The OGR Simple Features Library is a C++ open source library (and command line tools) providing access to vector file formats.

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OSR Python testSR.ImportFromEPSG(4326) returns empty spatial reference

This is empty using Python .ImportFromEPSG(4326): import osr #this fails: testSR = osr.SpatialReference() testSR.ImportFromEPSG(4326) print testSR.ExportToPrettyWkt() #why did the import from EPSG ...
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26 views

Command line join attributes by location using OGR

I have two overlapping vector files (polygons and sample) and want to do a spatial join from the command line to extract all features in polygons that intersect with sample. Essentially I want to have ...
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1answer
34 views

Available Python client libraries for WFS transactions?

I am looking for a Python module to allow me to use WFS-T. Everything I found so far only supports getting data out via WFS, I need to INSERT and UPDATE. owslib does not support WFS transactions ...
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1answer
2k views

How to reproject shapefile using ogr2ogr

I have shapefile in EPSG:2834 and I want to reproject it into EPSG:4326. I am trying to use ogr2ogr in Windows; however, I get this failure output: C:\Users\Nik\Desktop\Logan_Lines>ogr2ogr -t_srs ...
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R : convert a spatial polygon objet to spatial polygon data frame

My goal is to modify an existing shapefile by merging certain polygons. After importing the shapefile and using the UnionSpatialPolygons command, I get the polygon outline that I want. However, this ...
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Identify and delete overlaping or near lines with similar running

I have shapefiles with lines that shows surface water runoff. I need to clear and simplify these shapefiles by condition that if some lines are near by other and has similar running, this lines has to ...
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1answer
46 views

How to set CRS for a DXF file and prevent any warning on QGIS using pyQGIS?

I am trying to import dxf file with no warnings or popup from Spatial Reference Selector. However, even after modifying QGIS Spatial Reference Selector setting, I still get a qgisMessagebar warning. ...
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60 views

Can updates be made to “ogr_fdw” foreign tables in PostgreSQL?

I am accessing a Microsoft SQL Server table (w/ SQL Server a geometry column) via an ogr_fdw foreign table. SELECT statements work great, including the PostGIS functions that I've tried. Are UPDATES ...
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69 views

Add Color To GTiff output raster band

I am using GDAL in Python to create a tiff raster of data that is originally from a shapefile. I have an auxillary data channel, which I would like to use to color the pixels of the tif. I have made ...
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390 views

How to make a local copy of a large WFS dataset?

We are writing a application in which a part of the job is to fetch a relatively large (>10000 features) and often updated dataset from a WFS server, store a local copy, and do geospatial analyses on ...
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36 views

Geokettle Data Input from Oracle Database

i just installed GeoKettle and am trying to do some first steps in this. Can anyone help me with the data input step to an Oracle DB? I tried the OGR Input: But i seem to be unable to find the ...
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1answer
48 views

Failed to export vector file from OGR?

I use to transform data points from UTM (WGS84) to WGS84 EPSG:4326. Basically from UTM to Geographic coordinate system both in (WGS84). I tried to do it again but an error message appears. ...
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482 views

Extracting x,y,z values from a postgis linestring to python using ogr

I am trying to load a postgis linestring into python (using ST_DumpPoints) and extracting x,y,z coordinates, which is working but extremely slow..and if i mean slow, i really mean it (yes, it takes ...
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1answer
49 views

Change shapefile field names using ogr AlterFieldDefn

I need to change field names of a shapefile to upper case using ogr. I want to do this automatically, versus calling out each field and replacing the name with upper case. When I try to implement ...
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1answer
71 views

How to tile GeoJSON data?

I have a GeoJSON dataset of the following format (LineString features): { "type": "FeatureCollection", "crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } }, ...
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1answer
96 views

In Python, How to Encode and Decode Complex Data for a OWSLib WPS call to PyWPS-4?

In Python, how can I encode "complex" (vector) data for a WPS call that just echos back the data, and decode the data from the result. I was planning on using OWSLib on the client side and PyWPS-4 on ...
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87 views

QGIS/OGR shp to tab export - crashing Mapinfo due to number format issues

I created a vector grid in QGIS and it exports as SHP -no issues. When I save as tab and try to open the file in MapInfo it crashes. According to ...
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1answer
114 views

Problem with read_shp() in NetworkX

I'm trying to convert a shapefile of only line geometry (a street network) to a NetworkX graph to run some connectivity algorithms on it. I'm running into this issue: File ...
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3answers
5k views

Divide a complex shape file into a grid

I have a decently detailed shapefile with polygon/multipolygon features (the file is about 500mb). It's actually a shapefile of the entire world, with the features representing coastlines. I need to ...
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2answers
3k views

OGR Layer Intersection

I am using what I would describe as the most primitive method of doing intersection with OGR. The short script below describes how I do it. Is there a best way of doing this? from osgeo import ...
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1answer
91 views

Can't write decimal data into shape (shp) attribute table with Python

I am trying to create a shapefile with Python GDAL/OGR library. I add to it a real number field, but when I write into it doesn't appear as it should but rounded. I will explain better with the code: ...
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42 views

Copy specfic layer to new datasource using OGR Swig Java bindings

Is it possible to efficiently copy a specific layer from one datasource to a different datasource using GDAL/OGR Java bindings? I know it is possible to create a new layer in the target data source ...
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No Exception Handling in GDAL/OGR java bindings: ogr.UseExceptions() has no effect

When a GDAL/OGR 2.0.1 swig/java operation encounters an error, the message is written to stderr but no exception is thrown within the application -allowing it to continue, which is highly ...
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1answer
92 views

Rasterize vector file using gdal.RasterizeLayer() without losing attribute information in python

Is it possible to rasterize a vector file with gdal.RasterizeLayer(), saving attribute as Raster value ? Like gdal_rasterize can do with : gdal_rasterize -a attribute -ts rasterXsize rasterYsize -l ...
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893 views

Programmatically creating exports from PostGIS database into different file formats (e.g. shapefile, dxf, dgn,…)?

Is there a kind of wrapper/library written in python which would enable me to programatically create exports from postgis database into different file formats (most common being, shapefile, dxf, ...
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1answer
131 views

Convert KML to GeoJSON with ogr2ogr and remove KML special attributes

I'm trying to convert KML to GeoJSON (or some other formats) using ogr2ogr (look at this question). It's all working fine, except of one problem: I'm always receiving these metadata attributes with ...
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47 views

How to unproject a UTM ESRI Shapefile over WGS84 extent boundaries

Background: I am working on a collaborative project in Python that uses GDAL/OGR to work with rasters and vectors. There is one function that attempts to project one ESRI Shapefile's coordinate ...
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2answers
1k views

How to combine MapInfo tab files into one spatialite DB?

I have many folders, each with a collection of MapInfo tab files (each folder has the same table names). For each folder I want to merge the tab files into one spatialite DB. My current method is to ...
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1answer
259 views

Ogr2ogr - shape to postgis - is there a way to use and preserve an existing primary key?

I've been struggling with this for a while, tried a few different ideas inspired by these pages: http://www.gdal.org/ogr2ogr.html http://www.gdal.org/ogr/drv_pg.html ...
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1answer
48 views

gdalwarp resampling problems

I'm trying to clip and resample a raster to match the dimensions and resolution of another raster. Here's my gdalwarp command: gdalwarp -t_srs EPSG:4326 -te 102.3375307079206 14.6874037407838 ...
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61 views

Calculate Z Median from 3d line?

How does one calculate the median value of Z from a 3D line? The Add Surface Information tool in 3D Analyst only does Min,Max and Mean (average), and requires a surface model. (In this case I have ...
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58 views

Rasterize layer with GDAL after attribute filtering

I am working with GDAL/OGR and I need to do the following task : I have a shapefile with many attributes. I performed a query over one of them, "type_of_building='Church'". I have done this with the ...
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44 views

How to access a feature by specific field value using python ogr in an efficient way?

I have one point layer and one polygon layer with a common identifier attribute field called "N", same objects amounts but Feature IDs (FID) are different. I have to iterate on the first one and what ...
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2answers
75 views

How to access Shapefile metadata and metatypes information using OGR?

I'm trying to use ogrinfo to get some details on a shapefile. Now, the only way that I know is using orginfo: ogrinfo -ro -so -al BRA_001.shp But its display all information about the shape: ...
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282 views

Dissolve using GDAL/OGR?

I'm trying to dissolve a shapefile according to a field using Python 2.7.10 and I don't want to use ArcPy. Is there any way to do this using GDAL/OGR?
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1answer
185 views

Problem intersecting shapefiles with OGR in Python

I'm trying to move from ArcPy for geoprocessing. After searching some posts, I found this solution using the GDAL/OGR Python bindings: Intersect Shapefiles using Shapely My code is the following: ...
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1answer
78 views

Visualize PostGIS 3D line geometry [closed]

I have PostGIS table with 2 geometries ( "GEOMETRY(MULTILINESTRINGZ)" and "GEOMETRY(LINESTRINGZ)" ). There are lines made just from 2 points - XY are WGS and both of them have random elevation Z (I ...
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2answers
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API documentation for Gdal/Ogr with C#

I want to assign projection to shapefile in my web C# application, for this i am using Gdal/OGR/OSR C# bindings and add osr_csharp.dll and ogr_csharp.dll references. But i am facing some difficulty ...
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1answer
82 views

No GDAL/OGR package for Ubuntu 15.04?

Using Ubuntu 15.04, I'm trying to install GDAL/OGR. I did: [] sudo add-apt-repository ppa:ubuntugis/ubuntugis-unstable [] sudo apt-get update However, I found this error message W: Failed to ...
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1answer
7k views

Converting Shapefile to MySQL?

I have used Grass GIS imported a .shp file; I now want to export this file to MySQL. I understood that MySQL will contain the function of all three the files necessary in a Shape file system (.shp - ...
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4answers
5k views

Get all vertices of a polygon using OGR and Python

I'm having a little trouble with the Python OGR API. What I am trying to do is get all the coordinates of each vertex of the outer ring of a polygon. This is what I have so far: import osgeo.ogr ...
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SQL SERVER 2012, Python subprocess, OGR

Need help with uploading shapefile with srid 102008 to SQL server 2012. I ran the ogr2ogr script in the ogr shell and it uploaded the shapefile within seconds but when I try using python subprocess to ...
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1answer
38 views

Determining of vector dataset single files to specify its size on a disk

I wonder how to get size of disk space that a specific vector dataset occupies on a disk. I didn't find any ogr2ogr util or OGR Python method that can return a list of files that belongs to given ...
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Mapping between OGR and Python data types?

I'm writing a shapefile using OGR in python, creating fields on-the-fly from a python data source. Creation of a new field requires an OGR data type, is there a mapping between OGR and python data ...
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72 views

How to access ArcSDE metadata using OGR?

I'm trying to get a list of all layers in an ArcSDE database hosted in oracle here is the command I'm using: ogrinfo -al SDE:localhost,5151,sde,sde,sde Note: I've replace the database, username ...
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Scripting procedure to clip vector lat-long file to those that fall within a raster? [duplicate]

I am looking for something similar to this thread, but in a scripting procedure which can be run through a Bash shell. In essence, I have a vector of latitudes and longitudes that span most of ...
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1answer
83 views

Gdal ogrinfo CSV unable to open datasource

When I try to import a csv file into a PostgreSQL table with the Gdal ogr2ogr tool I get the "Unable to open datasource" Failure. So I tried to open it with the tool ogrinfo and I get the same ...
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2answers
116 views

How to add attribute table to new shapefile using OGR?

i have made a new shapefile from the original shapefile , and now i want to copy the attribute table from the original shapefile to the new select shapefile , but i don't know how to do that? import ...
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1answer
100 views

Batch convert dgn files to shp files using ogr2ogr

We have hundreds of dgn files which have to be converted to shapefiles. I am trying to use these commands to batch convert all the dgn files in a folder. for %%f in (*.dgn) do ogr2ogr -f "ESRI ...
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2answers
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How to select form the attribute table in with ogr

i want to select the (Sumava) from the attribute table and then make a shape file, my problem is i don't know which function should i use to select this area.if any one can help me? import ogr import ...