private void Activate(Point2D firstPoint)
{
DrawLayer = new ElementsLayer();
if (Map.Layers == null)
{
return;
}
Map.Layers.Add(DrawLayer);
polyline = new PolylineElement();
#region 所有风格的控制
polyline.Stroke = Stroke;
polyline.StrokeThickness = StrokeThickness;
polyline.StrokeMiterLimit = StrokeMiterLimit;
polyline.StrokeDashOffset = StrokeDashOffset;
polyline.StrokeDashArray = StrokeDashArray;
polyline.StrokeDashCap = StrokeDashCap;
polyline.StrokeEndLineCap = StrokeEndLineCap;
polyline.StrokeLineJoin = StrokeLineJoin;
polyline.StrokeStartLineCap = StrokeStartLineCap;
polyline.Opacity = Opacity;
polyline.Fill = Fill;
polyline.FillRule = FillRule;
#endregion
points = new Point2DCollection();
polyline.Point2Ds = points;
points.Add(firstPoint);
points.Add(firstPoint);
DrawLayer.Children.Add(polyline);
isDrawing = true;
isActivated = true;
}
/// <summary>${ui_action_MapAction_method_deactivate_D}</summary>
public override void Deactivate()
{
isActivated = false;
isDrawing = false;
polyline = null;
points = null;
if (DrawLayer != null)
{
DrawLayer.Children.Clear();
}
if (Map != null && Map.Layers != null)
{
Map.Layers.Remove(DrawLayer);
}
}
private void endDraw(bool isDblClick = false, bool isCancel = false)
{
if (points != null)
{
if (isDblClick)
{
points.RemoveAt(points.Count - 1);
}
PolylineElement pLine = new PolylineElement()
{
Point2Ds = this.points.Clone(),
#region 所有风格的控制
Stroke = this.Stroke,
StrokeThickness = this.StrokeThickness,
StrokeMiterLimit = this.StrokeMiterLimit,
StrokeDashOffset = this.StrokeDashOffset,
StrokeDashArray = this.StrokeDashArray,
StrokeDashCap = this.StrokeDashCap,
StrokeEndLineCap = this.StrokeEndLineCap,
StrokeLineJoin = this.StrokeLineJoin,
StrokeStartLineCap = this.StrokeStartLineCap,
Opacity = this.Opacity,
Fill = this.Fill,
FillRule = this.FillRule
#endregion
};
GeoLine geoLine = new GeoLine();//构造返回的Geometry
geoLine.Parts.Add(points);
DrawEventArgs args = new DrawEventArgs
{
DrawName = Name,
Element = pLine, //Element = this.polyline //直接返回是固定像素的
Geometry = geoLine,
Canceled = isCancel
};
Deactivate();
OnDrawCompleted(args);
}
}