internal static Dictionary <string, object> CheckLinesOffsetInPoly(Polygon2d poly, Polygon2d containerPoly, double distance = 10, bool tag = false)
{
if (!CheckPoly(poly))
{
return(null);
}
Polygon2d oPoly = PolygonUtility.OffsetPoly(poly, 0.2);
List <bool> offsetAble = new List <bool>();
List <List <Point2d> > pointsOutsideList = new List <List <Point2d> >();
List <Line2d> linesNotOffset = new List <Line2d>();
List <int> indicesFalse = new List <int>();
for (int i = 0; i < poly.Points.Count; i++)
{
bool offsetAllow = false;
int a = i, b = i + 1;
if (i == poly.Points.Count - 1)
{
b = 0;
}
Line2d line = poly.Lines[i];
Point2d offStartPt = LineUtility.OffsetLinePointInsidePoly(line, line.StartPoint, oPoly, distance);
Point2d offEndPt = LineUtility.OffsetLinePointInsidePoly(line, line.EndPoint, oPoly, distance);
bool checkStartPt = GraphicsUtility.PointInsidePolygonTest(oPoly, offStartPt);
bool checkEndPt = GraphicsUtility.PointInsidePolygonTest(oPoly, offEndPt);
bool checkExtEdge = LayoutUtility.CheckLineGetsExternalWall(line, containerPoly);
if (tag)
{
checkExtEdge = true;
}
List <Point2d> pointsDefault = new List <Point2d>();
if (checkStartPt && checkEndPt && checkExtEdge)
{
offsetAllow = true;
indicesFalse.Add(-1);
pointsDefault.Add(null);
}
else
{
if (!checkStartPt)
{
pointsDefault.Add(line.StartPoint);
}
if (!checkEndPt)
{
pointsDefault.Add(line.EndPoint);
}
linesNotOffset.Add(line);
indicesFalse.Add(i);
offsetAllow = false;
}
pointsOutsideList.Add(pointsDefault);
offsetAble.Add(offsetAllow);
}
return(new Dictionary <string, object>
{
{ "LinesFalse", (linesNotOffset) },
{ "Offsetables", (offsetAble) },
{ "IndicesFalse", (indicesFalse) },
{ "PointsOutside", (pointsOutsideList) }
});
}