private static IEnumerable <Vector3> ArcVertices(IArc arc, IArc nextArc, Sweepline sweepline)
{
if (arc.LeftNeighbour == arc.Site)
{
var azimuths = DrawingUtilities.AnglesInRange(0, 2 * Mathf.PI, NumberOfVerticesPerArc);
var vertices = azimuths.Select(azimuth => PointOnEllipse(arc, azimuth, sweepline)).ToList();
return(vertices);
}
else if (Mathf.Approximately((float)arc.Site.Priority, (float)sweepline.Priority))
{
var intersection = arc.PointOfIntersection(sweepline).ToUnityVector3();
var site = arc.Site.Position.ToUnityVector3();
var downArc = DrawingUtilities.VerticesOnGeodesic(intersection, site, NumberOfVerticesPerArc);
var upArc = DrawingUtilities.VerticesOnGeodesic(site, intersection, NumberOfVerticesPerArc);
var vertices = downArc.Concat(upArc);
return(vertices);
}
else
{
var leftLimit = DrawingUtilities.AzimuthOf(arc.LeftIntersection(sweepline).ToUnityVector3());
var rightLimit = DrawingUtilities.AzimuthOf(nextArc.LeftIntersection(sweepline).ToUnityVector3());
var azimuths = DrawingUtilities.AnglesInRange(leftLimit, rightLimit, NumberOfVerticesPerArc);
var vertices = azimuths.Select(azimuth => PointOnEllipse(arc, azimuth, sweepline)).ToList();
return(vertices);
}
}
private Vector3[] CircleEventVertices(CircleEvent circle)
{
var angles = DrawingUtilities.AnglesInRange(0, 2 * Mathf.PI, NumberOfVerticesPerCircle);
var points = angles.Select(angle => VertexOfCircleEvent(circle, angle)).ToArray();
return(points);
}
private static Vector3[] SweeplineVertices(Sweepline sweepline)
{
if (Math.Abs(sweepline.Z) >= 1)
{
return(new Vector3[0]);
}
var azimuths = DrawingUtilities.AnglesInRange(0, 2 * Mathf.PI, NumberOfVertices);
var vertices = azimuths.Select(azimuth => VertexOnSweepline(sweepline, azimuth)).ToArray();
return(vertices);
}
private static GameObject DrawLabelsAtColatitude(float colatitude)
{
var azimuths = DrawingUtilities.AnglesInRange(0, 2 * Mathf.PI, 36);
var labels = azimuths.Take(36).Select(azimuth => DrawLabel(colatitude, azimuth));
var parentObject = new GameObject("Latitude Labels " + Mathf.Rad2Deg * colatitude);
foreach (var label in labels)
{
label.transform.parent = parentObject.transform;
}
return(parentObject);
}
private static GameObject DrawLongitude(float azimuth)
{
var azimuths = DrawingUtilities.AnglesInRange(0, Mathf.PI, NumberOfPointsPerLongitude);
var vertices =
azimuths.Select(
colatitude => DrawingUtilities.CreateVectorAt(colatitude, azimuth))
.ToArray();
var longitudeObject =
DrawingUtilities.CreateLineObject(
"Longitude " + Mathf.Rad2Deg * azimuth,
vertices,
"Boundaries");
return(longitudeObject);
}
