KAS Software

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


Software Development
Rtap/Plus Consultancy

KAS Software Ltd

We've developed a free-to-use Windows map viewing program - mapView - for the display of digital raster maps in traditional 'flat' format, in 3D, or with height shading applied. Supported raster map types include the geotiff format - used extensively by the Ordnance Survey and the US Geological Survey (USGS) - USGS DEMs (Digital Elevation Models), and our own open specification gdf format, used for large custom-made composite digital maps.

Using data available via the Ordnance Survey's OpenData™ initiative, we can supply maps, height data and gazetteers for Britain and beyond. Our composite OpenData™ height data map, most of our gazetteers and all our smaller scale maps are royalty-free and can be downloaded at no cost whatsoever.

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.

The mapView application was developed in 2004/2005 (using C on Visual C++) as a map viewer for Ordnance Survey 1:25,000 & 1:50,000 scale maps which I was then licensed to sell. It lay dormant thereafter for a few years until the first OS OpenDataTM data release in 2010 put a significant volume of free map, height & gazetteer data into the public domain, which acted as a spur for a wee smidgen of further development.

We've created maps using data from a variety of sources - some publicly available like USGS geotiffs and NED data; OS OpenData geotiffs and gridded elevation data; Land Information of New Zealand geotiffs and SRTM elevation data. We've also created maps (which are not for sale) by easily extracting data by simple observation - without using any form of software reverse engineering - from legally purchased maps from the likes of Satmap and Memory Map, Anquet and others.

Our gridded-data file format (as exemplified in this sample map file) provides an easily readable container for the storage of large volumes of raster map data in JFIF, PNG, 8-bit colour map and other formats.

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.co.uk with any comments.

free internet map data

mapView can be used with a wealth of free mapping data on 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 but there's a lot of free data out there.

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, 4th Jan 2013

Contact us
by Phone:
by Mail: info@kassoftware.co.uk
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

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