What is the best solution for getting the middle point of an ArcSegment in a path and label it in WPF?
This should work:
//the given arc (or any other segments)
var arc = new ArcSegment(
point: new Point(200, 100),
size: new Size(100, 50),
rotationAngle: 90,
isLargeArc: true,
sweepDirection: SweepDirection.Counterclockwise,
isStroked: true);
//compose one or more segments into a collection
var pathcoll = new PathSegmentCollection();
pathcoll.Add(arc);
//create a figure based on the set of segments
var figure = new PathFigure();
figure.Segments = pathcoll;
//compose a collection of figures
var figcoll = new PathFigureCollection();
figcoll.Add(figure);
//create a path-geometry using the figures collection
var geom = new PathGeometry(figcoll);
double fraction = 0.5; //the relative point of the curve
Point pt; //the absolute point of the curve
Point tg; //the tangent point of the curve
geom.GetPointAtFractionLength(
fraction,
out pt,
out tg);
Hope it helps.
Cheers
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