multiplepieplot.html

jfreechart1。0。2的api。

<FONT color="green">163</FONT>        /**<a name="line.163"></a>
<FONT color="green">164</FONT>         * Sets the dataset used by the plot and sends a {@link PlotChangeEvent}<a name="line.164"></a>
<FONT color="green">165</FONT>         * to all registered listeners.<a name="line.165"></a>
<FONT color="green">166</FONT>         * <a name="line.166"></a>
<FONT color="green">167</FONT>         * @param dataset  the dataset (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.167"></a>
<FONT color="green">168</FONT>         */<a name="line.168"></a>
<FONT color="green">169</FONT>        public void setDataset(CategoryDataset dataset) {<a name="line.169"></a>
<FONT color="green">170</FONT>            // if there is an existing dataset, remove the plot from the list of <a name="line.170"></a>
<FONT color="green">171</FONT>            // change listeners...<a name="line.171"></a>
<FONT color="green">172</FONT>            if (this.dataset != null) {<a name="line.172"></a>
<FONT color="green">173</FONT>                this.dataset.removeChangeListener(this);<a name="line.173"></a>
<FONT color="green">174</FONT>            }<a name="line.174"></a>
<FONT color="green">175</FONT>    <a name="line.175"></a>
<FONT color="green">176</FONT>            // set the new dataset, and register the chart as a change listener...<a name="line.176"></a>
<FONT color="green">177</FONT>            this.dataset = dataset;<a name="line.177"></a>
<FONT color="green">178</FONT>            if (dataset != null) {<a name="line.178"></a>
<FONT color="green">179</FONT>                setDatasetGroup(dataset.getGroup());<a name="line.179"></a>
<FONT color="green">180</FONT>                dataset.addChangeListener(this);<a name="line.180"></a>
<FONT color="green">181</FONT>            }<a name="line.181"></a>
<FONT color="green">182</FONT>    <a name="line.182"></a>
<FONT color="green">183</FONT>            // send a dataset change event to self to trigger plot change event<a name="line.183"></a>
<FONT color="green">184</FONT>            datasetChanged(new DatasetChangeEvent(this, dataset));<a name="line.184"></a>
<FONT color="green">185</FONT>        }<a name="line.185"></a>
<FONT color="green">186</FONT>        <a name="line.186"></a>
<FONT color="green">187</FONT>        /**<a name="line.187"></a>
<FONT color="green">188</FONT>         * Returns the pie chart that is used to draw the individual pie plots.<a name="line.188"></a>
<FONT color="green">189</FONT>         * <a name="line.189"></a>
<FONT color="green">190</FONT>         * @return The pie chart.<a name="line.190"></a>
<FONT color="green">191</FONT>         */<a name="line.191"></a>
<FONT color="green">192</FONT>        public JFreeChart getPieChart() {<a name="line.192"></a>
<FONT color="green">193</FONT>            return this.pieChart;<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>         * Sets the chart that is used to draw the individual pie plots.<a name="line.197"></a>
<FONT color="green">198</FONT>         * <a name="line.198"></a>
<FONT color="green">199</FONT>         * @param pieChart  the pie chart.<a name="line.199"></a>
<FONT color="green">200</FONT>         */<a name="line.200"></a>
<FONT color="green">201</FONT>        public void setPieChart(JFreeChart pieChart) {<a name="line.201"></a>
<FONT color="green">202</FONT>            this.pieChart = pieChart;<a name="line.202"></a>
<FONT color="green">203</FONT>            notifyListeners(new PlotChangeEvent(this));<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>        /**<a name="line.206"></a>
<FONT color="green">207</FONT>         * Returns the data extract order (by row or by column).<a name="line.207"></a>
<FONT color="green">208</FONT>         * <a name="line.208"></a>
<FONT color="green">209</FONT>         * @return The data extract order (never &lt;code&gt;null&lt;/code&gt;).<a name="line.209"></a>
<FONT color="green">210</FONT>         */<a name="line.210"></a>
<FONT color="green">211</FONT>        public TableOrder getDataExtractOrder() {<a name="line.211"></a>
<FONT color="green">212</FONT>            return this.dataExtractOrder;<a name="line.212"></a>
<FONT color="green">213</FONT>        }<a name="line.213"></a>
<FONT color="green">214</FONT>        <a name="line.214"></a>
<FONT color="green">215</FONT>        /**<a name="line.215"></a>
<FONT color="green">216</FONT>         * Sets the data extract order (by row or by column) and sends a <a name="line.216"></a>
<FONT color="green">217</FONT>         * {@link PlotChangeEvent} to all registered listeners.<a name="line.217"></a>
<FONT color="green">218</FONT>         * <a name="line.218"></a>
<FONT color="green">219</FONT>         * @param order  the order (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.219"></a>
<FONT color="green">220</FONT>         */<a name="line.220"></a>
<FONT color="green">221</FONT>        public void setDataExtractOrder(TableOrder order) {<a name="line.221"></a>
<FONT color="green">222</FONT>            if (order == null) {<a name="line.222"></a>
<FONT color="green">223</FONT>                throw new IllegalArgumentException("Null 'order' argument");<a name="line.223"></a>
<FONT color="green">224</FONT>            }<a name="line.224"></a>
<FONT color="green">225</FONT>            this.dataExtractOrder = order;<a name="line.225"></a>
<FONT color="green">226</FONT>            notifyListeners(new PlotChangeEvent(this));<a name="line.226"></a>
<FONT color="green">227</FONT>        }<a name="line.227"></a>
<FONT color="green">228</FONT>        <a name="line.228"></a>
<FONT color="green">229</FONT>        /**<a name="line.229"></a>
<FONT color="green">230</FONT>         * Returns the limit (as a percentage) below which small pie sections are <a name="line.230"></a>
<FONT color="green">231</FONT>         * aggregated.<a name="line.231"></a>
<FONT color="green">232</FONT>         * <a name="line.232"></a>
<FONT color="green">233</FONT>         * @return The limit percentage.<a name="line.233"></a>
<FONT color="green">234</FONT>         */<a name="line.234"></a>
<FONT color="green">235</FONT>        public double getLimit() {<a name="line.235"></a>
<FONT color="green">236</FONT>            return this.limit;<a name="line.236"></a>
<FONT color="green">237</FONT>        }<a name="line.237"></a>
<FONT color="green">238</FONT>        <a name="line.238"></a>
<FONT color="green">239</FONT>        /**<a name="line.239"></a>
<FONT color="green">240</FONT>         * Sets the limit below which pie sections are aggregated.  <a name="line.240"></a>
<FONT color="green">241</FONT>         * Set this to 0.0 if you don't want any aggregation to occur.<a name="line.241"></a>
<FONT color="green">242</FONT>         * <a name="line.242"></a>
<FONT color="green">243</FONT>         * @param limit  the limit percent.<a name="line.243"></a>
<FONT color="green">244</FONT>         */<a name="line.244"></a>
<FONT color="green">245</FONT>        public void setLimit(double limit) {<a name="line.245"></a>
<FONT color="green">246</FONT>            this.limit = limit;<a name="line.246"></a>
<FONT color="green">247</FONT>            notifyListeners(new PlotChangeEvent(this));<a name="line.247"></a>
<FONT color="green">248</FONT>        }<a name="line.248"></a>
<FONT color="green">249</FONT>        <a name="line.249"></a>
<FONT color="green">250</FONT>        /**<a name="line.250"></a>
<FONT color="green">251</FONT>         * Returns the key for aggregated items in the pie plots, if there are any.<a name="line.251"></a>
<FONT color="green">252</FONT>         * The default value is "Other".<a name="line.252"></a>
<FONT color="green">253</FONT>         * <a name="line.253"></a>
<FONT color="green">254</FONT>         * @return The aggregated items key.<a name="line.254"></a>
<FONT color="green">255</FONT>         * <a name="line.255"></a>
<FONT color="green">256</FONT>         * @since 1.0.2<a name="line.256"></a>
<FONT color="green">257</FONT>         */<a name="line.257"></a>
<FONT color="green">258</FONT>        public Comparable getAggregatedItemsKey() {<a name="line.258"></a>
<FONT color="green">259</FONT>            return this.aggregatedItemsKey;<a name="line.259"></a>
<FONT color="green">260</FONT>        }<a name="line.260"></a>
<FONT color="green">261</FONT>        <a name="line.261"></a>
<FONT color="green">262</FONT>        /**<a name="line.262"></a>
<FONT color="green">263</FONT>         * Sets the key for aggregated items in the pie plots.  You must ensure <a name="line.263"></a>
<FONT color="green">264</FONT>         * that this doesn't clash with any keys in the dataset.<a name="line.264"></a>
<FONT color="green">265</FONT>         * <a name="line.265"></a>
<FONT color="green">266</FONT>         * @param key  the key (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.266"></a>
<FONT color="green">267</FONT>         * <a name="line.267"></a>
<FONT color="green">268</FONT>         * @since 1.0.2<a name="line.268"></a>
<FONT color="green">269</FONT>         */<a name="line.269"></a>
<FONT color="green">270</FONT>        public void setAggregatedItemsKey(Comparable key) {<a name="line.270"></a>
<FONT color="green">271</FONT>            if (key == null) {<a name="line.271"></a>
<FONT color="green">272</FONT>                throw new IllegalArgumentException("Null 'key' argument.");<a name="line.272"></a>
<FONT color="green">273</FONT>            }<a name="line.273"></a>
<FONT color="green">274</FONT>            this.aggregatedItemsKey = key;<a name="line.274"></a>
<FONT color="green">275</FONT>            notifyListeners(new PlotChangeEvent(this));<a name="line.275"></a>
<FONT color="green">276</FONT>        }<a name="line.276"></a>
<FONT color="green">277</FONT>        <a name="line.277"></a>
<FONT color="green">278</FONT>        /**<a name="line.278"></a>
<FONT color="green">279</FONT>         * Returns the paint used to draw the pie section representing the <a name="line.279"></a>
<FONT color="green">280</FONT>         * aggregated items.  The default value is &lt;code&gt;Color.lightGray&lt;/code&gt;.<a name="line.280"></a>
<FONT color="green">281</FONT>         * <a name="line.281"></a>
<FONT color="green">282</FONT>         * @return The paint.<a name="line.282"></a>
<FONT color="green">283</FONT>         * <a name="line.283"></a>
<FONT color="green">284</FONT>         * @since 1.0.2<a name="line.284"></a>
<FONT color="green">285</FONT>         */<a name="line.285"></a>
<FONT color="green">286</FONT>        public Paint getAggregatedItemsPaint() {<a name="line.286"></a>
<FONT color="green">287</FONT>            return this.aggregatedItemsPaint;<a name="line.287"></a>
<FONT color="green">288</FONT>        }<a name="line.288"></a>
<FONT color="green">289</FONT>        <a name="line.289"></a>
<FONT color="green">290</FONT>        /**<a name="line.290"></a>
<FONT color="green">291</FONT>         * Sets the paint used to draw the pie section representing the aggregated<a name="line.291"></a>
<FONT color="green">292</FONT>         * items and sends a {@link PlotChangeEvent} to all registered listeners.<a name="line.292"></a>
<FONT color="green">293</FONT>         * <a name="line.293"></a>
<FONT color="green">294</FONT>         * @param paint  the paint (&lt;code&gt;null&lt;/code&gt; not permitted).<a name="line.294"></a>
<FONT color="green">295</FONT>         * <a name="line.295"></a>
<FONT color="green">296</FONT>         * @since 1.0.2<a name="line.296"></a>
<FONT color="green">297</FONT>         */<a name="line.297"></a>
<FONT color="green">298</FONT>        public void setAggregatedItemsPaint(Paint paint) {<a name="line.298"></a>
<FONT color="green">299</FONT>            if (paint == null) {<a name="line.299"></a>
<FONT color="green">300</FONT>                throw new IllegalArgumentException("Null 'paint' argument.");<a name="line.300"></a>
<FONT color="green">301</FONT>            }<a name="line.301"></a>
<FONT color="green">302</FONT>            this.aggregatedItemsPaint = paint;<a name="line.302"></a>
<FONT color="green">303</FONT>            notifyListeners(new PlotChangeEvent(this));<a name="line.303"></a>
<FONT color="green">304</FONT>        }<a name="line.304"></a>
<FONT color="green">305</FONT>        <a name="line.305"></a>
<FONT color="green">306</FONT>        /**<a name="line.306"></a>
<FONT color="green">307</FONT>         * Returns a short string describing the type of plot.<a name="line.307"></a>
<FONT color="green">308</FONT>         *<a name="line.308"></a>
<FONT color="green">309</FONT>         * @return The plot type.<a name="line.309"></a>
<FONT color="green">310</FONT>         */<a name="line.310"></a>
<FONT color="green">311</FONT>        public String getPlotType() {<a name="line.311"></a>
<FONT color="green">312</FONT>            return "Multiple Pie Plot";  <a name="line.312"></a>
<FONT color="green">313</FONT>             // TODO: need to fetch this from localised resources<a name="line.313"></a>
<FONT color="green">314</FONT>        }<a name="line.314"></a>
<FONT color="green">315</FONT>    <a name="line.315"></a>
<FONT color="green">316</FONT>        /**<a name="line.316"></a>
<FONT color="green">317</FONT>         * Draws the plot on a Java 2D graphics device (such as the screen or a <a name="line.317"></a>
<FONT color="green">318</FONT>         * printer).<a name="line.318"></a>
<FONT color="green">319</FONT>         *<a name="line.319"></a>
<FONT color="green">320</FONT>         * @param g2  the graphics device.<a name="line.320"></a>
<FONT color="green">321</FONT>         * @param area  the area within which the plot should be drawn.<a name="line.321"></a>
<FONT color="green">322</FONT>         * @param anchor  the anchor point (&lt;code&gt;null&lt;/code&gt; permitted).<a name="line.322"></a>
<FONT color="green">323</FONT>         * @param parentState  the state from the parent plot, if there is one.<a name="line.323"></a>
<FONT color="green">324</FONT>         * @param info  collects info about the drawing.<a name="line.324"></a>
<FONT color="green">325</FONT>         */<a name="line.325"></a>
<FONT color="green">326</FONT>        public void draw(Graphics2D g2, <a name="line.326"></a>
<FONT color="green">327</FONT>                         Rectangle2D area,<a name="line.327"></a>