@Test
public void interpolationTest() {
String cell1 = "31bcb57al";
String cell2 = "31bcb57ar";
String cell3 = "31bcb57bl";
assertEquals(MyGeocellUtils.interpolationCount(cell1, cell1), 1);
assertEquals(MyGeocellUtils.interpolationCount(cell2, cell2), 1);
assertEquals(MyGeocellUtils.interpolationCount(cell2, cell1), 2);
assertEquals(MyGeocellUtils.interpolationCount(cell3, cell2), 2);
assertEquals(MyGeocellUtils.interpolationCount(cell3, cell1), 3);
int dist_vert = 6;
int dist_hor = 5;
int dist_diag = 8;
for (int i = -2; i <= 2; i++) {
for (int j = -2; j <= 2; j++) {
String neighbour;
if (Math.abs(j) == 2 || Math.abs(i) == 2) {
if (Math.abs(i) == 2 && Math.abs(j) == 2) {
neighbour = MyGeocellUtils.adjacent(cell1, new int[] {i / 2, j / 2});
neighbour = MyGeocellUtils.adjacent(neighbour, new int[] {i / 2, j / 2});
} else if (Math.abs(i) == 2) {
neighbour = MyGeocellUtils.adjacent(cell1, new int[] {i / 2, j});
neighbour = MyGeocellUtils.adjacent(neighbour, new int[] {i / 2, 0});
} else if (Math.abs(j) == 2) {
neighbour = MyGeocellUtils.adjacent(cell1, new int[] {i, j / 2});
neighbour = MyGeocellUtils.adjacent(neighbour, new int[] {0, j / 2});
} else {
System.err.println("AStar: this point should not get reached ever.");
neighbour = null;
}
} else {
neighbour = MyGeocellUtils.adjacent(cell1, new int[] {i, j});
}
int distance = 0;
if (i == 0 && j == 0) {
distance = 1;
} else if (i == 0 && Math.abs(j) != 0) {
distance = dist_vert * Math.abs(j);
} else if (j == 0 && Math.abs(i) != 0) {
distance = dist_hor * Math.abs(i);
} else if (i != 0 && Math.abs(i) == Math.abs(j)) {
distance = dist_diag * Math.abs(i);
} else if (i != 0 && j != 0 && Math.abs(i) + Math.abs(j) == 3) {
distance = dist_diag + (dist_diag / 2);
} else {
System.err.println("this should not happen");
distance = 99;
}
// System.err.println(i + "\t" + j + "\t" + distance + "\t" +
// Utils.distanceBetweenGeoCells(cell1, neighbour));
assertEquals(distance, Utils.distanceBetweenGeoCells(cell1, neighbour), 1);
}
}
}
