defaultpolaritemrenderer.html

jfreechart1。0。2的api。

<FONT color="green">136</FONT>        /**<a name="line.136"></a>
<FONT color="green">137</FONT>         * Plots the data for a given series.<a name="line.137"></a>
<FONT color="green">138</FONT>         * <a name="line.138"></a>
<FONT color="green">139</FONT>         * @param g2  the drawing surface.<a name="line.139"></a>
<FONT color="green">140</FONT>         * @param dataArea  the data area.<a name="line.140"></a>
<FONT color="green">141</FONT>         * @param info  collects plot rendering info.<a name="line.141"></a>
<FONT color="green">142</FONT>         * @param plot  the plot.<a name="line.142"></a>
<FONT color="green">143</FONT>         * @param dataset  the dataset.<a name="line.143"></a>
<FONT color="green">144</FONT>         * @param seriesIndex  the series index.<a name="line.144"></a>
<FONT color="green">145</FONT>         */<a name="line.145"></a>
<FONT color="green">146</FONT>        public void drawSeries(Graphics2D g2, <a name="line.146"></a>
<FONT color="green">147</FONT>                               Rectangle2D dataArea, <a name="line.147"></a>
<FONT color="green">148</FONT>                               PlotRenderingInfo info,<a name="line.148"></a>
<FONT color="green">149</FONT>                               PolarPlot plot,<a name="line.149"></a>
<FONT color="green">150</FONT>                               XYDataset dataset,<a name="line.150"></a>
<FONT color="green">151</FONT>                               int seriesIndex) {<a name="line.151"></a>
<FONT color="green">152</FONT>            <a name="line.152"></a>
<FONT color="green">153</FONT>            Polygon poly = new Polygon();<a name="line.153"></a>
<FONT color="green">154</FONT>            int numPoints = dataset.getItemCount(seriesIndex);<a name="line.154"></a>
<FONT color="green">155</FONT>            for (int i = 0; i &lt; numPoints; i++) {<a name="line.155"></a>
<FONT color="green">156</FONT>                double theta = dataset.getXValue(seriesIndex, i);<a name="line.156"></a>
<FONT color="green">157</FONT>                double radius = dataset.getYValue(seriesIndex, i);<a name="line.157"></a>
<FONT color="green">158</FONT>                Point p = plot.translateValueThetaRadiusToJava2D(<a name="line.158"></a>
<FONT color="green">159</FONT>                    theta, radius, dataArea<a name="line.159"></a>
<FONT color="green">160</FONT>                );<a name="line.160"></a>
<FONT color="green">161</FONT>                poly.addPoint(p.x, p.y);<a name="line.161"></a>
<FONT color="green">162</FONT>            }<a name="line.162"></a>
<FONT color="green">163</FONT>            g2.setPaint(getSeriesPaint(seriesIndex));<a name="line.163"></a>
<FONT color="green">164</FONT>            g2.setStroke(getSeriesStroke(seriesIndex));<a name="line.164"></a>
<FONT color="green">165</FONT>            if (isSeriesFilled(seriesIndex)) {<a name="line.165"></a>
<FONT color="green">166</FONT>                Composite savedComposite = g2.getComposite();<a name="line.166"></a>
<FONT color="green">167</FONT>                g2.setComposite(<a name="line.167"></a>
<FONT color="green">168</FONT>                    AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f)<a name="line.168"></a>
<FONT color="green">169</FONT>                );<a name="line.169"></a>
<FONT color="green">170</FONT>                g2.fill(poly);<a name="line.170"></a>
<FONT color="green">171</FONT>                g2.setComposite(savedComposite);<a name="line.171"></a>
<FONT color="green">172</FONT>            }<a name="line.172"></a>
<FONT color="green">173</FONT>            else {<a name="line.173"></a>
<FONT color="green">174</FONT>                g2.draw(poly);<a name="line.174"></a>
<FONT color="green">175</FONT>            }<a name="line.175"></a>
<FONT color="green">176</FONT>        }<a name="line.176"></a>
<FONT color="green">177</FONT>    <a name="line.177"></a>
<FONT color="green">178</FONT>        /**<a name="line.178"></a>
<FONT color="green">179</FONT>         * Returns &lt;code&gt;true&lt;/code&gt; if the renderer should fill the specified <a name="line.179"></a>
<FONT color="green">180</FONT>         * series, and &lt;code&gt;false&lt;/code&gt; otherwise.<a name="line.180"></a>
<FONT color="green">181</FONT>         * <a name="line.181"></a>
<FONT color="green">182</FONT>         * @param series  the series index (zero-based).<a name="line.182"></a>
<FONT color="green">183</FONT>         * <a name="line.183"></a>
<FONT color="green">184</FONT>         * @return A boolean.<a name="line.184"></a>
<FONT color="green">185</FONT>         */<a name="line.185"></a>
<FONT color="green">186</FONT>        public boolean isSeriesFilled(int series) {<a name="line.186"></a>
<FONT color="green">187</FONT>            boolean result = false;<a name="line.187"></a>
<FONT color="green">188</FONT>            Boolean b = this.seriesFilled.getBoolean(series);<a name="line.188"></a>
<FONT color="green">189</FONT>            if (b != null) {<a name="line.189"></a>
<FONT color="green">190</FONT>                result = b.booleanValue();<a name="line.190"></a>
<FONT color="green">191</FONT>            }<a name="line.191"></a>
<FONT color="green">192</FONT>            return result;<a name="line.192"></a>
<FONT color="green">193</FONT>        }<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>         * Sets a flag that controls whether or not a series is filled.<a name="line.196"></a>
<FONT color="green">197</FONT>         * <a name="line.197"></a>
<FONT color="green">198</FONT>         * @param series  the series index.<a name="line.198"></a>
<FONT color="green">199</FONT>         * @param filled  the flag.<a name="line.199"></a>
<FONT color="green">200</FONT>         */<a name="line.200"></a>
<FONT color="green">201</FONT>        public void setSeriesFilled(int series, boolean filled) {<a name="line.201"></a>
<FONT color="green">202</FONT>            this.seriesFilled.setBoolean(series, BooleanUtilities.valueOf(filled));<a name="line.202"></a>
<FONT color="green">203</FONT>        }<a name="line.203"></a>
<FONT color="green">204</FONT>        <a name="line.204"></a>
<FONT color="green">205</FONT>        /**<a name="line.205"></a>
<FONT color="green">206</FONT>         * Draw the angular gridlines - the spokes.<a name="line.206"></a>
<FONT color="green">207</FONT>         * <a name="line.207"></a>
<FONT color="green">208</FONT>         * @param g2  the drawing surface.<a name="line.208"></a>
<FONT color="green">209</FONT>         * @param plot  the plot.<a name="line.209"></a>
<FONT color="green">210</FONT>         * @param ticks  the ticks.<a name="line.210"></a>
<FONT color="green">211</FONT>         * @param dataArea  the data area.<a name="line.211"></a>
<FONT color="green">212</FONT>         */<a name="line.212"></a>
<FONT color="green">213</FONT>        public void drawAngularGridLines(Graphics2D g2, <a name="line.213"></a>
<FONT color="green">214</FONT>                                         PolarPlot plot, <a name="line.214"></a>
<FONT color="green">215</FONT>                                         List ticks,<a name="line.215"></a>
<FONT color="green">216</FONT>                                         Rectangle2D dataArea) {<a name="line.216"></a>
<FONT color="green">217</FONT>            <a name="line.217"></a>
<FONT color="green">218</FONT>            g2.setFont(plot.getAngleLabelFont());<a name="line.218"></a>
<FONT color="green">219</FONT>            g2.setStroke(plot.getAngleGridlineStroke());<a name="line.219"></a>
<FONT color="green">220</FONT>            g2.setPaint(plot.getAngleGridlinePaint());<a name="line.220"></a>
<FONT color="green">221</FONT>          <a name="line.221"></a>
<FONT color="green">222</FONT>            double axisMin = plot.getAxis().getLowerBound();<a name="line.222"></a>
<FONT color="green">223</FONT>            double maxRadius = plot.getMaxRadius();<a name="line.223"></a>
<FONT color="green">224</FONT>    <a name="line.224"></a>
<FONT color="green">225</FONT>            Point center = plot.translateValueThetaRadiusToJava2D(<a name="line.225"></a>
<FONT color="green">226</FONT>                axisMin, axisMin, dataArea<a name="line.226"></a>
<FONT color="green">227</FONT>            );<a name="line.227"></a>
<FONT color="green">228</FONT>            Iterator iterator = ticks.iterator();<a name="line.228"></a>
<FONT color="green">229</FONT>            while (iterator.hasNext()) {<a name="line.229"></a>
<FONT color="green">230</FONT>                NumberTick tick = (NumberTick) iterator.next();<a name="line.230"></a>
<FONT color="green">231</FONT>                Point p = plot.translateValueThetaRadiusToJava2D(<a name="line.231"></a>
<FONT color="green">232</FONT>                    tick.getNumber().doubleValue(), maxRadius, dataArea<a name="line.232"></a>
<FONT color="green">233</FONT>                );<a name="line.233"></a>
<FONT color="green">234</FONT>                g2.setPaint(plot.getAngleGridlinePaint());<a name="line.234"></a>
<FONT color="green">235</FONT>                g2.drawLine(center.x, center.y, p.x, p.y);<a name="line.235"></a>
<FONT color="green">236</FONT>                if (plot.isAngleLabelsVisible()) {<a name="line.236"></a>
<FONT color="green">237</FONT>                    int x = p.x;<a name="line.237"></a>
<FONT color="green">238</FONT>                    int y = p.y;<a name="line.238"></a>
<FONT color="green">239</FONT>                    g2.setPaint(plot.getAngleLabelPaint());<a name="line.239"></a>
<FONT color="green">240</FONT>                    TextUtilities.drawAlignedString(<a name="line.240"></a>
<FONT color="green">241</FONT>                        tick.getText(), g2, x, y, TextAnchor.CENTER<a name="line.241"></a>
<FONT color="green">242</FONT>                    );<a name="line.242"></a>
<FONT color="green">243</FONT>                }<a name="line.243"></a>
<FONT color="green">244</FONT>            }<a name="line.244"></a>
<FONT color="green">245</FONT>         }<a name="line.245"></a>
<FONT color="green">246</FONT>    <a name="line.246"></a>
<FONT color="green">247</FONT>        /**<a name="line.247"></a>
<FONT color="green">248</FONT>         * Draw the radial gridlines - the rings.<a name="line.248"></a>
<FONT color="green">249</FONT>         * <a name="line.249"></a>
<FONT color="green">250</FONT>         * @param g2  the drawing surface.<a name="line.250"></a>
<FONT color="green">251</FONT>         * @param plot  the plot.<a name="line.251"></a>
<FONT color="green">252</FONT>         * @param radialAxis  the radial axis.<a name="line.252"></a>
<FONT color="green">253</FONT>         * @param ticks  the ticks.<a name="line.253"></a>
<FONT color="green">254</FONT>         * @param dataArea  the data area.<a name="line.254"></a>
<FONT color="green">255</FONT>         */<a name="line.255"></a>
<FONT color="green">256</FONT>        public void drawRadialGridLines(Graphics2D g2, <a name="line.256"></a>
<FONT color="green">257</FONT>                                        PolarPlot plot,<a name="line.257"></a>
<FONT color="green">258</FONT>                                        ValueAxis radialAxis,<a name="line.258"></a>
<FONT color="green">259</FONT>                                        List ticks,<a name="line.259"></a>
<FONT color="green">260</FONT>                                        Rectangle2D dataArea) {<a name="line.260"></a>
<FONT color="green">261</FONT>            <a name="line.261"></a>
<FONT color="green">262</FONT>            g2.setFont(radialAxis.getTickLabelFont());<a name="line.262"></a>
<FONT color="green">263</FONT>            g2.setPaint(plot.getRadiusGridlinePaint());<a name="line.263"></a>
<FONT color="green">264</FONT>            g2.setStroke(plot.getRadiusGridlineStroke());<a name="line.264"></a>
<FONT color="green">265</FONT>    <a name="line.265"></a>
<FONT color="green">266</FONT>            double axisMin = radialAxis.getLowerBound();<a name="line.266"></a>
<FONT color="green">267</FONT>            Point center = plot.translateValueThetaRadiusToJava2D(<a name="line.267"></a>
<FONT color="green">268</FONT>                axisMin, axisMin, dataArea<a name="line.268"></a>
<FONT color="green">269</FONT>            );<a name="line.269"></a>
<FONT color="green">270</FONT>            <a name="line.270"></a>
<FONT color="green">271</FONT>            Iterator iterator = ticks.iterator();<a name="line.271"></a>
<FONT color="green">272</FONT>            while (iterator.hasNext()) {<a name="line.272"></a>
<FONT color="green">273</FONT>                NumberTick tick = (NumberTick) iterator.next();<a name="line.273"></a>