Autodesk 15606-011408-9008 - MAPGUIDE R6.3 NAMED-100U PK, User Manual

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Setting Style Properties for Layers
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Using these ranges and styles, Autodesk MapGuide Author draws the roads
with heavier line styles as the zoom increases.
When setting up multiple style sets for a layer, make sure that the display
ranges do not conflict. For example, the ranges 500,000 – 5,000,000 and
2,000,000 – 10,000,000 conflict, because the second range overlaps the first
one. In such cases, when the current map scale is within the overlapping
display range, Autodesk MapGuide Author displays the features using the
styles of the first style set in the list only.
Keep in mind that the style set will be used if the current map scale is greater
than the From value and less than or equal to the To value. For example, if the
display range is 0 – 20,000, the style set will be used if the current map scale
is between 1 and 20,000. Therefore, when setting up adjacent display ranges,
you should use the same From value as the previous style set’s To value. Do
not set one range to 0 – 20,000 and then set the next range to start at 20,001.
If you want to draw the same data multiple times in different ways to create
the effect of complex line styles, you can specify multiple styles for a single
style set. For details, see “Creating Complex Line Styles with Polylines” on
page 170.
For step-by-step instructions on specifying display ranges, choose Help
Contents, click the Index tab, and look up “display ranges.”
Specifying Map Layer Styles
You can specify different display styles for each layer in your map, such as
new symbols for a point layer or font style for a text layer. Use the Styles area
of the Styles tab in the Map Layer Properties dialog box to specify how a layer
is displayed.
When themes are disabled, the Styles list contains only one display style (a
symbol for point layers, text font for text layers, line style for polyline layers,
or fill style for polygon layers), as shown in the following illustration.
Display Range Styles Used To Draw the Road
0 – 20,000
20,000 – 50,000
50,000 – 100,000
Help Index
map layers
style properties