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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0answers
369 views

Convert FeatureLayerClass to shape file error : Item not found in collection

so following this link http://edndoc.esri.com/arcobjects/9.2/NET/91e3e8a0-d355-43d2-a201-0a8ceb719334.htm I am able to convert my featureLayer into a shape file and export it. However, some how for ...
12
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4answers
3k views

How to reproject spatial data using free libraries?

How can I use free libraries to transform spatial data? For example, I want to change the projection of a Shapefile within the code of my C# web application. How do I do that?
10
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2answers
4k views

How do dissolve polygons from shapefile using open source tools?

In my current project I'm visualizing data on a map representing some values for each administrative areas of a country. I'm given a shapefile of this country, which I'm converting to GeoJSON for use ...
2
votes
3answers
622 views

How Can I Correctly Transform (Unproject?) from LCC

I am a complete n00b when it comes to GIS, so please bear with me. I started out by posting here: http://stackoverflow.com/questions/6963991/how-can-i-transform-the-coordinates-of-a-shapefile . In ...
6
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4answers
4k views

Where can I find a shapefile for the coastline of North America?

I am looking for a shapefile representing the coastlines of North America, such as something like this: http://www.diva-gis.org/gdata Does anyone have any suggestions?
6
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5answers
3k views

What is hierarchy (object model) of features in ArcGIS?

I'm new to GIS. My understanding of shapefiles is that they are (contain?) featureclasses, that contain features (points, polylines, polygons). Is there a clear hierarchy for these files. Would the ...
7
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7answers
34k views

Having problems with joining an excel table to a shapefile in ArcMap

I have a shapefile of lower layer super output areas (LSOA) for England and Wales and I have a spreadsheet of the indices of deprivation for each of the LSOA's in England. I want to join the ...
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1answer
486 views

How to join data in a spreadsheet to a shapefile ? [duplicate]

Possible Duplicate: How can i transfer data from a spreadsheet into a shapefile? I have data for Indices of Multiple Deprivation for the UK from this website: ...
5
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3answers
793 views

Looking for a .NET Dijkstra component using Shapefile

I'm totally new to stackexchange and i'm in this beautiful informative place for one problem. I'm a .net programmer and i need to write a program that reads a shapefile and performs routing operation. ...
7
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1answer
22k views

How to change the unit of measure from degrees to meters in QGIS?

I am running QGIS 1.7.0 on windows, and I donwloaded a shapefile of census block group boundaries from TIGER. This file appears to be in the WGS 84 coordinate system, and when I open it in QGIS the ...
4
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2answers
2k views

Kicking someone off a shapefile in ArcMap

I have ArcMap open, and someone else has the same shapefile open as me. How can I kick them off so that I can edit? I get the following error message: "Unable to save edits, cannot acquire a lock"
17
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3answers
11k views

Free tool to convert ArcGIS layer package (*.lpk) to shapefile (*.shp)?

I have received a *.lpk file from Esri's ArcGIS platform that I would like to convert to a shapefile. How can I do this, using only free software?
12
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2answers
586 views

How to clean such a bad shapefile for routing ?

I am trying to clean a shapefile to make it usable for routing with pgrouting, postgis, postgresql. Here an intersection, it seems to be connected but when we zoom …. It is not: Same here : ...
6
votes
2answers
2k views

Why is the dynamic text on data driven pages not displaying a value from the grid attribute table?

Relating to my question here, I've been trying to return a value from the attribute table using the following code: <dyn type="page" property="lu1p"/> However, even if I try to use a ...
5
votes
2answers
9k views

How to change projection and show latitude / longitude in QGIS?

I am new to QGIS and pretty ignorant with the subject, but I want to be able to see the latitude / longitude of a point (with a mouse click) in Quantum GIS. I imported a shapefile (roads of finland ...
6
votes
2answers
541 views

Calculate stop times/distances of transport lines - tools and procedure?

I need to calculate stop times of bus lines (extrapolation) I have: Shape file with all stops shape file with control points where bus time was taken Shape file with all bus routes csv file with ...
6
votes
4answers
2k views

Why doesn't the split tool return any records in the attribute table?

I've been trying to split a large land use shapefile using a set of study area polygons as the split feature, but when the function finally finishes running (the land use dataset is quite large), all ...
2
votes
1answer
222 views

From a shapefile, copy specific rows (defined by a separate table) to a new shapefile

I have a polygon shapefile of origin zones. I also have a polygon shapefile of destination zones. I also have a table that lists origin-destination pairs. I would like to create a multi-part ...
2
votes
1answer
97 views

Coordinates are not aligning

The two shapefiles (shp) are not aligning like they should (note the img). The layer and the two shp files have all the same coordinates - NAD_1983_StatePlane_North_Dakota_North_FIPS_3301_Feet The ...
3
votes
3answers
1k views

How to transfer data from spreadsheet into shapefile?

I am looking at Deprivation in the UK and there is some good data in the form of spreadsheets on this website http://www.communities.gov.uk/publications/corporate/statistics/indices2010 I would like ...
19
votes
4answers
5k views

How do you determine a shapefile's charset?

Is there a way to determine the charset used for a given shapefile?
5
votes
3answers
1k views

Fastest way to merge a feature

I am writing a arc engine application that can take a shapefile, and merge a set of polygons together. Here is the code that I am using to merge the polygons: private static void ...
2
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2answers
2k views

are there any shapefiles for a simple road network of the UK that are similar to what you would find on google maps?

I wish to add a shapefile to ArcMap that displays a road network which is similar to what you may find on google maps. I dont require a detailed ordnance survey map, just the roads
1
vote
1answer
160 views

How do you search for a particular attribute from the attributes table?

I am working with a postcode shapefile which has over 8000 attributes and wish to search for particular attributes without having to scroll through thousands of others, is there a way of searching and ...
8
votes
4answers
2k views

Fastest spatial storage format?

I am wondering what storage method will result in the fastest reading of the map vectors for rendering. SHP? PostGres? SQLite? (They do not change often and I do not need spatial functions for these ...
3
votes
2answers
862 views

Getting/downloading shapefile from OpenLayers/Web page and saving to local disk

I have developed a web application where i am using GeoServer and OpenLayers. I have displayed some Layers over Google map in a ASP.Net Web Page. I want to know is there any Method or Script available ...
0
votes
1answer
280 views

Where to get raster files of Earth, united states [duplicate]

Possible Duplicate: Open access repository of general GIS spatial data? I'm brand new to GIS programming so please excuse my lack of knowledge. I am developing a GIS web app using ...
2
votes
6answers
6k views

Error importing Shapefile to PostGIS using Importer GUI

I'm trying to import a shapefile into a PostGIS database using the graphical importer. I just installed POSTGRESQL, and PostGIS. The GUI looks like this: After testing that my database worked, I ...
1
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1answer
91 views

Online resources for creating shp files performing basic GI functionality

I am looking to build polygons, based on files containing a grid of points. The representation of the polygon would be an aggregation of the points. As the end wares are ESRI, I was wondering if ...
1
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1answer
823 views

Last edited information missing when used QGIS - Dxf to Shp

I am doing as constructed drawings which require the information to be in a GIS system and more specifically drainage as constructed drawings. I must have a separate file for Pipes and Pits. First I ...
3
votes
1answer
290 views

Polygon Shared Boundaries in GML

Last week I was told on a phone conference that GML supports shared boundaries in Polygon's. I have been unable to find any documenatation to substantiate the claim. Here is the situation: I have a ...
2
votes
2answers
408 views

Shapefile CRS changed after exporting from QGIS. Are they equivalent?

I added a shapefile as a vector layer in qGIS 1.7 so that I could join in additional attribute data (not geodata) from another DBF file. The Shapefile that I added has this CRS (as far as I can tell ...
4
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1answer
2k views

Extract parcel layers from vector pdf

So, I have an interesting problem... I have a PDF file which has over 100 pages and each of these pages is displaying a map in vector format. By using some third party program I was able to find out ...
4
votes
4answers
8k views

Tool for converting .shp file to .tab file?

I am searching for any free tool which can convert ShapeFile (.shp) to MapInfo (.tab) file.
5
votes
3answers
3k views

Python: Combine multiple Shapefiles

i have got a lot of Point-Shapefiles (r20010101.shp, r20010202.shp, r20020101.shp...). Each of them has the same amount of points at exactly the same location. In a column that is named after the Date ...
2
votes
0answers
2k views

Adding shapefile causes ArcMap Drawing Errors (General function failure)

I am creating a map that is a hodgepodge of databases, stand alone shapefiles, and a couple image services. Everything seems to go as expected until I add a certain shapefile to the mix. Then all of ...
1
vote
1answer
533 views

Using kriging with data in GDB

I have series of data in my GDB I am running the program under VBA and what I want to do is using the data by the tool Kriging. This is what I thought: First, Kriging needs data that must be a ...
5
votes
1answer
2k views

Extracting Lat/Lng from Shapefile using OGR2OGR/GDAL [closed]

I'm trying to extract lattitude/longitude values for the streets in this shapefile: http://gispub02.sfgov.org/website/sfshare/catalog/stclines_streets.html I've seen it reommended in many places that ...
4
votes
1answer
945 views

Convert from shapefile to GPX with selected attributes

I have a points shapefile that originally came from a GPX file (imported using QGIS). The original GPX file contained waypoints only and has disappeared. The shapefile has many attributes, but only ...
13
votes
7answers
18k views

Where can I find a shapefile of city boundaries in the US?

Where can I find a shapefile that contains boundaries for the major cities in the United States? I have tried the census website but could not find anything.
23
votes
2answers
4k views

Python Efficiency — Need suggestions about how to use OGR and Shapely in more efficient way

I'm looking for some suggestions about how to make my python code more efficient. Normally efficiency doesn't matter for me but I am now working with a text file of US locations with over 1.5 million ...
8
votes
3answers
6k views

Converting Shape Polyline-M to Polyline using ArcGIS Desktop?

I have some pretty old software that I am forced to use (no option). It's old enough that it doesn't recognize shape files of type Polyline-M, it only recognizes shape files of Polyline. I have a ...
5
votes
3answers
3k views

2010 Census Tiger County shp file with defined coastal land area

I am looking for a 2010 Census Tiger Shape file that hugs the coastline and doesn't include the ocean in county boundaries. I have a pre 2010 file that did this and I can't seem to find a 2010 ...
7
votes
3answers
323 views

How to check if parcel is located by golf course

Is there any simple way for me to run millions of parcels through some type of script to see if a shape file parcel is on a golf course? For example if I have a layer that has all the golf courses and ...
14
votes
7answers
4k views

Free tool to simplify parcel shapefiles?

Is there any tool available which let's me run millions of parcel shapefiles and simplify them?
9
votes
4answers
420 views

Identify corrupt shapefiles or rasters via Python or ArcObjects

I'm interested in a way to identify rasters (e.g., ESRI GRID format) or shapefiles that are corrupt that would prevent them from being used in an analysis tool. I have a large number in structured ...
5
votes
2answers
1k views

Converting feature class with domains to SHP file

I have a feature class which has coded value domain associated with it. The code and the description are different. For example, I have coded value domain for pipe diameter. For pipe diameter of 8" I ...
3
votes
5answers
3k views

Export shp spatial data to Corel

Hi I need an printable administration map of a country. I would like to use it in Corel Draw for some colour manipulations and poster printing. I have found the map on http://www.diva-gis.org/ but it ...
0
votes
2answers
531 views

How to find the Local Government Area name using lat/long?

I'd like my iPhone app to respond to the device owner with his/her Australian LGA (local government area) name using their lat/long. I've found this page below with a Shapefile: ...
7
votes
2answers
3k views

what is the best way to programmatically convert between WKT and Proj4 string?

some shapefiles have a .prj file associated with it. and the .prj file contains the projection info of the shapefile in the format of WKT. Sometimes I need to convert WKT to proj4 string, and ...