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- <pre><span class="sourceLineNo">001</span>/* ===========================================================<a name="line.1"></a>
- <span class="sourceLineNo">002</span> * JFreeChart : a free chart library for the Java(tm) platform<a name="line.2"></a>
- <span class="sourceLineNo">003</span> * ===========================================================<a name="line.3"></a>
- <span class="sourceLineNo">004</span> *<a name="line.4"></a>
- <span class="sourceLineNo">005</span> * (C) Copyright 2000-2014, by Object Refinery Limited and Contributors.<a name="line.5"></a>
- <span class="sourceLineNo">006</span> *<a name="line.6"></a>
- <span class="sourceLineNo">007</span> * Project Info: http://www.jfree.org/jfreechart/index.html<a name="line.7"></a>
- <span class="sourceLineNo">008</span> *<a name="line.8"></a>
- <span class="sourceLineNo">009</span> * This library is free software; you can redistribute it and/or modify it<a name="line.9"></a>
- <span class="sourceLineNo">010</span> * under the terms of the GNU Lesser General Public License as published by<a name="line.10"></a>
- <span class="sourceLineNo">011</span> * the Free Software Foundation; either version 2.1 of the License, or<a name="line.11"></a>
- <span class="sourceLineNo">012</span> * (at your option) any later version.<a name="line.12"></a>
- <span class="sourceLineNo">013</span> *<a name="line.13"></a>
- <span class="sourceLineNo">014</span> * This library is distributed in the hope that it will be useful, but<a name="line.14"></a>
- <span class="sourceLineNo">015</span> * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY<a name="line.15"></a>
- <span class="sourceLineNo">016</span> * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public<a name="line.16"></a>
- <span class="sourceLineNo">017</span> * License for more details.<a name="line.17"></a>
- <span class="sourceLineNo">018</span> *<a name="line.18"></a>
- <span class="sourceLineNo">019</span> * You should have received a copy of the GNU Lesser General Public<a name="line.19"></a>
- <span class="sourceLineNo">020</span> * License along with this library; if not, write to the Free Software<a name="line.20"></a>
- <span class="sourceLineNo">021</span> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,<a name="line.21"></a>
- <span class="sourceLineNo">022</span> * USA.<a name="line.22"></a>
- <span class="sourceLineNo">023</span> *<a name="line.23"></a>
- <span class="sourceLineNo">024</span> * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. <a name="line.24"></a>
- <span class="sourceLineNo">025</span> * Other names may be trademarks of their respective owners.]<a name="line.25"></a>
- <span class="sourceLineNo">026</span> *<a name="line.26"></a>
- <span class="sourceLineNo">027</span> * --------------------<a name="line.27"></a>
- <span class="sourceLineNo">028</span> * LogarithmicAxis.java<a name="line.28"></a>
- <span class="sourceLineNo">029</span> * --------------------<a name="line.29"></a>
- <span class="sourceLineNo">030</span> * (C) Copyright 2000-2014, by Object Refinery Limited and Contributors.<a name="line.30"></a>
- <span class="sourceLineNo">031</span> *<a name="line.31"></a>
- <span class="sourceLineNo">032</span> * Original Author: Michael Duffy / Eric Thomas;<a name="line.32"></a>
- <span class="sourceLineNo">033</span> * Contributor(s): David Gilbert (for Object Refinery Limited);<a name="line.33"></a>
- <span class="sourceLineNo">034</span> * David M. O'Donnell;<a name="line.34"></a>
- <span class="sourceLineNo">035</span> * Scott Sams;<a name="line.35"></a>
- <span class="sourceLineNo">036</span> * Sergei Ivanov;<a name="line.36"></a>
- <span class="sourceLineNo">037</span> *<a name="line.37"></a>
- <span class="sourceLineNo">038</span> * Changes<a name="line.38"></a>
- <span class="sourceLineNo">039</span> * -------<a name="line.39"></a>
- <span class="sourceLineNo">040</span> * 14-Mar-2002 : Version 1 contributed by Michael Duffy (DG);<a name="line.40"></a>
- <span class="sourceLineNo">041</span> * 19-Apr-2002 : drawVerticalString() is now drawRotatedString() in<a name="line.41"></a>
- <span class="sourceLineNo">042</span> * RefineryUtilities (DG);<a name="line.42"></a>
- <span class="sourceLineNo">043</span> * 23-Apr-2002 : Added a range property (DG);<a name="line.43"></a>
- <span class="sourceLineNo">044</span> * 15-May-2002 : Modified to be able to deal with negative and zero values (via<a name="line.44"></a>
- <span class="sourceLineNo">045</span> * new 'adjustedLog10()' method); occurrences of "Math.log(10)"<a name="line.45"></a>
- <span class="sourceLineNo">046</span> * changed to "LOG10_VALUE"; changed 'intValue()' to<a name="line.46"></a>
- <span class="sourceLineNo">047</span> * 'longValue()' in 'refreshTicks()' to fix label-text value<a name="line.47"></a>
- <span class="sourceLineNo">048</span> * out-of-range problem; removed 'draw()' method; added<a name="line.48"></a>
- <span class="sourceLineNo">049</span> * 'autoRangeMinimumSize' check; added 'log10TickLabelsFlag'<a name="line.49"></a>
- <span class="sourceLineNo">050</span> * parameter flag and implementation (ET);<a name="line.50"></a>
- <span class="sourceLineNo">051</span> * 25-Jun-2002 : Removed redundant import (DG);<a name="line.51"></a>
- <span class="sourceLineNo">052</span> * 25-Jul-2002 : Changed order of parameters in ValueAxis constructor (DG);<a name="line.52"></a>
- <span class="sourceLineNo">053</span> * 16-Jul-2002 : Implemented support for plotting positive values arbitrarily<a name="line.53"></a>
- <span class="sourceLineNo">054</span> * close to zero (added 'allowNegativesFlag' flag) (ET).<a name="line.54"></a>
- <span class="sourceLineNo">055</span> * 05-Sep-2002 : Updated constructor reflecting changes in the Axis class (DG);<a name="line.55"></a>
- <span class="sourceLineNo">056</span> * 02-Oct-2002 : Fixed errors reported by Checkstyle (DG);<a name="line.56"></a>
- <span class="sourceLineNo">057</span> * 08-Nov-2002 : Moved to new package com.jrefinery.chart.axis (DG);<a name="line.57"></a>
- <span class="sourceLineNo">058</span> * 22-Nov-2002 : Bug fixes from David M. O'Donnell (DG);<a name="line.58"></a>
- <span class="sourceLineNo">059</span> * 14-Jan-2003 : Changed autoRangeMinimumSize from Number --> double (DG);<a name="line.59"></a>
- <span class="sourceLineNo">060</span> * 20-Jan-2003 : Removed unnecessary constructors (DG);<a name="line.60"></a>
- <span class="sourceLineNo">061</span> * 26-Mar-2003 : Implemented Serializable (DG);<a name="line.61"></a>
- <span class="sourceLineNo">062</span> * 08-May-2003 : Fixed plotting of datasets with lower==upper bounds when<a name="line.62"></a>
- <span class="sourceLineNo">063</span> * 'minAutoRange' is very small; added 'strictValuesFlag'<a name="line.63"></a>
- <span class="sourceLineNo">064</span> * and default functionality of throwing a runtime exception<a name="line.64"></a>
- <span class="sourceLineNo">065</span> * if 'allowNegativesFlag' is false and any values are less<a name="line.65"></a>
- <span class="sourceLineNo">066</span> * than or equal to zero; added 'expTickLabelsFlag' and<a name="line.66"></a>
- <span class="sourceLineNo">067</span> * changed to use "1e#"-style tick labels by default<a name="line.67"></a>
- <span class="sourceLineNo">068</span> * ("10^n"-style tick labels still supported via 'set'<a name="line.68"></a>
- <span class="sourceLineNo">069</span> * method); improved generation of tick labels when range of<a name="line.69"></a>
- <span class="sourceLineNo">070</span> * values is small; changed to use 'NumberFormat.getInstance()'<a name="line.70"></a>
- <span class="sourceLineNo">071</span> * to create 'numberFormatterObj' (ET);<a name="line.71"></a>
- <span class="sourceLineNo">072</span> * 14-May-2003 : Merged HorizontalLogarithmicAxis and<a name="line.72"></a>
- <span class="sourceLineNo">073</span> * VerticalLogarithmicAxis (DG);<a name="line.73"></a>
- <span class="sourceLineNo">074</span> * 29-Oct-2003 : Added workaround for font alignment in PDF output (DG);<a name="line.74"></a>
- <span class="sourceLineNo">075</span> * 07-Nov-2003 : Modified to use new NumberTick class (DG);<a name="line.75"></a>
- <span class="sourceLineNo">076</span> * 08-Apr-2004 : Use numberFormatOverride if set - see patch 930139 (DG);<a name="line.76"></a>
- <span class="sourceLineNo">077</span> * 11-Jan-2005 : Removed deprecated code in preparation for 1.0.0 release (DG);<a name="line.77"></a>
- <span class="sourceLineNo">078</span> * 21-Apr-2005 : Added support for upper and lower margins; added<a name="line.78"></a>
- <span class="sourceLineNo">079</span> * get/setAutoRangeNextLogFlag() methods and changed<a name="line.79"></a>
- <span class="sourceLineNo">080</span> * default to 'autoRangeNextLogFlag'==false (ET);<a name="line.80"></a>
- <span class="sourceLineNo">081</span> * 22-Apr-2005 : Removed refreshTicks() and fixed names and parameters for<a name="line.81"></a>
- <span class="sourceLineNo">082</span> * refreshHorizontalTicks() & refreshVerticalTicks();<a name="line.82"></a>
- <span class="sourceLineNo">083</span> * changed javadoc on setExpTickLabelsFlag() to specify<a name="line.83"></a>
- <span class="sourceLineNo">084</span> * proper default (ET);<a name="line.84"></a>
- <span class="sourceLineNo">085</span> * 22-Apr-2005 : Renamed refreshHorizontalTicks --> refreshTicksHorizontal<a name="line.85"></a>
- <span class="sourceLineNo">086</span> * (and likewise the vertical version) for consistency with<a name="line.86"></a>
- <span class="sourceLineNo">087</span> * other axis classes (DG);<a name="line.87"></a>
- <span class="sourceLineNo">088</span> * ------------- JFREECHART 1.0.x ---------------------------------------------<a name="line.88"></a>
- <span class="sourceLineNo">089</span> * 02-Feb-2007 : Removed author tags all over JFreeChart sources (DG);<a name="line.89"></a>
- <span class="sourceLineNo">090</span> * 02-Mar-2007 : Applied patch 1671069 to fix zooming (DG);<a name="line.90"></a>
- <span class="sourceLineNo">091</span> * 22-Mar-2007 : Use new defaultAutoRange attribute (DG);<a name="line.91"></a>
- <span class="sourceLineNo">092</span> *<a name="line.92"></a>
- <span class="sourceLineNo">093</span> */<a name="line.93"></a>
- <span class="sourceLineNo">094</span><a name="line.94"></a>
- <span class="sourceLineNo">095</span>package org.jfree.chart.axis;<a name="line.95"></a>
- <span class="sourceLineNo">096</span><a name="line.96"></a>
- <span class="sourceLineNo">097</span>import java.awt.Graphics2D;<a name="line.97"></a>
- <span class="sourceLineNo">098</span>import java.awt.geom.Rectangle2D;<a name="line.98"></a>
- <span class="sourceLineNo">099</span>import java.text.DecimalFormat;<a name="line.99"></a>
- <span class="sourceLineNo">100</span>import java.text.NumberFormat;<a name="line.100"></a>
- <span class="sourceLineNo">101</span>import java.util.List;<a name="line.101"></a>
- <span class="sourceLineNo">102</span><a name="line.102"></a>
- <span class="sourceLineNo">103</span>import org.jfree.chart.plot.Plot;<a name="line.103"></a>
- <span class="sourceLineNo">104</span>import org.jfree.chart.plot.ValueAxisPlot;<a name="line.104"></a>
- <span class="sourceLineNo">105</span>import org.jfree.data.Range;<a name="line.105"></a>
- <span class="sourceLineNo">106</span>import org.jfree.ui.RectangleEdge;<a name="line.106"></a>
- <span class="sourceLineNo">107</span>import org.jfree.ui.TextAnchor;<a name="line.107"></a>
- <span class="sourceLineNo">108</span><a name="line.108"></a>
- <span class="sourceLineNo">109</span>/**<a name="line.109"></a>
- <span class="sourceLineNo">110</span> * A numerical axis that uses a logarithmic scale.<a name="line.110"></a>
- <span class="sourceLineNo">111</span> */<a name="line.111"></a>
- <span class="sourceLineNo">112</span>public class LogarithmicAxis extends NumberAxis {<a name="line.112"></a>
- <span class="sourceLineNo">113</span><a name="line.113"></a>
- <span class="sourceLineNo">114</span> /** For serialization. */<a name="line.114"></a>
- <span class="sourceLineNo">115</span> private static final long serialVersionUID = 2502918599004103054L;<a name="line.115"></a>
- <span class="sourceLineNo">116</span><a name="line.116"></a>
- <span class="sourceLineNo">117</span> /** Useful constant for log(10). */<a name="line.117"></a>
- <span class="sourceLineNo">118</span> public static final double LOG10_VALUE = Math.log(10.0);<a name="line.118"></a>
- <span class="sourceLineNo">119</span><a name="line.119"></a>
- <span class="sourceLineNo">120</span> /** Smallest arbitrarily-close-to-zero value allowed. */<a name="line.120"></a>
- <span class="sourceLineNo">121</span> public static final double SMALL_LOG_VALUE = 1e-100;<a name="line.121"></a>
- <span class="sourceLineNo">122</span><a name="line.122"></a>
- <span class="sourceLineNo">123</span> /** Flag set true to allow negative values in data. */<a name="line.123"></a>
- <span class="sourceLineNo">124</span> protected boolean allowNegativesFlag = false;<a name="line.124"></a>
- <span class="sourceLineNo">125</span><a name="line.125"></a>
- <span class="sourceLineNo">126</span> /**<a name="line.126"></a>
- <span class="sourceLineNo">127</span> * Flag set true make axis throw exception if any values are &lt;= 0 and <a name="line.127"></a>
- <span class="sourceLineNo">128</span> * 'allowNegativesFlag' is false.<a name="line.128"></a>
- <span class="sourceLineNo">129</span> */<a name="line.129"></a>
- <span class="sourceLineNo">130</span> protected boolean strictValuesFlag = true;<a name="line.130"></a>
- <span class="sourceLineNo">131</span><a name="line.131"></a>
- <span class="sourceLineNo">132</span> /** Number formatter for generating numeric strings. */<a name="line.132"></a>
- <span class="sourceLineNo">133</span> protected final NumberFormat numberFormatterObj<a name="line.133"></a>
- <span class="sourceLineNo">134</span> = NumberFormat.getInstance();<a name="line.134"></a>
- <span class="sourceLineNo">135</span><a name="line.135"></a>
- <span class="sourceLineNo">136</span> /** Flag set true for "1e#"-style tick labels. */<a name="line.136"></a>
- <span class="sourceLineNo">137</span> protected boolean expTickLabelsFlag = false;<a name="line.137"></a>
- <span class="sourceLineNo">138</span><a name="line.138"></a>
- <span class="sourceLineNo">139</span> /** Flag set true for "10^n"-style tick labels. */<a name="line.139"></a>
- <span class="sourceLineNo">140</span> protected boolean log10TickLabelsFlag = false;<a name="line.140"></a>
- <span class="sourceLineNo">141</span><a name="line.141"></a>
- <span class="sourceLineNo">142</span> /** True to make 'autoAdjustRange()' select "10^n" values. */<a name="line.142"></a>
- <span class="sourceLineNo">143</span> protected boolean autoRangeNextLogFlag = false;<a name="line.143"></a>
- <span class="sourceLineNo">144</span><a name="line.144"></a>
- <span class="sourceLineNo">145</span> /** Helper flag for log axis processing. */<a name="line.145"></a>
- <span class="sourceLineNo">146</span> protected boolean smallLogFlag = false;<a name="line.146"></a>
- <span class="sourceLineNo">147</span><a name="line.147"></a>
- <span class="sourceLineNo">148</span> /**<a name="line.148"></a>
- <span class="sourceLineNo">149</span> * Creates a new axis.<a name="line.149"></a>
- <span class="sourceLineNo">150</span> *<a name="line.150"></a>
- <span class="sourceLineNo">151</span> * @param label the axis label.<a name="line.151"></a>
- <span class="sourceLineNo">152</span> */<a name="line.152"></a>
- <span class="sourceLineNo">153</span> public LogarithmicAxis(String label) {<a name="line.153"></a>
- <span class="sourceLineNo">154</span> super(label);<a name="line.154"></a>
- <span class="sourceLineNo">155</span> setupNumberFmtObj(); //setup number formatter obj<a name="line.155"></a>
- <span class="sourceLineNo">156</span> }<a name="line.156"></a>
- <span class="sourceLineNo">157</span><a name="line.157"></a>
- <span class="sourceLineNo">158</span> /**<a name="line.158"></a>
- <span class="sourceLineNo">159</span> * Sets the 'allowNegativesFlag' flag; true to allow negative values<a name="line.159"></a>
- <span class="sourceLineNo">160</span> * in data, false to be able to plot positive values arbitrarily close to<a name="line.160"></a>
- <span class="sourceLineNo">161</span> * zero.<a name="line.161"></a>
- <span class="sourceLineNo">162</span> *<a name="line.162"></a>
- <span class="sourceLineNo">163</span> * @param flgVal the new value of the flag.<a name="line.163"></a>
- <span class="sourceLineNo">164</span> */<a name="line.164"></a>
- <span class="sourceLineNo">165</span> public void setAllowNegativesFlag(boolean flgVal) {<a name="line.165"></a>
- <span class="sourceLineNo">166</span> this.allowNegativesFlag = flgVal;<a name="line.166"></a>
- <span class="sourceLineNo">167</span> }<a name="line.167"></a>
- <span class="sourceLineNo">168</span><a name="line.168"></a>
- <span class="sourceLineNo">169</span> /**<a name="line.169"></a>
- <span class="sourceLineNo">170</span> * Returns the 'allowNegativesFlag' flag; true to allow negative values<a name="line.170"></a>
- <span class="sourceLineNo">171</span> * in data, false to be able to plot positive values arbitrarily close<a name="line.171"></a>
- <span class="sourceLineNo">172</span> * to zero.<a name="line.172"></a>
- <span class="sourceLineNo">173</span> *<a name="line.173"></a>
- <span class="sourceLineNo">174</span> * @return The flag.<a name="line.174"></a>
- <span class="sourceLineNo">175</span> */<a name="line.175"></a>
- <span class="sourceLineNo">176</span> public boolean getAllowNegativesFlag() {<a name="line.176"></a>
- <span class="sourceLineNo">177</span> return this.allowNegativesFlag;<a name="line.177"></a>
- <span class="sourceLineNo">178</span> }<a name="line.178"></a>
- <span class="sourceLineNo">179</span><a name="line.179"></a>
- <span class="sourceLineNo">180</span> /**<a name="line.180"></a>
- <span class="sourceLineNo">181</span> * Sets the 'strictValuesFlag' flag; if true and 'allowNegativesFlag'<a name="line.181"></a>
- <span class="sourceLineNo">182</span> * is false then this axis will throw a runtime exception if any of its<a name="line.182"></a>
- <span class="sourceLineNo">183</span> * values are less than or equal to zero; if false then the axis will<a name="line.183"></a>
- <span class="sourceLineNo">184</span> * adjust for values less than or equal to zero as needed.<a name="line.184"></a>
- <span class="sourceLineNo">185</span> *<a name="line.185"></a>
- <span class="sourceLineNo">186</span> * @param flgVal true for strict enforcement.<a name="line.186"></a>
- <span class="sourceLineNo">187</span> */<a name="line.187"></a>
- <span class="sourceLineNo">188</span> public void setStrictValuesFlag(boolean flgVal) {<a name="line.188"></a>
- <span class="sourceLineNo">189</span> this.strictValuesFlag = flgVal;<a name="line.189"></a>
- <span class="sourceLineNo">190</span> }<a name="line.190"></a>
- <span class="sourceLineNo">191</span><a name="line.191"></a>
- <span class="sourceLineNo">192</span> /**<a name="line.192"></a>
- <span class="sourceLineNo">193</span> * Returns the 'strictValuesFlag' flag; if true and 'allowNegativesFlag'<a name="line.193"></a>
- <span class="sourceLineNo">194</span> * is false then this axis will throw a runtime exception if any of its<a name="line.194"></a>
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- <span class="sourceLineNo">303</span> ((DecimalFormat) this.numberFormatterObj).applyPattern(<a name="line.303"></a>
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- <span class="sourceLineNo">309</span> * Returns the log10 value, depending on if values between 0 and<a name="line.309"></a>
- <span class="sourceLineNo">310</span> * 1 are being plotted. If negative values are not allowed and<a name="line.310"></a>
- <span class="sourceLineNo">311</span> * the lower bound is between 0 and 10 then a normal log is<a name="line.311"></a>
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- <span class="sourceLineNo">328</span> * 1 are being plotted. If negative values are not allowed and<a name="line.328"></a>
- <span class="sourceLineNo">329</span> * the lower bound is between 0 and 10 then a normal power is<a name="line.329"></a>
- <span class="sourceLineNo">330</span> * returned; otherwise the returned value is adjusted if the<a name="line.330"></a>
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- <span class="sourceLineNo">332</span> *<a name="line.332"></a>
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- <span class="sourceLineNo">345</span> * Returns an adjusted log10 value for graphing purposes. The first<a name="line.345"></a>
- <span class="sourceLineNo">346</span> * adjustment is that negative values are changed to positive during<a name="line.346"></a>
- <span class="sourceLineNo">347</span> * the calculations, and then the answer is negated at the end. The<a name="line.347"></a>
- <span class="sourceLineNo">348</span> * second is that, for values less than 10, an increasingly large<a name="line.348"></a>
- <span class="sourceLineNo">349</span> * (0 to 1) scaling factor is added such that at 0 the value is<a name="line.349"></a>
- <span class="sourceLineNo">350</span> * adjusted to 1, resulting in a returned result of 0.<a name="line.350"></a>
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- <span class="sourceLineNo">373</span> * adjustment is that negative values are changed to positive during<a name="line.373"></a>
- <span class="sourceLineNo">374</span> * the calculations, and then the answer is negated at the end. The<a name="line.374"></a>
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- <span class="sourceLineNo">376</span> * offset is subtracted such that at 0 the returned result is also 0.<a name="line.376"></a>
- <span class="sourceLineNo">377</span> *<a name="line.377"></a>
- <span class="sourceLineNo">378</span> * @param val value for which power of 10 should be calculated.<a name="line.378"></a>
- <span class="sourceLineNo">379</span> *<a name="line.379"></a>
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- <span class="sourceLineNo">465</span> if (upper > 10.0) {<a name="line.465"></a>
- <span class="sourceLineNo">466</span> //parameter value is > 10<a name="line.466"></a>
- <span class="sourceLineNo">467</span> // The Math.log() function is based on e not 10.<a name="line.467"></a>
- <span class="sourceLineNo">468</span> logCeil = Math.log(upper) / LOG10_VALUE;<a name="line.468"></a>
- <span class="sourceLineNo">469</span> logCeil = Math.ceil(logCeil);<a name="line.469"></a>
- <span class="sourceLineNo">470</span> logCeil = Math.pow(10, logCeil);<a name="line.470"></a>
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- <span class="sourceLineNo">473</span> //parameter value is < -10<a name="line.473"></a>
- <span class="sourceLineNo">474</span> //calculate log using positive value:<a name="line.474"></a>
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- <span class="sourceLineNo">477</span> logCeil = Math.ceil(-logCeil);<a name="line.477"></a>
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- <span class="sourceLineNo">479</span> logCeil = -Math.pow(10, -logCeil);<a name="line.479"></a>
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- <span class="sourceLineNo">490</span> // The Math.log() function is based on e not 10.<a name="line.490"></a>
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- <span class="sourceLineNo">493</span> logCeil = Math.pow(10, logCeil);<a name="line.493"></a>
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- <span class="sourceLineNo">538</span> //lower bound and margin OK; get log10 of lower bound<a name="line.538"></a>
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- <span class="sourceLineNo">550</span> lower = computeLogFloor(lower);<a name="line.550"></a>
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- <span class="sourceLineNo">558</span><a name="line.558"></a>
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- <span class="sourceLineNo">564</span> //upper bound and margin OK; get log10 of upper bound<a name="line.564"></a>
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- <span class="sourceLineNo">567</span> if ((logAbs = Math.abs(logUpper)) < 1.0) {<a name="line.567"></a>
- <span class="sourceLineNo">568</span> logAbs = 1.0; //if less than 1.0 then make it 1.0<a name="line.568"></a>
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- <span class="sourceLineNo">570</span> upper = Math.pow(10, (logUpper + (logAbs * upperMargin)));<a name="line.570"></a>
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- <span class="sourceLineNo">576</span> //round up to nearest significant digit for bound:<a name="line.576"></a>
- <span class="sourceLineNo">577</span> //get negative exponent:<a name="line.577"></a>
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- <span class="sourceLineNo">580</span> expVal = Math.pow(10, expVal); //create multiplier value<a name="line.580"></a>
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- <span class="sourceLineNo">587</span> //if flag then change to log version of highest value to<a name="line.587"></a>
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- <span class="sourceLineNo">589</span> upper = (this.autoRangeNextLogFlag) ? computeLogCeil(upper)<a name="line.589"></a>
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- <span class="sourceLineNo">596</span> lower = (upper + lower - minRange) / 2;<a name="line.596"></a>
- <span class="sourceLineNo">597</span> //if autorange still below minimum then adjust by 1%<a name="line.597"></a>
- <span class="sourceLineNo">598</span> // (can be needed when minRange is very small):<a name="line.598"></a>
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- <span class="sourceLineNo">604</span> upper = (upper + lower + adjVal) / 2;<a name="line.604"></a>
- <span class="sourceLineNo">605</span> lower = (upper + lower - adjVal) / 2;<a name="line.605"></a>
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- <span class="sourceLineNo">924</span> //small log values in use<a name="line.924"></a>
- <span class="sourceLineNo">925</span> tickVal = Math.pow(10, i) + (Math.pow(10, i) * j);<a name="line.925"></a>
- <span class="sourceLineNo">926</span> if (j == 0) {<a name="line.926"></a>
- <span class="sourceLineNo">927</span> //first tick of group; create label text<a name="line.927"></a>
- <span class="sourceLineNo">928</span> if (this.log10TickLabelsFlag) {<a name="line.928"></a>
- <span class="sourceLineNo">929</span> //if flag then<a name="line.929"></a>
- <span class="sourceLineNo">930</span> tickLabel = "10^" + i; //create "log10"-type label<a name="line.930"></a>
- <span class="sourceLineNo">931</span> }<a name="line.931"></a>
- <span class="sourceLineNo">932</span> else { //not "log10"-type label<a name="line.932"></a>
- <span class="sourceLineNo">933</span> if (this.expTickLabelsFlag) {<a name="line.933"></a>
- <span class="sourceLineNo">934</span> //if flag then<a name="line.934"></a>
- <span class="sourceLineNo">935</span> tickLabel = "1e" + i; //create "1e#"-type label<a name="line.935"></a>
- <span class="sourceLineNo">936</span> }<a name="line.936"></a>
- <span class="sourceLineNo">937</span> else { //not "1e#"-type label<a name="line.937"></a>
- <span class="sourceLineNo">938</span> if (i >= 0) { // if positive exponent then<a name="line.938"></a>
- <span class="sourceLineNo">939</span> // make integer<a name="line.939"></a>
- <span class="sourceLineNo">940</span> NumberFormat format<a name="line.940"></a>
- <span class="sourceLineNo">941</span> = getNumberFormatOverride();<a name="line.941"></a>
- <span class="sourceLineNo">942</span> if (format != null) {<a name="line.942"></a>
- <span class="sourceLineNo">943</span> tickLabel = format.format(tickVal);<a name="line.943"></a>
- <span class="sourceLineNo">944</span> }<a name="line.944"></a>
- <span class="sourceLineNo">945</span> else {<a name="line.945"></a>
- <span class="sourceLineNo">946</span> tickLabel = Long.toString((long)<a name="line.946"></a>
- <span class="sourceLineNo">947</span> Math.rint(tickVal));<a name="line.947"></a>
- <span class="sourceLineNo">948</span> }<a name="line.948"></a>
- <span class="sourceLineNo">949</span> }<a name="line.949"></a>
- <span class="sourceLineNo">950</span> else {<a name="line.950"></a>
- <span class="sourceLineNo">951</span> //negative exponent; create fractional value<a name="line.951"></a>
- <span class="sourceLineNo">952</span> //set exact number of fractional digits to<a name="line.952"></a>
- <span class="sourceLineNo">953</span> // be shown:<a name="line.953"></a>
- <span class="sourceLineNo">954</span> this.numberFormatterObj<a name="line.954"></a>
- <span class="sourceLineNo">955</span> .setMaximumFractionDigits(-i);<a name="line.955"></a>
- <span class="sourceLineNo">956</span> //create tick label:<a name="line.956"></a>
- <span class="sourceLineNo">957</span> tickLabel = this.numberFormatterObj.format(<a name="line.957"></a>
- <span class="sourceLineNo">958</span> tickVal);<a name="line.958"></a>
- <span class="sourceLineNo">959</span> }<a name="line.959"></a>
- <span class="sourceLineNo">960</span> }<a name="line.960"></a>
- <span class="sourceLineNo">961</span> }<a name="line.961"></a>
- <span class="sourceLineNo">962</span> }<a name="line.962"></a>
- <span class="sourceLineNo">963</span> else { //not first tick to be displayed<a name="line.963"></a>
- <span class="sourceLineNo">964</span> tickLabel = ""; //no tick label<a name="line.964"></a>
- <span class="sourceLineNo">965</span> }<a name="line.965"></a>
- <span class="sourceLineNo">966</span> }<a name="line.966"></a>
- <span class="sourceLineNo">967</span> else { //not small log values in use; allow for values <= 0<a name="line.967"></a>
- <span class="sourceLineNo">968</span> if (zeroTickFlag) { //if did zero tick last iter then<a name="line.968"></a>
- <span class="sourceLineNo">969</span> --j;<a name="line.969"></a>
- <span class="sourceLineNo">970</span> } //decrement to do 1.0 tick now<a name="line.970"></a>
- <span class="sourceLineNo">971</span> tickVal = (i >= 0) ? Math.pow(10, i) + (Math.pow(10, i) * j)<a name="line.971"></a>
- <span class="sourceLineNo">972</span> : -(Math.pow(10, -i) - (Math.pow(10, -i - 1) * j));<a name="line.972"></a>
- <span class="sourceLineNo">973</span> if (j == 0) { //first tick of group<a name="line.973"></a>
- <span class="sourceLineNo">974</span> if (!zeroTickFlag) { // did not do zero tick last<a name="line.974"></a>
- <span class="sourceLineNo">975</span> // iteration<a name="line.975"></a>
- <span class="sourceLineNo">976</span> if (i > iBegCount && i < iEndCount<a name="line.976"></a>
- <span class="sourceLineNo">977</span> && Math.abs(tickVal - 1.0) < 0.0001) {<a name="line.977"></a>
- <span class="sourceLineNo">978</span> // not first or last tick on graph and value<a name="line.978"></a>
- <span class="sourceLineNo">979</span> // is 1.0<a name="line.979"></a>
- <span class="sourceLineNo">980</span> tickVal = 0.0; //change value to 0.0<a name="line.980"></a>
- <span class="sourceLineNo">981</span> zeroTickFlag = true; //indicate zero tick<a name="line.981"></a>
- <span class="sourceLineNo">982</span> tickLabel = "0"; //create label for tick<a name="line.982"></a>
- <span class="sourceLineNo">983</span> }<a name="line.983"></a>
- <span class="sourceLineNo">984</span> else {<a name="line.984"></a>
- <span class="sourceLineNo">985</span> //first or last tick on graph or value is 1.0<a name="line.985"></a>
- <span class="sourceLineNo">986</span> //create label for tick:<a name="line.986"></a>
- <span class="sourceLineNo">987</span> if (this.log10TickLabelsFlag) {<a name="line.987"></a>
- <span class="sourceLineNo">988</span> //create "log10"-type label<a name="line.988"></a>
- <span class="sourceLineNo">989</span> tickLabel = (((i < 0) ? "-" : "")<a name="line.989"></a>
- <span class="sourceLineNo">990</span> + "10^" + Math.abs(i));<a name="line.990"></a>
- <span class="sourceLineNo">991</span> }<a name="line.991"></a>
- <span class="sourceLineNo">992</span> else {<a name="line.992"></a>
- <span class="sourceLineNo">993</span> if (this.expTickLabelsFlag) {<a name="line.993"></a>
- <span class="sourceLineNo">994</span> //create "1e#"-type label<a name="line.994"></a>
- <span class="sourceLineNo">995</span> tickLabel = (((i < 0) ? "-" : "")<a name="line.995"></a>
- <span class="sourceLineNo">996</span> + "1e" + Math.abs(i));<a name="line.996"></a>
- <span class="sourceLineNo">997</span> }<a name="line.997"></a>
- <span class="sourceLineNo">998</span> else {<a name="line.998"></a>
- <span class="sourceLineNo">999</span> NumberFormat format<a name="line.999"></a>
- <span class="sourceLineNo">1000</span> = getNumberFormatOverride();<a name="line.1000"></a>
- <span class="sourceLineNo">1001</span> if (format != null) {<a name="line.1001"></a>
- <span class="sourceLineNo">1002</span> tickLabel = format.format(tickVal);<a name="line.1002"></a>
- <span class="sourceLineNo">1003</span> }<a name="line.1003"></a>
- <span class="sourceLineNo">1004</span> else {<a name="line.1004"></a>
- <span class="sourceLineNo">1005</span> tickLabel = Long.toString(<a name="line.1005"></a>
- <span class="sourceLineNo">1006</span> (long) Math.rint(tickVal));<a name="line.1006"></a>
- <span class="sourceLineNo">1007</span> }<a name="line.1007"></a>
- <span class="sourceLineNo">1008</span> }<a name="line.1008"></a>
- <span class="sourceLineNo">1009</span> }<a name="line.1009"></a>
- <span class="sourceLineNo">1010</span> }<a name="line.1010"></a>
- <span class="sourceLineNo">1011</span> }<a name="line.1011"></a>
- <span class="sourceLineNo">1012</span> else { // did zero tick last iteration<a name="line.1012"></a>
- <span class="sourceLineNo">1013</span> tickLabel = ""; //no label<a name="line.1013"></a>
- <span class="sourceLineNo">1014</span> zeroTickFlag = false; //clear flag<a name="line.1014"></a>
- <span class="sourceLineNo">1015</span> }<a name="line.1015"></a>
- <span class="sourceLineNo">1016</span> }<a name="line.1016"></a>
- <span class="sourceLineNo">1017</span> else { // not first tick of group<a name="line.1017"></a>
- <span class="sourceLineNo">1018</span> tickLabel = ""; //no label<a name="line.1018"></a>
- <span class="sourceLineNo">1019</span> zeroTickFlag = false; //make sure flag cleared<a name="line.1019"></a>
- <span class="sourceLineNo">1020</span> }<a name="line.1020"></a>
- <span class="sourceLineNo">1021</span> }<a name="line.1021"></a>
- <span class="sourceLineNo">1022</span><a name="line.1022"></a>
- <span class="sourceLineNo">1023</span> if (tickVal > upperBoundVal) {<a name="line.1023"></a>
- <span class="sourceLineNo">1024</span> return ticks; //if past highest data value then exit method<a name="line.1024"></a>
- <span class="sourceLineNo">1025</span> }<a name="line.1025"></a>
- <span class="sourceLineNo">1026</span><a name="line.1026"></a>
- <span class="sourceLineNo">1027</span> if (tickVal >= lowerBoundVal - SMALL_LOG_VALUE) {<a name="line.1027"></a>
- <span class="sourceLineNo">1028</span> //tick value not below lowest data value<a name="line.1028"></a>
- <span class="sourceLineNo">1029</span> TextAnchor anchor;<a name="line.1029"></a>
- <span class="sourceLineNo">1030</span> TextAnchor rotationAnchor;<a name="line.1030"></a>
- <span class="sourceLineNo">1031</span> double angle = 0.0;<a name="line.1031"></a>
- <span class="sourceLineNo">1032</span> if (isVerticalTickLabels()) {<a name="line.1032"></a>
- <span class="sourceLineNo">1033</span> if (edge == RectangleEdge.LEFT) {<a name="line.1033"></a>
- <span class="sourceLineNo">1034</span> anchor = TextAnchor.BOTTOM_CENTER;<a name="line.1034"></a>
- <span class="sourceLineNo">1035</span> rotationAnchor = TextAnchor.BOTTOM_CENTER;<a name="line.1035"></a>
- <span class="sourceLineNo">1036</span> angle = -Math.PI / 2.0;<a name="line.1036"></a>
- <span class="sourceLineNo">1037</span> }<a name="line.1037"></a>
- <span class="sourceLineNo">1038</span> else {<a name="line.1038"></a>
- <span class="sourceLineNo">1039</span> anchor = TextAnchor.BOTTOM_CENTER;<a name="line.1039"></a>
- <span class="sourceLineNo">1040</span> rotationAnchor = TextAnchor.BOTTOM_CENTER;<a name="line.1040"></a>
- <span class="sourceLineNo">1041</span> angle = Math.PI / 2.0;<a name="line.1041"></a>
- <span class="sourceLineNo">1042</span> }<a name="line.1042"></a>
- <span class="sourceLineNo">1043</span> }<a name="line.1043"></a>
- <span class="sourceLineNo">1044</span> else {<a name="line.1044"></a>
- <span class="sourceLineNo">1045</span> if (edge == RectangleEdge.LEFT) {<a name="line.1045"></a>
- <span class="sourceLineNo">1046</span> anchor = TextAnchor.CENTER_RIGHT;<a name="line.1046"></a>
- <span class="sourceLineNo">1047</span> rotationAnchor = TextAnchor.CENTER_RIGHT;<a name="line.1047"></a>
- <span class="sourceLineNo">1048</span> }<a name="line.1048"></a>
- <span class="sourceLineNo">1049</span> else {<a name="line.1049"></a>
- <span class="sourceLineNo">1050</span> anchor = TextAnchor.CENTER_LEFT;<a name="line.1050"></a>
- <span class="sourceLineNo">1051</span> rotationAnchor = TextAnchor.CENTER_LEFT;<a name="line.1051"></a>
- <span class="sourceLineNo">1052</span> }<a name="line.1052"></a>
- <span class="sourceLineNo">1053</span> }<a name="line.1053"></a>
- <span class="sourceLineNo">1054</span> //create tick object and add to list:<a name="line.1054"></a>
- <span class="sourceLineNo">1055</span> ticks.add(new NumberTick(new Double(tickVal), tickLabel,<a name="line.1055"></a>
- <span class="sourceLineNo">1056</span> anchor, rotationAnchor, angle));<a name="line.1056"></a>
- <span class="sourceLineNo">1057</span> }<a name="line.1057"></a>
- <span class="sourceLineNo">1058</span> }<a name="line.1058"></a>
- <span class="sourceLineNo">1059</span> }<a name="line.1059"></a>
- <span class="sourceLineNo">1060</span> return ticks;<a name="line.1060"></a>
- <span class="sourceLineNo">1061</span> }<a name="line.1061"></a>
- <span class="sourceLineNo">1062</span><a name="line.1062"></a>
- <span class="sourceLineNo">1063</span> /**<a name="line.1063"></a>
- <span class="sourceLineNo">1064</span> * Converts the given value to a tick label string.<a name="line.1064"></a>
- <span class="sourceLineNo">1065</span> *<a name="line.1065"></a>
- <span class="sourceLineNo">1066</span> * @param val the value to convert.<a name="line.1066"></a>
- <span class="sourceLineNo">1067</span> * @param forceFmtFlag true to force the number-formatter object<a name="line.1067"></a>
- <span class="sourceLineNo">1068</span> * to be used.<a name="line.1068"></a>
- <span class="sourceLineNo">1069</span> *<a name="line.1069"></a>
- <span class="sourceLineNo">1070</span> * @return The tick label string.<a name="line.1070"></a>
- <span class="sourceLineNo">1071</span> */<a name="line.1071"></a>
- <span class="sourceLineNo">1072</span> protected String makeTickLabel(double val, boolean forceFmtFlag) {<a name="line.1072"></a>
- <span class="sourceLineNo">1073</span> if (this.expTickLabelsFlag || forceFmtFlag) {<a name="line.1073"></a>
- <span class="sourceLineNo">1074</span> //using exponents or force-formatter flag is set<a name="line.1074"></a>
- <span class="sourceLineNo">1075</span> // (convert 'E' to lower-case 'e'):<a name="line.1075"></a>
- <span class="sourceLineNo">1076</span> return this.numberFormatterObj.format(val).toLowerCase();<a name="line.1076"></a>
- <span class="sourceLineNo">1077</span> }<a name="line.1077"></a>
- <span class="sourceLineNo">1078</span> return getTickUnit().valueToString(val);<a name="line.1078"></a>
- <span class="sourceLineNo">1079</span> }<a name="line.1079"></a>
- <span class="sourceLineNo">1080</span><a name="line.1080"></a>
- <span class="sourceLineNo">1081</span> /**<a name="line.1081"></a>
- <span class="sourceLineNo">1082</span> * Converts the given value to a tick label string.<a name="line.1082"></a>
- <span class="sourceLineNo">1083</span> * @param val the value to convert.<a name="line.1083"></a>
- <span class="sourceLineNo">1084</span> *<a name="line.1084"></a>
- <span class="sourceLineNo">1085</span> * @return The tick label string.<a name="line.1085"></a>
- <span class="sourceLineNo">1086</span> */<a name="line.1086"></a>
- <span class="sourceLineNo">1087</span> protected String makeTickLabel(double val) {<a name="line.1087"></a>
- <span class="sourceLineNo">1088</span> return makeTickLabel(val, false);<a name="line.1088"></a>
- <span class="sourceLineNo">1089</span> }<a name="line.1089"></a>
- <span class="sourceLineNo">1090</span><a name="line.1090"></a>
- <span class="sourceLineNo">1091</span>}<a name="line.1091"></a>
- </pre>
- </div>
- </body>
- </html>
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