private double EvaluateEdgeLength(
CompoundGraph <object, IEdge <object> > compoundGraph,
CompoundFDPLayoutAlgorithm <object, IEdge <object>, CompoundGraph <object, IEdge <object> > > algorithm,
Dictionary <object, Size> sizes,
double idealEdgeLength,
double nestingFactor)
{
double edgeLengthError = 0.0;
foreach (var edge in compoundGraph.Edges)
{
var uPos = algorithm.VertexPositions[edge.Source];
var vPos = algorithm.VertexPositions[edge.Target];
var uSize = sizes[edge.Source];
var vSize = sizes[edge.Target];
var uPoint = LayoutUtil.GetClippingPoint(uSize, uPos, vPos);
var vPoint = LayoutUtil.GetClippingPoint(vSize, vPos, uPos);
double length = (uPoint - vPoint).Length;
bool isInterEdge = compoundGraph.GetParent(edge.Source) != compoundGraph.GetParent(edge.Target);
var iel = isInterEdge
? idealEdgeLength *
(algorithm.LevelOfVertex(edge.Source) + algorithm.LevelOfVertex(edge.Target) + 1) *
nestingFactor
: idealEdgeLength;
double err = Math.Pow(length - iel, 2);
edgeLengthError += err;
}
return(edgeLengthError);
}
private static double EvaluateEdgeLength(
[NotNull] ICompoundGraph <object, IEdge <object> > compoundGraph,
[NotNull] CompoundFDPLayoutAlgorithm <object, IEdge <object>, CompoundGraph <object, IEdge <object> > > algorithm,
[NotNull] IReadOnlyDictionary <object, Size> verticesSizes,
double idealEdgeLength,
double nestingFactor)
{
double edgeLengthError = 0.0;
foreach (IEdge <object> edge in compoundGraph.Edges)
{
Point uPos = algorithm.VerticesPositions[edge.Source];
Point vPos = algorithm.VerticesPositions[edge.Target];
Size uSize = verticesSizes[edge.Source];
Size vSize = verticesSizes[edge.Target];
Point uPoint = LayoutUtils.GetClippingPoint(uSize, uPos, vPos);
Point vPoint = LayoutUtils.GetClippingPoint(vSize, vPos, uPos);
double length = (uPoint - vPoint).Length;
bool isInterEdge = compoundGraph.GetParent(edge.Source) != compoundGraph.GetParent(edge.Target);
double iel = isInterEdge
? idealEdgeLength *
(algorithm.LevelOfVertex(edge.Source) + algorithm.LevelOfVertex(edge.Target) + 1) *
nestingFactor
: idealEdgeLength;
double error = Math.Pow(length - iel, 2);
edgeLengthError += error;
}
return(edgeLengthError);
}