KAS Software

Suppliers of map viewing and coordinate conversion software, bespoke digital maps, height data and gazetteers

Software Development
Rtap/Plus Consultancy

MapView is a free-to-use Windows® raster map viewing program. Its supported map types include the geotiff format, USGS DEMs, and the open specification gdf format, used for large custom-made composite digital maps.

Using data available via the Ordnance Survey's OpenData™ initiative maps, height data and gazetteers for Britain and beyond have been created. Composite OpenData™ height data map, most gazetteers and all smaller scale maps are royalty-free and can be downloaded free.

mapView can be used with a wealth of free mapping data from the internet: with height and map data from the OS OpenData project it allows for map & 3-D views of all parts of Britain; USGS geotiffs and the USGS National Elevation Dataset combined allow the same for the US; Canadian geoTIFFs and DEMs provide extensive coverage of Canada; other countries have patchier data availability. Overall there's a lot of free data out there.

We've created maps using data from a variety of sources: USGS geotiffs and NED data; OS OpenData geotiffs and gridded elevation data; Land Information of New Zealand geotiffs; SRTM and ASTER elevation data for worldwide height data.

We can also supply USGS geotiff quadrangle files, which are themselves freely available for download from numerous US state and government websites (there's a comprehensive list of internet geoTIFF resources elsewhere on this site). There's an awful lot of these files available for each state - for example Arizona is covered by over 1,900 1:24,000 scale geotiffs, amounting to around 11Gb of geotiff files (plus another few hundred 1:100,000 & 1:250,000 scale maps for that state). There are some sample composite maps (and matching elevation data), created by merging these original geotiff files, available for free download on this site.

Above and below are screenshots from mapView. Above is an OpenGL view of a USGS 1:24,000 scale GeoTIFF of Mt. Shasta draped over USGS NED elevation data. Below a further map created from USGS data. All maps were created by KAS Software and use our open specification gdf map file format.

MapView can also show maps in 3D using directX. These maps are again in gdf format, but contain extra information to support a Level of Detail (LOD) approach to the display of large 3D maps, and allow for quite a convincing fly-through of the terrain.

KAS Software

General C Programming

Any type of C programming work can be undertaken for any platform, simply contact info@KASsoftware.com

map viewing software

The mapView map viewing software is free for private use and with full searchable gazetteer functionality, GPS connectivity, and full printing support, it's a comprehensive map display application. Please email info@KASsoftware.com with any comments.

gdf format

This open, scaleable, gridded-data-file format developed in-house provides for storage of large volumes of raster data in a single file - easy to read, easy to debug. Have a peek at sample height file, map file and gazetteer file gdf header info.

About KAS Software

KAS Software Ltd provides digital mapping, software development and troubleshooting consultancy services, for Linux/Unix and Win32.

Free Windows map viewing program

(c) KAS Software Ltd, 31st May 2016

Contact us
by Phone:
by Mail: info@kassoftware.com
KAS Software Ltd
Company history

Established 1997
Registered in Scotland

Useful links

Links you may find useful ...
· OS OpenData
· data.gov.uk
· Google Maps viewer
· OS Open Space WMS viewer

Design & Sponsors
template design
mediatac suchmaschinenoptimierung
template sponsored by
schuhe guenstig & stiefel online