view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Range.java @ 3928:d3e2080d3ada

S(Q) relation. Extract more values from database. flys-artifacts/trunk@5622 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 27 Sep 2012 16:31:21 +0000
parents 51f76225823b
children 048b3c3acd01
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package de.intevation.flys.artifacts.model;

import java.io.Serializable;

public class Range implements Serializable {

    public static final double EPSILON  = 1e-5;

    protected double start;
    protected double end;

    public Range() {
    }

    public Range(Range other) {
        start = other.start;
        end   = other.end;
    }

    public Range(double start, double end) {
        this.start = start;
        this.end   = end;
    }

    public double getStart() {
        return start;
    }

    public double getEnd() {
        return end;
    }

    public boolean disjoint(double ostart, double oend) {
        return start > oend || ostart > end;
    }

    public boolean disjoint(Range other) {
        return start > other.end || other.start > end;
    }

    public boolean intersects(Range other) {
        return !disjoint(other);
    }

    public void extend(Range other) {
        if (other.start < start) start = other.start;
        if (other.end   > end  ) end   = other.end;
    }

    public boolean clip(Range other) {
        if (disjoint(other)) return false;

        if (other.start > start) start = other.start;
        if (other.end   < end  ) end   = other.end;

        return true;
    }

    public boolean inside(double x) {
        return x > start-EPSILON && x < end+EPSILON;
    }
}
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