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Dear Thorsten,

I have prepared an example with just 3 circles. It was really difficult. I have calculated each intersection point and angle.

I wonder that is it possible to get same output easily?

Emrah

\listfiles
\documentclass{article}
\usepackage{pstricks}

\begin{document}
\begin{pspicture ...

Hi all,

I would like to colored the regions formed by many circles in the plane such a way that any two regions that share a common boundary arc will be colored differently.

It is very difficult task via \pscustom command. Because, first I have to calculate the each intersection point and angles ...