public static Dictionary <string, object> FromOrigin(
DSGeom.Point origin,
List <DSGeom.Point> points,
List <DSGeom.Polygon> boundary,
[DefaultArgument("[]")] List <DSGeom.Polygon> obstacles)
{
DSGeom.Polygon isovist = IsovistPolygon(boundary, obstacles, origin);
GTGeom.Polygon gPol = GTGeom.Polygon.ByVertices(isovist.Points.Select(p => GTGeom.Vertex.ByCoordinates(p.X, p.Y, p.Z)).ToList());
List <DSGeom.Point> visPoints = new List <DSGeom.Point>();
double totalPoints = points.Count;
double visibilityAmount = 0;
foreach (DSGeom.Point point in points)
{
GTGeom.Vertex vertex = GTGeom.Vertex.ByCoordinates(point.X, point.Y, point.Z);
if (gPol.ContainsVertex(vertex))
{
++visibilityAmount;
visPoints.Add(point);
}
}
isovist.Dispose();
return(new Dictionary <string, object>()
{
{ scoreOutputPort, (1 / totalPoints) * visibilityAmount },
{ geometryOutputPort, visPoints }
});
}
protected override void DisposeDisplayable()
{
//We need to call Dispose on display polygon so that this polygon's
//display is disposed.
if (null != mDisplayPolygon)
{
mDisplayPolygon.Dispose();
}
base.DisposeDisplayable();
}