private async void StartDraw()
{
if (!IsEnable && MapEditor == null && layer == null)
{
return;
}
GraphicsLayer drawLayer = layer; // Fix Bug, change layer during drawing
DrawOptionVm optionVm = null;
foreach (var opt in drawOptions)
{
if (opt.IsChecked)
{
optionVm = opt;
break;
}
}
if (optionVm != null)
{
try
{
var progress = new Progress <GeometryEditStatus>();
var result = await MapEditor.RequestShapeAsync(optionVm.Shape, null, progress);
var graphic = new Graphic
{
Geometry = result,
Symbol = optionVm.Symbol
};
foreach (var item in optionVm.Attributes)
{
graphic.Attributes.Add(item.Key, item.Value);
}
drawLayer.Graphics.Add(graphic);
}
catch (TaskCanceledException)
{
}
catch (Exception ex)
{
Reset();
MessageBox.Show(ex.Message);
}
}
}
public DrawOptionsGroupVm()
{
var polylineSymbol = new SimpleLineSymbol
{
Color = Colors.Red,
Width = 2
};
DrawPolyLine = new DrawOptionVm(DrawShape.Polyline, polylineSymbol);
var contourSymbol = new SimpleLineSymbol
{
Color = Colors.Purple,
Width = 2
};
DrawContour = new DrawOptionVm(DrawShape.Polyline, contourSymbol);
DrawPolyLine.Attributes.Add(Diamond14Attributes.LineType, Diamond14Attributes.LineTypeLine);
DrawContour.Attributes.Add(Diamond14Attributes.LineType, Diamond14Attributes.LineTypeContour);
var polygonSymbol = new SimpleFillSymbol
{
Color = Color.FromArgb(0x66, 0xff, 0, 0)
};
DrawPolygon = new DrawOptionVm(DrawShape.Polygon, polygonSymbol);
var pointSymbol = new SimpleMarkerSymbol
{
Style = SimpleMarkerStyle.Circle
};
DrawPoint = new DrawOptionVm(DrawShape.Point, pointSymbol);
drawOptions.Add(DrawPoint);
drawOptions.Add(DrawPolygon);
drawOptions.Add(DrawPolyLine);
drawOptions.Add(DrawContour);
StartDrawCommand = new DelegateCommand(StartDraw);
StartEditCommand = new DelegateCommand(StartEdit);
DeleteGraphicCommand = new DelegateCommand(DeleteGraphic);
UpdateValueCommand = new DelegateCommand(UpdateValue);
//IsEnabledChangedCommand = new DelegateCommand<bool?>(IsEnabledChanged);
//CompleteCommand = new DelegateCommand(Complete, CanComplete);
//CancelCommand = new DelegateCommand(Cancel, CanCancel);
}
