public List <Polygon> RecognizeImagePolygon(Image pImage, out List <Line> lines, bool deepSearch = true)
{
var f = new LineFinder();
lines = f.ScanBitmap(pImage as Bitmap);
var s = new PolygonFinder();
List <Polygon> maxPolygon = new List <Polygon>();
int maxPoints = 0;
double maxPolygonLength = 0;
for (int n = 0; n < lines.Count * 2; n++)
{
int pointsCovered = 0;
double polygonLength = 0;
var polygon = s.FindContour(lines, out pointsCovered, out polygonLength, n);
if (pointsCovered > maxPoints ||
(pointsCovered == maxPoints &&
polygonLength < maxPolygonLength))
{ // si cubre más puntos, o cubre los mismos con menos tramos
maxPolygon = polygon;
maxPolygonLength = polygonLength;
maxPoints = pointsCovered;
}
if (n == 10 && deepSearch == false)
{
break;
}
}
// si tiene pendientes, retoma la búsqueda
return(maxPolygon);
}
private bool mergeOverlap()
{
for (int n = 0; n < Lines.Count; n++)
{
Line l1 = Lines[n];
for (int i = 0; i < Lines.Count; i++)
{
if (i != n)
{
Line l2 = Lines[i];
if (PolygonFinder.doLinesIntersect(l1, l2))
{
Lines.RemoveAt(Math.Max(i, n));
Lines.RemoveAt(Math.Min(i, n));
if (l1.P1.X < l2.P1.X)
{
Lines.Add(new Line(l1.P1, l2.P2));
}
else
{
Lines.Add(new Line(l2.P1, (l1.P2.X < l2.P2.X ? l2.P2 : l1.P2)));
}
return(true);
}
}
}
}
return(false);
}
private static List <Coordinate> CreatePointsSet(RadioInfo radio, bool project, ref double xMin, ref double xMax, ref double yMin, ref double yMax, Polygon polygon)
{
if (polygon[0] != polygon[polygon.Count - 1])
{
if (polygon.Count == 2)
{
// le hace triángulo
polygon.Add(new System.Drawing.Point(polygon[0].X, polygon[1].Y));
}
polygon.Add(polygon[0]);
}
//////////////////////
Coordinate from = radio.GetFrom();
Coordinate to = radio.GetTo();
double xScale = (to.X - from.X) / radio.ImageExtents.Width;
double yScale = (to.Y - from.Y) / radio.ImageExtents.Height;
List <Coordinate> puntos = new List <Coordinate>();
IPoint lastP = null;
foreach (System.Drawing.Point p in polygon)
{
var newPoint = new NetTopologySuite.Geometries.Point(xScale * p.X +
from.X, yScale * (radio.ImageExtents.Height - p.Y) + from.Y);
IPoint point;
if (project)
{
point = Projections.UnprojectPoint(newPoint, Context.Projection);
}
else
{
point = newPoint;
}
xMin = Math.Min(point.X, xMin);
xMax = Math.Max(point.X, xMax);
yMin = Math.Min(point.Y, yMin);
yMax = Math.Max(point.Y, yMax);
puntos.Add(new Coordinate(point.X, point.Y));
if (lastP != null)
{
radio.TotalPerimeter += PolygonFinder.EuclideanDist(point, lastP);
}
lastP = point;
}
return(puntos);
}
