Press Release

Cadcorp gains acceptance for its Open GIS Coordinate Transformation Services Specification

At the recent Vancouver meeting of the Open GIS Consortium in February 2000, Cadcorp delivered and demonstrated a proposal for the specification of an Open GIS interface for coordinate transformation. This was accepted by the Consortium.

The Coordinate Transformation Services (CTS) Specification, as it is known, provides interfaces for general positioning, coordinate systems, and coordinate transformations. Cadcorp has already fully implemented a profile of the CTS specification within Microsoft COM (Common Object Model).

The CTS specification consists of two major packages:

Coordinate System package
Coordinate Transformation package

Coordinates can have any number of dimensions. So the Cadcorp specification can handle 2D and 3D coordinates, as well as 4D (space + time), 5D etc. The Coordinate System package could eventually replace the 2D Spatial Reference package contained in the current Open GIS Simple Features specifications, (the Simple Features specification defines the handling of standard GIS data structures such as points, lines and polygons). However, it has been designed to work in conjunction with Simple Features during any transition period.

The Coordinate Transformation package allows points to be transformed between any coordinate system. There are also hooks for allowing the same coordinate transformations to be used for transforming arbitrary geometries and images, with full and robust support for warping and tearing.

This is yet further evidence of the ground-breaking work being carried out in GIS by Cadcorp and follows in the wake of Cadcorp SIS software being certified Open GIS compliant for Simple Features, the acceptence of Cadcorp's work in the creation of the Open GIS Grid Coverages Specification, (for remote sensed images) and work in the Open GIS Web-mapping Testbed (WMT).

About Cadcorp

Established in 1991, Cadcorp are a leading developer of Geographic Information Systems (GIS) software. Based in the UK and USA, the Cadcorp distribution and VAR network stretches worldwide. Cadcorp play a pivotal technical role in the OpenGIS Consortium. Cadcorp SIS Spatial Information System is a range of modules covering spatial data viewing, data management, data editing, data modelling and analysis. Cadcorp SIS Active X components are available for embedding into third party systems. Cadcorp ASC is Internet/Intranet developer toolkit designed for Web based GIS solutions. Cadcorp SIS applications exist in Local Government, Emergency Services, Mapping and Surveying, Commerce, Broadcasting and many others.
About OGC

The Open GIS Consortium, Inc. (OGC) is an international, not-for-profit industry organisation dedicated to the full integration of geospatial data and geoprocessing resources into mainstream computing. In addition to developing the Open GIS Specification in the OGC technical committee, OGC works to inform the geoprocessing community about open geoprocessing issues and developments and promotes the widespread use of interoperable, commercial geoprocessing software, on a world-wide basis. OGC currently has some 200 members, split roughly 40/60 between the USA and the rest of the world. Members include geoprocessing software developers, IT industry leaders and government agencies, including the UK’s Ordnance Survey.

ENDS

For further information, contact: Chris Holcroft, Tel: 01438 747996, e-mail: chris.holcroft@cadcorp.com

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