GDAL (Geospatial Data Abstraction Library) is an open source translator library & set of command-line utilities for processing raster spatial data formats. As a library, it presents a single abstract data model to the calling application for all supported formats. It also comes with a variety of ...

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15 views

gdalwarp, pyproj and gdal-osr have different transformation output

I would like to transform Landsat 8 scenes from the native UTM to the official Hungarian spatial reference system. My problem is that pyproj.transform and osr.CoordinateTransformation have the same ...
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22 views

Serving GeoTIFFs of different resolutions as single layer

I'm trying to serve a 30 arc second DEM with global coverage combined with high resolution 1/3 arc second DEM for a very small area. I believed at first I could combine them into a single file, ...
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11 views

WCS elevation with Cesium + Geoserver

I'm trying to develop an offline demonstrator showing hi-resolution bathymetry data using Cesium 1.11 and Geoserver. I've merged a number of 1/3 arc second areas around Puerto-Rico from NOAA ...
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2answers
6 views

Fusion table connexion issue

I'm trying to import some data from a SHP to GFT (Google Fusion Table). I get a 401 error. I'm using an Ubuntu 14.04 LTS Linux 64 bits with GDAL 1.11.0, released 2014/04/16. GFT is available (tested ...
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1answer
19 views

OSGeo4W GDAL Polygonize Batch Convert?

I'm trying to use GDAL polygonize to run a batch convert but I cannot for the life of my figure out a way to get it to read a text file as input that contains all of the commands. Do any of you know ...
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2answers
21 views

I cannot find osr after installing OSGeo4W package

I wanted to be able to import OSR from GDAL on my Python 2.7 (Anaconda) Windows 7 64-bit. I installed OSGeo4W after reading this post and eventually I'd like to import osr from osgeo import osr ...
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1answer
35 views

How do I convert WGS84 to Lat, Long to Google Maps in R?

I have this coordinate which I believe it's in WGS84 format x=1005740.867110, y=243957.356623 I want to plot that in Google Maps which I need to convert that to Lon, Lat. I've found this script ...
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2answers
59 views

How to have GDAL print layers of GeoPDF AND say which are raster vs vector

My Objective: I would like to use GDAL to convert a GeoPDF. I want the vector layers as shp files and the raster layers as tif files. I want to do this in a programmatic way. Edit: In reality, I ...
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14 views

Using GDAL Convert .SHP to GEO TIFF in Command Line Python [duplicate]

I have dozen Shape files (.SHP) with Georeferenced. I need to convert to GeoTiff or other format that GDAL primarly gdal2tiles.py to convert to MBTiles format. All I want is convert the .shp files ...
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23 views

Installing GDAL Python bindings on Windows [duplicate]

This has been addressed before (How to install GDAL with Python on windows?), but I wanted to bring the question up again, to see if anybody has come up with a better method in the last 5 years, and ...
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20 views

How to get elevation from dted only USGEO format using gdal apps

I need to get hieght by lat long position using gdal utilities
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19 views

What are the units in GMTED2010 elevation data?

I have downloaded the GMTED2010 elevation data from http://topotools.cr.usgs.gov/gmted_viewer/viewer.htm I am merging all the files/tiles (to create a global dataset) with: gdal_merge.py There is ...
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19 views

Non-Square Pixel on georeferencing of images using GDAL

I have a image in .jpg format. I have some GCP and also know the pixels values of these GCp in that image. Now i trying to convert this image into geotiff. for that I have coded the following lines. ...
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34 views

Multiple layer intersection

I am trying to find a way with qgis/python to get the intersection area of more than 2 layers. All the tools in Qgis take just the 2 input layers. ='( For example in the image below, I have 4 ...
3
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0answers
17 views

How do I specify an outsize for gdal translations to an ENVI file?

I'm trying to create an elevation map using the output from gdal_translate. When I run gdal I can convert to both PNG and ENVI and combine the results to make something like the following image. ...
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0answers
17 views

Install GDAL 2.0 on a MacOSX

Anbody knows what's the easiest way to install GDAL 2.0 on a MacOSX? The usual suspects kingchaos binary distribution and homebrew seem to be stuck on GDAL 1.11 I need support for TopoJSON feature ...
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1answer
81 views

Reprojecting MODIS Sea Ice Extent and IST data using GDAL

This is an additional exploration of the problem described at Reprojecting MODIS Ice Sea Temperature products with gdalwarp which was never answered in a satisfying way (I apologise for the length of ...
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12 views

Error trying to import data to CartoDB using ogr2ogr

I have a local install of CartoDB in my Ubuntu 14.04. I have created a CartoDB account called "development" and been playing with it for a while. Now I'd like to import some data from a shapefile ...
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1answer
63 views

Using GDAL library in QGIS plugin?

i've been working on my project to create QGIS plugin for raster analysis purpose. It will be easier if we use gdal library. Are we able to use gdal library to develop QGIS plugin? If so, how do ...
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1answer
56 views

How to cut image into Map Sheets with GDAL?

I want to divide a whole raster map image into map sheets. The gdal tiling or clipping functionality doesn't seem to do it.
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1answer
45 views

How to Install GDAL with ECW Support on Windows

What do I download from http://www.gisinternals.com/stable.php for Win7-32 to cut 1:1M map sheets out of Australia.ecw file in GDA94/Geographic and save them as geotiff in WGS84/Geographic? I would ...
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1answer
36 views

Python problem using GDAL

I used the instructions at https://pythongisandstuff.wordpress.com/2011/07/07/installing-gdal-and-ogr-for-python-on-windows/ I downloaded the following files: GDAL-1.11.1.win-amd64-py2.7.msi ...
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19 views

Creating Composite Raster from multiple GDAL sub datasets where CADRG is the source

I'm using GDAL on a project to view RPF (A.TOC) format of CADRG based imagery. I see how opening the "A.TOC" results in a dataset with many sub datasets. What I want to do is programmatically (on ...
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1answer
84 views

Difference between gdalwarp and projectRaster

I am trying to project a Raster. In R there is the projectRaster() function to to this (below a fully reproducibly example) : # example Raster require(raster) r <- raster(xmn=-110, xmx=-90, ...
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2answers
37 views

How to convert CSV file in VRT

Im a geomatics student. For the treatment I would like to make, I use the gdal executable in QGIS file, with a DOS command. I have a csv file like this (test.csv) : X Y -5.48 42.81 -4.78 ...
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1answer
24 views

Where can I find a binary ogr_FileGDB.dll compilled for Windows?

Need GDAL 2.0 with support FileGDB driver. The GDAL build from http://gisinternals.com does not contain this driver.
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32 views

Cannot find information about my.table table in raster_columns

I am running PostgreSQL 9.4 and PostGIS 2.1 and have loaded a small piece USGS SRTM data for North America successfully into my database. I am attempting to export a small piece of of the rasters I ...
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2answers
46 views

Editing .tiff rasters in Python

I am triying to edit .tif rasters in python, but I have some issues regarding the tiff to array converstion. I read there are multiple options for opening rasters (gdal, PIL, matplotlib), but which ...
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0answers
33 views

GDAL with GEOS support, pandas and VTK using python on Windows?

So far I have been using OSGeo4W shell (or OSGEO install) as really convenient way to use python together with additional packages, namely gdal, shapely, numpy, scipy and matplotlib. I was happy till ...
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0answers
42 views

Compile QGIS from source (with Grass)

I recently decided to reinstall QGIS and build against the latest version of GDAL - something I have been putting off for ages because I suspected it would be a nightmare. Lo and behold it has been, ...
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1answer
38 views

How do I convince gdal2tiles to output pngs with transparency?

I have a tiff that was created with Pix4dmapper. This tiff has coordinates embedded (as seen in the logs below) (I think that makes it a geotiff?) as well as a tfw file associated with it. Opening ...
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2answers
67 views

GDAL/QGIS broken Ubuntu 14.04

I think I've managed to bust GDAL after (I think) installing Grass7. I had previously built GDAL (1.10) from source with a bunch of additional drivers. When installing Grass7 GDAL 1.11 was installed. ...
3
votes
1answer
68 views

Split raster into tiles

I have a raster that needs to be split into tiles (each tile a new raster). I have a Shape file with multiple polygons (these polygons are how I want the raster split). I have Gdal and QGIS. Any ...
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1answer
19 views

GDAL Truncating/Normalizing Field names

While creating a ESRI-Shapefile using GDAL, it keeps truncating/normalizing my field names. Any reason why it does this? If the Field name is more than 10 characters it seems to do this. For example ...
1
vote
1answer
50 views

Trouble using gdal utilities in python (no output files created)

I am trying to use gdal utilities like gdal_polygonize in python to polygonize my raster image but I'm having trouble understanding the commands. What I mean is in some places the command is of the ...
3
votes
1answer
53 views

Reading Synthetic Aperture Radar raster images using python

Is it possible to read and modify Synthetic Aperture Radar raster images using python? gdal is not able to understand their Type which is Binary (application/octet-stream). One can find sample radar ...
2
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0answers
28 views

Is GDAL/OGR (specifically CoordinateTransformation) thread-safe?

I'm using the Java bindings if it matters. I have a heavily multi-threaded program and this is one of the bottlenecks that I have in a synchronization block. If I could remove the synchronization, it ...
2
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0answers
48 views

Gdal Python Problem : Black strips in geotiff

I am trying to use GDAL (2.0.0) Python API in Blender, but I am having some difficulties. I am trying to save geotiffs for : - a 2D numpy array storing 32bits floats - a 3 channels rgb numpy array ...
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16 views

OGRFeature set Multiple fields

Hi all to start off with: Using Gdal compiled with Xerces Coding in C++ with the QT Creator version 5.4.1 So my problem is im trying to use Gdal to create my own Esri shapefile, I get a strange ...
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20 views

Add hillshade to naip imagery

I've been searching for quite a while now. Is there a way to merge a hillshade image with an aerial image with gdal? I'm just trying to create a hillshaded aerial image.
3
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1answer
31 views

gdal java API returning different WKT from gdalinfo

I am running into an interesting bug where the wkt returned from dataset.getProjection() does not match the wkt returned from gdalinfo. (simplified) code: final Dataset dataset = ...
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38 views

Speeding up a GDAL SQL query with indexes or different file formats

I have a query that I'm performing with python and OGR2OGR similar to this: /opt/gdal-custom/bin/ogr2ogr -f CSV /vsistdout/ foo.shp -dialect sqlite -sql "SELECT A, ...
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1answer
29 views

Convert Polygons,Points,Lines to GML

I've got a vector of Points, Polygons, Lines. And I'm trying to convert the points into a GML file like a Web Feature Service. I've been doing some reading but cant find any methods that can do this? ...
1
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1answer
34 views

gdal_polygonize with World File

I have this image that I want to convert it to GeoJSON. And I have this World File: 0.0388048118 0.0 0.0 -0.0387897595 697054.11331 4458020.56656 When I try to run the gdal_polygonize command ...
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23 views

Modify NAIP Images for seamless mosaic with gdal

I'm processing lots of USGS NAIP imagery which overlaps. if I load multiple files into a QGIS project I can clearly see the edges of each tile being that some tiles have a darker or lighter contrast ...
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2answers
64 views

Using ST_Intersects in OGR2OGR

I'm running GDAL 1.11.2, released 2015/02/10. The following displays all the attributes in my shapefile on stdout: /opt/gdal-custom/bin/ogr2ogr -f CSV /vsistdout/ foo.shp -sql "SELECT * FROM foo ...
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33 views

Porting Arcpy script to linux cluster machine?

I wrote a series of arcpy scripts, and I am wondering how I can port the feature to Linux cluster machine? I found that ArcGIS server 10.2 runs on Linux machine, does that means I can theoretically ...
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0answers
15 views

Skipping the string serialization in json.loads(OGRGeometry::ExportToJson())

I have a for loop that exports a bunch of OGRGeometry objects to a python array in what will eventually become a GeoJSON feature collection. Something like this: features = [] for feature in ...
2
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0answers
55 views

Loading Raster with SharpMap (GDAL) doesnt work

i have problems loading rasterfiles (.tiff) with SharpMap I tried initializing a SharpMap GDAL Layer but nothing happens. It doesnt even throw and error when debugging after i set a path for the file ...
1
vote
1answer
42 views

Black image using gdalwarp

Im a geomatics student; Currently, I try to geo-referencing a tif image with the QGIS GUI, and then I load and save the Gdal script. With the QGIS GUI, I managed to get a decent picture, then I ...