A javascript that allow to make nice railroad designs, for those seriously playing with their children that want topologically optimized designs...

Obviously under construction!

Railroad Simulation

Presets:	Demo... Koch Island Migrating Island Square Madness Drunk Square Sierpinsky Triangle Triangular Pattern Dragon Square Pattern Simple Plant Herb 2 Simple Tree Tree Tree 2 Custom... Using this menu will replace all data below!			More Info...
javascript provided by , 2006
Quick Controls:
Rules
Grammar			Transformation Rules
F: Draw Line Of Length step f: Move a distance of step without drawing +: Angle clockwise of angle degrees -: Angle counter-clockwise of angle degrees [: Store current position (and angle) ]: Recall last stored position (and angle) X, Y, Z: No action (but can be used in the transformation rules) L, l, P, B, T: goodies for plants... R(block1,block2): One of the blocks (chosen randomly) is executed. All other characters are ignored.			Will be applied iteratively Number of Iterations times. For example, the rules {F->F-fF+;f->f} will give Iteration 1: F Iteration 2: F-fF+ Iteration 3: F-fF+-fF-fF+ Iteration 4: ...
System Parameters
Initial String:			Iterations: Adapt Step & Go...
F ->			f ->
X ->			Y ->
Z ->
Rendering Options
Step (distance):			Angle (degree):
Start Hor.:			Main (trunk) color:
Start Vert.:			Leaves ('L') color:
Line Width:			Fruits ('P') color:
Iteration Resize Factor:			Draw "natural" Background...