public VoronoiGraph(FortunesAlgorithm <PortableColor> v, int numLloydRelaxations, Random r)
{
this.r = r;
bumps = r.Next(5) + 1;
startAngle = r.NextDouble() * 2 * Math.PI;
dipAngle = r.NextDouble() * 2 * Math.PI;
dipWidth = r.NextDouble() * .5 + .2;
bounds = v.PlotBounds;
for (int i = 0; i < numLloydRelaxations; i++)
{
var points = v.GetSiteCoordinates();
for (var j = 0; j < points.Count; j++)
{
var region = v.GetRegion(points[j]);
double x = 0;
double y = 0;
foreach (var c in region)
{
x += c.X;
y += c.Y;
}
x /= region.Count;
y /= region.Count;
points[j] = new PointDouble(x, y);
}
v = new FortunesAlgorithm <PortableColor>(points, null, v.PlotBounds);
}
BuildGraph(v);
ImproveCorners();
AssignCornerElevations();
AssignOceanCoastAndLand();
RedistributeElevations(LandCorners());
AssignPolygonElevations();
CalculateDownslopes();
AssignNormals();
//calculateWatersheds();
CreateRivers();
AssignCornerMoisture();
RedistributeMoisture(LandCorners());
AssignPolygonMoisture();
AssignBiomes();
if (DrawingHook.ImageFactory != null)
{
pixelCenterMap = DrawingHook.ImageFactory.CreateBitmap32bppArgb((int)bounds.width, (int)bounds.width);
}
}
private void BuildGraph(FortunesAlgorithm <PortableColor> v)
{
var pointCenterMap = new Dictionary <PointDouble, Center>();
var points = v.GetSiteCoordinates();
points.ForEach((p) =>
{
var c = new Center();
c.loc = p;
c.index = centers.Count;
centers.Add(c);
pointCenterMap[p] = c;
});
//bug fix
centers.ForEach((c) =>
{
v.GetRegion(c.loc);
});
var libedges = v.Edges;
var pointCornerMap = new Dictionary <int, Corner>();
foreach (var libedge in libedges)
{
LineSegment vEdge = libedge.VoronoiEdge();
LineSegment dEdge = libedge.DelaunayLine();
var edge = new Edge();
edge.index = edges.Count;
edges.Add(edge);
edge.v0 = MakeCorner(pointCornerMap, vEdge.p0);
edge.v1 = MakeCorner(pointCornerMap, vEdge.p1);
edge.d0 = pointCenterMap[dEdge.p0];
edge.d1 = pointCenterMap[dEdge.p1];
// Centers point to edges. Corners point to edges.
if (edge.d0 != null)
{
edge.d0.borders.Add(edge);
}
if (edge.d1 != null)
{
edge.d1.borders.Add(edge);
}
if (edge.v0 != null)
{
edge.v0.protrudes.Add(edge);
}
if (edge.v1 != null)
{
edge.v1.protrudes.Add(edge);
}
// Centers point to centers.
if (edge.d0 != null && edge.d1 != null)
{
AddToCenterList(edge.d0.neighbors, edge.d1);
AddToCenterList(edge.d1.neighbors, edge.d0);
}
// Corners point to corners
if (edge.v0 != null && edge.v1 != null)
{
AddToCornerList(edge.v0.adjacent, edge.v1);
AddToCornerList(edge.v1.adjacent, edge.v0);
}
// Centers point to corners
if (edge.d0 != null)
{
AddToCornerList(edge.d0.corners, edge.v0);
AddToCornerList(edge.d0.corners, edge.v1);
}
if (edge.d1 != null)
{
AddToCornerList(edge.d1.corners, edge.v0);
AddToCornerList(edge.d1.corners, edge.v1);
}
// Corners point to centers
if (edge.v0 != null)
{
AddToCenterList(edge.v0.touches, edge.d0);
AddToCenterList(edge.v0.touches, edge.d1);
}
if (edge.v1 != null)
{
AddToCenterList(edge.v1.touches, edge.d0);
AddToCenterList(edge.v1.touches, edge.d1);
}
}
}
