01: /***********************************************************************************************
02: * File Info: $Id: StackedDataProcessor.java,v 1.1 2003/05/17 16:57:50 nathaniel_auvil Exp $
03: * Copyright (C) 2002
04: * Author: Nathaniel G. Auvil
05: * Contributor(s):
06: *
07: * Copyright 2002 (C) Nathaniel G. Auvil. All Rights Reserved.
08: *
09: * Redistribution and use of this software and associated documentation ("Software"), with or
10: * without modification, are permitted provided that the following conditions are met:
11: *
12: * 1. Redistributions of source code must retain copyright statements and notices.
13: * Redistributions must also contain a copy of this document.
14: *
15: * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
16: * conditions and the following disclaimer in the documentation and/or other materials
17: * provided with the distribution.
18: *
19: * 3. The name "jCharts" or "Nathaniel G. Auvil" must not be used to endorse or promote
20: * products derived from this Software without prior written permission of Nathaniel G.
21: * Auvil. For written permission, please contact nathaniel_auvil@users.sourceforge.net
22: *
23: * 4. Products derived from this Software may not be called "jCharts" nor may "jCharts" appear
24: * in their names without prior written permission of Nathaniel G. Auvil. jCharts is a
25: * registered trademark of Nathaniel G. Auvil.
26: *
27: * 5. Due credit should be given to the jCharts Project (http://jcharts.sourceforge.net/).
28: *
29: * THIS SOFTWARE IS PROVIDED BY Nathaniel G. Auvil AND CONTRIBUTORS ``AS IS'' AND ANY
30: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
31: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32: * jCharts OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
33: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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37: * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
38: ************************************************************************************************/package org.krysalis.jcharts.chartData.processors;
39:
40: import org.krysalis.jcharts.chartData.interfaces.IAxisChartDataSet;
41:
42: /*********************************************************************************************
43: * Notes:
44: * 1) Stacked data cannot have any negative values. I don't think i have ever seen a
45: * stacked bar chart with negative values just as a side observation.
46: *
47: * ---->There has been one request for this though...
48: *
49: *
50: *
51: **********************************************************************************************/
52: abstract class StackedDataProcessor {
53:
54: /*******************************************************************************************
55: * <pre>This method should do a single pass through the data set and calculate all needed values,
56: * such as: min, max, sum, etc... so that we can do this in one pass through the data.
57: * Rather than once for each.</pre>
58: *
59: * @param iAxisChartDataSet
60: * @param axisChartDataProcessor
61: ********************************************************************************************/
62: public static final void processData(
63: IAxisChartDataSet iAxisChartDataSet,
64: AxisChartDataProcessor axisChartDataProcessor) {
65: double value;
66:
67: //LOOP
68: for (int i = 0; i < iAxisChartDataSet.getNumberOfDataItems(); i++) {
69: value = 0.0d;
70:
71: //LOOP
72: for (int j = 0; j < iAxisChartDataSet.getNumberOfDataSets(); j++) {
73: value += iAxisChartDataSet.getValue(j, i);
74: }
75:
76: if (value > axisChartDataProcessor.getMaxValue()) {
77: axisChartDataProcessor.setMaxValue(value);
78: }
79:
80: if (value < axisChartDataProcessor.getMinValue()) {
81: axisChartDataProcessor.setMinValue(value);
82: }
83: }
84: }
85:
86: }
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