Table of Contents
Overview
Thematic mapping allows the display of data with aggregated numeric totals in iShare Maps or iShare GIS. The data may have been prepared using the Astun Geopivoting functions, but if not, must still meet the necessary requirements in terms of tabular structure, namely the presence of a column of a numeric data type representing the values you wish to display, and an unique field such as ogc_fid. See the Geopivoting topic for information on how to include these in your dataset.
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Before you can configure Thematic Mapping you need to have installed the GPT Statistics component from the AstunPGInstaller onto your Data Share database. Tick the box for GPT Statistics on the Install Options dialog.
Configuring your MapServer .MAP file - only required pre v5.6.0
Once the table has been created with the required structure, it can be configured as a layer in the MapServer map file. It is a PostGIS layer, which requires some additional parameters.
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For details on how to configure your Thematic Layer in Studio please refer to the to the following:
- V5.6.0 or greater - see OGC Layer Configuration to create your OGC Layer and then OGC Layer - Advanced Thematic & Geometry Options to configure the Thematics.
- Pre V5.6.0 - Thematic Layer Configuration
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