/// <inheritdoc/>
public EdgeWrap GetEdgeWrap(int faceIndex, int neighborIndex)
{
if (faceIndex < 0 || faceIndex >= _internalFaceCount)
{
throw new ArgumentOutOfRangeException("faceIndex");
}
if (!_wrapRows && !_wrapCols)
{
return(EdgeWrap.None);
}
EdgeWrap wrap;
switch (!_reverseWindingOrder ? neighborIndex : (6 - neighborIndex) % 6)
{
case 0: wrap =
(WrapsOnSidePosRow(faceIndex) && !IsBackIndentedLower(faceIndex) ? EdgeWrap.NegVertToEdgeAxis0 : EdgeWrap.None);
break;
case 1: wrap =
(WrapsOnSidePosCol(faceIndex) ? EdgeWrap.PosEdgeToVertAxis1 : EdgeWrap.None);
break;
case 2: wrap =
(WrapsOnSidePosCol(faceIndex) ? EdgeWrap.PosFaceToEdgeAxis1 : EdgeWrap.None) |
(WrapsOnSidePosRow(faceIndex) && !IsBackIndentedUpper(faceIndex) ? EdgeWrap.PosEdgeToVertAxis0 : EdgeWrap.None);
break;
case 3: wrap =
(WrapsOnSidePosCol(faceIndex) ? EdgeWrap.PosFaceToEdgeAxis1 : EdgeWrap.None) |
(WrapsOnSidePosRow(faceIndex) && !IsBackIndentedUpper(faceIndex) ? EdgeWrap.PosFaceToEdgeAxis0 : EdgeWrap.None) |
(WrapsOnSidePosRow(faceIndex) && IsBackIndentedUpper(faceIndex) ? EdgeWrap.PosEdgeToVertAxis0 : EdgeWrap.None);
break;
case 4: wrap =
(WrapsOnSidePosRow(faceIndex) ? EdgeWrap.PosFaceToEdgeAxis0 : EdgeWrap.None) |
(WrapsOnSidePosCol(faceIndex) ? EdgeWrap.NegVertToEdgeAxis1 : EdgeWrap.None);
break;
case 5: wrap =
(WrapsOnSidePosRow(faceIndex) && !IsBackIndentedLower(faceIndex) ? EdgeWrap.PosFaceToEdgeAxis0 : EdgeWrap.None) |
(WrapsOnSidePosRow(faceIndex) && IsBackIndentedLower(faceIndex) ? EdgeWrap.NegVertToEdgeAxis0 : EdgeWrap.None);
break;
default:
throw new ArgumentOutOfRangeException("neighborIndex");
}
if (_reverseWindingOrder)
{
wrap = EdgeWrapUtility.InvertVertexEdgeRelations(wrap);
}
if (_reverseColumnsRows)
{
wrap = EdgeWrapUtility.SwapAxes(wrap);
}
return(wrap);
}
