Graph Layout Algorithms: GDL Source Code
» Example graphs
aiSee offers 15 basic layout algorithms, including a specialized version for
trees.
Here is a small demonstration. Switching between layout algorithms is done as
follows:
1. When aiSee is running, type "l", followed by right-clicking
2. Select an algorithm and click on OK.
You can also change the first line of the source file using a text editor, and then
reload (type "g").
graph:{title: "graph layout algorithms"
layoutalgorithm: minindegree
node: {title: "St" label: "Start of All"}
node: {title: "01"} node: {title: "02"}
node: {title: "03"} node: {title: "04"}
node: {title: "05"} node: {title: "06"}
node: {title: "07"} node: {title: "08"}
node: {title: "09"} node: {title: "10"}
edge: {source:"St" target:"01"}
edge: {source:"St" target:"02"}
edge: {source:"St" target:"03"}
edge: {source:"St" target:"04"}
edge: {source:"St" target:"05"}
edge: {source:"St" target:"06"}
edge: {source:"St" target:"09"}
edge: {source:"01" target:"03"}
edge: {source:"02" target:"04"}
edge: {source:"03" target:"05"}
edge: {source:"06" target:"07"}
edge: {source:"07" target:"08"}
edge: {source:"08" target:"St"}
edge: {source:"05" target:"10"}
edge: {source:"09" target:"10"}
}
| |
|
GDL offers a vast collection of specifications enabling
even such a simple graph to be more illustrative.
graph: {title: "graph layout algorithms"
layoutalgorithm : minindegree
finetuning : yes
scaling : 2.0
yspace : 50 //=================================
node.textcolor : 0 // aiSee -- Graph Visualization
node.borderwidth: 0 // © Copyright 2000-2001
node.fontname : "helvB18" //AbsInt Angewandte Informatik GmbH
node.shape : circle // http://www.aisee.com
node.width : 30 // aisee@absint.com
node.height : 30 //=================================
edge.arrowsize : 8
edge.color : 43
arrowmode : free
splines : yes
port_sharing : no
colorentry 1 : 0 0 120 colorentry 7 : 160 51 170
colorentry 2 : 255 0 0 colorentry 8 : 32 42 219
colorentry 3 : 232 126 27 colorentry 9 : 229 45 113
colorentry 4 : 41 199 216 colorentry 10 : 39 229 99
colorentry 5 : 48 155 155 colorentry 42 : 186 7 7
colorentry 6 : 55 142 51 colorentry 43 : 100 0 0
node: { title : "S"
label : "Start"
color : 42
width : 100
shape : box
borderwidth : 5
borderstyle : dotted
bordercolor : 42}
node: {title: "1" color: 1} node: {title: "6" color: 6}
node: {title: "2" color: 2} node: {title: "7" color: 7}
node: {title: "3" color: 3} node: {title: "8" color: 8}
node: {title: "4" color: 4} node: {title: "9" color: 9}
node: {title: "5" color: 5} node: {title: "0" color: 10}
edge: {source: "S" target: "1"}
edge: {source: "S" target: "2"}
edge: {source: "S" target: "3"}
edge: {source: "S" target: "4"}
edge: {source: "S" target: "5"}
edge: {source: "S" target: "6"}
edge: {source: "S" target: "9"}
edge: {source: "1" target: "3" color: 1}
edge: {source: "2" target: "4" color: 2}
edge: {source: "3" target: "5" color: 3}
edge: {source: "6" target: "7" color: 6}
edge: {source: "7" target: "8" color: 7}
edge: {source: "8" target: "S" color: 8}
edge: {source: "5" target: "0" color: 5}
edge: {source: "9" target: "0" color: 9}
}
» Example graphs
» aiSee.com: The effect of the layout algorithms
