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.

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3
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1answer
637 views

Automate removal of duplicate polygon nodes from shape file in Arcmap

I have a whole lot of polygon shape files, many of which have got duplicate nodes. This makes processing difficult as almost all tools (erase, union, calculate area) do not work. I found that by ...
4
votes
3answers
820 views

Why is the curl syntax unable to create datastore?

I am implementing the following code to upload an existing shapefile as per the documentation, curl -u admi PUT 'Content-type: application/zip' \ --data-binary ...
3
votes
2answers
2k views

Create point to a center of polyline

I'm trying to create a points in the middle of polylines. The data is now in the form of shapefile. Is there an easy way to do this? Cheers, Sanna
3
votes
3answers
230 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 ...
1
vote
1answer
441 views

Is the PostGIS Shapefile Import Manager able to upload to phpmyadmin or only pgadmin III?

After trying to import a shapefile into pgadmin III with no success I was wondering how to successfully upload it, but also if it is possible to upload to phpmyadmin instead. In any case, how exactly ...
4
votes
2answers
486 views

ArcGIS: Rapid digitizing of Point Data

I have several big maps with a lot of points that I have to digitize. All these Points have different Values (depth in Meter, double) and will be stored in 1 Shapefile. Is there a way to speed up my ...
4
votes
1answer
458 views

Shapefile vs Arrays of coordinates to build Google Maps overlay?

I am very new to GIS, and my task is to overlay about 100 polygons on a map. I'm using Google Maps Javascript API v3. I think I can define all my polygons as sets of lat/long coordinates in my ...
5
votes
1answer
877 views

Working examples of Leaflet/Polymaps with GeoJSON tiles generated from Tilestache using Shapefiles?

I'm looking to create choropleths using GeoJSON tiles generated from ESRI Shapefiles by TileStache(or similar), in either Leaflet or Polymaps. So far reading and drawing GeoJSON from both Leaflet and ...
3
votes
1answer
176 views

How do I find overlapping attributes in two different layers?

I have two layers - one with country borders, and one with river basin borders - and I need to find a way to generate a list of basins that occur in each country. Is there a way to find overlapping ...
4
votes
1answer
866 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 ...
11
votes
3answers
6k views

How to create a GeoJSON that works with D3?

I'm simply trying to convert a .shp file to a geoJSON format using: ogr2ogr -f geoJSON output.json input.shp After executing the command nothing seems to be wrong. Here's an excerpt from the ...
2
votes
0answers
227 views

KML files to IPad securely? Altitude and shape problems in Google Earth

Does anyone know any options for maintaining privacy of the files and getting them onto iPad using Google Earth? Using Google account to link to Google Earth, privacy settings in Google my maps are ...
3
votes
1answer
414 views

OSS java approach to convert Shapefile to GML

We've got a project coming up where we need to upload .zip of a shapefile, join the .dbf to some lookup tables, join to other tables also uploaded (one to many attributes for each feature), and ...
4
votes
1answer
846 views

How can I export a shapefile to netCDF?

I have a shapefile of the worlds biomes Terrestrial Ecoregional Boundaries Shapefile (TNC), 12/14/09, 50MB download from available from http://conserveonline.org/workspaces/ecoregional.shapefile ...
7
votes
4answers
519 views

What are some alternative sources for USGS data?

I've been using the USGS National Map viewer (http://viewer.nationalmap.gov/viewer/) for getting data for QGIS, but the download system is driving me insane. I enter my email address and [sometimes] ...
5
votes
1answer
1k views

OGR Shapefile to CSV: Using Python to get WKT for multipart Polys.

Using ogr2ogr and python, I'm running into a wall with trying to create a csv with WKTs for a shapefile that contains multipart polygons. Currently this is this code I'm using (found it on interweb): ...
3
votes
1answer
558 views

Opening a shapefile with roads, how to display the roadnames?

I am using ((AxMapControl)myMap.AddShapeFile( directory, shapeFileName) To display a shape file which has road data. Now the roads display properly, but the road names aren't displaying. How can ...
1
vote
3answers
577 views

Merge Zip Codes to Create new sales Markets

Let me preface this question by saying I am very novice with respect to GIS. With this in mind, I am looking to merge zip codes into sales territories. Instead of plotting data by zip code, I want to ...
5
votes
2answers
1k views

Shape-file encoding problem in QGIS 1.9.0 (built with GDAL 1.9.2)

I have googled a lot but failed to find the answer. My configuration is: Ubuntu 11.10 Quantum GIS - 1.9.0-Master 'Master' (caae7b7) GDAL 1.9.2, released 2012/10/08 Shape-files refuse to open in ...
2
votes
1answer
329 views

Edit Shapefiles Attribute data in GeoServer Programatically

I'm rendering a shapefile using GeoServer and using OpenLayers library to render it in the web browser. Now I have created the option of editing the attribute data in web browser. I want the edited ...
3
votes
1answer
2k views

How to export shp to kml?

I already browsed your FAQs, and could not come up with a good answer, I am trying to export shp files to kml to be placed on Google Earth. On a previous version of QGIS it was as simple as right ...
6
votes
1answer
11k views

How to crop Shapefiles in QGIS?

I need to clip a large and very detailed .shp file in QGIS showing environmental data similar to a temperature map. Is there something like the very simple crop tool alike in photoshop where you can ...
0
votes
1answer
267 views

Does a polygon in a layer intersect with another polygon in the same layer [closed]

I am a CS major with little experience in GIS. I am working on vector polygon overlay. Looking at GML and shapefile data, I realized that a map is made up of a large number of polygons. Does a polygon ...
8
votes
1answer
1k views

How can I use fortify() to create a filtered R data frame from a shape file?

I am in the process of building a ggplot choropleth map of population in administrative areas in Wales. I have downloaded the Boundary-Line data from the Ordnance Survey and extracted what seems to be ...
1
vote
1answer
123 views

Extending ArcGIS

I've been tasked with a thesis project where i have to extend the features of ArcGis. I've been asked to create a model written in Python that can run out of ArcGIS 10. This model will have a simple ...
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. ...
1
vote
0answers
177 views

Best practice for loading shapefiles into ArcSDE geodatabase using web application

We are developing a web GIS using Flexviewer and we want to allow users to upload a shp file and insert it into a ArcSDE geodatabase. I think there are two steps at least. upload the shp file (zip) ...
3
votes
3answers
535 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 ...
8
votes
5answers
2k views

How to get an ocean shapefile from a very detailed land area shapefile?

I am looking for a possibility to "invert" a shapefile. What I want to do is to convert a shapefile with the continents and islands into a shapefile that has water polygons. The existing ocean ...
6
votes
1answer
1k views

How import a shapefile on-the-fly and have GeoServer render it instantly?

I am tasked with adding one feature to an existing app. It was built with OpenLayers and GeoServer. The task is to import a shapefile on-the-fly and have GeoServer render it instantly. However, I ...
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
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 ...
2
votes
0answers
335 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 ...
5
votes
4answers
313 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
1answer
173 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, ...
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 ...
1
vote
2answers
369 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 ...
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 ...
3
votes
1answer
745 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 ...
0
votes
1answer
180 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
134 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
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
2answers
261 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 ...
8
votes
4answers
793 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
168 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 ...
9
votes
2answers
10k views

Merge polygon in a shapefile based on a field value

Hello I have a shapefile with a lot of polygons in it. These polygons are grouped into a category: district. How can I merge the polygons based on the same name of the category within this shapefile?
1
vote
1answer
268 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
1answer
487 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
725 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
375 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: ...