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// This one is a direct translation of one of Chris Coynes CFDG examples:
// http://www.chriscoyne.com/cfdg/page2.php
set maxdepth 150
FOREST
rule FOREST {
SEED
{ x -20 } SEED
{ x -40 } SEED
}
rule SEED { BRANCH }
rule SEED { { rz 1 } BRANCH }
rule SEED { { rz -1 } BRANCH }
rule SEED { { rz 2 } BRANCH }
rule SEED { { rz -2 } BRANCH }
rule SEED { FORK }
rule BRANCH { RIGHTBRANCH }
rule BRANCH { LEFTBRANCH }
rule LEFTBRANCH w 4 { BLOCK { y 0.885 rz 0.1 s 0.99 } LEFTBRANCH }
rule LEFTBRANCH w 4 { BLOCK { y 0.885 rz 0.2 s 0.99 } LEFTBRANCH }
rule LEFTBRANCH w 4 { BLOCK { y 0.885 rz 4 s 0.99 } LEFTBRANCH }
rule LEFTBRANCH { BLOCK FORK }
rule RIGHTBRANCH w 4 { BLOCK { y 0.885 rz -0.1 s 0.99 } RIGHTBRANCH }
rule RIGHTBRANCH w 4 { BLOCK { y 0.885 rz -0.2 s 0.99 } RIGHTBRANCH }
rule RIGHTBRANCH w 4 { BLOCK { y 0.885 rz -4 s 0.99 } RIGHTBRANCH }
rule RIGHTBRANCH { BLOCK FORK }
rule BLOCK { box }
rule FORK { BRANCH { s 0.5 rz 40 } BRANCH }
rule FORK { BRANCH { s 0.5 rz -40 } BRANCH }
rule FORK { BRANCH { s 0.5 rz -20 } BRANCH }
rule FORK { { s 0.7 y 0.1 rz -20 } BRANCH { s 0.7 y 0.1 rz 20 } BRANCH }
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