A vector data storage format for storing the location, shape, and attributes of geographic features. Often referred to as 'an ESRI shapefile', as ESRI developed it.

learn more… | top users | synonyms (1)

10
votes
2answers
301 views

Determine minimum number of polygons from shapefile to cover an area of interest

I have a large number shapefiles representing areas of interest for an analysis that will be conducted using various sources of satellite imagery (IKONOS, RapidEye, etc.). Unfortunately, the imagery ...
3
votes
2answers
1k views

From text data create a FeatureClass with table with python

I'm searching how the output of one program (text file with some writings, but also with data as numbers, dates, times, coordinates, all separated with commas) can be transformed to a Feature Dataset. ...
3
votes
3answers
544 views

Shapefile import with Oracle + GeoServer produces points instead of vector shapes

I have implemented the example at http://www.gistutor.com/openlayers/22-advanced-openlayers-tutorials/47-openlayers-wfs-t-using-a-geoserver-hosted-postgis-layer.html and got it working properly. Now ...
7
votes
1answer
4k views

Use python to add layers to TOC

I've been battling with adding layers to the TOC for some time now. I have managed to single layers added but need to loop through a folder and add all layers. Shapefiles I cannot get to add at all. ...
7
votes
1answer
4k views

Using the python shape library: pyshp - how to convert .csv file to .shp

I am trying to understand how I can use the csv module in python to open a csv file in the same folder as the python script, and then create a shapefile using the shapefile module pyshp. The csv file ...
6
votes
1answer
737 views

Error when using pgsql2shp

I try to export geographical data from a postgis database to a shapefile with pgsql2shp. Normally this works fine, but now I receive the following error. Preparing table for user query... Done. ...
2
votes
0answers
344 views

create geotiff from shapefiles

I need to colorized geometries from shapefiles and convert them to raster image (geotiff). I tried to use geotools's VectorToRasterProcess and ImageWorker ("d:\gis\tmp\32 27 25 w4.shp" is path to my ...
6
votes
1answer
3k views

How do I edit shape file attribute tables so they all have the same information?

I am trying to merge several pipeline shapefiles using GEOMERGE but it cannot complete the function because they have different column definitions. So I need to edit the attribute tables so that ...
1
vote
1answer
174 views

Unable to load the GADM data in QGIS

I have downloaded the shapefile of Mexico's Admin Boundaries from the GADM site but I am not able to load it in QGIS. It keeps giving me the following error, ...
4
votes
1answer
897 views

Using PHP and JavaScript to dynamically create shapefile or KML

While I have used GIS software (ArcGIS and just started playing with QGIS at home), I have never looked into the code or file structure of shapefiles. I am working on a project for my work, a ...
4
votes
1answer
564 views

Is there a recipe for large shape files to be used in an Android App?

I am very new to GIS and I am diving into cartography and mapping because of an Android App that I am currently developing. I want to display environmental data, more precisely noise pollution data on ...
1
vote
1answer
2k views

Drawing a Straight Line Between Two Polygons on a Map and Listing Which Polygons It Passes Through

I have a shapefile of United States counties. I have two counties that I would like to highlight. I would like to draw a straight line distance between them. By straight line, I mean, if you were ...
5
votes
4answers
316 views

We sent Client Esri Files and Now they want to See Polygons

We are a voter list company. Every ten years new political boundaries are written for federal and state offices. All of the corresponding shape files are ESRI ready. One of our clients is getting ...
1
vote
2answers
376 views

How to use -where SQL in an ogr2ogr loop in GDAL/OGR (bash)?

I'm using the following code: while read line; do for att in $line; do ogr2ogr -where "newcode='$att'" -f "ESRI Shapefile" $OUTPUT/$att.shp $INDATA done done < $SCRIPT/newcodes.txt The text file ...
3
votes
3answers
981 views

Where can I find a shapefile of all the Montreal Neighborhoods?

I am trying to map out Montreal and was wondering if there is already an existing polygon shapefile of all the neighborhoods. Here is a link to a perfect example of what I am looking for. ...
0
votes
1answer
191 views

overlay a county shapefiles for 2 different years [duplicate]

Possible Duplicate: overlay county shapefiles for 2 different years 2 down vote favorite I have county-level shapefile for South Caroline in 1880 and one for 1940. I would like to overlay ...
4
votes
1answer
142 views

Creating a feature of a part of a state boundary from a shapefile of U.S. States

I have a shapefile of U.S. states. I want to create a feature layer from it so that I can do a Near analysis with it. Suppose that I am interested in the Georgia boundary, but only the part of ...
3
votes
2answers
277 views

calculate coastline at risk

I have an idea of what I want to do but I don't know yet what tools will bring me there. I have administrative boundaries in one layer and coastline in another layer. The coastline is categorized in ...
3
votes
2answers
2k views

How to edit Shapefile Attributes?

How might I go about exporting a polygon shapefile (e.g. CSV) so that attributes (not geometry) are editable by others, and importing it with the changed attributes (of which there are several columns ...
3
votes
1answer
760 views

Can't get MapServer WFS to display in OpenLayers

I'm new to OpenLayers and MapServer and I'm trying to serve a shapefile through a WFS but can't seem to get the data to display. When I use Firebug and HttpFox in Firefox I seem to be getting some ...
1
vote
3answers
2k views

How to export a shapefile through the Wikimapia API?

I am trying to download a kml file from Wikimapia containing information on quaters (districts), the very same information that is nicely available on Wikimapia. What I want to get at the end of the ...
8
votes
4answers
847 views

How to create a multi-story building infrastructure web map?

Hi please bear in mind that I've got absolutely NO experience working with GIS before you begin laughing at this. During a recent meeting, our client was bouncing around their complaints about how ...
6
votes
1answer
173 views

Is there a difference between projecting shapefiles then rasterizing & rasterizing shapefiles then projecting?

I currently have a project where I rasterize shapefiles into simple presence/absence (1 & 0) rasters and then add each one to a running total to create a total richness raster at the end. The ...
4
votes
2answers
1k views

merge shapefile using ogr2ogr and retrieve the attribute of both

Ciao, I have two shape files that I want merge (overlay/intersect) having in the destination the attributes of the two sources file. ogr2ogr file_merged.shp tl_2010_us_uac10_conus_albersUA.shp ...
4
votes
1answer
1k views

How to programatically populate a shapefile field with polygon areas in OGR?

I'm trying to programatically populate a shp field with polygon areas: import sys import ogr ds = ogr.Open( 'tttttttttt.shp', update = 1 ) if ds is None: print "Open failed./n" sys.exit( 1 ...
3
votes
1answer
54 views

Is it possible to display filtered results on OpenStreetMap?

is it possible to goto www.openstreetmap.org and do a search for a place like Auckland (New Zealand) or Melbourne (Australia) -but- only show Cities or Neighbourhoods or Suburbs? I understand that ...
1
vote
1answer
277 views

Summarize polygon area using another polygon

I have a shapefile representing public/private lands in Montana. This is a multipart shapefile where I've simplified attributes so that #1==private and #0==public. Next I have a shapefile of ...
1
vote
3answers
697 views

Where can I find shapefiles for New Zealand Cities and Suburbs/Neighbourhoods?

I'm trying to find some shapefiles (administrative boundaries) of New Zealand CITIES and SUBURBS/NEIGHBOURHOODS. I've found some boundaries for the Country, Regions, Districts (not useful for me) .. ...
6
votes
1answer
1k views

Generating tiles for osm/esri shapefiles

I've generated tiles for OpenStreetMap .OSM files using Maperitive and quickly consumed them with leaflet (with no tile cache yet). I'm now looking for the right and simple way to do that also with ...
1
vote
1answer
518 views

Converting a shp file to a list of latitudes and longitudes

I have a shp file with the latitudes and longitudes for the boundaries for various geographic regions. I'd like to convert the shp file into lists of just latitudes and longitudes for the regions. ...
2
votes
1answer
730 views

World map shapefile including disputed areas

I am looking for a global shapefile that allows you do show data for all disputed areas (like Waziristan, Spratlay Islands, Kahsmir, etc.). Do you have any idea where I can find a shapefile with not ...
1
vote
0answers
390 views

QGIS: opening a shapefile without an exclusive file lock [closed]

UPDATE: I did some analysis of what happens with the locking and it looks like QGIS doesn't use an exclusive lock. It just requires (non-exclusive?) write lock to the file. So this C# code fails: ...
0
votes
0answers
160 views

Merging point shape file problems?

I've got a whole bunch of shape files that have soil testing data in them that I would like to merge together so I can do some analysis but when I use the Ftools merge shape files command I get an ...
3
votes
3answers
234 views

How to compare a set of images with a shapefile?

I have around 150 images (rasters), each one is just a map of certain "classes", e.g. pixel value 1=forest. I also have a shapefile that consists of roughly the same area as the 150 images constitute ...
3
votes
2answers
2k views

Can QGIS automatically load an SLD with a Shapefile?

I have SLD's/lyr files with my shp/gdb files. They all have the same name except for the extension. Is it possible for me to force qgis to load the sld with the shp so that I don't need to manually go ...
1
vote
3answers
2k views

How to convert projection

I got sample shape files with the following *prj file content: ...
1
vote
0answers
110 views

I've converted a kml to shp and want to import it to pgsql database, but no geometry column [closed]

As the title explains, I have a shapefile whose attribute table has no geometry column specifying the location of points. Rendered in QGIS, it looks fine, so the geometry data is obviously there. ...
2
votes
1answer
963 views

How can I relocate a georeferenced image, shapefiles and grid using Spatial Adjustment tool?

I somehow georeferenced an image about 120 miles east of where I should have georeferenced it. This should be a simple fix, except that I then proceeded to digitize that extremely detailed image ...
3
votes
2answers
105 views

vector layer, no more editing is allowed

I have a polygon vector layer with already 529 objects but without any attributes so far and now I get the message that shapefiles without attributes are treated as write protected. What can I do to ...
3
votes
3answers
702 views

How to merge a large amount of polygon-features in a script?

We have a very large shapefile with over 30000 features and want to merge it with a script on a server. Currently we try it with QGIS, but the processing takes way too much time. Is there a way to do ...
11
votes
5answers
2k views

How can I update ogr2ogr to include the PostgreSQL driver?

I'm trying to use ogr2ogr to upload a shapefile to a remote PostGres installation. When I ran this command: celenius:~ celenius$ ogr2ogr -f PostgreSQL PG:"host=255.34.00.00 user=postgres dbname=mydb ...
13
votes
2answers
686 views

Is there an automatic function in QGIS to package all shapefiles in a project for transferability?

In my project, I use a lot of geodata from different directories. Now I want to give the QGIS project to a colleague (eg on a CD). Is it possible to copy the shapes from different directories ...
1
vote
0answers
285 views

how to create a shapefile for 2 million points with geotools

I have to create a shapefile with the geotools java library for approx. 2 000 000 points and whatever strategy I apply I seem to run into out of memory exceptions as well as everything running super ...
2
votes
1answer
1k views

encoding problem with QGIS 1.8 and CSV import

I have following problem with QGIS 1.8. Lisboa (standalone installer, Win 7 Pro 64bit) - I import CSV - text in CP1250 separated with ";" and using "," as decimal separator. I correctly set the ...
3
votes
5answers
11k views

How to cut one ESRI Shapefile with another ESRI Shapefile? [closed]

I have one ESRI Shapefile as a map with many objects in it. I have another ESRI Shapefile only with borders in it. This shapefile is bigger in size (covering a bigger area) with many border lines. ...
5
votes
5answers
7k views

Why can't I export XY data to a shapefile?

I have added a table from Access to ArcMap, and then used 'Display XY data' to plot points. When I then try to export the Events to a shapefile I get an error message telling me: "Error exporting ...
2
votes
4answers
535 views

Dublin postal areas shp file?

I'm currently developing an application that uses shp files for Dublin. In particular I want to display the postal areas for Dublin but cannot locate an appropriate shp file. Can anyone advise where ...
0
votes
0answers
23 views

Desktop tool to batch convert Shapefils to CSV with polygon outline coordinates [duplicate]

Possible Duplicate: How to convert .shp to .csv including attributes AND geometry? Is there a desktop tool that would allow me to take dozens of large (300MB) shapefiles and convert them ...
3
votes
1answer
80 views

How to modify height model values outside of road network

I have a height model of a quite big area saved in Esri ASCII grid files and a road network of this same area in a shapefile. I'd like to convert every height model value outside the road network to ...
5
votes
3answers
1k views

Producing singlepart featureclass with unique IDs for each spatially non-connected polygon?

What is the best method to convert a singlepart shapefile (i.e. one record that contains several non-connected polygons) into a mutlipart shapefile? For clarification the original question asked how ...