// Left and right represent the bank A and B, respectively
public LeafPair(double left, double right,
double width, double top, Jaw jaw)
{
Position = new Rect(left, top, right, top - width);
Width = width;
Jaw = jaw;
}
private LeafPair[] CreateLeafPairs
(double[,] positions, double[] widths, Jaw jaw)
{
double[] leafTops = GetLeafTops(widths);
return((from i in Algebra.Sequence(widths.Length)
select new LeafPair(positions[0, i], positions[1, i],
widths[i], leafTops[i], jaw)).ToArray());
}
// The first dimension of leafPositions corresponds to the bank,
// and the second dimension corresponds to the leaf pair.
// Leaf coordinates follow the IEC 61217 standard:
//
// Negative Y x = isocenter (0, 0)
// -
// |
// |
// |
// Negative X |----------x----------| Positive X
// |
// |
// |
// -
// Positive Y
// leafPositions and leafWidths must not be null,
// and they must have the same number of leaves
// jaw is the position of the jaw (cannot be null), given as
// left, top, right, bottom; for a completely open jaw, use:
// new double[] { double.MinValue, double.MinValue,
// double.MaxValue, double.MaxValue };
public Aperture(double[,] leafPositions, double[] leafWidths, double[] jaw)
{
Jaw = CreateJaw(jaw);
LeafPairs = CreateLeafPairs(leafPositions, leafWidths, Jaw);
}