A build including the patch can be obtained here: http://files.mkgmap.org.uk/detail/146 WanMil
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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