public void SimplifyClick(Map map, GeoCollection <object> args)
{
if (null == areaBaseShape)
{
areaBaseShape = ((InMemoryFeatureLayer)map.StaticOverlay.Layers["SimplificationLayer"]).InternalFeatures[0].GetShape() as AreaBaseShape;
}
string toleranceString = args[0] as string;
string simplificationTypeString = args[1] as string;
InMemoryFeatureLayer simplificationLayer = (InMemoryFeatureLayer)map.StaticOverlay.Layers["SimplificationLayer"];
double tolerance = Convert.ToDouble(toleranceString, CultureInfo.InvariantCulture);
SimplificationType simplificationType = SimplificationType.DouglasPeucker;
switch (simplificationTypeString)
{
case "TopologyPreserving":
simplificationType = SimplificationType.TopologyPreserving;
break;
case "DouglasPeucker":
simplificationType = SimplificationType.DouglasPeucker;
break;
}
MultipolygonShape multipolygonShape = areaBaseShape.Simplify(tolerance, simplificationType);
simplificationLayer.InternalFeatures.Clear();
simplificationLayer.InternalFeatures.Add(new Feature(multipolygonShape));
}
private void btnSimplify_Click(object sender, RoutedEventArgs e)
{
InMemoryFeatureLayer simplificationLayer = (InMemoryFeatureLayer)mapView.FindFeatureLayer("SimplificationLayer");
double tolerance = Convert.ToDouble(cmbTolerance.SelectedItem.ToString().Split(':')[1], CultureInfo.InvariantCulture);
SimplificationType simplificationType = (SimplificationType)cmbSimplificationType.SelectedIndex;
MultipolygonShape multipolygonShape = areaBaseShape.Simplify(tolerance, simplificationType);
simplificationLayer.InternalFeatures.Clear();
simplificationLayer.InternalFeatures.Add(new Feature(multipolygonShape));
mapView.Overlays["SimplificationOverlay"].Refresh();
}
private void btnSimplify_Click(object sender, EventArgs e)
{
InMemoryFeatureLayer simplificationLayer = (InMemoryFeatureLayer)winformsMap1.FindFeatureLayer("SimplificationLayer");
double tolerance = Convert.ToDouble(cmbTolerance.Text, CultureInfo.InvariantCulture);
SimplificationType simplificationType = (SimplificationType)cmbSimplificationType.SelectedIndex;
MultipolygonShape multipolygonShape = areaBaseShape.Simplify(tolerance, simplificationType);
simplificationLayer.InternalFeatures.Clear();
simplificationLayer.InternalFeatures.Add(new Feature(multipolygonShape));
winformsMap1.Refresh(winformsMap1.Overlays["SimplificationOverlay"]);
}
private void simplifyShape_Click(object sender, EventArgs e)
{
LayerOverlay layerOverlay = (LayerOverlay)mapView.Overlays["layerOverlay"];
ShapeFileFeatureLayer cityLimits = (ShapeFileFeatureLayer)layerOverlay.Layers["cityLimits"];
InMemoryFeatureLayer simplifyLayer = (InMemoryFeatureLayer)layerOverlay.Layers["simplifyLayer"];
// Query the cityLimits layer to get all the features
cityLimits.Open();
var features = cityLimits.QueryTools.GetAllFeatures(ReturningColumnsType.NoColumns);
cityLimits.Close();
// Simplify the first feature using the Douglas Peucker method
var simplify = AreaBaseShape.Simplify(features[0].GetShape() as AreaBaseShape, Convert.ToInt32(tolerance.Text), SimplificationType.DouglasPeucker);
// Add the simplified shape into simplifyLayer to display the result.
// If this were to be a permanent change to the cityLimits FeatureSource, you would modify the underlying data using BeginTransaction and CommitTransaction instead.
simplifyLayer.InternalFeatures.Clear();
simplifyLayer.InternalFeatures.Add(new Feature(simplify));
// Redraw the layerOverlay to see the simplified feature on the map
layerOverlay.Refresh();
}
