0
votes
0answers
6 views

using gdal2tiles 2 tile a png longlat. keep getting wrong coordinate box in google kmls

I have tried lots of variations, but can't seem to get gdal2tiles to do what it used to do. Prior version? images are 60N to 60S and 180W to 180E 9000 pix x 3000 lines. gdal2tiles keeps outputting ...
0
votes
1answer
24 views

Convert a KML ImageOverlay to World Files with GDAL

I have many raster outputs from an Open Source radio transmission topographic path tool called SPLAT, georeferenced in KML image overlay format. I have figured out an easy way to use tools to ...
0
votes
0answers
16 views

gdal2tiles raster symbology

I am using gdal2tiles to create kmlsuperoverlay of a raster. Although displaying the dataset in the correct location - the contrast is very low and so it is not feasible to see the features. When I ...
0
votes
0answers
27 views

gdal2tiles produces rectangular cells

I am using gdal2tiles to create kml files of a raster image. The raster cell resolution is 25,-25. I use the following commands: bash-4.1$ gdalwarp -of GTiff -t_srs EPSG:3857 bash-4.1$ ...
2
votes
1answer
246 views

Technique for splitting raster image into tiles

I have written a standalone application which renders a globe similar to GoogleEarth/WorldWind which is currently able to display raster imagery from WMS servers. The native geodesy of this ...
1
vote
0answers
94 views

OSGB36 referenced PNG to Google Earth

I am creating a PNG that is referenced to the OSGB36 datum (1 pixel per 50m easting/northing that is colored according to the result of some calculation code) I want to display this on Google Earth ...
2
votes
1answer
307 views

How do I convert EPSG:26986 coordinate pairs to EPSG:4326 from the MassGIS web service, the Linux command-line, or PHP?

I'm a GIS newbie, normally a PHP web applications developer. I am trying to map all boundaries of the MA state representative districts. So I just need to convert polygon coordinates from the ...
2
votes
2answers
200 views

Issue converting DEM in ASCII with LO17 (apparent) projection

I'm a newbie where GIS is concerned, so please don't hesitate to point me to a manual. We've got DEM files without any projection information. One is called 000426_LO17_200M_BD16_25.ORT and contains ...
4
votes
3answers
889 views

Create a ground overlay kml from georeferenced raster

I have a world georeferenced raster (5m resolution, ~4000 x 4000 pixels) that I would like to display in google earth. I am looking for a simple and effective way to generate this kml file. Using ...