/// <summary>
/// Set node coordinates on all nodes
/// </summary>
/// <param name="nodeLayoutDataList">list of nodes to set coordinates on</param>
private void SetNodeCoordinates(IEnumerable<NodeLayoutData> nodeLayoutDataList)
{
double? minX = 0;
double? maxX = 0;
double? minY = 0;
double? maxY = 0;
NodePointList nodeCoordinateData = new NodePointList();
foreach (NodeLayoutData nodeData in nodeLayoutDataList)
{
if (minX == null || minX > nodeData.Coordinates.X)
{
minX = nodeData.Coordinates.X;
}
if (maxX == null || maxX < nodeData.Coordinates.X)
{
maxX = nodeData.Coordinates.X;
}
if (minY == null || minY > nodeData.Coordinates.Y)
{
minY = nodeData.Coordinates.Y;
}
if (maxY == null || maxY < nodeData.Coordinates.Y)
{
maxY = nodeData.Coordinates.Y;
}
}
if (minX != null && maxX != null && minY != null && maxX != null)
{
double xRange = maxX.Value - minX.Value;
double yRange = maxY.Value - minY.Value;
foreach (NodeLayoutData nodeData in nodeLayoutDataList)
{
double x = ((nodeData.Coordinates.X - minX.Value) / xRange) * MaximumScaledX;
double y = ((nodeData.Coordinates.Y - minY.Value) / yRange) * MaximumScaledY;
//x = nodeData.Coordinates.X;
//y = nodeData.Coordinates.Y;
nodeCoordinateData.Add(new NodePoint() { Node = nodeData.Node, Coordinate = new Point(x, y) });
}
}
double minDist = double.MaxValue;
foreach (NodePoint np in nodeCoordinateData)
{
foreach (NodePoint np2 in nodeCoordinateData)
{
if (np != np2)
{
double dx = np.Coordinate.X - np2.Coordinate.X;
double dy = np.Coordinate.Y - np2.Coordinate.Y;
double distance = Math.Sqrt((Math.Pow(dx, 2) + Math.Pow(dy, 2)));
if (distance < minDist)
{
minDist = distance;
}
}
}
}
// avoid rendering invalid solutions
if (minDist > _defaultSpringStableDistance / 10.0)
{
_setNodeCoordinatesDelegate(nodeCoordinateData);
}
}