Overview w/ an Operation Layer

[ShaningYu]

In the OverviewWidget, how to add an operation layer above the basemap?  Thanks.

[RobertScheitlin__GISP]

Shanning,

   So in the OTB overview widget is is only possible to manually specify on layer and it sounds like you have done that and set it to a particular basemap. Well in FV 2.5 I mad changes to the code o allow more than one layer to be manually be specified and attached is that code for the OverviewMapComponent.mxml:

[ShaningYu]

I added the dynamic one but got a blank Overview (the original Imergery was gone). What is wrong I did? Thanks.
<configuration>
<initialstate>closed</initialstate>
<layer type="tiled"
url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer">
</layer>
<layer type="dynamic"
url="http://10.74.44.31:6080/arcgis/rest/services/Butler/Butler_1C2B/MapServer" visiblelayers="4" >
</layer>
</configuration>

[RobertScheitlin__GISP · Accepted solution]

Shanning,

   Are you using this in Flex Viewer 2.5 or 3.0? Also just to note the visiblelayers attribute is not used in the current code base when you manually specify a layer.

[ShaningYu]

Thanks.  It works for V2.5.  I will try to use it on V3.0 later on.

[RobertScheitlin__GISP]

Shanning,

  I just tested and the code works in 2.5 and 3.0. Here is an example of the xml that works:

<?xml version="1.0"?>
<configuration>
    <!-- possible values for initialstate: open or closed (default) -->
    <initialstate>closed</initialstate>
    <!-- by default it will use the same basemap as current main map,
         you can hardcode as below if you wish -->
    <layer type="tiled"
            url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"/>
    <layer type="dynamic"
            url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Earthquakes/Since_1970/MapServer" />
   
</configuration>

<!--
    See Overview Map widget tag reference at
    http://links.esri.com/overviewmapwidget
-->

[ShaningYu]

Many thanks to Robert.