# Visualization of the subtopic trees The subtopic trees can be visualized as graph using the ```vis.js``` library. Thereby the leaf nodes of the subtopic tree are colored in blue while the junction nodes are colored in blue. The graphic below shows an overview over the ```subd``` tree. The root node, which is colored in pink can be seen in the right center. ![](./images/subdivision_tree_overview_anoted.png)The image shows the irregular structure of the subtopic tree generated by the subdivision algorithm. Some branches are longer than others ![](./images/fr_as_sb_10_overview_anoted.png)[Code](https://github.com/gratach/master-experimental/blob/a04ad9441d2867204cc33e3f8be470cd85cdd0a4/visualize_subtopic_trees.ipynb)