private static void AddFluid(DrawingMapLayer animationLayer, TongJi.Gis.Display.IDataFluidTheme theme, TongJi.Gis.IFeature f)
{
var poly = new TongJi.Geometry.Polyline(f.GeoData);
double length = poly.Length;
if (length < 10)
{
return;
}
// 生成PathGeometry
var points = poly.Points.Select(p => new Point(p.x, p.y)).ToList();
PathGeometry geometry = new PathGeometry();
PathFigure figure = new PathFigure {
StartPoint = points.First()
};
PolyLineSegment segment = new PolyLineSegment(points, true);
figure.Segments.Add(segment);
geometry.Figures.Add(figure);
// 读取参数
double velocity = theme.GetVelocity(f);
double time = length / velocity;
double space = 1 / theme.GetDensity(f);
int spotCount = (int)(length / space) + 1;
var color = theme.GetColor(f);
// 应用动画
for (int i = 0; i < spotCount; i++)
{
PointAnimationUsingPath paup = new PointAnimationUsingPath();
paup.PathGeometry = geometry;
paup.Duration = new Duration(new TimeSpan(0, 0, 0, 0, (int)(time * 1000)));
paup.RepeatBehavior = RepeatBehavior.Forever;
paup.BeginTime = new TimeSpan(0, 0, 0, 0, (int)(time / spotCount * i * 1000));
ColorAnimation ca = new ColorAnimation(color.Item1, color.Item2, new Duration(new TimeSpan(0, 0, 0, 0, (int)(time * 1000))));
ca.RepeatBehavior = RepeatBehavior.Forever;
ca.BeginTime = new TimeSpan(0, 0, 0, 0, (int)(time / spotCount * i * 1000));
double radius = theme.GetDiameter(f) / 2;
var fill = new SolidColorBrush(color.Item1);
EllipseGeometry spot = new EllipseGeometry(new Point(), radius, radius);
GeometryDrawing spotDrawing = new GeometryDrawing(fill, null, spot);
animationLayer.AddOverlayChildren(spotDrawing);
spot.BeginAnimation(EllipseGeometry.CenterProperty, paup);
fill.BeginAnimation(SolidColorBrush.ColorProperty, ca);
}
}
private static void AddPump(DrawingMapLayer animationLayer, Point pos, Brush stroke, Brush fill, double size, double strokeWidth, double pumpSize, double periord)
{
EllipseGeometry geometry = new EllipseGeometry(pos, size, size);
GeometryDrawing drawing = new GeometryDrawing(fill, new Pen(stroke, strokeWidth), geometry);
//var mLayer = MapControl.Current.Layers.First(x => x.LayerData.Name == "城镇") as DrawingMapLayer;
animationLayer.AddOverlayChildren(drawing);
DoubleAnimationUsingKeyFrames animation = new DoubleAnimationUsingKeyFrames();
animation.Duration = new Duration(TimeSpan.FromMilliseconds(periord));
animation.RepeatBehavior = RepeatBehavior.Forever;
animation.KeyFrames.Add(new LinearDoubleKeyFrame(size, KeyTime.FromPercent(0)));
animation.KeyFrames.Add(new LinearDoubleKeyFrame(pumpSize, KeyTime.FromPercent(0.1)));
animation.KeyFrames.Add(new LinearDoubleKeyFrame(size, KeyTime.FromPercent(1)));
geometry.BeginAnimation(EllipseGeometry.RadiusXProperty, animation);
geometry.BeginAnimation(EllipseGeometry.RadiusYProperty, animation);
}