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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12
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1answer
440 views

The next big thing in standardized spatial data exchange format?

I remember reading something a few months back, in the latter half of 2012, about a coordinated group effort to design a new standard for sharing geographic / spatial data. It has or aims to have the ...
4
votes
2answers
1k views

Why don't some layers line up afer converting Mapinfo TAB to Shapefile?

I have 6 MapInfo layers / TAB files which I need to convert to ESRI ShapeFiles, preferably using QGIS. When a colleague opens these in MapInfo 10, they all look fine and line up correctly. When I open ...
1
vote
1answer
402 views

tools and ETLs for migrating data benchmarking - from shapefile to SQL SERVER

i need to migrate my shapefiles to my database SQL SERVER, and i don't know what's the best tool or ETLs to choose, i already tried FME Desktop and i succeded to load the shapefiles on my db, but ...
1
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0answers
50 views

Spatial adjustment for vector shp files in QGIS [duplicate]

How to do spatial adjustment for vector shp files in QGIS? I have a set of 4 cadastral maps of adjacent locations. I have converted them form DWG to DXF and then to vector shapefiles. They are not ...
2
votes
1answer
846 views

How do I map data by zip code?

I have a set of data that corresponds to zip code, and I'd like to turn that into a map. From what I've gathered thus far, zip code shapefiles are difficult to find and work with due to the fact that ...
6
votes
1answer
227 views

GIS storage format for better performance - Android device

We have developed an android application which loads different eco-zones and does geo-fencing based on current GPS location. We have converted a shapefile to KML, then to JSON format, for loading in ...
2
votes
2answers
827 views

Why are edits in shapefile table not saved?

I have created a shapefile (point data) and wish to change some parameters in the files table data. I can edit the data and see the coresponding change in my my symbology. However, when I save the ...
4
votes
1answer
330 views

Export KML to SHP in Javascript

I need my Javascript browser application to convert/export KML documents into ESRI shapefiles. Is there any JS library that can do it? I tried googling, but no answers so far (at least, not in ...
4
votes
4answers
2k views

Updating 30 Shapefiles, adding attribute and populating based on data

I need to add an attribute to each shapefile attribute table in ArcMap, I was thinking to do it in SQL, but I'm not sure how to go about doing it since I'm very new to ArcMap. Can someone explain to ...
4
votes
4answers
9k views

How to Read a Shapefile using C#?

I am new to ArcGIS and trying a few things.. I'm trying to read shape file(which is supply as an input) using c# and I want to generate a .pdf file which contains underlying metadata information ...
2
votes
1answer
406 views

Using a map from ESRI Server in a radMap

I was wondering if there was a way to use a map that I have stored on an ESRI server in a telerik radMap. I am not very familiar with the radMap control so any help would be appreciated. I have found ...
2
votes
1answer
505 views

Create a shapefile from geometry

Please excuse my lingo, I am still learning some aspects of geo spatial and arcpy. I have a python script that takes a shapefile. The shapefile consists of a polyline. I have traversed the polyline, ...
6
votes
2answers
812 views

How is the default label field chosen by ArcMap?

I have 2 questions: I know how to manually go to Layer Properties>Labels tab>Label Field and choose my label field. I also know that I could set up my primary label field and save the setting as a ...
4
votes
2answers
815 views

Splitting DXF layers into Shapfile layers in QGIS?

When i load a dxf into QGIS all the layers are present in the attribute table. Is it possible to split this "entities" layer in QGIS into its component parts and save each component part as an ...
1
vote
3answers
1k views

Exporting 2 shp layers to geojson using quantum GIS

I will explain with an example: I have 2 shp files for Tanzania. Tanzania inland waters http://www.diva-gis.org/data/wat/TZA_wat.zip Tanzania administrative boundaries ...
5
votes
1answer
446 views

How to determine optimal windmill placement to maximize production?

How can I add automatically the maximum number of points (dots) with 6m diameter and 100m distance each point from other into an area. The dots will present the windmill base (6m) and I want the ...
2
votes
0answers
77 views

Applying depth to Shapefile

Apologies if this question has been answered before. I'm digitizing a historic coastline and would like to add a single depth figure to it in order to merge it with a current contour model. Is there ...
1
vote
0answers
192 views

How to use GDAL to burn a selected value from one raster into another?

I think this should be a relatively simple process, but I'm not quite sure how to approach it. I have a shapefile containing 1000's of polygons. I also have 19 rasters. All of the polygons fall ...
8
votes
3answers
1k views

How to get a list of distinct values from a shapefile field using QGIS?

I have a shapefile whose features I can filter by specifying a where clause in the query dialogue. F.x. I have a field named 'city_name' and by stating 'city_name = "London"' in the where clause only ...
2
votes
1answer
207 views

How to fix the “The inserted Ring is not contained in a feature”?

I am trying to add a ring in a feature in a shapefile. This feature is a single part feature but has already a few rings. When I try to add the new ring, I have the error message : "The inserted Ring ...
8
votes
1answer
3k views

How to convert GDB data to shapefiles without ArcGIS?

We've got some data (supposedly it's a simple collection of points--or at least that is all we need to extract) from a 3rd party in a GDB folder (I don't know how to tell what version) but we don't ...
0
votes
3answers
192 views

Where can I download public data set, especially shape file? [closed]

The places I know include: http://www.weogeo.com/ http://geocommons.com/ http://koordinates.com/ Any other suggestions?
1
vote
1answer
43 views

How can I convert an Integer field to a Real field in a shapefile?

How can I convert an Integer field to a Real field in a shapefile ? I'm searching a tool, or a way to do that (may be under QGis ?!). Regards
3
votes
1answer
165 views

shapefile batch clip and merge combined

I have two shapefiles, one is polyline, the other polygon. For each polygon I would like to clip the polyline vectors inside. Using arcpy I already found part of a possible solution: ...
1
vote
0answers
151 views

What is the best way to create polygons on a map and download files associated with the polygon?

My client wants to build a tourist site and for that he wants a backoffice for the map and the ability to draw polygons on the map (that user can see). When the user clicks on a polygon, he gets a ...
3
votes
0answers
764 views

How to join data from a CSV to a shapefile using QGIS

I'm new to GIS and new to StackedExchange. I need help joining a CSV of Accessibility data to a LSOA shapefile in QGIS. The process explained here does not work for me and I don't know why. The ...
3
votes
2answers
162 views

How to modify two polygons which have common point and line at the one time

I would like to modify two polygon at the one time because these two data has same point and line. Is it possible?? In the present circumstance, I have to modify polygon one by one. First, I ...
2
votes
1answer
118 views

Case sensitive query of shapefile in ArcMap 10

I am an IT guy, not a GIS guy. What I know about how to use ArcMap 10 I learned from Google. It has served me well so far. Apparently what I'm wanting to do worked in version 9, but no longer does in ...
1
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0answers
78 views

Decent Alabama GIS Clearinghouse?

Alabama's data portal (portal.gsa.state.al.us) is down and I haven't come across any other GIS clearinghouses for AL that are as good as say, Florida's FGDL. Does anyone know of a decent GIS ...
4
votes
1answer
937 views

Revealing the different layers of a shape file in QGIS

Shapefile I am referring to is 'NUTS_RG_03M_2010' which is together with several other Shapefiles available in a ZIP file on the Eurostat web site. the ZIP file the available map sets at Eurostat I ...
8
votes
1answer
766 views

Polygon creation (Clockwise rotation or not)

According to "ESRI Shapefile Technical Description An ESRI White Paper—July 1998", Vertices for a single, ringed polygon are, therefore,always in clockwise order. Otherwise,"Dirty" polygons occur when ...
2
votes
0answers
232 views

How to convert shapefile to mapinfo file preserving special characters?

I have to convert a bunch of shapefiles to mapinfo files on a machine without a MapInfo license, so I am using ogr2ogr to perform this task. The problem is that when opening the mapinfo files in ...
6
votes
1answer
431 views

Add polygons to existing shapefile in QGIS

I'm completely new to GIS and this is a very basic question about editing existing shapefiles. I am working off an existing shapefile which was digitized (by a colleague) so that polygons represent ...
4
votes
2answers
125 views

Creating space at intersection of two links

I have a shapefile consisting of two links which are crossing over each other. I want to create an empty space at the point of intersection of the two links. As of now, I have been manually doing ...
4
votes
3answers
382 views

How to subset X number of features from Shape file in QGIS

I'm looking for a means to take a rather large Shape file and split it out into separate, smaller shapefiles based on number of features. So for example, if I have a file with 1 million features, ...
3
votes
0answers
748 views

How to Export a Shapefile as KML Using R

All, I have exported an ESRI shapefile (polygon) to KML using R, but the resulting layer shows only the outer extent of the polygon. How can I fill in the area with a color? Any help is greatly ...
2
votes
1answer
360 views

How to fix encoding problems with Turkish characters? [duplicate]

Possible Duplicate: How to read Greek fonts (ISO-8859-7) in shapefile attributes within QGIS 1.8.0? My shapefile contains turkish (latin) letters. (see: ...
3
votes
4answers
1k views

What are the advantages either way between GML and ShapeFiles?

After a good start many months ago of getting into GIS through QGIS, I had to drop what I was doing and did not touch it for quite some time. I am now able to get back into it and have a need to load ...
6
votes
2answers
252 views

How can I turn a vector layer into a graph G = (V, E)?

I have a number of rail networks, in the form of shapefiles of the "line" type. I want to turn them into a more abstract graph format, i.e. the kind with vertices and edges, not chart-type graphs. ...
7
votes
1answer
166 views

Reading shapefile tolerance in python

Is there a way to get the cluster or xytolerance from a shapefile into python using free/open source software? I'm currently using the pyshp package and can't see methods for this anywhere. Also it ...
4
votes
2answers
347 views

How do I Capture GDAL projection and create matching output (OGR or GDAL) shape files?

Working in C++, using GDAL and OGR: Depending on what the user has supplied for image input, I need to output point (or other) shape files in the same projection as the input raster images. The ...
4
votes
0answers
192 views

How to get exact featureinfo in wms layer Geoserver [closed]

I got neighbor polygon feature info instated of clicked polygon feature info. In My Code: getfeaturenfo :function(e) { coordinates=e; var params = { ...
13
votes
3answers
624 views

How can I represent distance using the dashes or markers of a vector line?

I am a very basic user and dont know the lingo to get to the gist of my question so some background might help. Ive volunteered to create a pre-incident planning system for my rural fire department. ...
2
votes
3answers
516 views

Removing duplicate rows from a shapefile

I would like to write some c# code to delete duplicate rows from a shapefile stored in a folder. Can anyone provide me with an example or pointers on the best way to attempt this, please?
6
votes
1answer
691 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. ...
6
votes
3answers
226 views

Are there any open source Python modules compatible with arcpy that will allow complex SQL queries?

I am trying to handle string (non-geometry) duplicates in a large attribute table of a shapefile without having to convert to gdb and back or connect to a postgres db. I need to be able to use a count ...
3
votes
2answers
531 views

How can I keep the color of the shape file in arc constantly?

I am using arc gis 9.3 when I use a color for the shape file it changes everytime when I close and open the arc map so how I can constantly keep the color of the shape file that I work with
6
votes
1answer
601 views

How to connect places (points) without crossing lines?

I have two sets of data. One with placemarks represented by blue dots in image below, and another set of geographic data with lines represented by grey lines. 1) For the first point in drawing, I'm ...
4
votes
2answers
549 views

Easiest way to create measured intervals between shape points

I need to import a scanned photo of the outcrop (geology project) and re-create the grid from which i took plug data- each plug point will be drawn as a shape point file. The plugs were taken on a ...
3
votes
1answer
130 views

Points warped when exporting to shape

I have recently purchased a Trimble GeoXH (used) and have done a few surveys. I have done differential correction in Trimble Pathfinder Office and all points seem fine. When exporting to shape and ...