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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Importing OGR from OSGEO Issues

I am trying to run: from osgeo import ogr and I get: Traceback (most recent call last): File "", line 1, in from osgeo import ogr File ...
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530 views

OSX 10.9 + QGIS 2.0.1 - Missing osgeo module

Running the following: QGIS 2.0.1 (via Kyngchaos) OSX 10.9 GDAL/OGR 1.10.1 (via Homebrew). Recently, I've become unable to use the OpenLayers plugin, which is complaining that I'm missing the ...
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3k views

How can I convert a csv file of WKT data to a shape file using ogr2ogr?

This question is related to Shapefiles to Text. I have a csv file, with one column, where all the rows correspond to WKT POLYGON()'s: WKT POLYGON(...) POLYGON(...) ... I'm familiar with how to ...
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45 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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2k views

How do you open shapefiles with ogr2ogr

I'm following along the D3 tutorial, and on this line: ogr2ogr \ -f GeoJSON \ -where "adm0_a3 IN ('GBR', 'IRL')" \ subunits.json \ ne_10m_admin_0_map_subunits.shp run into the following ...
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1answer
57 views

Convert list of coordinates to OGRGeometry or WKT

I am using a Visvalingam-Whyatt simplification script and the output is a list of coordinates such: [[[[-10885205.10690245 3525662.26531131] [-10885369.01690829 3525374.0741439 ] ...
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40 views

QGIS crashes when trying to display features form MySQL

I import shapefiles into MySQL using the following command: ogr2ogr -f MySQL MySQL:GIS,host=localhost,user=root,password=root /home/user/Public/myshape.shp -nln Shape_table -update -overwrite -lco ...
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65 views

Why does this python OGR code for creating a layer and then adding a field not work?

Spot the difference! So this works... fp = "C:\\LiDAR\\MyLayer.shp" layer = "MyLayer" driver = ogr.GetDriverByName("ESRI Shapefile") data_source = driver.CreateDataSource(fp) srs = ...
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1answer
81 views

SetFeature creates infinite loop when updating sqlite feature using OGR

when using the SQLite driver in python - setting a feature after changing an attribute field value creates an infinite loop on the first record. the same code works fine if i substitute the sqlite ...
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61 views

How to export postgis points as blocks in dxf with ogr2ogr

I'm trying to export postgis points as blocks to DXF format. I have a simple table in postgis with columns: CREATE TABLE pod_com_azimuth ( ogc_fid integer, rotation double precision, pointtype ...
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369 views

Conflict between ArcPy and GDAL/OGR?

TL;DR I can't get an installation free version of GDAL/OGR to work from within ArcMap 10.0. I get an ImportError: DLL load failed on _mod = imp.load_module('_gdal', fp, pathname, description). ...
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42 views

Adding a Vertex To Exisiting Feature(linear) Using OGR Python

I am working on a project that involves finding the intersection of linears in a shapefile, if that vertex(the found intersection) doesn't already exist for each(or one) of the features, then that ...
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98 views

Can OGR handle Esri's Geodatabase extensible markup language (XML) files?

The USDA Forest Service distributes GIS data as Esri Geodatabase extensible markup language (XML) files. I downloaded one in the hopes that I would be able to convert it to something less esoteric ...
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42 views

Exporting ArcSDE feature class to shapefile using OGR?

I'd like to export data from ArcSDE for SQL Server to SHP. I've tried first to run this python script in QGIS: http://trac.osgeo.org/gdal/browser/trunk/autotest/ogr/ogr_sde.py But finally I've got ...
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1answer
122 views

Using OGR Intersection Method Python

I'm currently working to find the intersections between linears in a shapefile. I'm a newbie to the GDAL/OGR library. I've done some googling and came up with what seems to be a useful example(see ...
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1answer
364 views

Latest version of ogr2ogr fails with Layer Creation

I am able to successfully run ogr2ogr to add S57 data to PostgresDB. The version I use is GDAL 1.7.0b2, FWTools 2.4.7 and release date 2010/01/19 I upgraded my version to GDAL 1.9.1 and release date ...
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1answer
31 views

OGR DeleteDataSource not working properly in Python

I have a small Python script which is supposed to delete a shapefile in case the file is empty. import sys from osgeo import ogr drv = ogr.GetDriverByName("ESRI Shapefile") ds = drv.Open(inData) if ...
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2answers
345 views

MultiLineString to separate individual lines using Python with GDAL/OGR, Fiona, Shapely

There are lots of MultiLineString features in a polyline shapefile. The problem is to split these lines into separate individual lines. There is a similar question with PostGIS, but I need to code in ...
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48 views

QGIS view bounding box on Add vector layer GeoGSON protocol?

Our server can serve GeoJSON with an optional bounding box HTTP parameter. e.g. http://our_gis_server.org.au/layername?bbox=xmin,ymin,xmax,ymax In QGIS I can add this vector layer as a Protocol and ...
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1answer
38 views

Extracting z values from shapefile using OGR Api

Is there an example of how we can extract the z value from a shp file given the x,y coordinate value (namely utm) using gdal/ogr c++ lib? alternatively, would it be easier if we convert the shp file ...
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1answer
504 views

Geometry errors when importing data from ESRI file geodatabase to PostGIS

When I run the following command to import by data from an ESRI fgdb to postgis... ogr2ogr -f "PostgreSQL" -a_srs "EPSG:28355" -t_srs "EPSG:3857" PG:"dbname=tp_test user=postgres port=54321 ...
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1answer
71 views

Creating an OVF file for connecting Oracle and QGIS

I'm trying to create an OGR file that can be opened in QGIS that pulls in vector data from an Oracle Database. I've tried a few combinations of things but can't seem to get anything to work. I've few ...
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3k views

Free tool to simplify parcel shapefiles?

Is there any tool available which let's me run millions of parcel shapefiles and simplify them?
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1answer
304 views

Loading a multipoint shapefile in R

This issue has only been raised in the community once, two years ago, to the best of my knowledge. I think it's high time to raise the issue again! readOGR, from the rgdal package, cannot handle ...
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2answers
2k views

ogr2ogr srs options: where is the well known definition determined?

In the ogr2ogr documentation it says that when using -a_srs srs_def: Srs_def can be a full WKT definition (hard to escape properly), or a well known definition (ie. EPSG:4326) or a file with a WKT ...
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1answer
160 views

Creating records in output shapefile using Python

I have a list (output from a previous loop) containing attributes from an input shapefile. What I am stuck with is inputting those attributes to a new shapefile. I have plotted the point data using ...
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1answer
92 views

ogr SimplifyPreserveTopology does not keep the Topology

I use ogr2ogr to simplify a layer of polyline, from the document: -simplify tolerance: (starting with GDAL 1.9.0) distance tolerance for simplification. This method will preserve topology, in ...
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62 views

Append ArcGIS feature layer data using GDAL/OGR API

ArcGIS servers are configured with a maximum records count that they're allowed to return following a REST query. This maximum is usually 1000 records, which means that GDAL/OGR clients should ...
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2answers
358 views

Join a CSV file to shapefile using gdal/ogr?

I have a shapefile with several attributes, for example YEAR, COUNTY, and AREA. I also have a CSV file with more fields that I want in the shapefile, such as POPULATION. Both the shapefile and the CSV ...
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65 views

SetSpatialFilter worked unexpected when using ogr by python

I am using ogr python binding to read the shapfile, this is the code: ..... bbox="POLYGON ((20.18164062 30.63867188,20.63867188 30.63867188,20.63867188 30.18164062,20.18164062 30.18164062,20.18164062 ...
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92 views

How to filter date values using OGR 1.11.0?

With OGR 1.10.1 this works: ogrinfo test2.shp -sql 'SELECT COUNT(*) FROM test2 WHERE DATE < "1970-01-01"' Note that DATE is a column of type date (not string). (Here's test data if you want to ...
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16 views

Asking about OFTInteger data type in OGR/GDAL?

I created the shape file by using the feature field type: OFTInteger. But when I open the file in Arcgis (ArcCatalog) the data type is: Double (not integer). Do you know how to fix this (I want it ...
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2answers
168 views

OSM linestring shown as point

I have loaded the following file http://openstreetmapdata.com/data/coastlines to postgreSQL. In visual studio with gdal/ogr and geos enabled: SELECT geom FROM waterpoly WHERE geom IS NOT NULL LIMIT ...
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2answers
59 views

How to replicate ArcGIS coordinate transformation with ogr2ogr?

I need to be able to replicate with ogr2ogr a coordinate transformation that was executed in ArcGIS for Desktop. Both ArcGIS and ogr2ogr are based on EPSG standard definition. There's not only one ...
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42 views

Comparing datums with GDAL/OGR

I have a bit of code in Java that takes in a SpatialReference object and checks that it is one of the acceptable datums (WGS84, NAD83, NAD83 HARN, NAD27), but because of the lack of standardization in ...
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1answer
56 views

TileStache can't find spatial ref for vector layer

I have a query based vector layer in my TileStache configuration, and it's hitting this block of code if layer.GetSpatialRef() is None and driver_name != 'SQLite': raise KnownUnknown('Couldn\'t ...
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2answers
1k views

Processing SQLite files using ArcGIS Desktop?

I'm using qgis and grass for my work. I've produced a shapefile which is over 100mbs (s a result of some statistical analysis). If i convert it to sqlite format (spatially enabled) the data shrinks ...
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1answer
84 views

no viewable feature when creating line with ogr in python

the python code below produces the expected line shapefile viewable in QGIS import os from osgeo import ogr drv=ogr.GetDriverByName('ESRI Shapefile') if os.path.exists('test.shp'): ...
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1answer
728 views

ogr2ogr specify lat/long order on conversion to GeoJSON

When using ogr2ogr to convert a polyon from a .shp file to GeoJSON, I noticed that it writes the coordinates in order lat, long. I noticed this because whenever I tried to view the GeoJSON on a map, ...
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1answer
90 views

VSI File API support in ogr2ogr

It seems that support for streaming input is wishy-washy in ogr2ogr. For example, why can I do this: curl "http://data.usgin.org/arizona/wfs?service=WFS&version=1.1.0& ...
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1answer
221 views

Ogr2Ogr: Failed to create GPX file output.gpx

When i try to export an shapefile to gpx using ogr2ogr. ogr2ogr -f GPX output.gpx D:\mypaste\input.shp -sql "SELECT Id AS name FROM layername" It gives me the following error "Failed to create GPX ...
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1answer
53 views

List the tab/shp files properties within folders/sub folders w.r.t relative folder path [closed]

Currently i am using this command line For /R "U:\01 My Proj" %f in (*.tab) do ogrinfo -al -so "%f" >>U:\New.txt to extract all the tab file related information as a text.Instead of giving the ...
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1answer
157 views

Get the outer ring inner ring for a given polygon using ogr python binding

I am trying to read the geometry of some shapefiles, now I meet some problem when I try to identify the polygon with holes, since a polygon may(or not) have one hole(or multiple holes). This is the ...
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237 views

Union multiple shapefiles with overlapping shapes

I have several shapefiles that overlap and I would like to union their geometries to get rid of those overlaps. I know how to do this with OGR and Python for single geometries. from osgeo import ogr ...
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2answers
2k views

No ogr module despite having gdal installed?

I am trying to use the mapping component of the wonderful PySAL package, but for some reason I do not have the ogr module. I was under the impression that it came packaged with gdal. Am I missing ...
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47 views

GeoJson attributes encoding limitation

I have problem when trying to encode attribute values in latin1 using ogr GeoJson driver. Accent char are not displayed correctly. Is the geoJson encoding is limited to UTF-8? I cant find any info ...
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1answer
38 views

ogr: what is the advantage of using `geom.Clone()` over `geom`?

What is the advantage of using geom.Clone() over geom? Simple example: geom = link_feat.GetGeometryRef() newfeature.SetGeometry(geom.Clone()) # or newfeature.SetGeometry(geom) ...
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1answer
80 views

How to get feature for a given bbox from shapefile by ogr

I have some features point,line,polygon with shapefile format, now I want to get features for a given boundbox, is it possible to remove the features out of the bbox? And for a polygon, I think it is ...
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190 views

GDAL - How to get gemetry type of a MapInfo TAB file?

I am using the OGR MapInfo File driver to read a MapInfo TAB file. However, the function GetGeomType() returns 0 which means 'wkbUnknown` even if the features in the TAB are only multi-polygons. Is ...
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105 views

aggregate counts on a grid and determine grid adjacency

So here is the problem I am working on. I have a bunch of lat, long coordinates for event occurrences. I want to create a grid and then count how many points fall into each grid pixel. Once I have ...