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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527 views

How to convert lines to start points and end points?

I know there are several ways to convert lines to points in Qgis but I have not been able to find a solution that will convert the file so that it indicates if the point is the start point (upstream) ...
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22 views

Where to download shapefile of 2km Tetrad squares for UK? [duplicate]

does anyone know where I can download a shapefile of 2km Tetrad squares for the UK please? A google search wasn't very helpful so I thought I'd try here. A Tetrad is derived from the British ...
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413 views

How to share ArcMap shapefiles with QGIS?

I'm trying to send a ArcMap 10 shapefile for a QGIS user and something happens with attribute table during the process. Columns will be rearranged, hidden digits will appear to coordinate columns and ...
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68 views

By converting into a shp file points are reduced

I am new here, so sorry if I missed something, but when I try to converta data from an xls file into a shp file by export data, all the points I had before get reduced to only one?! I also want to ...
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28 views

calculating mean and standard deviation for raster values using whole pixels within a polygon [duplicate]

i have a raster image and a corresponding shape file. i would like to calculate the statistics of the values within polygons which have a common attribute but only using pixels which are fully ...
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20 views

Read (old?) Trimble files into ArcGIS? [duplicate]

I have a number of files that I believe are from a Trimble GPS. The file extensions are: .cor .gic .gip .gis .giw .gix .obs .obx .SSF I need to be able to map the data in ArcGIS (these are old ...
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78 views

Merge (a lot of) features using QGIS or other open source

I have one shape-file with a lot of features (polygons) and if I try to merge these into one big polygon in QGIS it takes days to complete the merge. So I wonder if there is another way? I saw this ...
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247 views

why readOGR() is not reading projection information from .spj - r

0 down vote favorite I successfully import a polygon shapefile with readOGR, however the information in the .prj file is not being imported. test class : SpatialPolygonsDataFrame nfeatures : 19407 ...
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120 views

Exporting XY data to .shp and I lose my points

I have coordinates (sampling points) as part of a larger excel file that I am trying to convert to a .shp file to overlay on a map. When I add them to Arc as XY data they display just fine, but when ...
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70 views

Routing using .MP file format

I am having .MP file for a particular map location, the .MP file consists of points and polylines. Now I want to find the shortest path between two points. What is perfect and simple method to find ...
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322 views

How to read vector datasets using GDAL library

Up to now, I have used GDAL in order to read raster information and geotiffs and show them with the help of OpenGL. Now I have a vector dataset, and by that, I mean I have the files with types: DBF ...
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889 views

Add new rows to a shapefile

I'm using QGIS. When I enable editing of a shapefile's table attributes and select, 'open attribute table,' is it possible to add new rows to the shapefile's table attributes? The problem I'm trying ...
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300 views

Drawing a map of a country with specific boundaries/zones using postcodes latitude and longitude

I'm quite new in geocoding - it has been fun! My project is to draw Australia with specific boundaries/zones using R program. I was able to successfully upload a shapefile of Australia in R program, ...
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199 views

R program and shape files

I have an R program that sketched a country. This is done by reading a shape file that contains the coordinate of a country (latitude and longitude). How do I export the data from shape file into ...
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254 views

Conversion from .shp to.swf?

Does anyone know which free software can I use to convert a .shp file to a .swf?! I have created a shapefile on QGIS which I would project on STAT PLANET PLUS. In addition, I would like to display ...
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242 views

How does geoserver determine what SRID to pass to PostGIS [OPERATION ON MIXED SRID GEOMETRIES]

We are using Geoserver to render some data onto maps in a web application. The map shapes are read by Geoserver from a postgis database. The shapes are imported into postgis using the ogr2ogr utility. ...
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41 views

Creating Periodic table with geoserver

I'm trying to create a periodic table using geoserver and openlayers. I'm trying to do this in geoserver as I want the periodic table to change colors. But I'm new to geoserver and not sure which ...
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91 views

How to add a field to a .zip shapefile?

I am exploring the possibility of using ArcGIS Online (Free Public Account and Explorer) with my new Global Studies students. (So far, the Free Public Account appears to be more user friendly and ...
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59 views

QGIS: (Shapefile) Convert rings to fake-rings?

I hope I can make my question I posted yesterday clearer... sorry! Basically, I want to obtain the opposite of this: How to convert fake donut holes in polygons to real ones? Such polygons will ...
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169 views

Why am I unable to save shapefiles layers? (other layers work fine)

I'm a very new user on QGIS. I've managed to find mostly all I needed to use the software, however today I came across some problems similar to those encounted by [someone else][1]. However, when I ...
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72 views

Which landmark to detect a CBD?

Anyone knows what shapefile (ArcGIS) available to detect a CBD (Central Business District), nationwide? Some use city hall as the landmark for a CBD. Is it applicable to use Courthouse? Where can I ...
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54 views

Vector grid out of range

I'm working with QGIS 1.8.0 trying to do some vector grid to a map. This shapefile (the original is a zip and has the following files .dbf, .prj, .sbn, .sbx, .shp, .shx) has some strange CRS and I ...
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1k views

How can I create new shapefile in QGIS1.8 from “Save selection as…”

when select a shapefile feature from census boundary file and use "save selection as" to create a new shapefile, program returns error: "Export to vector file failed. Error: creation of layer failed ...
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99 views

FME incorrectly reading SHP file schema in reader

I am trying to read in a SHP file using the FME SHP file reader and some of the fields are not being read in correctly to FME. This is causing random values to be introduced into the dataset. The ...
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34 views

how to divide a Area shapefile into multiple segment, so that each segment will be a seperate feature in attribute table? [duplicate]

I'm very new to GIS, I'm using QGIS and here's what I want to do: I have a shapefile of an area . I want to divide that area into multiple segment (not grid), so that each segment will be a ...
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94 views

Why does a shapfile shift after transformation?

I have a shapefile created in the raster package (ER_14.3_2000_poly). > #read in a raster file > ER_14.3_2000<-raster('E:/Ecoregions Models/Outputs/ER_14.3/ER_14.3_ConsensusMap3.asc') > ...
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22 views

Shapefile is not a valid or recognised data source. [duplicate]

I have some shapefiles that I have been using before, some months back, but now I try to load them into QGIS but I get the message: districts.shp is not a valid or recognised data source. I realise ...
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234 views

How to convert shapefile to tpk using python(ArcGIS 10.1)?

I'd like to convert shapefile to tpk using Arcpy.I surf in ArcGIS 10.1 help but i couldn't find any desire reference to help me . How can i convert shapefile to tpk using arcpy ? which function i need ...
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1answer
296 views

Problem with showing Shape file in Geoserver

I have a number of Shape files from a customer. I can read them with both ogrinfo and QGIS. They don't have a prj-file, but I know that the projection is EPSG:3006. When I add them as layers in ...
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144 views

Convert shapes in CSV to shape file

I have a csv file in which one of the fields contains a "shape" polygon in ESRI format. The other fields are textual, numerical, ext. How do I go about creating a layer from only the polygons in the ...
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158 views

Grass won't import shapefiles

I have a problem involving the import vector data command, specifically importing shape files. I installed QGIS on a pc at work and there I could import shape files into GRASS GIS 6.4.3RC2 (which is ...
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237 views

catchment delineation

I am trying to use qgis to delineate between three sub-sub-catchments. I have contour shape file of 20 meter height. Sub-catchment is about 12 square kilometers area but consist of three ...
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801 views

Problem reading attribute with Python using osgeo.ogr

I am working thru "Python Geospatial Programming" and I have a problem in a program in Chapter 6 that I cannot seem to solve. The small program: import osgeo.ogr shapefile = ...
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1answer
222 views

ST-Links convert Feature Class to DB Table error

I'm using ArcMap with the ST-Links SpatialKit Conversion tool to convert a Feature Class to a DB Table. But I'm getting an error: ERROR: 42601: type modifier is not allowed for type "geometry". I ...
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1answer
158 views

I want to change using C# the style of a set of shapefiles once I have uploaded them or while I am uploading them

I am using C# and the WebRequest class to create a worksapce and then another WebRequest to create a datastore and upload a folder full of shapefiles to a geoserver. However, I would also like to ...
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1answer
180 views

Shp2pgsql - exec() not allowed on external server

Me and my collegue are using the shp2pgsql and psql commands in php code (a Drupal module to be precise). We put these commands in a php variable and use the exec() command to execute them. This ...
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1answer
189 views

Saving part of OSM shapefile in QGIS as GeoJSON strips 'name' field to 25 characters long [duplicate]

I want to copy part of OSM data in ESRI Shapefile (downloaded from http://download.geofabrik.de/europe/ukraine.html ) and save in in GeoJSON to style later in Tilemill. After saving, I see that ...
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198 views

Help in GRASS/QGIS/Python

I have Idea about ArcGIS, and a bit of QGIS and zero programming knowledge, which I am trying for thesedays. I saw GRASS GIS and have started working with shapefiles, which are not being loaded... :( ...
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45 views

Convert Shp to Dxf with QGIS [duplicate]

8.0. I have asked this before and seen similar but not the same (all of which I Have not got an answer to so not a duplicate). But is there a way to export a shp as a dxf so that it will not crash ...
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54 views

Where to find Data with site that have hazardous, toxic or radioactive substances?

Does anybody know where to find data that lists the location of sites that have hazardous, toxic or radioactive substances? I'm working on a HUD project and need to be able to find out if sites for ...
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84 views

What vector file type yields the greatest detail with the Heat Map plugin?

I'm using .shp files built from .csv files and having quirky results. Perhaps there is a better way to begin. The heat map appears to be accurately describing the data but calculates a huge area in ...
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116 views

Does anyone know of Electric Company Boundary Shape files that are out there for Free?

Ohio has a great website for their Electric Service Commission and I am looking for a shape file or data that would get me the service boundaries of electric companies for other states. EIA has data ...
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38 views

How to convert ArcMap *.shp to MapInfo *.tab file? [duplicate]

Possible Duplicate: Tool for converting .shp file to .tab file? I have files in ArcGIS format, I want to export some layers to Mapinfo files as tab file
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168 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 ...
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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 ...
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79 views

Trouble with making shapefile from xls file

Using DIVA GIS, each time I attempt to import some species data from an xls file to be plotted onto a map, the program becomes very slow and eventually becomes unresponsive. My dataset originally ...
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54 views

Shapefile to ArcGIS JavaScript JSON format? [duplicate]

Possible Duplicate: How to convert SHP into GPX or JSON? We're in the proces of adding a new feature to our Web Application where we employ the use of ESRI's ArcGIS Javascript API alongside ...
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1answer
472 views

shp2MySQL GIS Import Coordinates Not Correct

I'm attempting to import the Chicago Neighborhood Boundaries into a MySQL database from the shape files available at ...
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50 views

How we add XY coordinates (in the attribut table) from shapefile (points) using QGIS? [duplicate]

Possible Duplicate: How to get the coordinates in Lat/long from a point layer? I created a new shape file and edited to add points at specific location. Now, I would like to extract the XY ...
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70 views

GIS web development [duplicate]

Possible Duplicate: Steps to Start Web Mapping I want to create a Web GIS using an open source software.Also the software should be capable of importing shape files and kml.I have good ...