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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1answer
673 views

Converting CIB data to Google Tiles with GDAL

I'm trying to convert CIB map data into Google compatible Tiles through the following process (in Linux, GDAL compiled from source): gdalbuildvrt data.vrt A.TOC gdal_translate -of VRT -expand rgba ...
2
votes
1answer
2k views

What are the appropriate parameters to convert .asc file to geotiff using gdal_translate?

My starting file of interest is an ASC file with the following gdalinfo Driver: AAIGrid/Arc/Info ASCII Grid Files: sd_1_3_110805.asc Size is 11880, 9720 Coordinate System is `' Origin = ...
1
vote
1answer
56 views

Erase shapfile (polygon) area from GeoTIFF

I've been reading several posts to do so and one option would be to use gdalwarp -cutline, but I would need to keep what it is NOT inside the polygon area. GDAL or any command-line tool does that? ...
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0answers
99 views

GeoDjango: AttributeError: function 'GDALAllRegister' not found [closed]

Im trying to get started with GeoDjango. I am using this https://docs.djangoproject.com/en/1.8/ref/contrib/gis/tutorial/ tutorial. When I run "python manage.py migrate" This error occur: ...
1
vote
1answer
429 views

Changing color of raster images based on their data values - gdal

Let's say I have 1 band raster images with Gray Color Interpretation and I want to change their color based on their data values. Data values -1, will be Blue, -0.5 will be Light Blue, 0 will be ...
1
vote
1answer
470 views

using GDAL/python to stack georeferenced images of different sizes

I am in the process of porting a code I wrote in IDL (interactive data language) to python but am running into a bit of a problem that I am hoping someone can help me with. The code goes like this: ...
1
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2answers
420 views

GDAL and Python - Don't print GDAL Error messages

According to the GDAL Python Documentation, GDAL functions do not raise exceptions or errors but do print errors to the console via stdout and stderr. I have some code in my script that calls ...
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vote
2answers
472 views

Gdal: How iterate through all pixels of a raster image?

Given a topographic raster image. How to iterate through all pixels of this raster image ? Solution preferably with gdal, in console. Some other libraries/script could be installed. Related: ...
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2answers
426 views

Convert .tiff data to bitmap just when rendering and at runtime by visualC++ code

I need to convert a .tiff image to a bitmap one without saving the bitmap. I know that I should use GDAL_translate but because I'm new, this function's interface is a little complicated for me. Could ...
1
vote
1answer
568 views

How to extract a WCS layer with gdal_translate?

There is a certain WCS layer that I'd like to save it to my local computer for analysis. According to GDAL WCS driver draft: "Accessing a WCS server is accomplished by creating a local service ...
1
vote
2answers
508 views

How to produce a mean raster file based on other raster files? [duplicate]

Possible Duplicate: Tools to flatten the jp2 to a single band (average the bands)? I have a number of raster files from a same area, that coordinates of corresponding pixels perfectly match ...
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0answers
645 views

How to add ECW support to GDAL bundled with PostGIS Windows

I'm currently trying the new raster functionalities of PostGIS 2.0 and I successfully imported some GeoTIFF file into PostGIS (although it only find one band so it's all black and white for some ...
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vote
2answers
3k views

Get extent of Georeferenced Rasters in Python and output to polygon shapefile

I would like to create a shape file containing the extents of each of the rasters in a directory. Is it possible to capture the extent of a raster using Python? I have tried ...
0
votes
1answer
53 views

Facing a problem when re-projecting a file?

I am trying to re-project from Equi-rectangular. The file is provided as HDF5. I wonder why half of the map is not projected correctly. gdal_translate -of "ENVI" -gcp 0 0 0 90 -gcp 1440 0 360 90 -gcp ...
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votes
0answers
352 views

How to read vector datasets using GDAL library

Up to now, I have used GDAL in order to read raster information and geotiffs and show them with the help of OpenGL. Now I have a vector dataset, and by that, I mean I have the files with types: DBF ...
10
votes
1answer
1k views

Understanding the Map Tile creation properties

I am trying to create a tile base map. I have an image that I want to create the tile from and I am using GDAL. I managed to create the tiles but when I view the result it seems that the tiled map ...
9
votes
2answers
898 views

Python, GDAL and building raster attribute tables

I have an integer raster for which I would like to build a raster attribute table using Python and GDAL. I can create a GDAL raster attribute table in Python as follows: >>> rat = ...
7
votes
1answer
396 views

Multiple versions of GDAL (32bit and 64bit) on same machine

I currently have GDAL installed on my Windows 7 64bit workstation. It is the 32bit version. I chose the 32 bit version because I wanted to use the GDAL Python bindings with a 32bit installation of ...
6
votes
2answers
806 views

Can I change the GDAL/OGR library that QGIS uses?

I have been adding a new format to OGR, all seems well and OGRInfo works. Now I would like to test my code out using QGIS. Is there an easy way to switch which GDAL lib QGIS uses on a windows box? ...
6
votes
2answers
404 views

Clarification of the “25D” option in ogr2ogr

[EDIT: In my original post, I had received an error that was based on a typo, so I scrapped that part of the question, but left the questions that still apply.] In the ogr2ogr docs it says: -nlt ...
5
votes
2answers
2k views

How to access Shapefile metadata using OGR?

I'm trying to use ogrinfo to get some details on a shapefile I downloaded. Currently, the only way I know how to do this is to load it into QGIS and manually click around to find any information on ...
5
votes
2answers
4k views

How to add *.ecw files to QGIS 2.0 on Windows?

How do I add and view *.ecw raster images in Qgis 2.0 ?
5
votes
2answers
519 views

Adding noise to a raster

I want to add some fine-grained noise to a raster in an automated python process (i.e. I do not want to use Photoshop or GIMP). I looked at PIL, but unless I'm mistaken, it doesn't seem to have any ...
4
votes
2answers
1k views

How to add Georeferenced PDF as layer to QGIS 2.0?

I have some georeferenced pdf's that I would like to open in QGIS. I have read that GDAL version 1.8 and higher will support pdf, and I have GDAL 1.10 installed with QGIS 2.0 on Windows 7, but when I ...
4
votes
1answer
519 views

QGis Save Raster as Rendered Image

In QGIS 1.9.0 Master, when you right click on a raster in the Layers Panel and select "Save As", you can select the output mode to be "Raw Data" or "Renedered Image". When selecting the Rendered ...
4
votes
2answers
972 views

Gdal Python Bindings and File Geodatabase API

I'm trying to get python 2.7 to work with GDAL/OGR and an ESRI file geodatabase. There have been a few similar questions asked but the answers don't fully resolve my situation. I have installed the ...
4
votes
1answer
804 views

Grid registration issue converting from GeoTIFF to Esri ASCII Raster format?

I've got a 3 arc second digital terrain model represented as a 32-bit GeoTIFF that looks like this: $ gdal_info gom03_v1_0.tif Driver: GTiff/GeoTIFF Files: gom03_v1_0.tif Size is 10200, 7800 ...
4
votes
3answers
5k views

How to add color interpretation for raster bands using GDAL?

I have 3 separate 1-band GeoTIFF files. The color interpretation for band is gray. I want a 3-band RGB file. I've used gdal_merge.py gdal_merge.py -separate file1.tif file2.tif file3.tif -o ...
4
votes
1answer
242 views

Update PostGIS after updating GDAL?

I am using PostGIS 2.0 and I want to use the raster functionality through mapserver. It seems as if the latest official GDAL release 1.9.1 has an unstable PostGIS raster driver, as pointed out in a ...
4
votes
1answer
1k views

Qgis - How to change GDAL version

im working on Ubuntu 12.04 server; i noticed this when i installed additional support for ECW format into the GDAL 1.9.1 which worked ok. Then i tried to add ECW files to Qgis but it said they still ...
4
votes
2answers
552 views

How to fix a raster with wrong Eastings?

I get an error when trying to warp a tif file in QGIS: ERROR 1: Too many points (35721 out of 35721) failed to transform, unable to compute output bounds. I am using QGIS 1.7.0 Wroclaw with gdal ...
3
votes
1answer
46 views

How to re-compile ogrinfo against gdal used by QGIS?

I just solved a problem with missing libraries blocking use of ogrinfo and ogr2ogr, only to find that these utilities are garbled in one more way: whenever I run any of these, I get following error ...
3
votes
0answers
165 views

qgis 2.8.1 - processing gdal 1.11.2 error (mac, 10.10.2)

i've just recently installed qgis 2.8.1 on my mac. including all relevant packages from kyngchaos - i.e. GDAL Complete 1.11 framework package, Matplotlib Python module, numpy - and updated python to ...
3
votes
1answer
186 views

Reprojecting MODIS Ice Sea Temperature products with gdalwarp

I have problems projecting MODIS Ice Sea Temperature (IST) products to EPSG:3031 (Antartic Polar Stereographic) using gdalwarp. The product I'm working with is MOD29E1D, documented here, p33: The ...
3
votes
2answers
268 views

Homebrew OGR with FGDB support on OSX 10.9

This answer worked beautifully in 10.8, but isn't working immediately in 10.9. The link to download the FileGDB API still works, but there are a bunch of options available I don't remember from ...
3
votes
2answers
267 views

How to work with OGR and GDAL in GP Service in ArcGIS for Server 10.1

I have got a lot troubles with GDAL and OGR in the context of ArcGIS Server on 64 bit server machine. I can run script that use GDAL in ArcGIS as Tool and in the debug mode in PyScripter, then ...
3
votes
2answers
1k views

How to set output resolution for gdalwarp to that of source file?

I have a large raster, which I want to re-project and crop for a new location that I'm creating in GRASS. I seem to have gotten the re-projection and cropping right with this call to gdalwarp: ...
3
votes
1answer
680 views

Using GDAL to connect to a WFS

I'm trying to connect to a wfs using GDAL, from reading some of the (fairly sparse) documentation on this i have found that this is possible if GDAL is compiled with the correct drivers (Curl, ...
3
votes
1answer
1k views

Why does ogr2ogr SHP import error out trying to create a database?

All, Can anyone tell me what the error is with OGR2OGR when trying to import a .SHP into MSSQLSPATIAL? ERROR 1: MSSQL Spatial driver doesn't currently support database creation. Please create ...
3
votes
0answers
615 views

How to set GDAL/cs2cs/proj to use NTv2 grid shift file when using EPSG codes?

I am using the GDAL API for Python for a script that takes only EPSG codes for inputs to specify source and target coordinate systems. While the cs2cs command seems to handle quite well ...
3
votes
1answer
359 views

OGR - Weird GeomType -2147483645 on polygon shapefile

I am trying to import a shapefile (multipolygon) in an app with ogr but I got an error about invalid geom type. If I inspect the data with ogr like this: datasource = ogr.Open("c:\\temp\\data.shp") ...
3
votes
1answer
567 views

ogr2ogr / GDAL remove features in FileGDB while in use by ArcGIS Server map service

I'm using ogr2ogr to pull features out of Oracle and put them into a File GeoDatabase. The FGDB is being used by an active ArcGIS Server map service. This is all done for performance / reducing DB ...
3
votes
0answers
424 views

How to compile GDAL with HDF4? (for dummies)

I need GDAL with both Shapefile and HDF4-Support, if possible in 64 bit. Since the normal GDAL-versions from http://www.gisinternals.com/sdk/ have Shapefile, but no HDF4 and the version from FWTools ...
2
votes
1answer
99 views

Implement r.cross / ArcGIS Combine with GDAL

I am using GDAL to process a lot of rasters. I then need to combine all the arrays to create a single output raster that represents all the unique combinations of values. I.E the same thing as ...
2
votes
1answer
60 views

Georeferencing uneven/irregularly gridded rasters

I'm trying to take a set of NetCDFs and turn them into georeferenced datasets using GDAL. However, the only Geospatial data is a set of 2-D lat/lon arrays. The projection type is not lat/lon. THe ...
2
votes
2answers
139 views

gdal_translate creates images that are mirrored

I'm having a problem with gdal_translate - when translating from an XYZ file to AAIGrid or geotiff the raster is mirrored and "moved" south on one axis. The top part of the attached image is the ...
2
votes
1answer
2k views

Install GDAL on CentOS 7

I'm having issues with installing GDAL on a fresh install of Centos7 using the ELGIS repo. Here's my commands and output: sudo rpm -Uvh http://elgis.argeo.org/repos/6/elgis-release-6-6_0.noarch.rpm ...
2
votes
1answer
327 views

Gdal/QGIS resampling asc file

I have a DEM (.asc) file with a resolution of 1000 meters per pixel. Therefore the file has a lot of columns and rows. I would like to chance the resolution per pixel from 1000 to 3000 meters per ...
2
votes
2answers
739 views

Exporting 16 bit single-band to 8 bit in SAGA/QGIS

Everytime with every function (e.g convert data storage type or gdal-translat -ot Byte) the output is a completely white map with a black border. only the "save as" export works, but the TIFF also ...
2
votes
1answer
2k views

How to change GDAL version in QGIS to get ECW import to work

I’ve previously been successful in importing ecw into QGIS 2.0 but the same methods (for example How to add *.ecw files to QGIS 2.0 on Windows?) have failed with a fresh install of QGIS 2.2 with ...