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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355 views

ogr.GetDriverByName('FileGDB') returns None

I installed: gdal-110-1600-x64-core.msi GDAL-1.10.0.win-amd64-py2.7.msi gdal-110-1600-x64-filegdb.msi from www.gisinternals.com I can open my gdb on the command line: C:\data>ogrinfo ...
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502 views

Use GDAL/Python to add rasters (tiff) to an ESRI File Geodatabase

I'm using GDAL python to create a bunch of tiff files from a netcdf file. def modelout_to_geotif(netcdfile, outdir, VarName): """ Given the path to the netcdf output, produces geotiffs for ...
2
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119 views

efficiently slicing tiles with gdal C API

Im working a project using the gdal C api(in a block of objective-c) to slice TMS style png tiles. The code currently works, but I'm running into some trouble optimizing to run fast enough for use on ...
2
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183 views

projection discrepancy with gdal (1.9) and proj4

I boiled the problem down to that python example: import sys try: from osgeo import gdal from osgeo import osr except: import gdal import osr if __name__ == '__main__': version_num = ...
2
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183 views

Localized Linear Histogram Match using python

I would like to use the local linear histogram match for filling the missing pixels of a Landsat 7 image with another older image (SLC Gap-Filled Products). Do you have any idea how can I do it by ...
2
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260 views

Image Pyramid + Geoserver + Google Earth slow with errors

I have hundreds of GB of somewhat small tif files. Here is gdalinfo of one of them: F:\gis\geotiffs>gdalinfo finaloutputSSAM211Jun181306hfwaterfall0.tif Driver: GTiff/GeoTIFF Files: ...
2
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294 views

How do I use scipy.ndimage.gaussian_filter1d on an arbitrary axis?

I have a GDAL raster that looks like this: And I would really like to blur this raster along an arbitrary transect. I see that scipy.ndimage has a gaussian filter that allows me to blur the raster ...
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58 views

Tiled image transforming to new profile

i have a set of tile which was tiled profile of mercator and proper to tms scheme mechanism. unfortunately i dont have any tif or georeference table or anything for this. all was tiled with mercator ...
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519 views

GDAL tiling DTED (dt2) dataset as gdal2tiles for 3D Maps

i am searching some webgl technologies to create 3d map with digital elevation data. for web tech. i have found ReadyMap SDK to create 3d map from TMS... in ReadyMap for elevation data it uses sth ...
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5 views

How can I improve image quality when using GDAL to generate Google Earth superoverlays?

I'm using the free version of Google Earth, so in order to create superoverlays of my large TIF images I have to use additional software. Google suggests GDAL. Using the instructions Google ...
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16 views

netCDF GDAL C# - time:unit?

I'm trying discover how to read the time:unit variable information information from a netCDF file and have run out of ideas. Without this info i cannot auto-magically process the files by date (which ...
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11 views

Installing GDAL with HDF4 driver on Debian system

I am working on a Debian 7 Wheezy system using Anaconda and working from Spyder. I've had a hard time installing a version of GDAL that reads HDF4 drivers. Could someone walk me through the ...
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15 views

Issues installing GDAL with PostgreSQL

I'm trying to install gdal-1.11.0 on CentOS 6 machine. Following the instructions, this is my config ./configure --prefix /usr/local --with-fgdb=/usr/local/FileGDB_API ...
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36 views

Gdal in ipython

i am trying to run GDAL in Ipython Notebook but i don't get it. I did conda install GDAL and it was aparently ok, but when i try to do the import i get this: ImportError ...
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26 views

Using OGR2OGR with LIBKML (Examples please)

I am trying to figure out how to use GDAL (ogr2ogr) to export spatial data from SQLServer to KML. The standard KML driver works, but it is not very robust. LIBKML has so much promise (layers, styling, ...
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17 views

How to set -srcwin with python gdalbinding and driver.createcopy

I am using gdal_translate currently to cut a 60000x60000 geotiff into smaller 1000x1000 geotiff files. This works but it takes about 24 hours(and I have 44 of those big images to compute). Im not ...
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0answers
14 views

GDAL Warp cuttline not working

Has anyone ever got the cutline to work in C++? I have it working off the command line no problem, but it doesn't seem to do anything when I populate that argument in C++ as below: *//Create a ...
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42 views

How to change values in a raster file at particular positions?

I have a collection of coordinates which comes from a QGSGeometry object. The shape is a polygon. example: qgsGeometry [[(75.2172,17.6566), (75.8499,17.9613), (75.5218,17.2113), (75.2172,17.4574), ...
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47 views

QGIS Mac OSX version cannot batch write output files after rasterization

Happy new year everyone, I have been trying to batch rasterize a series of .shp files using QGIS for Mac OS X, and keep coming up against a strange problem. I am using the QGIS 2.6.1 user interface, ...
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31 views

CentOS 6.5 - After compiling gdal.so: Unable to load dynamic library

CentOS release 6.5 (Final) Linux version 2.6.18-028stab101.1 (root@rhel5-build-x64) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46) I'm trying to Install Cartaro CMS (http://cartaro.org/). GeoServer, ...
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52 views

Unable to call GDAL functionalities from Python

I am trying to call GDAL functionalities from the following script I made in the past. import os, fnmatch from subprocess import call call("dir", shell=True) # define the variables inFolder= ...
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54 views

Error running polygonize from QGIS!

I'm trying to vectorize a raster image and when I'm running polygonize within QGIS 2.6.1. I'm getting the following message: Traceback (most recent call last): File ...
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49 views

Why can't gdal save CRS information to GeoJSON?

gdal fails to add CRS definitions to GeoJSON files in some cases. Try this, for example, from any linux terminal that has gdal installed: # download the data wget ...
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72 views

Old GDAL/OGR version with QGIS from ubuntugis in 14.10?

Installing QGIS 2.6 from ubuntugis installs an old GDAL/OGR (ogrinfo --version GDAL 1.10.1, released 2013/08/26) - it should be 1.11 for support of the Open FileGDB connector in QGIS 2.6 So I don't ...
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51 views

Python Band.SetNoDataValue(), sets all bands at once

Can someone tell me what I am doing wrong? I want to set bands 1 and three to 255, and band 2 to 0. The code below only should only set band 2, but gdalinfo shows that all bands get set to 0. Ubuntu ...
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0answers
57 views

Fiona write crashes

I am trying to write a new shapefile with fiona but after creating the features, i keep getting this output after the program crashes: The program '[6668] python.exe' has exited with code -1073741819 ...
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36 views

“fill in” .vrt with missing locations in a mosaic

I have ~2000 NASA SRTM .hgt files. I wanted to join them together in a single mosaic, and to save disk space I used GDAL to create a .VRT rather than a very large GeoTiff. This is read by Mapnik. ...
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44 views

different data range of raster file in mapserver and qgis

a NetCDF file with only one band with a data range from [0,1.1]. IDV & QGIS identifies it correctly, however gdalinfo finds the data range [1,26505]. Or could it be possible that gdalinfo is right ...
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64 views

Extract polygons of PNG with GdalOgrInJava

I have PNG pictures with polygons of different colours on them. What I plan to do is to extract these Polygons using the polygonize function (see here) Then I will try to encode the polygons in ...
1
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34 views

Python 2.6 Module for GDAL 1.9.2, ImportError

I work on an internal network(IE I cant get the latest 1.11 stuff) and have GDAL 1.9.2 setup on a Red Hat Linux Enterprise Server 6. My linux box has python 2.6.6 however the python binding I received ...
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54 views

Reprojecting and Clipping in one script using Python Subprocess module and GDAL

I am trying to reproject a .tif file then clip it to the boundaries of a shapefile using GDAL Warp. I want to do this in a single script, and have successfully used the Python subprocess module to ...
1
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29 views

SQLite Driver available with R's rgdal:writeOGR?

Does anybody know how I can get OGR's SQLite Driver to work with R's rgdal package? When listing the drivers in R with the ogrDrivers() command the SQLITE driver is missing..
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69 views

Using gdal ReadAsArray or Arcpy.RasterToNumPyArray on python 2.6 32bit without it crashing

I am trying to run ReadAsArray on an entire raster and on a single band, python will crash without an error message when trying to do either. Is there a way I can create a 3d array without having to ...
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0answers
48 views

How to run cmd prompt in the background and show progress bar

I am warping files using gdal. Since I have numerous files to warp how will I run the cmd in background and just have a progress bar to indicate the percentage in warping the files? Because when I ...
1
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0answers
83 views

NASA SRTM: precipitous contour lines in TileMill

I was trying to make a nice looking print map of Bali (Indonesia) in TileMill. After creating a terrain layer (using this walkthrough) I noticed that the island's coastline was precipitous. Is ...
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0answers
80 views

Batch GDAL_Calc multiple band calculation

I have a question concerning gdal_calc. I´m running windows 7 64b and am working from the OSGeo4W shell. I have multispectral images that need to be prepared for analysis but they are not saved in a ...
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0answers
65 views

Use Gdal2tiles to generate 512px tiles

I'm a newbie in gdal2tiles & python but I would like to modify gdal2tiles to create 512px tiles for retina display (screen). Can someone suggest how I can do this?
1
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0answers
30 views

Sending commands into FGDB

I have a large .gdb of all blocks in the United States, available from Census. I would like to create a point shape file of all census tract centroids in the US. I have QGIS with FileGDB enabled, as ...
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0answers
67 views

GDAL WMS in QGIS 2.4

I'm trying to add in QGIS a layer shown here : propluvia When I watch in my console I see this request corresponding to the layer I need. The server is not able to respond to a getCapabilities ...
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0answers
54 views

Converting MDB File With Unicode Characters

I'm using C# wrapper of GDAL and I'm having a problem converting MDB file that contains unicode characters. Lets take for example conversion to KML file, non-English characters are replaced by '?' ...
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0answers
66 views

Rendering a geotiff block with gdal and gdk-pixbuf - Some flaws in the result

I currently try to render a geotiff file with GTKmm\GDKmm (gdk-pixbuf). The file is a tiled geotiff with a block size of 256*256 and three rasterbands. The shortened gdalinfo output is: Driver: ...
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0answers
194 views

Correct way to extract pixel data using GDAL. Current method gives repeated but changing value.

I am trying to open a spectral file and move bands of data from GDAL to OpenCV's Mat data structures. As of now I am just trying to make sure that I can correctly access each band using GDAL and pull ...
1
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0answers
78 views

ogr2ogr “Error: pointer being freed was not allocated” on mac mavericks

I've successfully installed GDAL via homebrew on mac But while I'm using command ogr2ogr, keep getting error below $ ogr2ogr -f geoJSON tl_2010_20_tract10.json tl_2010_20_tract10.shp ...
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96 views

How to read .adf (TIN) map files?

I have a set of maps in few formats : TIN ├── [4.0K] info │   └── [2.6K] arc.dir ├── [ 708] log ├── [374K] M-33-45-D-d-4.asc └── [4.0K] m-33-45-d-d-4tin ├── [ 96] tdenv.adf ├── ...
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0answers
53 views

Clip Aerial Image Pair by Overlapping Area?

I have a set of aerial images which I am trying to clip by their overlapping areas, for use in a more involved program I am writing in Python with Python Imaging Library (PIL). Is there a command ...
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0answers
136 views

Rasterize shapefile using another raster's size and resultion

Rasterizing a vector (shp) I face the following problem: I want my output file (the rasterized vector) to have the same resolution and dimensions as an existing raster. If I understand the interface ...
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0answers
143 views

MySQL+GDal+MapServer+OpenLayers WebMercator problem

I have a problem/question what is the most efficiant way to go from WGS84 (epsg:4326) to webmercator. Outline of the structure right now: MySQL Database: with point Latitude/Lontiude Data [~200 ...
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0answers
102 views

How can you calculate the union/merge two polygons in ogr2ogr?

I want to calculate the union/merge two overlapping polygons using ogr2ogr (as I have 300+ to do). I want the output to be the same as you would get if you used the 'Merge shapefiles to one' command ...
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0answers
56 views

GDAL Color distortion around nodata value stitching

I am trying to extract JPEGs from SID images using GDAL. I ran into a an issue where black lines were present and figured out that it was a nodata issue, so I added -src/dst/vrt nodata arguments and ...
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52 views

How to prevent transparent borders (collars) of a tif wipe out overlapping regions of adjecent tif while using gdalbuildvrt

I have a set of Geotifs that have got transparent borders (collars) of irregular shapes & dimensions around them. First I created a VRT over this set of Geotifs through gdalbuildvrt. Then I ...