[mkgmap-dev] area_size() function to be used in points file

Wed Apr 18 22:13:26 BST 2018

Hi Joris,

the patch was for the use in the lines file, and I think I've committed it unchanged:
http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4159

I have no idea why the generated POI for way 29044917  has different attributes, the patch was for way
members of multipolygon relations. I don't even understand how the POI can have the mkgmap:cache_area_size tag.
The tag is added by the code that handles multipolygons and by the style function area_size, which only works with ways.
My current understanding is that the POI is generated before the evaluation of the style, so I don't see a way that the tag is
assigned by mkgmap. I assume that you used the same input files and options for the above results?

Gerd

________________________________________
Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von Joris Bo <jorisbo at hotmail.com>
Gesendet: Mittwoch, 18. April 2018 22:39:40
An: Development list for mkgmap
Betreff: [mkgmap-dev] area_size() function to be used in points file

Hello Gerd

A while a go (30-9-2017) you made a patch to make the usage of  the area_size() function available in the points-file through the mkgmap:cache_area_size  value.
I used it to only display names and symbols on bigger area’s to avoid cluttering.

In the latest releases up to 4165 you mentioned fixes with ‘area_size()’ being not  yet branched and some others  which are branched. I lost the overview a little bit.

I tested the special build of 30-9-2017 which does make the mkgmap:cache_area_size  value available in the points file. (Example 1) and compared it to the mkgmap build 4165 (Example 2) which does not.

Does this mean this feature is not branched or can I achieve a similar result else way?
Thanx in advance

Kind regards
Joris

mkgmap 30-9-2017 Example 1
Node generated from 29044917 [building=yes, jbprocessedpoints=true, leisure=sports_centre, mkgmap:admin_level2=NOR, mkgmap:admin_level4=Oslo, mkgmap:admin_level7=Oslo, mkgmap:admin_level9=Nordstrand, mkgmap:area2poi=true, mkgmap:cache_area_size=2658.2913818359375, mkgmap:country=NOR, name=Ekeberghallen] all
Way 29044917 [building=yes, jbprocessedlines=true, leisure=sports_centre, mkgmap:admin_level2=NOR, mkgmap:admin_level4=Oslo, mkgmap:admin_level7=Oslo, mkgmap:admin_level9=Nordstrand, mkgmap:cache_area_size=2658.2913818359375, name=Ekeberghallen] all
Way 29044917 [building=yes, jbprocessedlines=true, jbprocessedpolygons=true, leisure=sports_centre, mkgmap:admin_level2=NOR, mkgmap:admin_level4=Oslo, mkgmap:admin_level7=Oslo, mkgmap:admin_level9=Nordstrand, mkgmap:cache_area_size=2658.2913818359375, mkgmap:city=Nordstrand, mkgmap:country=NOR, mkgmap:region=Oslo, name=Ekeberghallen] all

mkgmap-4165 Example 2
Node generated from 29044917 [building=yes, jbprocessedpoints=true, leisure=sports_centre, mkgmap:admin_level2=NOR, mkgmap:admin_level4=Oslo, mkgmap:admin_level7=Oslo, mkgmap:admin_level9=Nordstrand, mkgmap:area2poi=true, mkgmap:country=NOR, name=Ekeberghallen] all
Way 29044917 [building=yes, jbprocessedlines=true, leisure=sports_centre, mkgmap:admin_level2=NOR, mkgmap:admin_level4=Oslo, mkgmap:admin_level7=Oslo, mkgmap:admin_level9=Nordstrand, mkgmap:cache_area_size=2658.2913818359375, name=Ekeberghallen] all
Way 29044917 [building=yes, jbprocessedlines=true, jbprocessedpolygons=true, leisure=sports_centre, mkgmap:admin_level2=NOR, mkgmap:admin_level4=Oslo, mkgmap:admin_level7=Oslo, mkgmap:admin_level9=Nordstrand, mkgmap:cache_area_size=2658.2913818359375, mkgmap:city=Nordstrand, mkgmap:country=NOR, mkgmap:region=Oslo, name=Ekeberghallen] all