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README.md

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 # three-edge-projection
 
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+[![build](https://img.shields.io/github/actions/workflow/status/gkjohnson/three-edge-projection/node.js.yml?style=flat-square&label=build&branch=main)](https://github.com/gkjohnson/three-edge-projection/actions)
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+
 Edge projection system based on [three-mesh-bvh](https://github.com/gkjohnson/three-mesh-bvh/) to extract visible projected lines along the y-axis.
 
 # Examples