//private void ApplyLayerTransperancyBasedOfGeometryType(GraphicsLayer glayer, GeometryType geometryType)
//{
// if (glayer != null)
// {
// switch (geometryType)
// {
// case GeometryType.Point:
// glayer.Opacity = 1.0;
// break;
// case GeometryType.Polyline:
// glayer.Opacity = 1.0;
// break;
// case GeometryType.Polygon:
// glayer.Opacity = 0.5; // for polygons, we make it semi-transparent
// break;
// }
// }
//}
private void ApplyDefaultRenderer(GraphicsLayer gLayer, GeometryType geometryType)
{
if (gLayer == null && Symbology == null)
{
return;
}
SymbolDescription desc = null;
if (geometryType == GeometryType.MultiPoint) // Treat MultiPoint as point for looking up default symbol
{
geometryType = GeometryType.Point;
}
if (Symbology.DefaultSymbols.TryGetValue(geometryType, out desc))
{
if (desc != null && desc.Symbol != null)
{
Symbol symbol = desc.Symbol.CloneSymbol();
if (symbol != null)
{
gLayer.ChangeRenderer(symbol);
}
}
}
}
internal static void ChangeRenderer(this GraphicsLayer layer, Symbol symbol)
{
if (layer != null)
{
layer.ChangeRenderer(new SimpleRenderer()
{
Symbol = symbol
});
}
}
private static void assignNewRendererToLayer(GraphicsLayer graphicsLayer, IRenderer newRenderer)
{
if (graphicsLayer == null)
{
return;
}
if (newRenderer == null)
{
newRenderer = graphicsLayer.CreateDefaultRenderer();
}
// Assign the renderer to the layer (potentially need to clear out FeatureSymbol)
graphicsLayer.ChangeRenderer(newRenderer);
}
void defaultSymbolConfig_DefaultSymbolModified(object sender, SymbolSelectedEventArgs e)
{
GraphicsLayer graphicsLayer = Layer as GraphicsLayer;
if (graphicsLayer == null)
{
return;
}
graphicsLayer.ChangeRenderer(e.Symbol);
refreshLayer();
if (SymbolConfigControl != null)
{
SymbolConfigControl.Symbol = e.Symbol;
}
}
public static void ChangeSymbolOnDefaultRenderer(this GraphicsLayer layer, string symbolJson)
{
if (layer == null)
{
return;
}
if (!string.IsNullOrEmpty(symbolJson))
{
Symbol symbol = null;
try
{
symbol = SymbolJsonHelper.SymbolFromJson(symbolJson);
}
catch (Exception ex)
{
Logger.Instance.LogError(ex);
}
if (symbol != null)
{
layer.ChangeRenderer(symbol);
}
}
}
//private void ApplyLayerTransperancyBasedOfGeometryType(GraphicsLayer glayer, GeometryType geometryType)
//{
// if (glayer != null)
// {
// switch (geometryType)
// {
// case GeometryType.Point:
// glayer.Opacity = 1.0;
// break;
// case GeometryType.Polyline:
// glayer.Opacity = 1.0;
// break;
// case GeometryType.Polygon:
// glayer.Opacity = 0.5; // for polygons, we make it semi-transparent
// break;
// }
// }
//}
private void ApplyDefaultRenderer(GraphicsLayer gLayer, GeometryType geometryType)
{
if (gLayer == null && Symbology == null)
return;
SymbolDescription desc = null;
if (geometryType == GeometryType.MultiPoint) // Treat MultiPoint as point for looking up default symbol
geometryType = GeometryType.Point;
if (Symbology.DefaultSymbols.TryGetValue(geometryType, out desc))
{
if (desc != null && desc.Symbol != null)
{
Symbol symbol = desc.Symbol.CloneSymbol();
if (symbol != null)
gLayer.ChangeRenderer(symbol);
}
}
}
private static void assignNewRendererToLayer(GraphicsLayer graphicsLayer, IRenderer newRenderer)
{
if (graphicsLayer == null)
return;
if (newRenderer == null)
{
newRenderer = graphicsLayer.CreateDefaultRenderer();
}
// Assign the renderer to the layer (potentially need to clear out FeatureSymbol)
graphicsLayer.ChangeRenderer(newRenderer);
}
void RendererType_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (_ignoreRendererTypeChangedEvent)
{
return;
}
GraphicsLayer graphicsLayer = Layer as GraphicsLayer;
if (graphicsLayer == null)
{
return;
}
string rendererType = RendererType.SelectedItem.ToString();
if (rendererType == LocalizableStrings.SingleSymbol)
{
rendererType = Constants.SimpleRenderer;
}
else if (rendererType == LocalizableStrings.ClassBreaks)
{
rendererType = Constants.ClassBreaksRenderer;
}
else if (rendererType == LocalizableStrings.UniqueValues)
{
rendererType = Constants.UniqueValueRenderer;
}
if (AttributeName != null)
{
AttributeName.Visibility = Constants.ClassBreaksRenderer.Equals(rendererType) || Constants.UniqueValueRenderer.Equals(rendererType)
? Visibility.Visible : Visibility.Collapsed;
buildAttributeNamesList(graphicsLayer, rendererType);
}
// 1. Find the attribute field to use as renderer
FieldInfo attributeField = null;
// 2. Check if the dropdown had a selected one
if (AttributeName.SelectedItem != null)
{
attributeField = AttributeName.SelectedItem as FieldInfo;
}
// 3. If none selected, Use first one in list
if (attributeField == null || string.IsNullOrEmpty(attributeField.Name))
{
// No attribute selected
if (AttributeName.Items.Count > 0)
{
_ignoreAttributeChangedEvent = true;
AttributeName.SelectedIndex = 0; // Select the first one
_ignoreAttributeChangedEvent = false;
attributeField = AttributeName.Items[0] as FieldInfo;
}
}
FieldInfo newAttributeField = graphicsLayer.ChangeRenderer(rendererType, attributeField);
OnLayerRendererChanged(new LayerRendererChangedEventArgs()
{
RendererAttributeField = newAttributeField,
RendererType = rendererType,
});
}
