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Tree generation for daylight simulations

gen_tree

gen_tree is an open-source python program (published on Github) to generate tree crowns for daylight simulations. Library methods generate primitive geometries like hemispheres, cones, ellipsoids that represent shapes of tree crowns based on a gap percentage. Gap percentage is the measure of light transmittance of a tree crown, the ratio of gaps between leaves divided by the total area of the tree crown (including all leaves and gaps).

gen_tree on GitHub
20,000 uniformly distributed random points on a hemisphere filled consequently with triangle meshes to cover approximately approximately 90% off the surface area to maintain a measured 10.7% vertical gap percentage.
Different variations of clustering density of a tree crown.
Uniformly distributed random points (top) and filled triangulated meshes on Ellipsoid Oblate, Ellipsoid Prolate, Cone (bottom) modelled for 10.7% gap percentage.
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