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I am trying to draw specific portions of a Petri Net with TikZ. For parts of the subnet where the structure does not matter to me I'd like to use a cloud node filled with parallel lines (inspired by my mechanics lecture).

How can I achieve this with TikZ? The regular cloud node shape is being displayed as s simple circle in my file. Here is how I declare my cloud node:

\node[draw, cloud, cloud puffs = 10](cloud){};
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up vote 16 down vote accepted

You need to load the appropriate libraries:



    cloud puffs = 10,
    pattern=north east lines,
    minimum width=1cm,
    minimum height=0.75cm
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I must have some conflicting packages as your sample still gives me an ellipse with a nice pattern... – DodoFXP Feb 18 '12 at 12:36
Found the overriding style. It works now. Thanks! – DodoFXP Feb 18 '12 at 13:06

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