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tracespace / gerber-to-svg

gerber-to-svg development moved to tracespace/tracespace
https://github.com/tracespace/tracespace
MIT License
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SVG for some gerbers not correctly displayed in Inkscape #40

Closed andersonls closed 6 years ago

andersonls commented 6 years ago

Hello, I'm having problems with some generated SVG using this tool. The generated SVGs are missing some elements with some gerbers. Opening the SVG with Inkscape i found that the elements seems to be being draw but with inverted colors.

Below you can find the Gerber used and the generated SVG (with gerber2svg) and PNG (with gerbv)

Gerber file: gerber.txt

Excpected result (generated with gerbv): excpected

Actual result (generated with gerber2svg): generated-svg.txt

mcous commented 6 years ago

Hi, sorry to hear you're having an issue! After spending a few minutes looking for differences between the gerbv and gerber-to-svg output, I was unable to find anything missing. Would you mind annotating the png below to point them out for me?

gerber-to-svg output run through svg2png:

gerber

andersonls commented 6 years ago

That's weird, it seems like inkscape is not converting the SVG properly.

Do you know any other tool for converting SVG to high resolution bitmaps (2000 DPI and higher)?

svg2png is taking almost 2 minutes to convert in 2000 DPI while inkscape takes 35 sec.

PNG generated with inkscape: test

kasbah commented 6 years ago

We've seen Inkscape compatibility issues before: https://github.com/tracespace/pcb-stackup/issues/29. If you can pin down the exact issue I'd be interested as I also use Inkscape to convert to PNG on Kitspace.

andersonls commented 6 years ago

I highlighted the images bellow the elements that are missing when converting to PNG with Inkscape. If I open the SVG with Inkscape and ungroup the element you can see that they are present but for some reason Inkscape is drawing a black polygon on top of them.

Inskcape PNG missing elements: inkscape

Inkscape interface: inkscape2

Excpected result using gerbv: excpected

mcous commented 6 years ago

@andersonls the SVG output of gerber-to-svg appears to be correct. Like @kasbah said, this seems to be a problem with Inkscape not displaying the SVGs properly. I'm not an Inkscape user myself, but PRs to improve Inkscape compatibility are definitely welcome and helpful.

As for SVG to PNG conversion: svg2png uses phantomJS, which isn't my favorite thing in the world. You may have luck using electron or Puppeteer, both of which could (theoretically) use Chrome to generate a PNG.

andersonls commented 6 years ago

Ok, thank you. I just started messing up with RS-274X and SVG, but if I can find the issue i'll submit a PR.