//check if a given polygon2d has any of its longer edges aligned with any edge of the containerpolygon2d
internal static bool CheckPolyGetsExternalWall(Polygon2d poly, Polygon2d containerPoly, double shortEdgeDist = 16, bool tag = true)
{
bool check = false;
if (!ValidateObject.CheckPoly(poly))
{
return(check);
}
Polygon2d polyReg = new Polygon2d(null);
//make given polys reduce number of points
if (tag)
{
polyReg = new Polygon2d(poly.Points);
}
else
{
polyReg = poly;
}
Polygon2d containerPolyReg = new Polygon2d(containerPoly.Points);
for (int i = 0; i < polyReg.Points.Count; i++)
{
int a = i, b = i + 1;
double eps = 0;
if (i == polyReg.Points.Count - 1)
{
b = 0;
}
double distance = PointUtility.DistanceBetweenPoints(polyReg.Points[a], polyReg.Points[b]);
List <double> spansSorted = PolygonUtility.GetPolySpan(containerPolyReg);
if (distance <= spansSorted[0] * 0.75)
{
continue;
}
Line2d lineA = Line2d.ByStartPointEndPoint(polyReg.Points[a], polyReg.Points[b]);
for (int j = 0; j < containerPolyReg.Points.Count; j++)
{
int c = j, d = j + 1;
if (j == containerPolyReg.Points.Count - 1)
{
d = 0;
}
Line2d lineB = Line2d.ByStartPointEndPoint(containerPolyReg.Points[c], containerPolyReg.Points[d]);
check = GraphicsUtility.LineAdjacencyCheck(lineA, lineB, eps);
if (check)
{
break;
}
}
if (check)
{
break;
}
}
return(check);
}
