Using mixed tiled and dynamic basemaps and controlling zoom LODs

MichaelHanna — Mon, 05 Nov 2012 14:00:33 GMT

Having some issues with being able to zoom further than the default LODs defined for the ESRI Streets and Aerials basemaps. I understand that I can add in additional LOD levels and have also found information on being able to define for "secondary" basemaps the display levels.

My issue seems to be that despite setting these based on the information I uncovered, the webservice is locking up when I zoom in beyond the initial set of LODs for the ESRI mapping.

I also want to add that I am not able to do any custom programming - any solution (if there are any) must be handled within the config.xml.

Here is the information from my config.xml I am using:

<map initialextent="-9385000 4681000 -7719000 5170000" top="0">

<lods>
   <lod scale="591657527.591555" resolution="156543.03392800014"/>
   <lod scale="295828763.79577702" resolution="78271.516963999937"/>
   <lod scale="147914381.89788899" resolution="39135.758482000092"/>
   <lod scale="73957190.948944002" resolution="19567.879240999919"/>
   <lod scale="36978595.474472001" resolution="9783.9396204999593"/>
   <lod scale="18489297.737236001" resolution="4891.9698102499797"/>
   <lod scale="9244648.8686180003" resolution="2445.9849051249898"/>
   <lod scale="4622324.4343090001" resolution="1222.9924525624949"/>
   <lod scale="2311162.2171550002" resolution="611.49622628137968"/>
   <lod scale="1155581.108577" resolution="305.74811314055756"/>
   <lod scale="577790.55428899999" resolution="152.87405657041106"/>
   <lod scale="288895.27714399999" resolution="76.437028285073239"/>
   <lod scale="144447.638572" resolution="38.21851414253662"/>
   <lod scale="72223.819285999998" resolution="19.10925707126831"/>
   <lod scale="36111.909642999999" resolution="9.5546285356341549"/>
   <lod scale="18055.954822" resolution="4.7773142679493699"/>
   <lod scale="9027.9774109999998" resolution="2.3886571339746849"/>
   <lod scale="4513.9887049999998" resolution="1.1943285668550503"/>
   <lod scale="2256.994353" resolution="0.59716428355981721"/>
   <lod scale="1128.4971760000001" resolution="0.29858214164761665"/>    
   <lod scale="564.248588" resolution="0.149291070823808"/>
   <lod scale="282.124294" resolution="0.074645535411904"/>
   <lod scale="141.062147" resolution="0.0.037322767705952"/>
   <lod scale="70.5310735" resolution="0.018661383852976"/>
   <lod scale="35.26553675" resolution="0.009330691926488"/>
   <lod scale="17.632768375" resolution="0.004665345963244"/>
    <lod scale="8.8163841875" resolution="0.002332672981622"/> -->
</lods>

         <basemaps>
            <layer label="StreetsBase" type="dynamic" visible="false"
                   url="http://gisweb/ArcGIS/rest/services/StreetBaseMap/MapServer"
       displaylevels="20,21,22,23,24,25,26"/>
   <layer label="Streets" type="tiled" visible="true"
                   url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"
       displaylevels="0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19"/>
            <layer label="Aerial" type="tiled" visible="false"
                   url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer"/> -->

Any help on straighening this issue out would be appreciated. I will have no problems if someone tells me I am simply doing something wrong! 🙂

Thanks,
Michael Hanna, GISP
GIS Manager, Middlesex Water Company

Just to add in an additional item - the "locking" is occurring when I attempt to go past the LOD "282.124294". Beyond that the screen blanks of all data (both dynamic and basemap) and I am no longer able to change the navigation (zoom in/zoom out). When I attempt to drag the zoom slider past the 282 LOD, it simply reset to 282.

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Using mixed tiled and dynamic basemaps and controlling zoom LODs