Autodesk 15606-011408-9330 User Guide - Page 140

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 system 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 Help Index 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 Selectable 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. Similarly, 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. 140 | Chapter 7 Getting Familiar with Autodesk MapGuide Author