/*
This example shows how three different distance metrics calculate the same three points.
Euclidean Distance
pos1->pos2: 5.20
pos2->pos3: 5.20
pos3->pos1: 10.39
Manhattan Distance
pos1->pos2: 9.00
pos2->pos3: 9.00
pos3->pos1: 18.00
Chebyshev Distance
pos1->pos2: 3.00
pos2->pos3: 3.00
pos3->pos1: 6.00
*/
void ExampleDistance(int argIndex, int argc, char **argv) {
double pos1[3] = { 1.0, 2.0, 3.0 };
double pos2[3] = { 4.0, 5.0, 6.0 };
double pos3[3] = { 7.0, 8.0, 9.0 };
printf("Euclidean Distance\n");
printf("pos1->pos2: %.2f\n", DistanceEuclidean(pos1,0,pos2,0,3));
printf("pos2->pos3: %.2f\n", DistanceEuclidean(pos2,0,pos3,0,3));
printf("pos3->pos1: %.2f\n", DistanceEuclidean(pos3,0,pos1,0,3));
printf("\nManhattan Distance\n");
printf("pos1->pos2: %.2f\n", DistanceManhattan(pos1,0,pos2,0,3));
printf("pos2->pos3: %.2f\n", DistanceManhattan(pos2,0,pos3,0,3));
printf("pos3->pos1: %.2f\n", DistanceManhattan(pos3,0,pos1,0,3));
printf("\nChebyshev Distance\n");
printf("pos1->pos2: %.2f\n", DistanceChebyshev(pos1,0,pos2,0,3));
printf("pos2->pos3: %.2f\n", DistanceChebyshev(pos2,0,pos3,0,3));
printf("pos3->pos1: %.2f\n", DistanceChebyshev(pos3,0,pos1,0,3));
}
/**
* Calculate distance (using correct metric) between 2 points.
*
* @param $Ncoords = number of coordinates for each point.
* @param $points1 = coordinates of first point.
* @param $points2 = coordinates of second point.
* @param $parameters $parameters[0] is the diameter of the disk under
* consideration.
* @return The distance between the two points.
*/
double DiskDistanceMetric(int Ncoords, double *point1, double* point2,
double* parameters)
{
return DistanceEuclidean(Ncoords, point1, point2);
}