[graph-tool] get_hierarchy_control_points return values

Tiago de Paula Peixoto tiago at skewed.de
Mon Nov 30 19:24:09 CET 2020

Am 30.11.20 um 19:08 schrieb AntoineR:
> Ok, that seems right, but still, there is something that I do not understand.
> I followed the piece of code of the documentation of
> graph_tool.draw.get_hierarchy_control_points
> <https://graph-tool.skewed.de/static/doc/draw.html?highlight=get_hierarchy_control_points#graph_tool.draw.get_hierarchy_control_points>
> , and when I print the length of the map /cts/ I get value that are not
> divisible by 6 (86,50,38,62...), so there is one more point coming out of
> the function /get_hierarchy_control_points/ and used in /graph_draw/.

Yes, this is because of a boundary condition: The last point does not 
need to be specified, just as the first one. If it's given, it's 
ignored. The function get_hierarchy_control_points generates the final 
point because it's slightly easier in the code.

Tiago de Paula Peixoto <tiago at skewed.de>
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