Downloads Components

Using the virtual layer component.

The virtual layer component makes it easy to play with layers inside an ArcIMS service. You can use it for the following tasks.

• Turn off/on layers during startup
• Change symbols and add where clauses
• Create joints to tables
• Add layers not specified in the AXL-config file.

In the following example we will show how you initialy turn off a layer and how you put a where clause on top of a layer during load of a service.

Turn off SDEEPER_points.

1. Drag a virtual layer component onto the stage.
2. Give the component the instance name 'SDEEPER_points'. The same as the layerid inside the AXL-file.
3. Open the component inspector (Alt-F7)
4. set visible property to false
5. set target_instance_name to 'my_map', (instance name of the map component)

Query SDEEPER and only show groupid 4, show the points into black circles.

1. Drag a virtual layer component onto the stage.
2. Give the component the instance name 'SDEEPER4_points'.
3. Open the component inspector (Alt-F7)
4. set target_instance_name to 'my_map', (instance name of the map component)
5. set the "where" property to "groupid = 4"
6. set the "fromlayer" property to "SDEEPER_points"
7. double click on the "marker symbol" property
8. click on the plus sign.
9. set the "width" property to 4

Screenshot of the the macromedia flash design environment. The globe sign with a big plus is the virtual layer component.

The following show the result.

Download the example here