A chance to focus on graph drawing itself, forget APIs and other stuffs.
You just become an artist in graph drawing once you start using Graphviz-Artist.
If you don’t have the demand of fine-grained controling upon generated graphs, the learning curve of graphviz-artist is actually horizontal.
This package provides a higher-level encapsulation for the python package graphviz, and you might want to have a try at the latter.
- Install Graphviz.
- pip install graphviz-artist
import graphviz_artist as ga # make a graph g = ga.Graph() # make nodes n1 = g.new() n2 = g.new() n3 = g.new() # (>), (==) and (<) could create edges for graphs. # n2 > n3 / n3 < n2 : there is an edge n2 -> n3 # (==) will be introduced later, as it's only meaningful to directed edges. _ = n1 > n2 > n3 > n1 g.view()
import graphviz_artist as ga # use attr module to see which Graphviz Attributes # could be auto-completed. import graphviz_artist.attr as attr # use HorizontalGraph g = ga.Graph(attr.HorizontalGraph) # `attr.Shape("<name>")` to specify the shape of nodes. n1 = g.new(attr.Label('hey'), attr.Shape.diamond) n2 = g.new(attr.Label('hey'), attr.Shape.hexagon) n3 = g.new(attr.Label('you'), attr.Shape.star) # `attr.Directed()` makes a directed edge. directed = attr.Directed() # `attr.Label` to specify the text that edges display edge_label = attr.Label("passed_here") # `attr.Penwidth` to decide the width of edge glyph. edge_size = attr.Penwidth(2.) # in `a < b[b_to_c_attrs...] > c`, the edge `b -> c` will have attribute `b_to_c_attrs`. _ = n3[directed, edge_label, edge_size] > n1[directed] == n2 > n3 g.view()
import graphviz_artist as ga import graphviz_artist.attr as attr # make a graph g = ga.Graph(directed=True) new = g.new # decl nodes false = new(attr.Label("False")) true = new(attr.Label("True")) not_ = new(attr.Label("not")) and_ = new(attr.Label("and")) unary1 = new(attr.Label("unary")) unary2 = new(attr.Label("unary")) binary = new(attr.Label("binary"), attr.Width(2), attr.Shape.box) expr = new(attr.Label("expr")) # build graph _ = false > unary1 < not_ _ = true > unary2 _ = and_[attr.Label('Op')] > binary # XLabel: For edges, the label will be placed near the center of the edge. _ = unary1[attr.XLabel("Left operand")] > binary _ = unary2[attr.XLabel('Right operand')] > binary _ = binary > expr g.view()
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