100217 - sun path geometry

Here is a Rhino model of sun paths for New York City's latitude for summer solstice, equinox, and winter solstice.  You'll notice that each hour is divided into three segments of 20 mins. each.  So bring this into your landscape model, scale as necessary and render a sequence for each of the three days by placing a directional light on each point aimed toward the center of the dome. 


This will be more labor intensive then using Rhino's sun animation tools, but will yield accurate results.  Hopefully it will give you a better idea of sun path geometry.  Let me know if you find any problems with the model.

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