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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3k views

Calculating sum of geometric length of shapefile in ArcGIS Desktop?

I have a shapefile with lots of line routes. I projected it and calculated the length using calculate geometry. How can I get the sum of all these routes in ArcGIS Desktop?
2
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3answers
968 views

Comparing and reporting shift between two shapefiles using ArcGIS Desktop?

I have two shapefiles. One is an original route polyline file and another is an updated polyline file, where the shape is modified to google maps. How can I compare the updated shapefile with the ...
4
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2answers
2k views

Dividing Earth into continent polygons

Is there a simple (low res is fine) polygonal data set that divides the entirety of Earth's surface into continents, with no overlap and no area excluded? Specifically: North America, South America, ...
2
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2answers
1k views

Where can I get a multipoint shapefile?

I'm trying to find a multipoint shapefile to do some testing for an application I'm working on, but I cannot seem to find one (and do not have ArcGIS to create one). Can anyone suggest a place to find ...
2
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1answer
1k views

How to meassure the length of common edges between polygons?

I have a shapefile that contains several polygons which in fact represent the limits of several counties. My task is to find each length of each shared border. So in other words I want to know how ...
5
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3answers
1k views

Checking for number of shapefiles in directory using Python?

I want to test: to see whether or not ONE AND ONLY ONE shapefile (which will be based on a filename wildcard) exists in a directory. Add these shapefiles to a list Use this list variable as an ...
4
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1answer
1k views

How does QGIS handle opening files and how can I improve this?

We are using shapefiles with a large attached database to it (162 Mb for 133000 features) Opening this shape file on a remote server takes about 5 minutes whereas DivaGIS takes 7 seconds for the same ...
2
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1answer
413 views

merging TIGER Line shp files for better labeling in ArcGIS

When working with TIGER line shp data at county level scale the labeling of roads, rivers, railroads, etc. is cumbersome due to all of the tiny line segments. Merging the dozens of segments that ...
4
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1answer
13k views

Click a marker icon to open a pop-up, using OpenLayers

Background Looking to create a pop-up that performs an Ajax request when the user clicks a marker on an OpenLayers map. The markers, however, have different icons. The following is working code that ...
5
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1answer
15k views

How to import shape file into SQL Server 2008 R2 using only SQL scripts?

I am trying to import some shape files into SQL Server 2008 R2. I found this useful tool called Shape2SQL however I am not sure how I can import shape file directly using only SQL scripts as this is ...
2
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3answers
14k views

Merging Two or More Layers using ArcGIS for Desktop?

I am working with three clipped layers that are shown in the TOC. I created these layers from a large watershed shape-file. However, each clipped layer includes the layer before it and only expands on ...
3
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1answer
477 views

Python: shp file to GML using OGR

I am trying to convert a shapefile to GML 3.1.1 . I am using gdal 1.9.1 however the GML conversion it generates for a geometry feature is GML 2 and it also swaps the long/latitude coordinates. Are ...
3
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1answer
166 views

Converting Spidertracks GPS flight tracks into shapefile or kml?

I have some data that will be comming to me from helicopter flights and was recorded with Spidertracks software. Does anyone know how to convert flight tracks from 'Spidertracks' gps flight tracks ...
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3answers
10k views

How to display a Shapefile on a browser? -offline-

Plot points on a Shapefile like this: https://github.com/gka/pyshpgeocode and then convert it to HTML and display it on a browser? Is this practical method to display the map on a browser? Any cons ...
2
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2answers
3k views

Create points from lines

I used the Bearing Distance to Line command (Data Management) in arc to convert UTM coords (i.e. of a plot center), bearing and distance to the figure shown below. The end of each line represents a ...
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2answers
2k views

How to batch convert Shapefiles to GMLs?

I know how to do this within Quantum GIS but I have 30+ shapefiles that need to be converted to GML. Is there a Python script sample or plugin for Quantum GIS that I can use to convert my shapefiles ...
4
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1answer
2k views

How to save a newly created shapefile in PostGIS?

I am creating shapefile using shapefile.py and my database has records more that 65k which is the limit of the shapefile. How can I create shapefiles then? Is it possible that somehow I am able to ...
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1answer
1k views

Aligning coordinate systems: gpx, LiDAR, shapefile

I am working on a project based on a lidar data set (for use in LidarViewer in Linux, a basic x,y,z viewer) that was downloaded from #1 below at Opentopo.org and looking to add onto this data set with ...
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1answer
269 views

Finding the area of a polygon feature in a shapefile [closed]

Excuse the very simple question. How do i find the area of a selected polygon feature in a shapefile?
5
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1answer
141 views

Tools for discovering spatial data defects

Spatial data often have defects that may include incomplete polygons, sleathers (non-uniform administrative boundaries), overlaps, having points that belong to more than one polygon, etc. I have a ...
3
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3answers
1k views

Add date to feature class name?

I still working on my big project, big at least for me, but I am currently stuck on this: I have a lots of .shp, that I want to move to a gdb. While creating a feature class, I want to add date (YMD)...
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2answers
373 views

Problem with Coordinate Tolerances when I export my .shp files to .mdb

When I export my shapefile to a personal geodatabase using ArcMap, the result is not the same as the original database. I do not know how to solve this problem.
3
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1answer
928 views

Polygon with the same points over and over

I am in the process of reading shape files (provided to us by the vendor dealing with GIS products) using a C# program and loading them into a SQL database. I first read the text for the shape and ...
1
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1answer
342 views

problem after merge shapefiles, can't show it on OpenLayers with GeoServer

I have 5 .shp files, after merge it with geomerge, I can't use it on OpenLayers with GeoServer. it's only show white layer and when i click it, it show error message: Internal error occurred ShapeType ...
10
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1answer
1k views

Conflate (merge) private shapefile data with OSM data

Background Downloaded Alberta OSM data from Geofabrik and have it running on a private Linux server using PostgreSQL 9.1, PostGIS 2.0, Mapnik 2.1.0, osm2pgsql, Apache 2, mod_tile, renderd, and ...
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1answer
727 views

one row is discarded while importing shapefile into postgres

Please help me in following issue. I need to import a polyline shapefile into Postgres9.1 through shp2pgsql command.When i did like this, i got an error as "NOTICE: CREATE TABLE will create ...
4
votes
1answer
303 views

How to generate xml for use with geoxml3

I have a kml and shp I would like to convert to an xml to use with geoxml3. How would I go about doing such a thing? The xml I generate should look something like this: <?xml version="1.0" ...
5
votes
2answers
10k views

Arcpy - How do I specify the precision and scale of a new field?

I'm wanting to create a field with a maximum of 1 decimal place and then calculate a value into it: (I know that all my values are < 10) arcpy.AddField_management('C:/shapefile.shp', 'myField', "...
2
votes
2answers
166 views

Selecting suitable web GIS for project? [duplicate]

I need to develop a web-based map using existing shape files. Using the web-map, we must be able to select a region and produce contours for that selected region. Can any one suggest the best open ...
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 can'...
0
votes
1answer
119 views

Raster and shp overlap not working with user CRS mercator

I created a GeoTiff raster in python, that is projected with the following CRS: *"+proj=merc +lon_0=34.9586601257 +k=1 +x_0=-0 +y_0=1453756.01544 +a=6370997 +b=6370997 +units=m +no_defs"* When I load ...
2
votes
1answer
533 views

QGIS apply style to shapefile

I'd like to create a Categorized style in QGIS, classify with it data in a shapefile and then save the shapefile with the new categorized style. Is it possible?
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2answers
727 views

How to have a nullable field included in a shapefile using the Geotools library?

I am trying to add a new field to a shapefile and need it to store null values. But by using SimpleFeatureTypeBuilder from the Geotools library and then using the Add command, it is not giving the ...
0
votes
0answers
56 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 ...
1
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3answers
1k views

Automatically assign numbers to point file in various order in QGIS

I know how to automatically assign numbers to a new point files using the $rownum function in the field calculator. However it does it from the top-left over and down like reading a book. I could ...
6
votes
2answers
2k views

Is it possible to change the field length of a shapefile to over 255?

The maximum field length that I can specify is 255 and because of that I'm having problems with the input attributes, which have a size greater than 255. What alternatives are there for having longer ...
4
votes
2answers
7k views

How to convert bearing, distance, xy coordinate measurements to point shapefile?

I have a natural resources dataset where individual seedlings in canopy gaps were recorded from a center "legacy tree" within each canopy gap. Each sapling has the following measurements associated ...
7
votes
4answers
17k views

How do I load a .dbf file into QGIS?

I want to use QGIS to extract lat/lng data from the vertices of polygons. There are about 400 polygons, each with maybe 200 vertices. I am having trouble with step one, getting the data into QGIS. ...
2
votes
1answer
2k views

Basic User Questions: Tracing a Border in QGIS

The project: I'm plotting a dilapidated cemetery, I'm using GPS waypoint data to plot the headstones in QGIS. The map I'm making is to show the orientation of the graves, and who is in them. I ...
1
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3answers
1k views

Update shapefile data source with wildcard using python

I am attempting to update a layer's data source in Arcmap using python for lyr in arcpy.mapping.ListLayers(mxd, "*", df): if lyr.name == "project_whl": lyr.replaceDataSource("F:\\Jobs2012\...
2
votes
2answers
1k views

Unable to create shapefile using shapefile.py

I am trying to create shapefile from csv data using shapefile.py but i am constantly getting this error, Traceback (most recent call last): File "createShp_Davis.py", line 31, in <module> ...
4
votes
2answers
517 views

Eliminate small polygons from shapefile

I downloaded GTOPO30 *.DEM files, and extracted a contour line at 2000m altitude using gdal_contour. In the resulting shapefile, I have many small polygons in areas where the altitude is close to that ...
4
votes
1answer
1k views

How to use DotSpatial to project/reproject shapefiles on the fly

I would like to use DotSpatial to reproject shapefiles on the fly before loading them to GeoServer. I've been looking for tutorials on how to get started with this in vain. Any pointers on where I can ...
2
votes
1answer
486 views

Uploading unprojected shape files using GeoServer REST API

I have a number of shapefiles that lack the .prj file. I'm able to upload them to geoserver using the rest api. However, I'm unable to serve them after upload. Which brings me to the question as to ...
2
votes
1answer
475 views

How to generate thumbnails from shape file and display them on my website?

I tried to generate thumbnails from shape file and display them on my website(using jsp).I had been read this and this question .Very similarity questions ,but I know nothing about python... Is ...
4
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1answer
909 views

How to upload shapefile to PostGIS using cURL and GeoServer REST API

The GeoServer REST API docs here does not detail how to do this. I'd like to create a PostGIS table and corresponding featureType in GeoServer using the REST API, without having to chain requests. ...
5
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1answer
1k 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 ...
6
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1answer
2k views

Why does QGIS Simplify Geometries delete entire polygons?

I am reducing the size of a world timezone shapefile, http://efele.net/maps/tz/world/tz_world_mp.zip But at a 0.01 tolerance, entire countries disappear Anybody know a way round this? QGIS shows ...
5
votes
1answer
2k views

Move .SHP from .MXD to gdb [duplicate]

Possible Duplicate: How to move SHP to gdb with ArcView license? Let's cut it short, I have numerous mxd with layer coming from .SHP and various servers WMS that I need to move to a gdb. What ...
4
votes
1answer
4k views

Upload Shape File using GeoServer REST API and C#

I'd like to upload shape files using GeoServer REST API and C#. So far, I can create workspaces using the REST API and C#. From GeoServer documentation (specific to cURL), the difference between ...