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1
9 package org.jscience.geography.coordinates.crs;
10
11 import java.util.Collection  ;
12 import java.util.Set ;
13
14 import org.jscience.geography.coordinates.CompoundCoordinates;
15 import org.jscience.geography.coordinates.Coordinates;
16 import org.opengis.metadata.Identifier;
17 import org.opengis.referencing.cs.CoordinateSystem;
18 import org.opengis.referencing.cs.CoordinateSystemAxis;
19 import org.opengis.util.InternationalString;
20
21
28 public class CompoundCRS<C1 extends Coordinates, C2 extends Coordinates>
29 extends CoordinateReferenceSystem<CompoundCoordinates<C1, C2>> {
30
31 final CoordinateReferenceSystem<C1> _first;
32
33 final CoordinateReferenceSystem<C2> _next;
34
35 final CoordinateSystem _coordinateSystem = new CoordinateSystem() {
36
37 public int getDimension() {
38 return _first.getCoordinateSystem().getDimension() +
39 _next.getCoordinateSystem().getDimension();
40 }
41
42 public CoordinateSystemAxis getAxis(int dimension) throws IndexOutOfBoundsException {
43 int firstDimension = _first.getCoordinateSystem().getDimension();
44 return (dimension < firstDimension) ? _first.getCoordinateSystem().getAxis(dimension) :
45 _next.getCoordinateSystem().getAxis(dimension - firstDimension);
46 }
47
48 public Identifier getName() {
49 throw new UnsupportedOperationException ();
50 }
51
52 public Collection getAlias() {
53 return EMPTY_SET;
54 }
55
56 public Set getIdentifiers() {
57 return EMPTY_SET;
58 }
59
60 public InternationalString getRemarks() {
61 throw new UnsupportedOperationException ();
62 }
63
64 public String toWKT() throws UnsupportedOperationException {
65 throw new UnsupportedOperationException ();
66 }};
67
68
69 public CompoundCRS(CoordinateReferenceSystem<C1> first, CoordinateReferenceSystem<C2> next) {
70 _first = first;
71 _next = next;
72 }
73
74 @Override
75 protected CompoundCoordinates<C1, C2> coordinatesOf(AbsolutePosition position) {
76 C1 c1 = _first.coordinatesOf(position);
77 C2 c2 = _next.coordinatesOf(position);
78 return new CompoundCoordinates<C1, C2>(c1, c2);
79 }
80
81 @Override
82 protected AbsolutePosition positionOf(CompoundCoordinates<C1, C2> coordinates, AbsolutePosition position) {
83 AbsolutePosition firstPosition = _first.positionOf(coordinates.getFirst(), position);
84 return _next.positionOf(coordinates.getNext(), firstPosition);
85 }
86
87 @Override
88 public CoordinateSystem getCoordinateSystem() {
89 return _coordinateSystem;
90 }
91
92 } |
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