Examples with ModifiableHyperBoundingBox de.lmu.ifi.dbs.elki.data.ModifiableHyperBoundingBox used on opensource projects

Example 16 with ModifiableHyperBoundingBox

use of de.lmu.ifi.dbs.elki.data.ModifiableHyperBoundingBox in project elki by elki-project.

the class AbstractRStarTreeNode method adjustEntry.

/**
 * Adjusts the parameters of the entry representing this node.
 *
 * @param entry the entry representing this node
 */
public boolean adjustEntry(E entry) {
    final SpatialDirectoryEntry se = (SpatialDirectoryEntry) entry;
    final ModifiableHyperBoundingBox mbr = computeMBR();
    boolean changed = false;
    if (se.hasMBR()) {
        final int dim = se.getDimensionality();
        // Test for changes
        for (int i = 0; i < dim; i++) {
            if (Math.abs(se.getMin(i) - mbr.getMin(i)) > Float.MIN_NORMAL) {
                changed = true;
                break;
            }
            if (Math.abs(se.getMax(i) - mbr.getMax(i)) > Float.MIN_NORMAL) {
                changed = true;
                break;
            }
        }
    } else {
        // No preexisting MBR.
        changed = true;
    }
    if (changed) {
        se.setMBR(mbr);
    }
    return changed;
}

Example 17 with ModifiableHyperBoundingBox

use of de.lmu.ifi.dbs.elki.data.ModifiableHyperBoundingBox in project elki by elki-project.

the class FlatRStarTree method createEmptyRoot.

@Override
protected void createEmptyRoot(SpatialEntry exampleLeaf) {
    root = createNewDirectoryNode();
    root.setPageID(getRootID());
    getFile().setNextPageID(getRootID() + 1);
    FlatRStarTreeNode leaf = createNewLeafNode();
    writeNode(leaf);
    ModifiableHyperBoundingBox mbr = new ModifiableHyperBoundingBox(new double[exampleLeaf.getDimensionality()], new double[exampleLeaf.getDimensionality()]);
    root.addDirectoryEntry(new SpatialDirectoryEntry(leaf.getPageID(), mbr));
    setHeight(2);
}