MappingBox Class

A mapping box is a box between two cross section lines. The box is split up into a number of quadrilaterals, with at least one left and one right of the river center line. The two inner most quads share the river centre line as the baseline, while more outer-laying quads share base line with the more inner quad top line.

In cases where the cross section lines intersects, the quads either becomes a triangle, or degenerates and must be discarded.

public class MappingBox