HpxStraddle

```
public class HpxStraddle
extends java.lang.Object
```
This class handles straddling in the Healpix projection. It is intended to handle small pixel straddling, not so much lines more than a few degrees in size. Recall the normalized version of the HEALPix projection where there are 12 unit tiles arranged so: 3 4 0 8 5 1 9 6 2 10 7 11 The top right corners of tiles 3, 0, 1 and 2 join at the north pole. The bottom left corners of tiles 8,9,10,11 join at the south pole. The line on the right edge of tile 3 is identified with the line at the top edge of tile 0 and so forth. If we simply join lines in in the projection naively the line can easily leave and re-enter the valid legion because of this jaggedness near the pole. The other straddling is similar to what we see in the Car projection since the left edge of tile 3 is identified with the right edge of tile 7 and similarly for tiles 8 and 11.

Constructors
Constructor and Description
`HpxStraddle(Hpx proj)` Create a straddler associated with the projection

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int[]`	`getStraddleStats()` Get the statistics on the kind of straddles processed by this objects as an array of {north, south, edge}
`boolean`	`segmentStraddle(double[] x1, double[] x2)` Does the line between the two points straddle?
`boolean`	`straddle(double[][] points)` Does any segment in this sequence of points stadddle.
`double[][][]`	`straddleComponents(double[][] vertices)` Given figure which may straddle, return a set of figures which do not.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Class HpxStraddle