Herbert Voß, Dominique Rodriguez, and Michael Sharpe submitted an update to the pstricks-add package.
Version number: 3.61 License type: lppl
Summary description: Collects together examples that have been posted to the pstricks mailing list
Announcement text: ----------------------------------------------------------------------
v 3.61 2013-09-18 - added pstContour for contour plots
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This package is located at http://mirror.ctan.org/graphics/pstricks/contrib/pstricks-add
More information is at http://www.ctan.org/pkg/pstricks-add
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Thanks for the upload.
For the CTAN Team Petra Rübe-Pugliese