This sample uses the TatukGIS Internet Server to publish vector map layers held in an SQL database, and shows the thematic/color presentation of forestry related data stored in a joined SQL database. "Drill down" functionality (select "identify" to drill down) provides on-line users access to the linked database via the map interface. The "active" legend feature (click on a legend item) redraws the map to present only a single category of data. The sophisticated presentation of various line types and fills in this sample conform to the specifications of a particular client.

This particular server-based thematic map is part of a set of ten such custom thematic map presentations of forestry data that comprise a commercial forestry management solution designed to replace the need for custom desktop GIS viewers. In the commercial application, the TatukGIS IS map server application running on a Windows server is linked to the forestry management database running under Informix on a separate mid-range server. Storing the vector map layers to an SQL database in the commercial application offers several advantages: i) much faster attribute querying against very large vector files, ii) real time reflection of updates to the linked database, iii) and multi-user editing possibilities.

The code for this sample will be provided as one of the download samples to accompany the release of the TatukGIS Internet Server product.