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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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 ...
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2answers
47 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 ...
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0answers
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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 ...
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0answers
22 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 ...
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1answer
49 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 ...
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1answer
30 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 -...
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2answers
412 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 ...
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1answer
642 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.
-> ...
2
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0answers
173 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 ...
4
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1answer
79 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 ...
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1answer
223 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 ...
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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....
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0answers
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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 ...
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2answers
253 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 ...
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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; ...
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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["...
2
votes
1answer
269 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 ...
0
votes
1answer
42 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 ...
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1answer
915 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 ...
2
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0answers
56 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 ...
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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
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