Grasshopper

algorithmic modeling for Rhino

Complete dymaxion projection of the world map. Lot of manual work, lot of Grasshopper scripting, project from start to finish took about 4 hours. Steps:

1. Download coastal vector data from USGS server.
2. Write importer VB script to parse dat files and create Grasshopper polylines.
3. Manually remove country border curves from coastal curves.
4. Manually join remaining curves into as many closed loops as possible.
5. Remove short polylines and short segments from long polylines.
6. Map polylines onto sphere.
7. Project spherical polylines onto manually created icosahedron using a VB script.
8. Split polylines along facet boundaries and create groups of all polyline segments that fall within a single triangle.
9. Manually unfold the icosahedron.

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Comment by Rémy Maurcot on April 17, 2013 at 2:39am

You can use a geographic transformation of a UTM to geoid.

Comment by taz on February 13, 2012 at 1:45pm

10. Printable version for all the kids at home to make themselves!

Comment by Behnood Eghbali on February 12, 2012 at 1:43am

You did all these things within 4 hours?!!!! WoOoOW!!!

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