internal static Dictionary <string, object> FindOuterLinesAndOffsets(Polygon2d poly, double patientRoomDepth = 16, double extension = 8000, double recompute = 5)
{
if (!ValidateObject.CheckPoly(poly))
{
return(null);
}
Polygon2d polyReg = new Polygon2d(poly.Points);
List <Line2d> hLines = new List <Line2d>();
List <Line2d> vLines = new List <Line2d>();
List <Point2d> hMidPt = new List <Point2d>();
List <Point2d> vMidPt = new List <Point2d>();
List <Line2d> nonOrthoLines = new List <Line2d>();
int countOrtho = 0, countNonOrtho = 0;
for (int i = 0; i < polyReg.Points.Count; i++)
{
int a = i, b = i + 1;
if (i == polyReg.Points.Count - 1)
{
b = 0;
}
Line2d line = new Line2d(polyReg.Points[a], polyReg.Points[b]);
int lineType = ValidateObject.CheckLineOrient(line);
if (lineType > -1)
{
if (lineType == 0)
{
Line2d extendedLine = LineUtility.ExtendLine(line, extension);
hLines.Add(extendedLine);
hMidPt.Add(LineUtility.LineMidPoint(line));
}
if (lineType == 1)
{
Line2d extendedLine = LineUtility.ExtendLine(line, extension);
vLines.Add(extendedLine);
vMidPt.Add(LineUtility.LineMidPoint(line));
}
countOrtho += 1;
}
else
{
countNonOrtho += 1;
nonOrthoLines.Add(line);
}
}
List <Line2d> selectedHLines = new List <Line2d>();
List <Line2d> selectedVLines = new List <Line2d>();
int hIndLow = CodeToBeTested.ReturnLowestPointFromList(hMidPt);
int hIndHigh = CodeToBeTested.ReturnHighestPointFromList(hMidPt);
int vIndLow = PointUtility.LowestPointFromList(vMidPt);
int vIndHigh = PointUtility.HighestPointFromList(vMidPt);
if (hIndLow > -1)
{
selectedHLines.Add(hLines[hIndLow]);
}
if (hIndHigh > -1)
{
selectedHLines.Add(hLines[hIndHigh]);
}
if (vIndLow > -1)
{
selectedVLines.Add(vLines[vIndLow]);
}
if (vIndHigh > -1)
{
selectedVLines.Add(vLines[vIndHigh]);
}
List <Line2d> allSplitLines = new List <Line2d>();
allSplitLines.AddRange(selectedHLines);
allSplitLines.AddRange(selectedVLines);
List <double> splitLineLength = new List <double>();
for (int i = 0; i < allSplitLines.Count; i++)
{
splitLineLength.Add(allSplitLines[i].Length);
}
List <int> sortedIndices = BasicUtility.Quicksort(splitLineLength);
if (sortedIndices != null)
{
sortedIndices.Reverse();
}
List <Line2d> offsetLines = new List <Line2d>();
List <Point2d> midPtsOffsets = new List <Point2d>();
for (int i = 0; i < allSplitLines.Count; i++)
{
offsetLines.Add(LineUtility.Offset(allSplitLines[i], patientRoomDepth));
midPtsOffsets.Add(LineUtility.NudgeLineMidPt(allSplitLines[i], poly, patientRoomDepth));
}
List <Line2d> offsetSortedLines = new List <Line2d>();
for (int i = 0; i < offsetLines.Count; i++)
{
offsetSortedLines.Add(offsetLines[sortedIndices[i]]);
}
return(new Dictionary <string, object>
{
{ "SplittableLines", (allSplitLines) },
{ "OffsetLines", (offsetSortedLines) },
{ "SortedIndices", (sortedIndices) },
{ "OffsetMidPts", (midPtsOffsets) },
{ "NonOrthoLines", (nonOrthoLines) }
});
}