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 }
});
}
public static Dictionary <string, object> OfPointsFromOrigin(
Point origin,
List <Point> points,
List <Polygon> boundary,
[DefaultArgument("[]")] List <Polygon> obstructions = null)
{
if (origin is null)
{
throw new ArgumentNullException(nameof(origin));
}
if (points is null || points.Count == 0)
{
throw new ArgumentNullException(nameof(points));
}
if (obstructions == null)
{
obstructions = new List <Polygon>();
}
Polygon isovist = IsovistPolygon(origin, obstructions, boundary);
GTGeom.Polygon isovistPolygon = GTGeom.Polygon.ByVertices(isovist.Points.Select(p => GTGeom.Vertex.ByCoordinates(p.X, p.Y, p.Z)).ToList());
var visiblePoints = new List <Point>();
double totalPoints = points.Count;
double visibilityAmount = 0;
for (var i = 0; i < points.Count; i++)
{
var point = points[i];
GTGeom.Vertex vertex = GTGeom.Vertex.ByCoordinates(point.X, point.Y, point.Z);
if (isovistPolygon.ContainsVertex(vertex))
{
++visibilityAmount;
visiblePoints.Add(point);
}
}
isovist.Dispose();
var visibilityPercentageScore = (1 / totalPoints) * visibilityAmount * 100;
return(new Dictionary <string, object>()
{
{ percentageVisibleOutputPort, visibilityPercentageScore },
{ visibleItemsOutputPort, visiblePoints }
});
}
