barchartdemo1.html

jfreechart最新源代码

<FONT color="green">136</FONT>            // create the chart...<a name="line.136"></a>
<FONT color="green">137</FONT>            JFreeChart chart = ChartFactory.createBarChart(<a name="line.137"></a>
<FONT color="green">138</FONT>                "Bar Chart Demo 1",       // chart title<a name="line.138"></a>
<FONT color="green">139</FONT>                "Category",               // domain axis label<a name="line.139"></a>
<FONT color="green">140</FONT>                "Value",                  // range axis label<a name="line.140"></a>
<FONT color="green">141</FONT>                dataset,                  // data<a name="line.141"></a>
<FONT color="green">142</FONT>                PlotOrientation.VERTICAL, // orientation<a name="line.142"></a>
<FONT color="green">143</FONT>                true,                     // include legend<a name="line.143"></a>
<FONT color="green">144</FONT>                true,                     // tooltips?<a name="line.144"></a>
<FONT color="green">145</FONT>                false                     // URLs?<a name="line.145"></a>
<FONT color="green">146</FONT>            );<a name="line.146"></a>
<FONT color="green">147</FONT>    <a name="line.147"></a>
<FONT color="green">148</FONT>            // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...<a name="line.148"></a>
<FONT color="green">149</FONT>    <a name="line.149"></a>
<FONT color="green">150</FONT>            // set the background color for the chart...<a name="line.150"></a>
<FONT color="green">151</FONT>            chart.setBackgroundPaint(Color.white);<a name="line.151"></a>
<FONT color="green">152</FONT>    <a name="line.152"></a>
<FONT color="green">153</FONT>            // get a reference to the plot for further customisation...<a name="line.153"></a>
<FONT color="green">154</FONT>            CategoryPlot plot = chart.getCategoryPlot();<a name="line.154"></a>
<FONT color="green">155</FONT>            plot.setBackgroundPaint(Color.lightGray);<a name="line.155"></a>
<FONT color="green">156</FONT>            plot.setDomainGridlinePaint(Color.white);<a name="line.156"></a>
<FONT color="green">157</FONT>            plot.setDomainGridlinesVisible(true);<a name="line.157"></a>
<FONT color="green">158</FONT>            plot.setRangeGridlinePaint(Color.white);<a name="line.158"></a>
<FONT color="green">159</FONT>    <a name="line.159"></a>
<FONT color="green">160</FONT>            // ******************************************************************<a name="line.160"></a>
<FONT color="green">161</FONT>            //  More than 100 demo applications are included with the JFreeChart<a name="line.161"></a>
<FONT color="green">162</FONT>            //  Developer Guide...for more information, see:<a name="line.162"></a>
<FONT color="green">163</FONT>            //<a name="line.163"></a>
<FONT color="green">164</FONT>            //  &gt;   http://www.object-refinery.com/jfreechart/guide.html<a name="line.164"></a>
<FONT color="green">165</FONT>            //<a name="line.165"></a>
<FONT color="green">166</FONT>            // ******************************************************************<a name="line.166"></a>
<FONT color="green">167</FONT>            <a name="line.167"></a>
<FONT color="green">168</FONT>            // set the range axis to display integers only...<a name="line.168"></a>
<FONT color="green">169</FONT>            final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();<a name="line.169"></a>
<FONT color="green">170</FONT>            rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());<a name="line.170"></a>
<FONT color="green">171</FONT>    <a name="line.171"></a>
<FONT color="green">172</FONT>            // disable bar outlines...<a name="line.172"></a>
<FONT color="green">173</FONT>            BarRenderer renderer = (BarRenderer) plot.getRenderer();<a name="line.173"></a>
<FONT color="green">174</FONT>            renderer.setDrawBarOutline(false);<a name="line.174"></a>
<FONT color="green">175</FONT>            <a name="line.175"></a>
<FONT color="green">176</FONT>            // set up gradient paints for series...<a name="line.176"></a>
<FONT color="green">177</FONT>            GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, <a name="line.177"></a>
<FONT color="green">178</FONT>                    0.0f, 0.0f, new Color(0, 0, 64));<a name="line.178"></a>
<FONT color="green">179</FONT>            GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, <a name="line.179"></a>
<FONT color="green">180</FONT>                    0.0f, 0.0f, new Color(0, 64, 0));<a name="line.180"></a>
<FONT color="green">181</FONT>            GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, <a name="line.181"></a>
<FONT color="green">182</FONT>                    0.0f, 0.0f, new Color(64, 0, 0));<a name="line.182"></a>
<FONT color="green">183</FONT>            renderer.setSeriesPaint(0, gp0);<a name="line.183"></a>
<FONT color="green">184</FONT>            renderer.setSeriesPaint(1, gp1);<a name="line.184"></a>
<FONT color="green">185</FONT>            renderer.setSeriesPaint(2, gp2);<a name="line.185"></a>
<FONT color="green">186</FONT>    <a name="line.186"></a>
<FONT color="green">187</FONT>            CategoryAxis domainAxis = plot.getDomainAxis();<a name="line.187"></a>
<FONT color="green">188</FONT>            domainAxis.setCategoryLabelPositions(<a name="line.188"></a>
<FONT color="green">189</FONT>                    CategoryLabelPositions.createUpRotationLabelPositions(<a name="line.189"></a>
<FONT color="green">190</FONT>                            Math.PI / 6.0));<a name="line.190"></a>
<FONT color="green">191</FONT>            // OPTIONAL CUSTOMISATION COMPLETED.<a name="line.191"></a>
<FONT color="green">192</FONT>            <a name="line.192"></a>
<FONT color="green">193</FONT>            return chart;<a name="line.193"></a>
<FONT color="green">194</FONT>            <a name="line.194"></a>
<FONT color="green">195</FONT>        }<a name="line.195"></a>
<FONT color="green">196</FONT>        <a name="line.196"></a>
<FONT color="green">197</FONT>        /**<a name="line.197"></a>
<FONT color="green">198</FONT>         * Starting point for the demonstration application.<a name="line.198"></a>
<FONT color="green">199</FONT>         *<a name="line.199"></a>
<FONT color="green">200</FONT>         * @param args  ignored.<a name="line.200"></a>
<FONT color="green">201</FONT>         */<a name="line.201"></a>
<FONT color="green">202</FONT>        public static void main(String[] args) {<a name="line.202"></a>
<FONT color="green">203</FONT>            BarChartDemo1 demo = new BarChartDemo1("Bar Chart Demo 1");<a name="line.203"></a>
<FONT color="green">204</FONT>            demo.pack();<a name="line.204"></a>
<FONT color="green">205</FONT>            RefineryUtilities.centerFrameOnScreen(demo);<a name="line.205"></a>
<FONT color="green">206</FONT>            demo.setVisible(true);<a name="line.206"></a>
<FONT color="green">207</FONT>        }<a name="line.207"></a>
<FONT color="green">208</FONT>    <a name="line.208"></a>
<FONT color="green">209</FONT>    }<a name="line.209"></a>




























































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