TimoTree - A tree generator

This is a simple and highly customizable tree fractal generator for psychophysical experiments.

Requirements:

• python 2.7
  • PIL
  • turtle
  • string
  • os
  • numpy

Examples

Usage

just call main.py from the command line! Numerous settings can be changed to alter the tree's appearance:

Basic Parameters

- numIters             : maximum number of iterations (=recursive calls)
- treeColourBase       : colour of tree

Branches

Stem

- numStem              : number of iterations without leaves
- stemColourVari       : variability in colour of stem
- stemLength           : length of stem
- stemWidthFactor      : proportional width of stem

Angles

- branchAngleBase      : angle between child edge and parent edge
- branchAngleRange     : range of possible angles	

Colours

- branchColourVari     : variability in colour of branches

Decrease

- branchShrinkage      : reduction in branch-size on each iteration
- branchShrinkageRange : range of shrinkage noise
- branchWidthFactor    : proportional width of potentially leafy branch
- branchMin            : minimum branch length	

Probabilities

- probaLeftBranch      : branch to the left
- probaStraightBranch  : proceed with straight line
- probaRightBranch     : branch to the right

Leaves

Number, Size and Position

- leafNum              : max Num of leaves per branch
- leafSize             : size of leaf image
- leafSizeVariance     : variance in leaf size
- leafFractionBehind   : percentage of leaves that go behind tree

Brightness

- leafMinBrightness    : minimal brightness of leaves
- leafMaxBrightness    : maximal brightness of leaves

Probabilities

- probaFruit           : probability of fruit growth
- probaLeaf            : probability of leaf growth