//check if a given polygon2d has any of its longer edges aligned with any edge of the containerpolygon2d
internal static bool CheckLineGetsExternalWall(Line2d lineA, Polygon2d containerPoly)
{
bool check = false;
if (!ValidateObject.CheckPoly(containerPoly))
{
return(check);
}
Polygon2d containerPolyReg = new Polygon2d(containerPoly.Points);
for (int i = 0; i < containerPoly.Points.Count; i++)
{
int a = i, b = i + 1;
if (i == containerPolyReg.Points.Count - 1)
{
b = 0;
}
Line2d lineB = Line2d.ByStartPointEndPoint(containerPolyReg.Points[a], containerPolyReg.Points[b]);
check = GraphicsUtility.LineAdjacencyCheck(lineA, lineB);
if (check)
{
break;
}
}
return(check);
}
//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);
}
//make the given poly all points orthonogonal to each other
internal static Polygon2d MakePolyPointsOrtho(Polygon2d poly)
{
Polygon2d polyReg = new Polygon2d(poly.Points);
List <Point2d> ptForOrthoPoly = new List <Point2d>();
for (int i = 0; i < polyReg.Points.Count; i++)
{
Point2d pt = Point2d.ByCoordinates(polyReg.Points[i].X, polyReg.Points[i].Y);
ptForOrthoPoly.Add(pt);
}
for (int i = 0; i < polyReg.Points.Count; i++)
{
int a = i, b = i + 1;
double eps = 50;
if (i == polyReg.Points.Count - 1)
{
b = 0;
}
Line2d line = new Line2d(polyReg.Points[a], polyReg.Points[b]);
if (ValidateObject.CheckLineOrient(line) == -1)
{
//double diffX = Math.Abs(line.StartPoint.X - line.EndPoint.X);
//double diffY = Math.Abs(line.StartPoint.Y - line.EndPoint.Y);
Point2d cenPoly = PolygonUtility.CentroidOfPoly(polyReg);
Point2d ptEndA = Point2d.ByCoordinates(polyReg.Points[a].X + eps, polyReg.Points[a].Y);
Line2d refLineA = Line2d.ByStartPointEndPoint(polyReg.Points[a], ptEndA);
Point2d ptEndB = Point2d.ByCoordinates(polyReg.Points[b].X + eps, polyReg.Points[b].Y);
Line2d refLineB = Line2d.ByStartPointEndPoint(polyReg.Points[b], ptEndB);
Point2d projectedPtA = GraphicsUtility.ProjectedPointOnLine(refLineB, polyReg.Points[a]);
Point2d projectedPtB = GraphicsUtility.ProjectedPointOnLine(refLineA, polyReg.Points[b]);
Vector2d vecA = new Vector2d(projectedPtA, cenPoly);
Vector2d vecB = new Vector2d(projectedPtB, cenPoly);
double vecALength = vecA.Length;
double vecBLength = vecB.Length;
if (vecALength > vecBLength)
{
//ptForOrthoPoly[i] = projectedPtA;
ptForOrthoPoly.Insert(b, projectedPtB);
}
else
{
//ptForOrthoPoly[i] = projectedPtB;
ptForOrthoPoly.Insert(b, projectedPtA);
}
/*
* if (diffX > diffY)
* {
* Point2d ptEndA = Point2d.ByCoordinates(polyReg.Points[a].X, polyReg.Points[a].Y + eps);
* Line2d refLineA = Line2d.ByStartPointEndPoint(polyReg.Points[a], ptEndA);
* refLineA = LineUtility.extend(refLineA);
*
* Point2d ptEndB = Point2d.ByCoordinates(polyReg.Points[b].X, polyReg.Points[b].Y + eps);
* Line2d refLineB = Line2d.ByStartPointEndPoint(polyReg.Points[b], ptEndB);
* refLineB = LineUtility.extend(refLineB);
*
* Point2d projectedPtA = GraphicsUtility.ProjectedPointOnLine(refLineB, polyReg.Points[a]);
* Point2d projectedPtB = GraphicsUtility.ProjectedPointOnLine(refLineA, polyReg.Points[b]);
*
* Vector2d vecA = new Vector2d(projectedPtA, cenPoly);
* Vector2d vecB = new Vector2d(projectedPtB, cenPoly);
* double vecALength = vecA.Length;
* double vecBLength = vecB.Length;
* if(vecALength < vecBLength)
* {
* //ptForOrthoPoly[i] = projectedPtA;
* ptForOrthoPoly.Insert(b, projectedPtB);
* }
* else
* {
* //ptForOrthoPoly[i] = projectedPtB;
* ptForOrthoPoly.Insert(b, projectedPtA);
* }
* }
* else
* {
*
* Point2d ptEndA = Point2d.ByCoordinates(polyReg.Points[a].X + eps, polyReg.Points[a].Y);
* Line2d refLineA = Line2d.ByStartPointEndPoint(polyReg.Points[a], ptEndA);
* refLineA = LineUtility.extend(refLineA);
*
* Point2d ptEndB = Point2d.ByCoordinates(polyReg.Points[b].X + eps, polyReg.Points[b].Y);
* Line2d refLineB = Line2d.ByStartPointEndPoint(polyReg.Points[b], ptEndB);
* refLineB = LineUtility.extend(refLineB);
*
* Point2d projectedPtA = GraphicsUtility.ProjectedPointOnLine(refLineB, polyReg.Points[a]);
* Point2d projectedPtB = GraphicsUtility.ProjectedPointOnLine(refLineA, polyReg.Points[b]);
*
* Vector2d vecA = new Vector2d(projectedPtA, cenPoly);
* Vector2d vecB = new Vector2d(projectedPtB, cenPoly);
* double vecALength = vecA.Length;
* double vecBLength = vecB.Length;
* if (vecALength < vecBLength)
* {
* //ptForOrthoPoly[i] = projectedPtA;
* ptForOrthoPoly.Insert(b, projectedPtB);
* }
* else
* {
* //ptForOrthoPoly[i] = projectedPtB;
* ptForOrthoPoly.Insert(b, projectedPtB);
* }
* }
*/
}
}
return(new Polygon2d(ptForOrthoPoly));
}