The first one was using the Bucket Fill tool using the Alpha channel. The second one was Trace Bitmap - Center Line Tracing - single pass with all options disabled. Then node edit the names out.
Something like this - it won't be perfect. If you overlay all 3 you will see the differences.
Do you plan to etch and cut? I would do a Path Effect>Offset with a 10mm setting on the Blue Outline.
About the bucket, I don't understand what you mean with the Alpha Channel. I tried with a rectangle around the map and then the bucket command works
The Center Line Tracing tool is very nice.I didn't know about it. The result is good, but one needs to correct a bit (there are some gaps, some "steep" corners) but overall it is fine.
The idea is cutting the perimeter and mark the inner regions. Why the 10mm offset?
When you select the Paint Bucket tool you can select the type of fill.
10mm offset - I assumed you were also going to laser cut as well as engrave.
The Center Tracing tool. Just came across an issue with that. Where it tends to chop at the perimeter. Lets see if I can find the post that can correct that issue.
Beyond the Basics Tracing bitmaps: from bitmap line to vector
Inkscape.org
Hi,
I want to trace a bitmap, it is a map. The idea is to engrave it on wood with laser.
Here we can see the black lines (nevermind the names).
When zooming in, we can start seeing the pixelated image
The bitmap tracing works pretty well
but if i set the fill to none and the stroke to black this is what I get, a double line:
This would give a very bad result when laser engraving.
Is there a way to get a single line?
I've been trying to interpolate between lines, but it was a dissaster
thanks
If you just want the outline
Hi,
I need all the regions
But what you did it is very nice. How have you done it?
Actually, your lines are smoother, which is better (less zigzags, more clarity)
The first one was using the Bucket Fill tool using the Alpha channel.
The second one was Trace Bitmap - Center Line Tracing - single pass with all options disabled. Then node edit the names out.
Something like this - it won't be perfect. If you overlay all 3 you will see the differences.
Do you plan to etch and cut? I would do a Path Effect>Offset with a 10mm setting on the Blue Outline.
Great tips.
About the bucket, I don't understand what you mean with the Alpha Channel. I tried with a rectangle around the map and then the bucket command works
The Center Line Tracing tool is very nice.I didn't know about it. The result is good, but one needs to correct a bit (there are some gaps, some "steep" corners) but overall it is fine.
The idea is cutting the perimeter and mark the inner regions. Why the 10mm offset?
thank you very much for all
When you select the Paint Bucket tool you can select the type of fill.
10mm offset - I assumed you were also going to laser cut as well as engrave.
The Center Tracing tool. Just came across an issue with that. Where it tends to chop at the perimeter. Lets see if I can find the post that can correct that issue.
Ok- I found the fix for Centerline Tracing if the result is getting "chopped" on one or more sides.
https://gitlab.com/inkscape/inbox/-/issues/11763