ManimCommunity/manim

Graph theory: Weighted edges, loop edges

Open

#3153 opened on Feb 9, 2023

View on GitHub
 (5 comments) (2 reactions) (0 assignees)Python (17,820 stars) (1,378 forks)batch import
good first issuenew feature

Description

Hello. I would like to animate several algorithms used in computer science. I've noticed it is not possible to add loop edges (edge from a node to itself) and it is not possible to assign weights to edges (decimal numbers). Can you add this functionality?

Contributor guide

Tech stack
python
Domain
api
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic understanding of Manim graph modulePython knowledge
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
Examine the current Graph class implementation in manim, likely in the 'graph.py' module. Investigate how edges are stored and rendered; add support for self loops by modifying the edge drawing logic to handle loops (e.g., using bezier curves). For weighted edges, extend the edge data structure to hold a weight attribute and display it as a label. Check existing comments in issue #3153 for any suggested approaches. No linked PRs or assignees, so this is open for a contributor.