you can get a good result:Ī bitmap curve, about 5 mm wide, high contrast, high resolution, sharp, no JPG compression artifacts (=easily traceable) Once your file has been opened in Inkscape click on the image to select it. I guess you want so called centerline tracing or a way to convert normal Inkscape tracing result to it.
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