private void _ViewModel_OnUpdateImage(ImageDisplayParameters parameter)
{
if (d3dImg.IsFrontBufferAvailable)
{
d3dImg.Lock();
_ImageWrapper.Draw(parameter);
d3dImg.AddDirtyRect(new Int32Rect(0, 0, d3dImg.PixelWidth, d3dImg.PixelHeight));
d3dImg.Unlock();
}
}
/// <summary>
/// Performs an identify operation on a map service.
/// </summary>
/// <param name="geometry">The geometry to identify on.</param>
/// <param name="tolerance">The distance in screen pixels from the specified geometry within which the identify should be performed.</param>
/// <param name="mapExtent">The extent or bounding box of the map currently being viewed.</param>
/// <param name="imageDisplay">The screen image display parameters (width, height and DPI) of the map being currently viewed.</param>
/// <param name="callback">The callback function used to retrieve the results.</param>
/// <param name="identifyoption">How to perform the identify.</param>
/// <param name="layers">The layers to perform the identify operation on.</param>
/// <param name="returnGeometry">If true, the resultset will include the geometries associated with each result.</param>
/// <param name="layerDefs">Allows you to filter the features of individual layers in the exported map by specifying definition expressions for those layers.</param>
public void IdentifyAsync(
Geometry geometry,
int tolerance,
Geometry mapExtent,
ImageDisplayParameters imageDisplay,
System.Action <IdentifyResultCollection> callback,
IdentifyLayersOption identifyoption = IdentifyLayersOption.All,
int[] layers = null,
bool returnGeometry = true,
System.Collections.Generic.IDictionary <LayerTable, string> layerDefs = null)
{
throw new System.NotImplementedException();
}
/// <summary>
/// Performs an identify operation on a map service.
/// </summary>
/// <param name="geometry">The geometry to identify on.</param>
/// <param name="tolerance">The distance in screen pixels from the specified geometry within which the identify should be performed.</param>
/// <param name="mapExtent">The extent or bounding box of the map currently being viewed.</param>
/// <param name="imageDisplay">The screen image display parameters (width, height and DPI) of the map being currently viewed.</param>
/// <param name="identifyoption">How to perform the identify.</param>
/// <param name="layers">The layers to perform the identify operation on.</param>
/// <param name="returnGeometry">If true, the resultset will include the geometries associated with each result.</param>
/// <param name="layerDefs">Allows you to filter the features of individual layers in the exported map by specifying definition expressions for those layers.</param>
/// <returns>
/// A collection of <see cref="T:Geocrest.Model.ArcGIS.Tasks.IdentifyResult">IdentifyResult</see>s.
/// </returns>
public IdentifyResultCollection Identify(
Geometry geometry,
int tolerance,
Geometry mapExtent,
ImageDisplayParameters imageDisplay,
IdentifyLayersOption identifyoption = IdentifyLayersOption.All,
int[] layers = null,
bool returnGeometry = true,
System.Collections.Generic.IDictionary <LayerTable, string> layerDefs = null)
{
try
{
ValidateGeometry(geometry);
ValidateGeometry(mapExtent);
}
catch (ArgumentNullException ex)
{
Throw.InvalidOperation("",
x => new InvalidOperationException("Geometry object is invalid.", ex));
}
IDictionary <string, object> inputs = new Dictionary <string, object>()
{
{ "geometryType", geometry.GeometryType },
{ "geometry", geometry },
{ "sr", geometry.SpatialReference.WKID },
{ "layers", GetLayers(identifyoption, layers) },
{ "imageDisplay", string.Format("{0},{1},{2}", imageDisplay.Width.ToString(),
imageDisplay.Height.ToString(), imageDisplay.DPI.ToString()) },
{ "mapExtent", string.Format("{0},{1},{2},{3}", mapExtent.XMin.Value.ToString(),
mapExtent.YMin.Value.ToString(), mapExtent.XMax.Value.ToString(), mapExtent.YMax.Value.ToString()) },
{ "returnGeometry", returnGeometry.ToString() },
{ "layerDefs", GetLayerDefs(layerDefs) },
{ "tolerance", tolerance }
};
Uri endpoint = GetUrl("identify", inputs);
return(Geocrest.Model.RestHelper.HydrateObject <IdentifyResultCollection>(endpoint.ToString()));
}