@Override public double minDist(SpatialComparable mbr1, SpatialComparable mbr2) { if (mbr1.getDimensionality() != mbr2.getDimensionality()) { throw new IllegalArgumentException( "Different dimensionality of objects\n " + "first argument: " + mbr1.toString() + "\n " + "second argument: " + mbr2.toString()); } double agg = 0.; for (int d = BitsUtil.nextSetBit(dimensions, 0); d >= 0; d = BitsUtil.nextSetBit(dimensions, d + 1)) { final double max1 = mbr1.getMax(d); final double min2 = mbr2.getMin(d); if (max1 < min2) { double v = min2 - max1; if (v > agg) { agg = v; } } else { final double min1 = mbr1.getMin(d); final double max2 = mbr2.getMax(d); double v = min1 - max2; if (v > agg) { agg = v; } } } return agg; }
@Override protected double minDistObject(SpatialComparable mbr, NumberVector v) { if (mbr.getDimensionality() != v.getDimensionality()) { throw new IllegalArgumentException( "Different dimensionality of objects\n " + "first argument: " + mbr.toString() + "\n " + "second argument: " + v.toString()); } double agg = 0.; for (int d = BitsUtil.nextSetBit(dimensions, 0); d >= 0; d = BitsUtil.nextSetBit(dimensions, d + 1)) { final double value = v.doubleValue(d); final double omin = mbr.getMin(d); final double diff1 = omin - value; if (diff1 > 0.) { if (diff1 > agg) { agg = diff1; } } else { final double omax = mbr.getMax(d); final double diff2 = value - omax; if (diff2 > agg) { agg = diff2; } } } return agg; }
/** * Constructor, cloning an existing spatial object. * * @param other Object to clone */ public HyperBoundingBox(SpatialComparable other) { final int dim = other.getDimensionality(); this.min = new double[dim]; this.max = new double[dim]; for (int i = 0; i < dim; i++) { this.min[i] = other.getMin(i); this.max[i] = other.getMax(i); } }
@Override public double minDist(SpatialComparable mbr1, SpatialComparable mbr2) { if (dim >= mbr1.getDimensionality() || dim >= mbr2.getDimensionality() || dim < 0) { throw new IllegalArgumentException( "Specified dimension to be considered " + "is larger that dimensionality of FeatureVectors:" + "\n first argument: " + mbr1.toString() + "\n second argument: " + mbr2.toString() + "\n dimension: " + dim); } final double max1 = mbr1.getMax(dim), min2 = mbr2.getMin(dim); if (max1 < min2) { return min2 - max1; } final double min1 = mbr1.getMin(dim), max2 = mbr2.getMax(dim); if (min1 > max2) { return min1 - max2; } return 0; }
public static List<double[]> getCorners(SpatialComparable box) { ArrayList<double[]> corners = new ArrayList<double[]>(); if (SpatialUtil.perimeter(box) == 0) { corners.add(SpatialUtil.getMin(box)); return corners; } boolean[] current = new boolean[box.getDimensionality()]; int dim = box.getDimensionality(); for (int i = 0; i < Math.pow(2, dim); i++) { double[] newCorner = new double[dim]; for (int j = 0; j < dim; j++) { if (current[j]) newCorner[j] = box.getMin(j); else newCorner[j] = box.getMax(j); } addOne(current); corners.add(newCorner); } return corners; }