I am doing some custom drawing in the pagelayout view. In that connection, I need to find out the coordinates (or extents) of the map frame that in rendered in the pagelayout view in screen coordinates. Is there a way to find that out?
I also need to get at this information for a project I'm working on.
Here is my first stab at it as a C# Add-In, just to get the basic concept working. It will likely need some refinement, but this should help anyone else in the same boat get started:
// Get the position and size of the focus map in the layout.
IActiveView activeView = ArcMap.Document.ActiveView;
// Make sure ArcMap is in layout view
if (!(activeView is IPageLayout))
{
MessageBox.Show("Please switch to layout view.");
return;
}
// Look at the page layout as a container and loop through all the elements.
IGraphicsContainer graphicsContainer = activeView as IGraphicsContainer;
graphicsContainer.Reset();
IElement element = null;
while ((element = graphicsContainer.Next()) != null)
{
// Only work with map frames
if (element is IMapFrame)
{
// Get the map frame's map
IMap map = (element as IMapFrame).Map;
// Only work with the focus map frame in layout
if (map.Equals(ArcMap.Document.FocusMap))
{
// Display the map frame's layout position/size
// which is in reference to lower left corner.
IGeometry geometry = element.Geometry;
MessageBox.Show(
"Left: " + geometry.Envelope.XMin.ToString() +
"\nTop: " + geometry.Envelope.YMax.ToString() +
"\nRight: " + geometry.Envelope.XMax.ToString() +
"\nBottom: " + geometry.Envelope.YMin.ToString());
}
}
}
