Pygraphviz-警告：不支持重叠值“棱镜” - 忽略 warnings.warn(b"".join(errors).decode(self.encoding), RuntimeWarning)答案

【问题标题】：Pygraphviz- Warning: Overlap value "prism" unsupported - ignored warnings.warn(b"".join(errors).decode(self.encoding), RuntimeWarning)Pygraphviz-警告：不支持重叠值“棱镜” - 忽略 warnings.warn(b"".join(errors).decode(self.encoding), RuntimeWarning)
【发布时间】：2021-06-03 00:07:25
【问题描述】：

我是 Graphviz 的新手，我正在使用以下代码尝试一个包含 7315 条边的大图。

import pandas as pd
import pygraphviz as pgv
g = pgv.AGraph()

ds = pd.read_csv("G:\cit-Patents_7315_1037462.txt",header=None)

ds.rename(columns={0:'col1'},inplace = True)
ds.rename(columns={1:'col2'},inplace = True)

for index, row in ds.iterrows():
    g.add_edge(str(row["col1"]), str(row["col2"]))
g.layout(prog='fdp')

g.draw('7315.svg')

调用 g.layout() 时，会出现以下警告。

c:\users\new\appdata\local\programs\python\python39\lib\site-packages\pygraphviz\agraph.py:1390: RuntimeWarning: Warning: Overlap value "prism" unsupported - ignored
Warning: Overlap value "prism" unsupported - ignored
Warning: Overlap value "prism" unsupported - ignored
Warning: Overlap value "prism" unsupported - ignored
Warning: Overlap value "prism" unsupported - ignored
Warning: Overlap value "prism" unsupported - ignored
Warning: Overlap value "prism" unsupported - ignored

  warnings.warn(b"".join(errors).decode(self.encoding), RuntimeWarning)

我被困在这里，无法理解如何解决问题。感谢您提供的任何帮助。在此先感谢！

【问题讨论】：

标签： python graphviz large-data graph-visualization pygraphviz

【解决方案1】：

此错误消息意味着您的 graphviz 安装缺少 GTS 库（请参阅 https://graphviz.org/download/source/ 的依赖项）。如何安装这个库取决于你的操作系统，可以查看http://gts.sourceforge.net/install.html。

【讨论】：