All Questions
528
questions
2
votes
1
answer
91
views
Calculating common area between shapefiles using GDAL
I'm looking for a way to get the intersection area between my shapefiles.
Basically, I got three shapefiles from my .tif files like this:
gdaltindex a.shp a.tif
gdaltindex b.shp b.tif
gdaltindex c.shp ...
- 31
0
votes
0
answers
268
views
Using Gdal warp on shapefiles with GDAL Java Bindings
I am trying to write a method in Java that transforms from one CRS to another using GDAL's Java Bindings. Specifically from 3857 to 4326 (and a few others will be common to my use cases).
Here is my ...
- 297
1
vote
1
answer
2k
views
gdal.warp in Python script
I've a .tif file in EPSG:3426 and i'd like to convert it in UTM, zone 33, scale: meters.
In gdal I use:
gdalwarp -t_srs "+proj=utm +zone=33 +datum=WGS84 +units=m" image_input.tif image_utm....
- 31
2
votes
1
answer
615
views
Convert image from EPSG:4326 to EPSG:3857
I'm new to GDAL and map projections, I need to convert equirectangular (EPSG:4326?) projection to "pseudo Mercator" (EPSG:3857?) projection used by 90% web-based maps (which is simple this 0/...
- 141
1
vote
0
answers
58
views
gdalwarp raster reprojection is generating pixelated edges
I have a raster image, which is satellite data, that I would like to reproject using gdal on the command line.
The files I am using can be found here:
the unprojected image (.png)
.wld file
.msinc ...
- 93
0
votes
1
answer
245
views
Python subprocess not recognising gdalwarp option
I have been trying to use the subprocess module in python to perform the gdalwarp command.
To do so, I have done it like so
# use pixel size for GDAL WARP command
print('Pre warp')
warped_file = ...
1
vote
1
answer
256
views
GDAL - NetCDF to colorized raster
I have a NetCDF file that is satellite imagery. I would like to convert it to a raster image, with color, using gdal on the command line.
Here is what I have so far:
gdal_translate -unscale NETCDF:&...
- 93
1
vote
1
answer
489
views
GDAL warp in C++
What is the equivalent to the following GDAL terminal command in C++? I looked into GDAL C++ API, but could not figure it out.
gdalwarp -te xmin ymin xmax ymax -ts 1 1 -r max input.vrt output.vrt
for ...
- 21
1
vote
0
answers
82
views
GDALWarp Reprojecting raster extent from (0, 360) to (-180, 180) filling left hemisphere with blank data
Understanding that this question has been asked a few times (Reprojecting raster from 0 360 to -180 180 with cutting 180 meridian using gdalwarp seems to be the canonical one), I've found that any ...
0
votes
1
answer
759
views
GDAL: Reprojecting geotiff from LATLONG to UTM
I have a file in geotiff format, with coordinates in WGS84.
I would need to convert from WGS84 to UTM.
When I launch the code via GDAL:
gdalwarp -t_srs '+ proj = utm + zone = 37 + datum = WGS84 + ...
- 1
0
votes
0
answers
133
views
Fixing gdalwarp bounding box when trying to orthorectify using GCPs
I'm trying to orthorectify a raw, raster satellite image with a set of ground control points (GCPs) using gdalwarp. I first create a temporary tif to add in the GCPs using gdal_translate, then I ...
- 13
1
vote
1
answer
152
views
gdalwarp antimeridian problem on TIF with GCPs
I've got a non-projected TIF with 440 GCPs (a Sentinel-1 image) that crosses the antimeridian. Normally I just call gdalwarp with -t_srs (in this case 'epsg:3031' Antarctic Polar Stereographic), ...
- 21
1
vote
0
answers
32
views
Tile GeoTIFF images in locations far from each other in one layer
How to tile two aerial TIFF images from two cities in one layer?
I understand that first, I should create a virtual layer (vrt) and then tile it after reprojection. However, gdal2tile creates too many ...
- 43
1
vote
1
answer
145
views
GDAL coordinate transformation not aligning with QGIS coordinate transformation
I have a raster being changed from EPSG:27700 to EPSG:3857 coordinate reference system.
Within the QGIS application, I have found this coordinate transformation to fit the best
I've tried to ...
- 137
1
vote
0
answers
207
views
Creating custom initial projection in GMT/GDAL
I have a number of images which I need to project into the standard IAU 2000 lunar coordinate system. Each is defined in terms of an oblique cylindrical projection, and I am given the rotation pole/...
- 11