Autodesk 15607-010000-5000A Manuale Utente

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Chapter 4

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.