Zooming to just beyond full extent

JackCibor

In my silverlight apps i am trying to have the map zoom to the results of queries or GP tasks (graphics layers) with the following C# code:

MyMap.ZoomTo(graphicsLayer.FullExtent)

When i do so, the furthest outlying feature is right on the edge of the map. So I want to zoom to something just greater than the full extent so there is a little space between my furthest out feature and the edge of the map.

So I came up with something like this:

                Envelope myExtent = new Envelope();
                myExtent.XMax = ((graphicsLayer.FullExtent.XMax) + 0.02);
                myExtent.XMin = ((graphicsLayer.FullExtent.XMin) - 0.02);
                myExtent.YMax = ((graphicsLayer.FullExtent.YMax) + 0.02);
                myExtent.YMin = ((graphicsLayer.FullExtent.YMin) - 0.02);
                //MyMap.ZoomTo(graphicsLayer.FullExtent)
                MyMap.ZoomTo(myExtent);

But this only works for zooming in a narrow range of scales. If scales vary greatly this kind of approach does not work well.


Have you seen any examples of a better way to do this??

STharshini

In my silverlight apps i am trying to have the map zoom to the results of queries or GP tasks (graphics layers) with the following C# code:

MyMap.ZoomTo(graphicsLayer.FullExtent)

When i do so, the furthest outlying feature is right on the edge of the map. So I want to zoom to something just greater than the full extent so there is a little space between my furthest out feature and the edge of the map.

So I came up with something like this:

                Envelope myExtent = new Envelope();
                myExtent.XMax = ((graphicsLayer.FullExtent.XMax) + 0.02);
                myExtent.XMin = ((graphicsLayer.FullExtent.XMin) - 0.02);
                myExtent.YMax = ((graphicsLayer.FullExtent.YMax) + 0.02);
                myExtent.YMin = ((graphicsLayer.FullExtent.YMin) - 0.02);
                //MyMap.ZoomTo(graphicsLayer.FullExtent)
                MyMap.ZoomTo(myExtent);

But this only works for zooming in a narrow range of scales. If scales vary greatly this kind of approach does not work well.


Have you seen any examples of a better way to do this??

Have you tried :myMap.Zoom();Please check the below link

http://help.arcgis.com/en/webapi/silverlight/apiref/ESRI.ArcGIS.Client~ESRI.ArcGIS.Client.Map~Zoom.html

http://help.arcgis.com/en/webapi/silverlight/apiref/ESRI.ArcGIS.Client~ESRI.ArcGIS.Client.Map~ZoomFactor.html