📅 2023-11-13 — Session: Enhanced Graphviz for Course Prerequisite Visualization
🕒 17:55–18:59
🏷️ Labels: Graphviz, Visualization, Course Prerequisites, Python, Graph Layout
📂 Project: Dev
⭐ Priority: MEDIUM
Session Goal
The session aimed to enhance the visualization of course prerequisites using Graphviz, focusing on the CBC courses and their representation within a graph.
Key Activities
- Identified and addressed an error in graph generation related to CBC courses.
- Outlined steps for creating course prerequisite graphs using Graphviz, including installation and data preparation.
- Modified Graphviz code to correctly represent CBC courses as a cohesive subgraph, using invisible edges for proper linkage.
- Improved graph layout by repositioning nodes and using invisible anchors, ensuring the graph fits an A4 portrait layout.
- Explored techniques for controlling node positioning and subgraph styling, including setting background colors and using layers for complex visualizations.
- Discussed Graphviz’s output format options and limitations of the
layersattribute for non-PostScript formats.
Achievements
- Successfully implemented a method to treat the CBC subgraph as a single node linked to ‘E. Media’.
- Enhanced the visual layout of the graph to improve clarity and organization.
Pending Tasks
- Further exploration of alternative methods for layering in Graphviz to overcome current limitations.
- Consideration of additional output formats for better visualization quality.