Latest Contributions by RyanCoodey

Ok, I know a am pushing the limits here with 50,000 points, but what we would like almost works... These 50,000 points spread across different areas in California, but some points are pretty close together, within feet.  So the initial extent of the map is zoomed out to roughly the California area, the AGS service is set to return up to 75,000 points, and the FeatureLayer is setup as this: <esri:FeatureLayer ID="Well" Url="http://bkgis02/ArcGIS/rest/services/Global/Well-FeatureLayer/MapServer/0" Mode="OnDemand" OnDemandCacheSize="75000" OutFields="WELL_NME,WELL_API_NBR">      <esri:FeatureLayer.MapTip>           ...          Since it is loading all these points initially, I figured I might as well cache them all... it takes about 10 seconds to load all the points and create the initial cluster (I give the user a progress bar).  First question, is this a bad idea?  I am ok with this one time initial wait... Once loaded, the cluster works good, as I zoom in and pan around it responds pretty quickly... But since some of these points are pretty close, when the extent gets pretty far in, I would like to drop the cluster.  I have tried this in two ways: Option 1:         void Map_ExtentChanged(Object sender, ExtentEventArgs e)         {             FeatureLayer featureLayer = ((FeatureLayer)Map.Layers[7]);             if (Map.Resolution > 2)             {                 if (featureLayer.Clusterer == null)                     featureLayer.Clusterer = flareClusterer;             }             else                 featureLayer.Clusterer = null;         } Option 2:         void Map_ExtentChanged(object sender, ExtentEventArgs e)         {             if (Map.Resolution > 3)                 Clusterer.Radius = ClusterRadius;             else                 Clusterer.Radius = 1; //Radius 0 doesn't work         } I like option 1 the best and it works really good except for one issue, which option 2 has this same issue too.  Zooming in works great, panning works great, but zooming out causes the application to hang.  I think the problem lies that when zooming out, the Map is now trying to render thousands of feature points, and it is doing this before the cluster has been set... Any ideas?  Am I missing something simple here?  A great feature enhancement would be to add a MinimumResolution to Clusters (I might add this in the beta community)... Also, I tried using ExtentChanging instead of ExtentChanged... and this does fix the above issue, but it is causing any panning and zooming to lag too much then... *EDIT* I tweaked the code a bit to make this more efficient, but still seems like overkill Thanks a lot for any help!!! *EDIT* Also, Another issue... while the cluster refreshes real fast, and so do the ESRI imagery tiled layers, the maps progress bar seems to hang... and so does the refreshing of other ArcGISDynamicMapServiceLayers (mostly when zooming out) ... View more

In the spirit of testing our current web maps with the 2.2 beta, I am also looking into moving from using WGS_1984 to WGS_1984_Web_Mercator_Auxiliary_Sphere, since this seems to be the way things are going (and we want to use ESRI's latest imagery). After pulling my hair for a bit trying to figure out why the distances given by the MeasureAction were about 20% larger than they should be, I found this article: http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2010/03/05/Measuring-distances-and-areas-when-your-map-uses-the-Mercator-projection.aspx Sooo, I don't know what to do now... any guidance would be great: - I don't see any way to tell the MeasureAction to work in a different coordinate system...  - What good is the MeasureAction if it there is no way to get proper values from it?  Am I missing something simple? Or is it a bug? Or should I submit a feature enhancement? - If I keep the map in WGS_1984, and bring in a Web_Mercator service, it doesn't even show up... so no using the current imagery that way. - All our maps and data are in California, so I need it to be accurate within that area. I am hoping I am just missing something simple here... but any helping getting us moved to Web Mercator would be great!  Thanks a lot! ... View more

So I have been using the ESRI_Imagery_World_2D as our background layer for our web maps... I see that this service is now in Extended support so I was going to switch to the World_Imagery service (and WGS 84 Web Mercator).  But when I zoom in too far I get tiles that say "Map data not yet available"... is there a way to not show these and still zoom in on the layer?  Bringing this same service into ArcMap I do not see these not available tiles... sure it gets blurry, but I prefer that over nothing. Also, a side question: what is the difference between server.arcgisonline.com and services.arcgisonline.com?  Are they pointing to the same server? Thanks a lot! ... View more