[Tilesathome] Faster batik rendering

[Juergen Buchner]

Hi,

on some tilesets batik still generates an empty png. Here an example:

D:\tilesAtHome>perl tilesGen.pl xy 2148 1387 12
- Using working directory D:\temp\
- Uploading with username "juebuchner at googlemail.com"
- Configured Layer: captionless
- Configured Layer: tile
- Configured Layer: maplint
- zip is present
- Using Batik in jar mode
- rendering using or/p
- going to use pngcrush
- Pngcrush version 1.6.4
- pngnq version 0.5
- Using http://tah.openstreetmap.org/Request/take/ for Requests
This is version 9513 (Rapperswil) of tilesgen running on MSWin32, ID: 1069023232

[#1   0% jobinit] Doing tileset 2148,1387 (zoom 12) (area around 50.092385,8.833
008)
[#1   0% Preproc] Downloading: Map data for captionless,tile,maplint to D:\temp\
[#1   0% Preproc] Checking for UTF-8 errors in D:\temp\data-18528.osm...
[#1 100% captionless] Finished 2148,1387 for layer captionless
[#1   2% tile] Splitting D:\temp\18528\18528_part-2sztYa.png (2 x 1)...
ERROR: Failed to read in file D:\temp\18528\18528_part-2sztYa.png

SplitImageX:MissingFile encountered, exiting