GestureDetectionApp/GestureRecognition/src/at/mus/recognition/dtw/Acceleration.java

   1 package at.mus.recognition.dtw;
   2
   3 import at.mus.recognition.ICoordinate;
   4
   5 public class Acceleration implements ICoordinate {
   6         public float x, y, z;
   7
   8         public Acceleration(float x, float y, float z) {
   9                 this.x = x;
  10                 this.y = y;
  11                 this.z = z;
  12         }
  13
  14         public Acceleration(float[] value) {
  15                 this(value[0], value[1], value[2]);
  16         }
  17
  18         /**
  19          * Returns distance between 2 vectors
  20          * @param acc
  21          * @return
  22          */
  23         @Override
  24         public float distance(ICoordinate acc) {
  25                 return (float) Math.sqrt(difference((Acceleration)acc).length());
  26         }
  27
  28         /**
  29          * Returns length of the vector
  30          * @return
  31          */
  32         public float length() {
  33                 return (float)Math.sqrt(x*x + y*y + z*z);
  34         }
  35
  36         /**
  37          * Returns difference between 2 vectors
  38          * @return
  39          */
  40         public Acceleration difference(Acceleration acc) {
  41                 return new Acceleration(x - acc.x, y - acc.y, z - acc.z);
  42         }
  43
  44         @Override
  45         public ICoordinate add(ICoordinate other) {
  46                 Acceleration acc = (Acceleration)other;
  47                 return new Acceleration(x+acc.x, y+acc.y, z+acc.z);
  48         }
  49
  50         @Override
  51         public ICoordinate divide(float f) {
  52                 return new Acceleration((float)x/f, (float)y/f, (float)z/f);
  53         }
  54
  55         @Override
  56         public float[] coords() {
  57                 return new float[] { x, y, z };
  58         }
  59
  60         @Override
  61         public void coords(float[] coords) {
  62                 x = coords[0];
  63                 y = coords[1];
  64                 z = coords[2];
  65         }
  66
  67         @Override
  68         public float getX() {
  69                 return x;
  70         }
  71
  72         @Override
  73         public float getY() {
  74                 return y;
  75         }
  76
  77         @Override
  78         public float getZ() {
  79                 return z;
  80         }
  81 }