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Shape Files Reference

Purpose

This topic provides resources about maps and geo-spatial related material as well as information about shape files. Use these resources to learn about and obtain shape files as well as tools for their editing before starting to bind geo-spatial data to the XamGeographicMap™ control.

In this topic

This topic contains the following sections:

Resources

Geo-spatial Overview

Before plotting geo-spatial data in the control, one should get familiar with the following resources which provide general information about maps and geo-spatial data.

  • Wikipedia – Cartography

http://en.wikipedia.org/wiki/Cartography

  • National Atlas of the United States – Geographic Locations

http://nationalatlas.gov/articles/mapping/a_latlong.html

  • National Atlas of the United States – Map Projections

http://nationalatlas.gov/articles/mapping/a_projections.html

  • U.S. Geological Survey

http://www.usgs.gov/

  • Wikipedia – Map Projections

http://en.wikipedia.org/wiki/Map_projection

  • University of Colorado – Map Projections

http://www.colorado.edu/geography/gcraft/notes/mapproj/mapproj_f.html

  • CSISS – Map Projections

http://www.csiss.org/map-projections/index.html

Shape Files Format

The XamGeographicMap control uses popular Shape Files format as one of the sources for geo-spatial data. Shape files are usually shipped with other file types, generally files with .shp, .shx, and .dbf extensions.

The following table provides basic information and purpose for each type of shape files.

File Extension Description

.shp

A shape file contains geo-spatial vector data items that describe points, polylines, and polygons. In the shape file, points may describe cities, polylines may describe roads, and polygons may describe shapes of countries in geographic context.

.shx

A shape index file contains an index for a quick lookup of a geo-spatial vector data items.

.dbf

A shape database file contains a table in which a row corresponds to each geo-spatial data item from a shape (.shp) file. In the shape database file, columns may describe attributes for geo-spatial data item such as strings (names of countries, regions, cities) and values (population of countries, location of cities).

Refer to the following resources for detailed information and specifications on how geo-spatial data is stored in shape files.

  • ESRI - Shape File Technical Description

http://www.esri.com/library/whitepapers/pdfs/shapefile.pdf

  • Wikipedia - Shape File Description

http://en.wikipedia.org/wiki/Shapefile#Overview

Shape File Tools

The following list provides resource tools for editing shape files.

  • MapWindow – Shape (.shp) and Database (.dbf) File Editor

http://www.mapwindow.org/

  • Open Office – Database (.dbf) File Editor

http://openoffice.org/

  • DBF Editor - Database (.dbf) File Editor

http://dbfeditor.com/

  • DBF View - Database (.dbf) File Editor

http://dbfview.com/view-dbf-file.html

  • Satellite Signals – Geo-spatial Calculator

http://www.satsig.net/degrees-minutes-seconds-calculator.htm

  • RITA – NORTAD to Shape Files Converter

http://www.bts.gov/publications/north_american_transportation_atlas_data/html/data_converter.html

Shape Files Data Sources

The following list provides resources for obtaining shape files. Also, samples for the XamGeographicMap control are good source of shape files. These shape files are included in the installer for the Samples Browser.

  • ESRI - World Map Data

http://www.esri.com/data/download/basemap/index.html

  • ESRI - Census 2010 Tiger/Line® - Shape Files

http://www.census.gov/geo/www/tiger/tgrshp2010/tgrshp2010.html

  • National Atlas of the United States – Shape Files

http://www.nationalatlas.gov/atlasftp.html

  • U.S. Census Bureau – Cartographic Boundary Files

http://www.census.gov/geo/www/cob/index.html

  • U.S. Census Bureau - 2007 Tiger/Line® - Shape Files

http://www.census.gov/cgi-bin/geo/shapefiles/national-files

  • U.S. Federal Executive Branch – Raw Data

https://explore.data.gov/catalog/raw/

  • NOAA – Shape Files

http://www.nws.noaa.gov/geodata/

  • CDC - Shape Files

http://wwwn.cdc.gov/epiinfo/script/shapefiles.aspx

  • Massachusetts Geographic Information System

http://www.mass.gov/mgis/massgis.htm

  • Geo Commons – Shape Files

http://geocommons.com/searches?query=shapefiles

  • Geo Community – Shape Files

http://data.geocomm.com/catalog/

  • RITA – NORTAD Files (Must-be converted to Shape Files)

http://www.bts.gov/publications/north_american_transportation_atlas_data/

  • MapCruzin – Shape Files

http://www.mapcruzin.com/download-free-arcgis-shapefiles.htm

Related Content

The following topics provide additional information related to this topic.

Topic Purpose

This topic provides information on how to bind shape files with geo-spatial data to the XamGeographicMap control.

This topic provides information on how to use geographic series in the XamGeographicMap control to display geo-spatial data.