[mkgmap-dev] [PATCH v1] garmin_area() style function

Thu Jul 11 22:04:41 BST 2013

The patch adds a new style function called garmin_area().
garmin_area() returns the size of an area in garmin-units ^2. It works 
for polygons only. Unclosed ways return 0.

Please test it and let me know:
* Do you have a better name?
* What to do with multipolygons? Should garmin_area() return the 
multipolygon size for all splitted parts of the mp?
or: Should it be possible to use garmin_area() in the relations file? In 
this case it would be possible to add tags to all members which can then 
be used in the polygons file.
Example:
type=multipolygon & building=yes & garmin_area() > 20000
{ apply
   {
     set mkgmap:bigbuilding=yes;
   }
}

Have fun!
WanMil

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