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Chapter 7
Getting Familiar with Autodesk MapGuide Author
Note
Depending on the map’s coordinate system and the area displayed
(smaller areas tend to be more accurate than larger areas), distances may not be
accurate. To improve the accuracy of distances, you can select a coordinate sys-
tem that has accurate or partly accurate distances, keeping in mind that the areas
will then appear distorted.
You use the View
Distance command to measure distances.
For step-by-step instructions, choose Help
Contents, click the Index tab,
and look up “measuring distances.”
In the previous illustration, Autodesk MapGuide Author displays the
distance between Paris and Bern, 373 miles, in the yellow MapTip popup.
Because only one segment was measured (the distance between two points
only), the total distance is the same as the distance of the segment.
Selecting Map Features
When you select features on the map, you can then view a report that
provides information about the selected features, or you can adjust the map
display to zoom to the selected features. The number and type of selected
features are displayed on the status bar at the bottom of the map.
You can select map features only if you enable the Make Map Features Select-
able option on the General tab of the Map Layer Properties dialog box. For
more information, see “Specifying General Properties for Layers” on
page 159.
Note
When you select a map feature, Autodesk MapGuide Author selects the
feature by its key. Therefore, if you select a map feature that contains multiple
points, each of which has the same key, each of those points will be selected. Sim-
ilarly, if there are multiple features in the map with the same key, selecting one of
those features will select all features that share that same key.
Help Index
selecting map features
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