Questions tagged [ogrinfo]

ogrinfo is a program in the suite of GDAL tools. ogrinfo provides information about an OGR supported data format (traditionally vector format types).

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11
votes
3answers
3k views

Calculate total area of polygons in shapefile using GDAL?

I have a shapefile in British National Grid projection: Geometry: 3D Polygon Feature Count: 5378 Extent: (9247.520209, 14785.170099) - (638149.173223, 1217788.569952) Layer SRS WKT: PROJCS["...
7
votes
1answer
999 views

Using ogrinfo how to extract number of columns and attribute population?

Currently i'm using this DO ogrinfo -al -so to extract Projection, Feature count, Field_names for a bunch of files in batch mode. Is it possible to extract number of fields & how many fields are ...
4
votes
2answers
158 views

Reading various (non-.shp) vector types using ogrinfo

I am using the OSGeo4W shell to call ogrinfo on a directory (geodata) to see what vector files it includes: As you see, it lists two shapefiles and it tells me that it is using the shapefile driver; ...
4
votes
1answer
82 views

Why won't ogrinfo write to new column using informaiton from previous columns?

I'm having problems classifying an area of mixed forest using ogrinfo. I have an .sqlite file which contains the three columns; proportionclass1. proportionclass2, proportionclass3. I'm trying to ...
3
votes
2answers
692 views

ogr2ogr sql: what is the name of the geometry field?

I have the following ogrinfo -so output about a shapefile: Layer name: PREDEFINED Geometry: Polygon Feature Count: 58075 Extent: (425995.430000, 336399.500000) - (447356.663000, 359782.760000) Layer ...
2
votes
1answer
311 views

ogrinfo: Get a sample row from a GeoJSON file?

I know how to examine the properties of a GeoJSON file: ogrinfo my.geojson OGRGeoJSON -so But is there a way that I can retrieve a single feature's actual properties, to see what they look like? I ...
2
votes
0answers
187 views

ogrinfo: Unable to use sqlite dialect with -oo GEOM_POSSIBLE_NAMES open option

I am having problems using the SQLite SQL dialect to read a CSV file using ogrinfo, but only if I also specify a geometry column using the -oo GEOM_POSSIBLE_NAMES open option. Suppose file test.csv ...
2
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0answers
60 views

How to run ogrinfo for files listed in a CSV? [closed]

I am using this code to extract info's of all the tab files in a folder. We have a csv list which has, say 100 file names out of 500 files in that folder. How to modify the code only to do ogrinfo's ...
2
votes
0answers
25 views

Attribute table empty with custom driver in newer versions

I've written a custom ogr driver for one of our own formats. When loading the data I get to see vector data nicely displayed in Brighton/Essen/Pisa. However, when opening the 'Attribute Table' only ...
1
vote
1answer
812 views

ogrinfo says “Unable to open datasource” with KML?

I have a KMl file that will open fine in QGIS, but when I try to use ogrinfo I get: $ ogrinfo -so "myfile.kml" FAILURE: Unable to open datasource `myfile.kml' with the following drivers. -> ...
1
vote
1answer
321 views

How to List Fields of a Featureclass in a FileGDB using ogrinfo

I have an ArcGIS File Geodatabase, and I know that there is a featureclass within it. If I type: ogrinfo myfilegdb.gdb it lists the featureclasses within it. I now want to just find out what are the ...
1
vote
1answer
58 views

Add FID to attribute table using ogrinfo

I want to add the fid to the attribute table using ogrinfo in OSGeo4W Shell. Here is my code: ogrinfo layer.shp -sql "ALTER TABLE layer ADD COLUMN ID integer" ogrinfo layer.shp -dialect SQLite -...
1
vote
0answers
11 views

How to get feature class name using ogrinfo

I am importing kmz into postgres $ogrCommand = 'ogr2ogr -f "PostgreSQL" -a_srs "EPSG:4326" PG:"host='.env("DB_HOST").' port='.env("DB_PORT").' user='.env("DB_USERNAME").' dbname='.env("DB_DATABASE")...
1
vote
1answer
55 views

ST_Area(geometry) with ogrinfo estimates a stable area per grid cell

I use ST_area(geometry) in order to calculate the area of each grid cell of a vector grid with LCC projection and 6x6km2 resolution. The CRS of the vector is: +proj=lcc +lat_1=45 +lat_2=22 +lat_0=38.7 ...
1
vote
0answers
197 views

Trying to get GDAL 2.x to work, but ogrinfo reports ERROR 3: and ERROR 4: and “Failed to open table res_t48.PAT”

We have been using GDAL 1.9 for years on a Ubuntu 12.04 machine, but are trying to upgrade to Ubuntu 16.04 with the latest PostGIS and GDAL. When I install gdal-bin I end up with version 2.1.3. But ...
0
votes
2answers
51 views

How to efficiently extract specific metadata for many shapefiles?

I have a directory with 50 subdirectories containing a total of 300 shapefiles which I would like to query for their feature count and output to a text file. Thus far I am able to get the feature ...
0
votes
1answer
53 views

How to convert an ASCII file (with lat,lon coordinates) to a shapefile using OGR?

I have an ASCII file with the following columns : ID, longitude, latitude, value Is it possible to use OGR (ogr2ogr or ogrinfo) in command line in order to open the ASCII file and convert it to a ...
0
votes
1answer
2k views

How to install older GDAL v1.11 on Ubuntu 16.04 instead of v2.1.3

I have another question going on this forum regarding GDAL 2.1 ogrinfo not working at Trying to get GDAL 2.x to work, but ogrinfo reports ERROR 3: and ERROR 4: and "Failed to open table res_t48....
0
votes
2answers
277 views

Remove Duplicate Records IDENT field -Shapefile using GDAL OGRINFO or OGR2OGR

I have two shapefiles that I am merging/combining. However, this produces more than 4,000 duplicate records. I need to have only unique records. Is this possible with OGRINFO or OGR2OGR? I've ...
0
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0answers
138 views

Alter and update a shapefile with a field from an ASCII file using ogr

I have a vector file "map.shp" with a field ID. I have an attribute table (data.txt) with the following fields: ID, value1, value2. The field ID is the same in both files. I want to update map.shp by ...
0
votes
0answers
26 views

Using ST_Area(geography) with ogrinfo in command line?

I want to to calculate the ellipsoidal/spheroidal area of each grid cell of a vector grid using ogrinfo. When using ST_Area(geometry) I get the 2D planimetric area (which seems to be constant for a ...
0
votes
1answer
45 views

How to restrict the output parameters in ogrinfo?

Just want to know, is it possible to restrict the output parameters while using ogrinfo? For example, I need only the Projection details for a bunch of tab files, that too in a single continuous line ...