public void Begin()
{
branchInContour[0] = new List <CVisitedBranch>();
branchInContour[1] = new List <CVisitedBranch>();
sideOfContour = EContourSide.LEFT;
index = 0;
}
public bool Next(out CVisitedBranch branch, out CVisitedNode node, Dictionary <long, CVisitedNode> visitedNodes, byte phaseIndex)
{
switch (sideOfContour)
{
case (sbyte)EContourSide.LEFT:
{
branch = branchInContour[0][index];
node = visitedNodes[branch.UpNode[phaseIndex]];
if (index < branchInContour[0].Count - 1)
{
index++;
}
else
{
sideOfContour = EContourSide.RIGHT;
index = branchInContour[1].Count - 1;
}
return(true);
}
case EContourSide.RIGHT:
{
branch = branchInContour[1][index];
node = visitedNodes[branch.UpNode[phaseIndex]];
if (index > 0)
{
index--;
}
else
{
sideOfContour = EContourSide.UNKNOWN;
}
return(true);
}
default:
{
node = null;
branch = null;
return(false);
}
}
}
