private static float EstimateError(Layer batch, IGeometry geometry, BoundingRectangle screenSpaceBounds)
{
float totalError = 0;
foreach (var bound in batch.Overlaps(screenSpaceBounds))
{
var overlap = bound.Intersection(screenSpaceBounds);
if (!overlap.HasValue)
continue;
var size = overlap.Value.Max - overlap.Value.Min;
totalError += size.X * size.Y;
}
return totalError;
}