[mkgmap-dev] [PATCH v1] Avoid needless multipolygon handling

Sun Apr 10 20:51:00 BST 2011

The patch (based on an idea of Marko) checks if a multipolygon and its 
potential outer members has tags that are defined in the style. If not 
the multipolygon processing is not performed.

This reduces processing time for small styles with a limited set of tags.

The effect is not as big as one might expect. Although the style 
contains one tag only (example maxheight=*) the 53 tags defined in 
resources/styles/builtin-tag-list are additionally loaded. This reduces 
the number of skipped multipolygons quite much.
Anyhow a little improvement is an improvement :-)

WanMil
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