com.jennifer.ui.util.scale.OrdinalScale.java Source code

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Here is the source code for com.jennifer.ui.util.scale.OrdinalScale.java

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/*
 * Copyright (C) 2014 (JenniferSoft Inc.)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.jennifer.ui.util.scale;

import org.json.JSONArray;

/**
 * Created by Jayden on 2014-10-24.
 */
public class OrdinalScale extends AbstractScale {

    public OrdinalScale() {
        super();
    }

    public OrdinalScale(JSONArray domain, JSONArray range) {
        super(domain, range);
    }

    public double get(String x) {
        int index = -1;

        JSONArray domain = domain();

        for (int i = 0, len = domain.length(); i < len; i++) {
            if (x.equals(domain.getString(i))) {
                index = i;
                break;
            }
        }

        if (index > -1) {
            return range().getDouble(index);
        } else {
            return -1;
        }
    }

    public double get(double x) {
        return range().getDouble((int) x);
    }

    public Scale rangePoints(JSONArray interval, int padding) {

        JSONArray domain = domain();
        JSONArray range = new JSONArray();

        double start = interval.getDouble(0);
        double end = interval.getDouble(1);

        int step = domain.length();
        double unit = (end - start - padding) / step;

        for (int i = 0, len = domain.length(); i < len; i++) {
            if (i == 0) {
                range.put(Double.valueOf(start + padding / 2 + unit / 2));
            } else {
                range.put(range.getDouble(i - 1) + unit);
            }
        }

        this.range(range);
        _rangeBand = unit;
        return this;
    }

    public Scale rangeBands(JSONArray interval, int padding, int outerPadding) {

        JSONArray domain = domain();
        JSONArray range = new JSONArray();

        int count = domain.length();
        int step = count - 1;

        double start = interval.getDouble(0);
        double end = interval.getDouble(1);

        double band = (end - start) / step;

        for (int i = 0, len = domain.length(); i < len; i++) {
            if (i == 0) {
                range.put(start);
            } else {
                range.put(band + range.getDouble(i - 1));
            }
        }

        this.range(range);
        _rangeBand = band;

        return this;
    }

}