private void InitializeViewport()
{
if (ActualWidth.IsNanOrZero())
{
return;
}
if (double.IsNaN(Map.Viewport.Resolution)) // only when not set yet
{
if (!_map.Envelope.IsInitialized())
{
return;
}
if (_map.Envelope.GetCentroid() == null)
{
return;
}
if (Math.Abs(_map.Envelope.Width) > Constants.Epsilon)
{
Map.Viewport.Resolution = _map.Envelope.Width / ActualWidth;
}
else
{
// An envelope width of zero can happen when there is no data in the Maps' layers (yet).
// It should be possible to start with an empty map.
Map.Viewport.Resolution = Constants.DefaultResolution;
}
}
if (double.IsNaN(Map.Viewport.Center.X) || double.IsNaN(Map.Viewport.Center.Y)) // only when not set yet
{
if (!_map.Envelope.IsInitialized())
{
return;
}
if (_map.Envelope.GetCentroid() == null)
{
return;
}
Map.Viewport.Center = _map.Envelope.GetCentroid();
}
Map.Viewport.Width = ActualWidth;
Map.Viewport.Height = ActualHeight;
Map.Viewport.RenderResolutionMultiplier = 1.0;
_viewportInitialized = true;
OnViewportInitialize();
Map.ViewChanged(true);
}
public void ZoomToFullEnvelope()
{
if (Map.Envelope == null)
{
return;
}
if (ActualWidth.IsNanOrZero())
{
return;
}
Map.Viewport.Resolution = Math.Max(Map.Envelope.Width / ActualWidth, Map.Envelope.Height / ActualHeight);
Map.Viewport.Center = Map.Envelope.GetCentroid();
}
public void ZoomToFullEnvelope()
{
if (Map.Envelope == null)
{
return;
}
if (ActualWidth.IsNanOrZero())
{
return;
}
viewport.Resolution = Map.Envelope.Width / ActualWidth;
viewport.Center = Map.Envelope.GetCentroid();
}
public void ZoomToFullEnvelope()
{
if (Map.Envelope == null)
{
return;
}
if (ActualWidth.IsNanOrZero())
{
return;
}
Map.Viewport.Resolution = Map.Envelope.Width / ActualWidth;
Map.Viewport.Center = Map.Envelope.Centroid;
OnViewChanged();
}
private void InitializeViewport()
{
if (ActualWidth.IsNanOrZero())
{
return;
}
if (_map == null)
{
return;
}
if (_map.Envelope == null)
{
return;
}
if (_map.Envelope.Width.IsNanOrZero())
{
return;
}
if (_map.Envelope.Height.IsNanOrZero())
{
return;
}
if (_map.Envelope.GetCentroid() == null)
{
return;
}
if (double.IsNaN(Map.Viewport.Resolution))
{
Map.Viewport.Resolution = _map.Envelope.Width / ActualWidth;
}
if (double.IsNaN(Map.Viewport.Center.X) || double.IsNaN(Map.Viewport.Center.Y))
{
Map.Viewport.Center = _map.Envelope.GetCentroid();
}
Map.Viewport.Width = ActualWidth;
Map.Viewport.Height = ActualHeight;
Map.Viewport.RenderResolutionMultiplier = 1.0;
_viewportInitialized = true;
OnViewportInitialize();
Map.ViewChanged(true);
}
private void InitializeViewport()
{
if (ActualWidth.IsNanOrZero())
{
return;
}
if (_map == null)
{
return;
}
if (_map.Envelope == null)
{
return;
}
if (_map.Envelope.Width.IsNanOrZero())
{
return;
}
if (_map.Envelope.Height.IsNanOrZero())
{
return;
}
if (_map.Envelope.GetCentroid() == null)
{
return;
}
if (double.IsNaN(Map.Viewport.Resolution))
{
Map.Viewport.Resolution = _map.Envelope.Width / ActualWidth;
}
if (double.IsNaN(Map.Viewport.Center.X) || double.IsNaN(Map.Viewport.Center.Y))
{
Map.Viewport.Center = _map.Envelope.GetCentroid();
}
_viewportInitialized = true;
}
private void InitializeView()
{
if (ActualWidth.IsNanOrZero())
{
return;
}
if (map == null)
{
return;
}
if (map.Envelope == null)
{
return;
}
if (map.Envelope.Width.IsNanOrZero())
{
return;
}
if (map.Envelope.Height.IsNanOrZero())
{
return;
}
if (map.Envelope.GetCentroid() == null)
{
return;
}
if ((viewport.CenterX > 0) && (viewport.CenterY > 0) && (viewport.Resolution > 0))
{
viewInitialized = true; //view was already initialized
return;
}
viewport.Center = map.Envelope.GetCentroid();
viewport.Resolution = map.Envelope.Width / ActualWidth;
viewInitialized = true;
}