Useful Links

Here's a collection of links that we like.  If there are links that you think would be useful to other users of Voxler, Strater, Surfer, Grapher, MapViewer, or Didger, let us know, and we'll include them!

Do you have a web site with nice graphics that you produced with our software?   Let us know, and we'll include a link to your site!

Free Geographic Data   ·   Purchase Geographic Data   ·   Geographic Data FTP Sites

Tablet Manufacturers and Drivers    ·   Geostatistics Software Packages

Free Geographic Data

Golden Software Boundary and Data files: www.goldensoftware.com/boundary.shtml

The Map Place  http://www.mapplace.ca/ 

Digital Chart of the World Server from Penn State University Libraries
http://www.maproom.psu.edu/dcw/

National Atlas of the United States  http://www.nationalatlas.gov/atlasftp.html

Boundaries from the U S Census GIS Data Depot www.census.gov/geo/www/cob/

GIS Data Depot data.geocomm.com/

USGS Main Page: http://www.usgs.gov

DEMs and DLGs from the USGS:
http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html

Resources for geographers: 
http://www.Colorado.EDU/geography/virtdept/resources/data/data.htm
(This site has a bunch of links to data, including DEM's, DLG's, etc.)

Census Home Page: http://www.census.gov

AI-Geostats Links about spatial data analysis:  http://www.ai-geostats.org/.

Lat/Long lookup for international cities: http://www.calle.com/world/

Lat/Long lookup for major international cities: http://www.bcca.org/misc/qiblih/latlong.html

Purchase Geographic Data

All Topo Maps (Digital USGS Topographic Maps): http://www.alltopo.com/

ChartTiff (Digital Geographic Data): http://www.charttiff.com

DigitalGlobe (Aerial and Satellite Imagery): http://www.digitalglobe.com 

DRG Maps (Digital USGS Topographic Maps): http://www.drgmaps.com/

GlobeXplorer (Aerial and Satellite Imagery): http://www.globexplorer.com/

Land Info (Digital Geographic Data): http://www.landinfo.com/ 

Land Processes DAAC (DEM coverage of the entire world): http://edcdaac.usgs.gov/gtopo30/gtopo30.html

MapMart (Digital Geographic Data): http://www.mapmart.com/

MidTex Mapping Services Co. (Texas County oil and gas maps and pipeline maps in DXF format):  http://www.midtexmapping.com/

MJ Systems (Raster Image Well Logs): http://www.mjlogs.com/

Space Imaging (Aerial and Satellite Imagery): http://www.spaceimaging.com

WhiteStar (Digital Geographic Data): http://www.whitestar.com

Petroleum Geographics Corporation (Digital Base Maps, Geographic Data, and Aerial Imagery): http://www.petroleumgeographics.com/

Petroleum Geographics (PLSS Land Survey, Texas Land Survey, Surface Geology, Oil and Gas well info): http://www.petroleumgeographics.com

 Geographic Data FTP Sites

DEM files from the USGS:  ftp://edcftp.cr.usgs.gov/pub/data/DEM/250

 Sol Katz's BLM GIS Utils:  ftp://ftp.blm.gov/pub/gis/

Tablet Manufacturers and Drivers  

ACECAD: Main site ; Driver downloads  

GTCO/Calcomp / Summagraphics: Main site ; Driver downloads  

Genius: Main site ; Driver downloads  

WACOM: Main site ; Driver downloads    

Numonics:  Main site ; Driver downloads

Digitizer Technology:   Main site ; Driver downloads  
Digitizer Technology offers Windows drivers for a variety of digitizing tablets. These drivers are Wintab compatible.

Geostatistics Software Packages

VarioWin:  http://www-sst.unil.ch/research/variowin/index.html

GeoEAS:  http://www.epa.gov/ada/csmos/models/geoeas.html

GeoPack:  http://www.epa.gov/esd/databases/geo-pack/access.htm