public override void Run()
{
ILegendItem selectedItem = (GIS.FrameWork.Application.App.Legend as GIS.Common.Dialogs.Legend).SelectedLegendMenuItem;
if (selectedItem != null && selectedItem is MapFrame)
{
//get max extent from maplayercollection
IMapLayerCollection _layers = GIS.FrameWork.Application.App.Map.Layers;
Extent ext = null;
IList <ILayer> layers = _layers.Cast <ILayer>().ToList();
if (layers != null)
{
foreach (ILayer layer in layers)
{
if (layer.Extent != null && !layer.Extent.IsEmpty()) // changed by jany (2015-07-17) don't add extents of empty layers, because they cause a wrong overall extent
{
if (ext == null)
{
ext = (Extent)layer.Extent.Clone();
}
else
{
ext.ExpandToInclude(layer.Extent);
}
}
}
}
//calculate expands
double eps = 1e-7;
var maxExt = ext.Width < eps || ext.Height < eps
? new Extent(ext.MinX - eps, ext.MinY - eps, ext.MaxX + eps, ext.MaxY + eps)
: ext;
maxExt.ExpandBy(maxExt.Width / 10, maxExt.Height / 10);
GIS.FrameWork.Application.App.Map.ViewExtents = maxExt;
}
}
/// <summary>
/// Gets the layers cast as ILayer without any information about the actual drawing methods.
/// This is useful for handling methods that my come from various types of maps.
/// </summary>
/// <returns>An enumerable collection of ILayer</returns>
public override IList <ILayer> GetLayers()
{
return(_layers.Cast <ILayer>().ToList());
}
