# Processing to Blender to Inkscape to Axidraw: How To Remove Hidden 2D Lines

**URL:** <https://discourse.processing.org/t/processing-to-blender-to-inkscape-to-axidraw-how-to-remove-hidden-2d-lines/30450>\
**Category:** Processing\
**Created:** [June 2, 2021, 7:21pm UTC](https://discourse.processing.org/t/processing-to-blender-to-inkscape-to-axidraw-how-to-remove-hidden-2d-lines/30450 "2021-06-02T19:21:53Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![micycle](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/micycle/32/201_2.png) [@micycle](https://discourse.processing.org/u/micycle)\
**Post date:** [June 2, 2021, 8:20pm UTC](https://discourse.processing.org/t/processing-to-blender-to-inkscape-to-axidraw-how-to-remove-hidden-2d-lines/30450/2 "2021-06-02T20:20:39Z")

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You can subtract the upper shape from lower one. Someone else was trying to do the same thing recently…

> [@2D lineart - culling hidden lines for SVG output / Plotting](https://discourse.processing.org/t/2d-lineart-culling-hidden-lines-for-svg-output-plotting/30031/2):
>
> Ok, I think [GitHub - micycle1/PGS: Processing Geometry Suite](https://github.com/micycle1/PGS) is a way forward - Here’s my quick check The boxes on the left have fills which wouldn’t work on the plotter. The boxes on the right are made of : The foreground box (green), and the subtraction of the foreground box from the background box (red) No fill() used on the right hand side - So a bit of playing around to progressively add one house at a time to a resulting shape. Still would be keen to hear how anyone else would approac…

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