/// <summary>
/// Gets the source image to display in the dynamic layer. Override this to generate
/// or modify images.
/// </summary>
/// <param name="properties">The image export properties.</param>
/// <param name="onComplete">The method to call when the image is ready.</param>
/// <seealso cref="ESRI.ArcGIS.Client.DynamicLayer.OnProgress"/>
protected override void GetSource(DynamicLayer.ImageParameters properties, DynamicLayer.OnImageComplete onComplete)
{
if (!IsInitialized)
{
onComplete(null, null);
return;
}
Envelope extent = properties.Extent;
var ex121 = AppStateSettings.Instance.ViewDef.MapControl.Extent;
var vp = new MgrsViewport(Map); /* Calculate visisble UTM boxes */
LastMetersPerPixel = vp.MetersPerPixel;
if (!Cfg.IsEnabled)
{
onComplete(null, null);
return;
}
var draw = new DrawMgrsRaster(Cfg, vp);
int width = properties.Width;
int height = properties.Height;
var img1 = GenerateImage1(width, height, 96, dc => draw.Render(dc));
onComplete(Convert(img1), new ImageResult(extent));
}
protected override void OnRender(DrawingContext pDrawingContext)
{
base.OnRender(pDrawingContext);
if ((!mIsInitialized) && (AppStateSettings.Instance.ViewDef.MapControl != null))
{
AppStateSettings.Instance.ViewDef.MapControl.ExtentChanged += (sender, e) => this.InvalidateVisual();
mIsInitialized = true;
}
if (!mIsInitialized) return;
//if (!(Keyboard.IsKeyDown(Key.LeftAlt) || Keyboard.IsKeyDown(Key.RightAlt))) return;
var vp = new MgrsViewport(AppStateSettings.Instance.ViewDef.MapControl); /* Calculate visisble UTM boxes */
LastMetersPerPixel = vp.MetersPerPixel;
if (!Cfg.IsEnabled) return;
var draw = new DrawMgrsRaster(Cfg, vp);
draw.Render(pDrawingContext);
}
public DrawMgrsRaster(MgrsConfig pConfig, MgrsViewport pMgrsGrid)
{
Viewport = pMgrsGrid;
Cfg = pConfig;
}