36 | Chapter 4 Enhanced Layer Functionality
Summary of Enhanced Layer Functionality
This release of Autodesk MapGuide provides powerful new tools that you can
use to enhance the results of your work with layers. Specific new features
included in this release are as follows:
■ Access to API for enhanced layer functionality. Provide access to the
enhanced layer functionality API for a layer. See “Providing Access to the
Enhanced Layer Functionality API” on page 37.
■ Enhanced geometry functionality. Apply geometry functions to selected
features on maps. See “Using Geometry Functions,” on page 39.
■ Enhanced spatial query function. Add filters to queries to limit the data
returned by a query. See“Applying Filters to Spatial Queries,” on page 42.
■ Custom spatial query functionality. Execute custom queries instead of the
default Autodesk MapGuide spatial query. See “Using a Custom Spatial
Query,” on page 46.
■ Pre- and post SQL statement functionality. Execute SQL statements before
and after Autodesk MapGuide performs a spatial query against a layer. See
“Using SQL Pass-Through Statements,” on page 55.
■ Ability to track new enhanced layer features using trace log parameters.
See “Tracking Enhanced Layer Features,” on page 58.
