public static Geometry GetGenericGeometry(MarkersType markersType, double width, double height)
{
StreamGeometry geometry = new StreamGeometry();
GenericMarker markerSpecification = GenericMarkerLookup[markersType];
using (StreamGeometryContext ctx = geometry.Open())
{
ctx.BeginFigure(new Point(markerSpecification.X[0] * width, markerSpecification.Y[0] * height), false /* is filled */, true /* is closed */);
int n = markerSpecification.X.Length;
for (int i = 1; i < n; ++i)
{
ctx.LineTo(new Point(markerSpecification.X[i] * width, markerSpecification.Y[i] * height), true /* is stroked */, false /* is smooth join */);
}
}
return(geometry);
}
public static Geometry MarkerGeometry(MarkersType markersType, Factory factory, float width, float height)
{
Geometry geometry = null;
switch (markersType)
{
case MarkersType.None:
break;
case MarkersType.Square:
geometry = new RectangleGeometry(factory, new System.Drawing.RectangleF()
{
X = 0,
Y = 0,
Width = width,
Height = height
});
break;
case MarkersType.Circle:
geometry = new EllipseGeometry(factory, new Ellipse()
{
Point = new System.Drawing.PointF(0, 0),
RadiusX = width / 2,
RadiusY = height / 2,
});
break;
default:
GenericMarker markerSpecification = MarkerGeometries.GenericMarkerLookup[markersType];
geometry = new PathGeometry(factory);
using (GeometrySink sink = (geometry as PathGeometry).Open())
{
PointF p0 = new PointF((float)markerSpecification.X[0] * width, (float)markerSpecification.Y[0] * height);
sink.BeginFigure(p0, FigureBegin.Hollow);
int n = markerSpecification.X.Length;
for (int i = 1; i < n; ++i)
{
sink.AddLine(new PointF((float)markerSpecification.X[i] * width, (float)markerSpecification.Y[i] * height));
}
sink.EndFigure(FigureEnd.Closed);
sink.Close();
}
break;
}
return(geometry);
}