/// <summary>
///
/// </summary>
/// <param name="edge"></param>
/// <param name="cornerFitRadius"></param>
public static void CreateSimpleEdgeCurveWithGivenFitRadius(Edge edge, double cornerFitRadius)
{
ValidateArg.IsNotNull(edge, "edge");
var a = edge.Source.Center;
var b = edge.Target.Center;
if (edge.Source == edge.Target)
{
var dx = edge.Source.BoundaryCurve.BoundingBox.Width / 2;
var dy = edge.Source.BoundingBox.Height / 4;
edge.UnderlyingPolyline = CreateUnderlyingPolylineForSelfEdge(a, dx, dy);
for (var site = edge.UnderlyingPolyline.HeadSite.Next; site.Next != null; site = site.Next)
{
CalculateCoefficiensUnderSite(site, cornerFitRadius);
}
edge.Curve = edge.UnderlyingPolyline.CreateCurve();
}
else
{
edge.UnderlyingPolyline = SmoothedPolyline.FromPoints(new[] { a, b });
edge.Curve = edge.UnderlyingPolyline.CreateCurve();
}
if (!Arrowheads.TrimSplineAndCalculateArrowheads(edge.EdgeGeometry, edge.Source.BoundaryCurve, edge.Target.BoundaryCurve, edge.Curve,
true))
{
Arrowheads.CreateBigEnoughSpline(edge);
}
}
static void CreateCurveOnChangedPolyline(GeomEdge e)
{
Curve curve = e.UnderlyingPolyline.CreateCurve();
if (
!Arrowheads.TrimSplineAndCalculateArrowheads(e.EdgeGeometry, e.Source.BoundaryCurve,
e.Target.BoundaryCurve, curve, false, false))
{
Arrowheads.CreateBigEnoughSpline(e);
}
}
void CreateEdgeCurve(DrawingEdge de, LayoutEdge le)
{
var a = de.SourceNode.GeometryNode.Center;
var b = de.TargetNode.GeometryNode.Center;
Site start, end, mids;
if (Source.Label == Target.Label)
{
start = new Site(a);
end = new Site(b);
var mid1 = de.SourceNode.GeometryNode.Center;
mid1.X += (de.SourceNode.GeometryNode.BoundingBox.Width / 3 * 2);
var mid2 = mid1;
mid1.Y -= de.SourceNode.GeometryNode.BoundingBox.Height / 2;
mid2.Y += de.SourceNode.GeometryNode.BoundingBox.Height / 2;
Site mid1s = new Site(mid1);
Site mid2s = new Site(mid2);
start.Next = mid1s;
mid1s.Previous = start;
mid1s.Next = mid2s;
mid2s.Previous = mid1s;
mid2s.Next = end;
end.Previous = mid2s;
}
else
{
start = new Site(a);
end = new Site(b);
mids = new Site(a * 0.5 + b * 0.5);
start.Next = mids;
mids.Previous = start;
mids.Next = end;
end.Previous = mids;
}
SmoothedPolyline polyline = new SmoothedPolyline(start);
le.UnderlyingPolyline = polyline;
le.Curve = polyline.CreateCurve();
if (Arrowheads.TrimSplineAndCalculateArrowheads(le, le.Curve, true, true) == false)
{
Arrowheads.CreateBigEnoughSpline(le);
}
}
/// <summary>
/// creates an edge curve based only on the source and target geometry
/// </summary>
/// <param name="edge"></param>
public static void CreateSimpleEdgeCurve(Edge edge)
{
ValidateArg.IsNotNull(edge, "edge");
var a = edge.Source.Center;
var b = edge.Target.Center;
if (edge.Source == edge.Target)
{
var dx = edge.Source.BoundaryCurve.BoundingBox.Width / 2;
var dy = edge.Source.BoundingBox.Height / 4;
edge.UnderlyingPolyline = CreateUnderlyingPolylineForSelfEdge(a, dx, dy);
edge.Curve = edge.UnderlyingPolyline.CreateCurve();
}
else
{
edge.UnderlyingPolyline = SmoothedPolyline.FromPoints(new[] { a, b });
edge.Curve = edge.UnderlyingPolyline.CreateCurve();
}
if (!Arrowheads.TrimSplineAndCalculateArrowheads(edge.EdgeGeometry, edge.Source.BoundaryCurve, edge.Target.BoundaryCurve, edge.Curve, true))
{
Arrowheads.CreateBigEnoughSpline(edge);
}
}