internal Bitmap DrawSnapshot(int[] intensities)
{
Bitmap bitmap = new Bitmap(Resolution, Resolution);
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.Clear(Color.DarkBlue);
for (int i = 0; i < shapes.Count; i++)
{
EyeWebShape shape = shapes[i];
int tint = intensities[i];
if (tint < 0)
{
tint = 0;
}
if (tint > 255)
{
tint = 255;
}
using (Brush brush = new SolidBrush(Color.FromArgb(tint, tint, tint)))
graphics.FillPolygon(brush, shape.targetPoints);
}
}
return(bitmap);
}
public EyeWeb(int subsectionsPerTone = 1, float powerBase = 1.8f, float centerSubstract = 0.5f, int resolution = 512)
{
this.Resolution = resolution;
double toneWidth = 1.0 / subsectionsPerTone;
for (int i = 0; i < 84; i++)
{
for (int j = 0; j < subsectionsPerTone; j++)
{
EyeWebShape shape = new EyeWebShape(i + j * toneWidth, toneWidth, powerBase, centerSubstract);
shapes.Add(shape);
foreach (EyeWebCoordinate coordinate in shape.coordinates)
{
if (Math.Abs(coordinate.x) > extent)
{
extent = Math.Abs(coordinate.x);
}
if (Math.Abs(coordinate.y) > extent)
{
extent = Math.Abs(coordinate.y);
}
}
}
}
foreach (EyeWebShape shape in shapes)
{
shape.BuildTargetPoints(extent, Resolution);
}
//Generating PointShapeIndex.
int squareSize = resolution * resolution;
PointShapeIndex = new int[squareSize];
for (int i = 0; i < squareSize; i++)
{
PointShapeIndex[i] = -1;
}
PointShapeIndexCounter = new int[shapes.Count];
int halfResolution = resolution / 2;
List <Polygon> polygons = new List <Polygon>();
for (int i = 0; i < shapes.Count; i++)
{
polygons.Add(new Polygon(GetPoints(i, resolution, halfResolution, halfResolution)));
}
for (int y = 0; y < resolution; y++)
{
for (int x = 0; x < resolution; x++)
{
for (int shapeIndex = shapes.Count - 1; shapeIndex >= 0; shapeIndex--)
{
if (polygons[shapeIndex].IsInside(x, y))
{
int index = y * resolution + x;
PointShapeIndex[index] = shapeIndex;
PointShapeIndexCounter[shapeIndex]++;
break;
}
}
}
}
}