This module implements a simple algorithm to display a graph(mainly a tree) level by level, using only Tkinter.
- class pyworkflow.gui.graph.LevelTree(graph)[source]
Class to render the Graph in a Canvas.
- paint(createNode=None, createEdge=None, maxLevel=9999, usePositions=False)[source]
Paint the Graph, nodes will be positioned by levels. Params:
canvas: the canvas object to paint the graph. createNode: function to build the Item that represents a Node.
- the Item created should have the following methods:
getDimensions: return the width and height moveTo: change the position of the Item
createEdge: function to build an Edge connection two Nodes usePositions: if this is True, use the nodes positions without
If createNode and createEdge are None, the default ones will be used, that requires the setCanvas method had to be called first.