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Delaunator.triangulate() returns an array of triangle vertex indices (each group of three numbers forms a triangle). All triangles are directed counterclockwise.
You can then use these indices to get the coordinates of each triangle:
(0..triangles.length-1).step(3)do |i|
ax,ay=points[triangles[i]]bx,by=points[triangles[i + 1]]cx,cy=points[triangles[i + 2]]# (ax, ay), (bx, by), (cx, cy) are your triangle points
...
After implementing your own render function you can show the edges of the Delaunay triangulation:
Development
After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.