private float ComputeCoverage(TAMImageDiagram diagram, TAMMipmapLevel mipmapLevel)
{
var areaSum = 0.0;
for (int i = 0; i < diagram.Strokes.Count; i++)
{
var currentStroke = diagram.Strokes[i];
var baseArea = Mathf.PI * Mathf.Pow(currentStroke.Length, 2) * 0.2; //todo
for (int k = 0; k < i; k++)
{
var otherStroke = diagram.Strokes[k];
var intersectionArea =
MyMathUtils.IntersectionAreaOfTwoCircles(currentStroke.Length, currentStroke.Center, otherStroke.Length, otherStroke.Center);
baseArea -= intersectionArea;
}
areaSum += Math.Max(0.001f, baseArea); //todo what to do with other mipmapLevels
}
return((float)areaSum);
}
private RankedPossibleStroke RankStroke(TAMStroke newStroke, TAMImageDiagram diagram)
{
// rank the bigger, the better
var distanceSum = 0f;
var intersectionArea = 0f;
foreach (var stroke in diagram.Strokes)
{
var intersection = MyMathUtils.IntersectionAreaOfTwoCircles(newStroke.Length, newStroke.Center, stroke.Length, stroke.Center);
intersectionArea += intersection;
distanceSum += Vector2.Distance(newStroke.Center, stroke.Center);
}
var intersectionPercent = intersectionArea / (Math.PI * Math.Pow(newStroke.Length, 2));
var rank = Mathf.Pow(distanceSum, (float)(2 - intersectionPercent));
return(new RankedPossibleStroke()
{
Rank = rank,
Stroke = newStroke
});
}