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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2
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2answers
24 views

How to merge shapefiles of two countries with QGIS

I want to merge the shapefile of Nigeria and Cameroon admin level 1. I downloaded the files from gadm but I cannot merge the files with QGIS or find a shapefile of Africa having countries at states ...
1
vote
0answers
11 views

organizing attribute table: multiple sets of variables per point

I would like to have hints on the best way to organize my dataset (I am working with ArcGIS 10.1, advanced license). I would like to build a points layer, each point being a weather station in the ...
0
votes
1answer
23 views

How to create a shapefile or gml from a Oracle database using SDE.ST_Geometry?

I have a ORACLE database 10g(Oracle Database 10g Enterprise Edition Release 10.2.0.3.0) with a SDE.ST_Geometry field and i want to make a program in python so i can create several shapefiles based on ...
6
votes
4answers
162 views

GIS analysis to find duplicate geometries

I have a big shapefile that contains all the buildings and houses of the town that I work in (approx. 90,000 features). The data of the buildings/houses are saved by the town's surveying engineers and ...
2
votes
1answer
56 views

How to cut and paste polygons in QGIS so they don't overlap?

I use QGIS, and I need to cut and paste polygons so they don't overlap. Here's what I mean: I have shapefiles for cities that I'm pasting into a new polygon shapefile. I also have shapefiles for ...
5
votes
2answers
84 views

Adding new record with specific coordinates into shapefile using ArcGIS for Desktop?

I need to create a new point record in my shapefile. When I use the Create Features tool in the Editor tool, I can click anywhere on my map to create a point, but when I go into the attribute table to ...
2
votes
2answers
45 views

Convert shapefile with lists to data frame in R

I would like to ask some help for converting a shapefile to data frame. I downloaded data related to roads from Natural Earth. I imported the shapefile using shapefiles package like the following. ...
1
vote
0answers
57 views

Using r, readShapeSpatial fails with simplified mapshaper.org shape

So I'm mapping out the postal regions of my country and it's an enormous, 5.4million row dataframe. I don't need every single little twist and turn of the boundries, so I was super excited to ...
-3
votes
0answers
30 views

Exporting group layers from Table of Contents (TOC) to Folders of shapefiles?

I have some group layers in the Table of Contents (TOC). Each group of layers references a few shapefiles from different source folders. I would like to export each group layer name as a folder and ...
1
vote
3answers
44 views

How to find all distinct values from a single column of an attribute table with GDAL (Python)?

I am working with GDAL and modify ESRI shapefiles with it. I am searching a possibility how to find all distince values from a single column of an attribute table with GDAL (Python). In SQL it would ...
-2
votes
1answer
50 views

Exporting file geodatabase (GDB) to Folder of shapefiles?

I have a geodatabase with several feature dataset and feature classes associated with it. I want to export each feature dataset as folder and feature classes associated with each feature dataset will ...
2
votes
0answers
51 views

Identifying certain polygon from overlapping set

To clean up a large shapefile, I am looking for a way to do the following: I have the ID of many polygons which need getting rid of stored in a list. These polygons are villages and a second ...
4
votes
2answers
153 views

How to save .shp to .csv so that the Name is in the first “column” of the .csv?

I am trying to convert a point shapefile to .csv with locations in QGIS. The problem I am having with the conversion is mainly that, in the resulting .csv file I would like to have the Name and then ...
5
votes
2answers
65 views

Is there a standard for the specification of .prj files?

We use shape files for data exchange. I've looked at the .prj files: different programs produce different prj files. Is there a standard how the parameters must be specified in a prj file? AFAIK the ...
0
votes
2answers
34 views

problem with csv.writer output Python 2.7 [closed]

I cobbled together a script from hacked bits around the net that works pretty darned well except..... The screen return is perfect but the csv contents (filename and path) have deliminators in them. ...
1
vote
1answer
30 views

Problem with projection of Slovenian Shapefile in QGIS

I hope someone can help me for this: I'm doing my masters thesis in Slovenia (in the field of wildlife management), for this I got a Shapefile of slovenian data by the University. As a main layer, I ...
0
votes
2answers
44 views

Parse PHP/HTML to shapefile or similar

I've been experimenting with scraping spatial data from a web page (www.majidata.co.ke). I've managed to find the source of the vector data from within a webpage though and have saved a chunk as HTML ...
1
vote
0answers
32 views

Why does the postGIS file lose geometry?

I am loading shapefile data from a GPS into PostGIS via Leica ZenoOffice. This apparently imports fine with it's geometry in the attribute table. However, when I add a postGIS layer in QGIS the file ...
1
vote
0answers
18 views

Cannot produce pie chart in QGIS 2.2

I have a shapefile to which I joined two tables from a MySql database. I used one column of the first table to color the polygons in my shapefile which works fine. Three columns out of the second ...
1
vote
1answer
27 views

Using ArcGIS for Server and ArcSDE for importing shapefiles?

Is there a way to use ArcGIS Server web services to perform the task below? I have .NET ArcObjects code to import shapefiles to Spatial DB which works on ArcGIS for Desktop. This code used ArcSDE to ...
7
votes
1answer
77 views

Adding Route Shapefile (PolylineM) to QGIS?

I'm new to QGIS (and to this amazing forum as well) and I already have an issue : I received a Route Layer in SHP format (PolylineM). I've easily loaded this file into QGIS but it doesn't seem to ...
3
votes
3answers
124 views

Can a shapefile, or other file, be made from Excel without coordinates

I have two Excel spreadsheets I'd like to make into shapefiles, or some equivalent. I have access to ArcGIS at work and want to try using GRASS as well. I have seen the help on doing so, but only if I ...
1
vote
1answer
71 views

Export to SHP with ArcPy with query

I have a shapefile with table with area code (field areacode). How can I export with ArcPy each unique area code so I get a SHP file for each one? It takes too long to select the layer and query ...
1
vote
1answer
27 views

How can I clip multiple geotiff tiles with a shapefile without greatly increasing their size?

I'm using gdalwarp to clip a number of geotiffs (tiles of a larger map) to a polygon described by a shapefile (which is about the size of the overall map, i.e. much larger than individual tiles) ...
12
votes
4answers
394 views

What is the difference between Coverage, Shapefiles and Geodatabases in ArcGIS?

I was wondering about the difference in spatial data storage methodology used by Coverages, Shapefiles and Geodatabases in ArcGIS. Coverage was the initial format, followed by Shape Files and now ...
4
votes
3answers
120 views

Can you recycle shp and shx files in a shapefile vector grid where only dbf data changes?

I'm periodically getting data from an external partner that is bound to a very large vector grid in shapefile format. The grid itself sits at around 400~ megabytes, but the only data that ever changes ...
1
vote
0answers
18 views

Create Polygon with inner polygons from KML or Shapefiles?

I am creating a windows forms application and I want to create a polygon from a KML or Shapefile as a layer on top of a Google Satellite map. Today I am using GMap.NET that got an polygon object but ...
2
votes
1answer
36 views

shapefile to gmt format

I have an ESRI shapefile of the contours of my study area, and I want to convert it into a format that is acceptable by GMT, so I can make an elevation map of my study area. Is that even possible? ...
1
vote
2answers
47 views

Avoiding R for windows gui front-end has stopped working error?

I am trying to load huge number of points (shape file) in R. But when I load it, the program displays following error message and just stops. "R for Windows GUI front-end has stopped working" My OS ...
1
vote
0answers
51 views

Convert polygon data into extreme lon/lat coordinates using QGIS

I'm very new to QGIS. I have a shape file of census blocks and want to use the data to plot points within each boundary using Google Maps api. I figure the best way to do this is to find the extreme ...
0
votes
2answers
46 views

Shapefile to Network xml

I have a shapefile representing the US freight highway network available from Oak Ridge National Lab. I'm trying to prepare this as a .xml network for processing with MATSim. The output structure is ...
1
vote
2answers
67 views

Vertical lines in a polygon shapefile

I am working with a GIS problem using a single input of a polygon shapefile. Consider an irregular polygon. I want to draw vertical lines across the extent of the polygon at equal spacing. How I ...
2
votes
3answers
181 views

Polygon Shape Data for North America

Does anyone know where I can get data like this for north America (for use in SSRS). It does not have to be exploded. If I add Bing maps my 36 page PDF is 250MB when exported!
1
vote
1answer
26 views

32bit to 64bit topology errors

Can generating a shapefile from a pgdb cause topology errors due to floating point conversion? I am running into gaps in a line layer of really small distances (order of 10^-4; CRS EPSG:2227 usft). ...
2
votes
0answers
41 views

Exporting feature class from Geodatabase to shapefile, shortens/abbreviates field values in resultant file?

I'm exporting feature class (File Geodatabase) to shapefile, after exporting the field values in resultant shapefile is shortening, like if a field value is Andhra Pradesh then in Feature class ...
6
votes
3answers
193 views

Is the filename of a shapefile the same as its Feature Class name?

This is a very basic question, but I'm not finding the answer on Google or here... I have a bundle of files I have to submit in an incredibly specific format. Our sub-consultants gave us a set of ...
1
vote
1answer
63 views

ArcMap “Could not open the specified file”

Has anyone ever encountered this message? I am getting this when I try to open certain shapefiles. I am working on a problem that generates shapefiles from spreadsheets using ThinkGeo's .NET tools. ...
1
vote
0answers
17 views

Good KML conversion program [duplicate]

I recently used the GPSlogger app and created KML files from my routes. I haven't been able to successfully convert them to shape files. Does anyone know a good downloadable program that converts ...
2
votes
3answers
113 views

Shapefiles of Central America and Mexico coastlines?

Does anybody know/has a shapefile of Central America + Mexico (WSG84) (with no administrative boundaries) at a low resolution that could share with me? I'm looking for a very simple shapefile without ...
2
votes
0answers
36 views

CRS problem: not recognizing the CRS of shapefiles to be the same for all

I'm attempting to aggregate (average) the attributes a point layer to polygon attributes (i.e. block groups and counties) via a spatial join. Both the points and polygons are in the same projection - ...
3
votes
2answers
105 views

How to iterate through features in a shapefile using R?

I am interested in iterating through a point shapefile to perform tasks on a point by point basis using R. In Python, this can be accomplished using the following workflow: import arcpy shp = ...
2
votes
3answers
62 views

How can I convert a set of ShapeFiles to an OSM file?

How can I convert a set of ShapeFiles to an OSM file?
-2
votes
1answer
62 views

Converting GeoNames csv file to shapefile?

How can I convert a Geonames csv file (downloaded from http://download.geonames.org/export/dump/) to a ShapeFile?
2
votes
2answers
35 views

Counting number of points in particular polygon for list of individuals using R?

I have distribution points for a set of individuals and a file of polygons-with matching IDs. What I would like to do is to go through and for each individual find the total number of points and the ...
3
votes
1answer
84 views

Getting StatPlanet to work with custom shapefile and data?

I'm assigned to get StatPlanet Plus working with some 3rd-party data to display a thematic map, on a Mac. I have the custom regions and attribute data in a map.shp/dbf. And I've configured the ...
1
vote
1answer
30 views

correct projection of GADM data

I'm trying to use a map of Austrias districts from the GADM project. The Shapefile can be found here: AUT_adm.zip (All other formats provided by the project appear exectly equal.) The coordinate ...
1
vote
2answers
39 views

Bulk SHP/KML Processing Tools

I need to accomplish two things in bulk: Convert SHP to KML Modify the fill and outline color and opacity either of SHP or KML files What tools can you recommend for these two tasks? I've tried ...
4
votes
1answer
53 views

Convert ESRI Shapefile to Raster using R - biggest polygon area to raster cell value?

I want to create a raster from an ESRI shapefile. Multiple polygons may exist in one raster cell. If so, I want to assign the attribute variable which occupies the biggest area of the raster cell. ...
1
vote
1answer
40 views

Bringing information from one shapefile into another using ModelBuilder?

I’m trying to use the ModelBuilder to fasten up my work in ArcGis but I don’t know how far I can use it and what’s possible. Here is my problem: I want to analyse agriculture parcels regarding to the ...
2
votes
1answer
76 views

Creating perimeter around multiple polygons using ArcGIS for Desktop?

This may have a simple answer that I'm just missing. I have multiple polygons in one shapefile I would like to make a larger Polygon around all of them. Is there a tool that is able to do this? ...