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528
questions
5
votes
3
answers
2k
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Converting Ordnance Survey raster maps to WGS84 webmap tiles
I would like to generate Google/Bing-like map tiles from Ordnance Survey's 1:25000 and 1:50000 raster maps, which are provided as 4000x4000 UK national grid tiles (GeoTIFF).
A sample tile can be ...
- 221
1
vote
1
answer
628
views
gdalwarp - strange result
I have an input jpg image (sat thumbnail) and I know a number of gcps for this image. I want to reproject the jpg to have a north up image. This is what I do:
./gdal_translate -of GTiff -a_srs EPSG:...
- 573
7
votes
1
answer
2k
views
Applying gdalwarp cutline to PostGIS data
I can not figure out how I directly can read a polygon into gdawarp's -cutline argument.
My current approach is:
ogr2ogr -f "ESRI Shapefile" mydata.shp PG:"user=myuser dbname=gisdb" -sql "select * ...
- 1,143