[mkgmap-dev] [PATCH v1] Precompiled sea generator

Wed Jun 20 21:50:48 BST 2012

> Hi,
>
> attached is the generator for precompiled sea data.
>
> Additionally you need some geotools libs (they are not downloaded by
> ivy). You can download it from
> http://sourceforge.net/projects/geotools/files/
> The required libs are:
> commons-pool-1.5.4.jar
> gt-api-2.7.5.jar
> gt-cql-2.7.5.jar
> gt-data-2.7.5.jar
> gt-main-2.7.5.jar
> gt-metadata-2.7.5.jar
> gt-opengis-2.7.5.jar
> gt-referencing-2.7.5.jar
> gt-shapefile-2.7.5.jar
> jsr-275-1.0-beta-2.jar
> jts-1.11.jar
> vecmath-1.3.2.jar
>
>
> The generator can be started with
> java -cp <mkgmap classes dir>
> uk.me.parabola.mkgmap.sea.optional.PrecompSeaGenerator <shapefilename>
> <projection> <outputdir>
>
> shapefilename: the filename of the .shp file
> projection: WGS84 or any EPSG:xxxx
> outputdir: the directory to store the precompiled files
>
> The generator is not included in the mkgmap.jar file because the
> geotools libs are not automatically downloaded by ivy. If anyone can
> give an ivy dependency for the libs it is possible to change that.
>
> There are some performance settings that might be changed on your
> computer to better meet the memory/CPU settings of your computer. Have a
> look at the PrecompSeaGenerator constructor. The defined settings are ok
> for 3gb memory (-Xmx3g).
>
> WanMil
>

I forgot to add one important fact:
The shapefile must contain the land polygons and not the sea polygons!!

You can download them from http://openstreetmapdata.com/data/land-polygons.

WanMil