public static DotGraph AddQuadTree <T>(this DotGraph dotGraph, GMacQuadTree <T> quadTree, bool showFullGraph)
{
var maxTreeDepth = quadTree.TreeDepth;
var activeIDs = quadTree.LeafNodeIDs.ToArray();
var inactiveColor = DotColor.Rgb(Color.Gray);
var activeColor = DotColor.Rgb(Color.Black);
dotGraph.SetRankDir(DotRankDirection.LeftToRight);
dotGraph.SetSplines(DotSplines.Spline);
dotGraph.SetOverlap(DotOverlap.False);
dotGraph.SetNodeMarginDelta(12);
var nodeDefaults = dotGraph.AddNodeDefaults();
nodeDefaults.SetShape(DotNodeShape.Circle);
nodeDefaults.SetStyle(DotNodeStyle.Solid);
nodeDefaults.SetColor(inactiveColor);
nodeDefaults.SetFontColor(inactiveColor);
nodeDefaults.SetPenWidth(1.0f);
var edgeDefaults = dotGraph.AddEdgeDefaults();
edgeDefaults.SetArrowHead(DotArrowType.Vee);
edgeDefaults.SetStyle(DotEdgeStyle.Dashed);
edgeDefaults.SetColor(inactiveColor);
edgeDefaults.SetFontColor(inactiveColor);
edgeDefaults.SetPenWidth(1.0f);
var idsStack1 = new Stack <ulong>();
idsStack1.Push(0ul);
var idsStack2 = new Stack <ulong>();
idsStack2.Push(0ul);
var treeDepthStack = new Stack <int>();
treeDepthStack.Push(maxTreeDepth);
var s = "".PadRight(maxTreeDepth, '-');
var dotNodeName = s + ", " + s;
var dotNodeLabel = s + '\n' + s;
var dotNode = dotGraph.AddNode(dotNodeName);
dotNode.SetShape(DotNodeShape.DoubleCircle);
dotNode.SetStyle(DotNodeStyle.Solid);
dotNode.SetColor(activeColor);
dotNode.SetFontColor(activeColor);
dotNode.SetPenWidth(2.0f);
dotNode.SetLabel(dotNodeLabel);
while (idsStack1.Count > 0)
{
var idPart1 = idsStack1.Pop();
var idPart2 = idsStack2.Pop();
var treeDepth = treeDepthStack.Pop();
var s1 = treeDepth == maxTreeDepth
? "".PadRight(treeDepth, '-')
: idPart1.PatternToStringPadRight(maxTreeDepth, treeDepth);
var s2 = treeDepth == maxTreeDepth
? "".PadRight(treeDepth, '-')
: idPart2.PatternToStringPadRight(maxTreeDepth, treeDepth);
dotNodeName = s1 + ", " + s2;
dotNode = dotGraph.AddNode(dotNodeName);
var childNodesBitMask = 1ul << (treeDepth - 1);
//Add child node 00
var childNodeId = Tuple.Create(idPart1, idPart2);
var isActive = childNodeId.IsActiveQuadTreeNodeId(childNodesBitMask, activeIDs);
if (showFullGraph || isActive)
{
AddChildNode(
dotNode,
childNodeId,
treeDepth - 1,
maxTreeDepth,
isActive,
activeColor
);
if (treeDepth > 1)
{
idsStack1.Push(childNodeId.Item1);
idsStack2.Push(childNodeId.Item2);
treeDepthStack.Push(treeDepth - 1);
}
}
//Add child node 01
childNodeId = Tuple.Create(idPart1 | childNodesBitMask, idPart2);
isActive = childNodeId.IsActiveQuadTreeNodeId(childNodesBitMask, activeIDs);
if (showFullGraph || isActive)
{
AddChildNode(
dotNode,
childNodeId,
treeDepth - 1,
maxTreeDepth,
isActive,
activeColor
);
if (treeDepth > 1)
{
idsStack1.Push(childNodeId.Item1);
idsStack2.Push(childNodeId.Item2);
treeDepthStack.Push(treeDepth - 1);
}
}
//Add child node 10
childNodeId = Tuple.Create(idPart1, idPart2 | childNodesBitMask);
isActive = childNodeId.IsActiveQuadTreeNodeId(childNodesBitMask, activeIDs);
if (showFullGraph || isActive)
{
AddChildNode(
dotNode,
childNodeId,
treeDepth - 1,
maxTreeDepth,
isActive,
activeColor
);
if (treeDepth > 1)
{
idsStack1.Push(childNodeId.Item1);
idsStack2.Push(childNodeId.Item2);
treeDepthStack.Push(treeDepth - 1);
}
}
//Add child node 11
childNodeId = Tuple.Create(idPart1 | childNodesBitMask, idPart2 | childNodesBitMask);
isActive = childNodeId.IsActiveQuadTreeNodeId(childNodesBitMask, activeIDs);
if (showFullGraph || isActive)
{
AddChildNode(
dotNode,
childNodeId,
treeDepth - 1,
maxTreeDepth,
isActive,
activeColor
);
if (treeDepth > 1)
{
idsStack1.Push(childNodeId.Item1);
idsStack2.Push(childNodeId.Item2);
treeDepthStack.Push(treeDepth - 1);
}
}
}
return(dotGraph);
}
/// <summary>
/// Try to get a child node if it exists, else create a new internal child and return it
/// </summary>
/// <param name="rightChild1"></param>
/// <param name="rightChild2"></param>
/// <returns></returns>
public GMacQuadTree <T> GetOrAddInternalChildNode(bool rightChild1, bool rightChild2)
{
Debug.Assert(TreeDepth > 1);
if (rightChild1)
{
if (rightChild2)
{
var childNode = ChildNode11 as GMacQuadTree <T>;
if (!ReferenceEquals(childNode, null))
{
return(childNode);
}
childNode = new GMacQuadTree <T>(TreeDepth - 1);
ChildNode11 = childNode;
return(childNode);
}
else
{
var childNode = ChildNode01 as GMacQuadTree <T>;
if (!ReferenceEquals(childNode, null))
{
return(childNode);
}
childNode = new GMacQuadTree <T>(TreeDepth - 1);
ChildNode01 = childNode;
return(childNode);
}
}
else
{
if (rightChild2)
{
var childNode = ChildNode10 as GMacQuadTree <T>;
if (!ReferenceEquals(childNode, null))
{
return(childNode);
}
childNode = new GMacQuadTree <T>(TreeDepth - 1);
ChildNode10 = childNode;
return(childNode);
}
else
{
var childNode = ChildNode00 as GMacQuadTree <T>;
if (!ReferenceEquals(childNode, null))
{
return(childNode);
}
childNode = new GMacQuadTree <T>(TreeDepth - 1);
ChildNode00 = childNode;
return(childNode);
}
}
}