There is also another way to generate the bounds. It is possible to cut the planet into pieces. Create the bounds for the pieces and merge the bounds afterwards. This is how I create bounds. I can create the bounds with cutting the planet into 3 pieces on a laptop with 4GB. You can merge bounds with the following command: java -cp mkgmap.jar uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryMerger <boundsdir1> <boundsdir2> <mergeddir> The command merges the bounds from boundsdir1 and boundsdir2 and put the merged bounds to mergedir. I think it would be easier if the BoundaryPreparer accepts multiple input files and does the merging automatically. Put it on the TODO... WanMil
Hi Thorsten,
this reminds me on the osmid_v1.patch using fastutil.jar It is esp. usefull in this case because the memory requirements are caused by the huge number of coords.
@Steve: Do you still plan to add it ?
Gerd
Thorsten Kukuk wrote
Hi,
On Thu, Feb 14, Rich wrote:
as per http://wiki.openstreetmap.org/wiki/Mkgmap/help/options#Using_preprocessed_bo... , i tried to generate bounds myself from a planet boundary extract (prepared with osmconvert/osmfilter like in the instructions on the same page).
java -cp mkgmap.jar uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryPreprocessor
<inputfile>
<boundsdirectory>
that run out of the heap space of 2300 megs. before i try experimenting further, how much heap space is required for creating planet bounds from boundary extract ? :)
You need at least 8GB of free RAM. And I would suggest Sun/Oracle Java, not IBM Java or openjdk.
Thorsten
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