boxandwhiskerrenderer.html

jfreechart1。0。2的api。

<FONT color="green">278</FONT>                if ((rows * columns) &gt; 0) {<a name="line.278"></a>
<FONT color="green">279</FONT>                    state.setBarWidth(<a name="line.279"></a>
<FONT color="green">280</FONT>                        used / (dataset.getColumnCount() * dataset.getRowCount())<a name="line.280"></a>
<FONT color="green">281</FONT>                    );<a name="line.281"></a>
<FONT color="green">282</FONT>                }<a name="line.282"></a>
<FONT color="green">283</FONT>                else {<a name="line.283"></a>
<FONT color="green">284</FONT>                    state.setBarWidth(used);<a name="line.284"></a>
<FONT color="green">285</FONT>                }<a name="line.285"></a>
<FONT color="green">286</FONT>            }<a name="line.286"></a>
<FONT color="green">287</FONT>            <a name="line.287"></a>
<FONT color="green">288</FONT>            return state;<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>    <a name="line.291"></a>
<FONT color="green">292</FONT>        /**<a name="line.292"></a>
<FONT color="green">293</FONT>         * Draw a single data item.<a name="line.293"></a>
<FONT color="green">294</FONT>         *<a name="line.294"></a>
<FONT color="green">295</FONT>         * @param g2  the graphics device.<a name="line.295"></a>
<FONT color="green">296</FONT>         * @param state  the renderer state.<a name="line.296"></a>
<FONT color="green">297</FONT>         * @param dataArea  the area in which the data is drawn.<a name="line.297"></a>
<FONT color="green">298</FONT>         * @param plot  the plot.<a name="line.298"></a>
<FONT color="green">299</FONT>         * @param domainAxis  the domain axis.<a name="line.299"></a>
<FONT color="green">300</FONT>         * @param rangeAxis  the range axis.<a name="line.300"></a>
<FONT color="green">301</FONT>         * @param dataset  the data.<a name="line.301"></a>
<FONT color="green">302</FONT>         * @param row  the row index (zero-based).<a name="line.302"></a>
<FONT color="green">303</FONT>         * @param column  the column index (zero-based).<a name="line.303"></a>
<FONT color="green">304</FONT>         * @param pass  the pass index.<a name="line.304"></a>
<FONT color="green">305</FONT>         */<a name="line.305"></a>
<FONT color="green">306</FONT>        public void drawItem(Graphics2D g2,<a name="line.306"></a>
<FONT color="green">307</FONT>                             CategoryItemRendererState state,<a name="line.307"></a>
<FONT color="green">308</FONT>                             Rectangle2D dataArea,<a name="line.308"></a>
<FONT color="green">309</FONT>                             CategoryPlot plot,<a name="line.309"></a>
<FONT color="green">310</FONT>                             CategoryAxis domainAxis,<a name="line.310"></a>
<FONT color="green">311</FONT>                             ValueAxis rangeAxis,<a name="line.311"></a>
<FONT color="green">312</FONT>                             CategoryDataset dataset,<a name="line.312"></a>
<FONT color="green">313</FONT>                             int row,<a name="line.313"></a>
<FONT color="green">314</FONT>                             int column,<a name="line.314"></a>
<FONT color="green">315</FONT>                             int pass) {<a name="line.315"></a>
<FONT color="green">316</FONT>                                 <a name="line.316"></a>
<FONT color="green">317</FONT>            if (!(dataset instanceof BoxAndWhiskerCategoryDataset)) {<a name="line.317"></a>
<FONT color="green">318</FONT>                throw new IllegalArgumentException(<a name="line.318"></a>
<FONT color="green">319</FONT>                    "BoxAndWhiskerRenderer.drawItem() : the data should be of type "<a name="line.319"></a>
<FONT color="green">320</FONT>                    + "BoxAndWhiskerCategoryDataset only."<a name="line.320"></a>
<FONT color="green">321</FONT>                );<a name="line.321"></a>
<FONT color="green">322</FONT>            }<a name="line.322"></a>
<FONT color="green">323</FONT>    <a name="line.323"></a>
<FONT color="green">324</FONT>            PlotOrientation orientation = plot.getOrientation();<a name="line.324"></a>
<FONT color="green">325</FONT>    <a name="line.325"></a>
<FONT color="green">326</FONT>            if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.326"></a>
<FONT color="green">327</FONT>                drawHorizontalItem(<a name="line.327"></a>
<FONT color="green">328</FONT>                    g2, state, dataArea, plot, domainAxis, rangeAxis, <a name="line.328"></a>
<FONT color="green">329</FONT>                    dataset, row, column<a name="line.329"></a>
<FONT color="green">330</FONT>                );<a name="line.330"></a>
<FONT color="green">331</FONT>            } <a name="line.331"></a>
<FONT color="green">332</FONT>            else if (orientation == PlotOrientation.VERTICAL) {<a name="line.332"></a>
<FONT color="green">333</FONT>                drawVerticalItem(<a name="line.333"></a>
<FONT color="green">334</FONT>                    g2, state, dataArea, plot, domainAxis, rangeAxis, <a name="line.334"></a>
<FONT color="green">335</FONT>                    dataset, row, column<a name="line.335"></a>
<FONT color="green">336</FONT>                );<a name="line.336"></a>
<FONT color="green">337</FONT>            }<a name="line.337"></a>
<FONT color="green">338</FONT>            <a name="line.338"></a>
<FONT color="green">339</FONT>        }<a name="line.339"></a>
<FONT color="green">340</FONT>    <a name="line.340"></a>
<FONT color="green">341</FONT>        /**<a name="line.341"></a>
<FONT color="green">342</FONT>         * Draws the visual representation of a single data item when the plot has <a name="line.342"></a>
<FONT color="green">343</FONT>         * a horizontal orientation.<a name="line.343"></a>
<FONT color="green">344</FONT>         *<a name="line.344"></a>
<FONT color="green">345</FONT>         * @param g2  the graphics device.<a name="line.345"></a>
<FONT color="green">346</FONT>         * @param state  the renderer state.<a name="line.346"></a>
<FONT color="green">347</FONT>         * @param dataArea  the area within which the plot is being drawn.<a name="line.347"></a>
<FONT color="green">348</FONT>         * @param plot  the plot (can be used to obtain standard color <a name="line.348"></a>
<FONT color="green">349</FONT>         *              information etc).<a name="line.349"></a>
<FONT color="green">350</FONT>         * @param domainAxis  the domain axis.<a name="line.350"></a>
<FONT color="green">351</FONT>         * @param rangeAxis  the range axis.<a name="line.351"></a>
<FONT color="green">352</FONT>         * @param dataset  the dataset.<a name="line.352"></a>
<FONT color="green">353</FONT>         * @param row  the row index (zero-based).<a name="line.353"></a>
<FONT color="green">354</FONT>         * @param column  the column index (zero-based).<a name="line.354"></a>
<FONT color="green">355</FONT>         */<a name="line.355"></a>
<FONT color="green">356</FONT>        public void drawHorizontalItem(Graphics2D g2,<a name="line.356"></a>
<FONT color="green">357</FONT>                                       CategoryItemRendererState state,<a name="line.357"></a>
<FONT color="green">358</FONT>                                       Rectangle2D dataArea,<a name="line.358"></a>
<FONT color="green">359</FONT>                                       CategoryPlot plot,<a name="line.359"></a>
<FONT color="green">360</FONT>                                       CategoryAxis domainAxis,<a name="line.360"></a>
<FONT color="green">361</FONT>                                       ValueAxis rangeAxis,<a name="line.361"></a>
<FONT color="green">362</FONT>                                       CategoryDataset dataset,<a name="line.362"></a>
<FONT color="green">363</FONT>                                       int row,<a name="line.363"></a>
<FONT color="green">364</FONT>                                       int column) {<a name="line.364"></a>
<FONT color="green">365</FONT>    <a name="line.365"></a>
<FONT color="green">366</FONT>            BoxAndWhiskerCategoryDataset bawDataset <a name="line.366"></a>
<FONT color="green">367</FONT>                = (BoxAndWhiskerCategoryDataset) dataset;<a name="line.367"></a>
<FONT color="green">368</FONT>    <a name="line.368"></a>
<FONT color="green">369</FONT>            double categoryEnd = domainAxis.getCategoryEnd(<a name="line.369"></a>
<FONT color="green">370</FONT>                column, getColumnCount(), dataArea, plot.getDomainAxisEdge()<a name="line.370"></a>
<FONT color="green">371</FONT>            );<a name="line.371"></a>
<FONT color="green">372</FONT>            double categoryStart = domainAxis.getCategoryStart(<a name="line.372"></a>
<FONT color="green">373</FONT>                column, getColumnCount(), dataArea, plot.getDomainAxisEdge()<a name="line.373"></a>
<FONT color="green">374</FONT>            );<a name="line.374"></a>
<FONT color="green">375</FONT>            double categoryWidth = Math.abs(categoryEnd - categoryStart);<a name="line.375"></a>
<FONT color="green">376</FONT>    <a name="line.376"></a>
<FONT color="green">377</FONT>            double yy = categoryStart;<a name="line.377"></a>
<FONT color="green">378</FONT>            int seriesCount = getRowCount();<a name="line.378"></a>
<FONT color="green">379</FONT>            int categoryCount = getColumnCount();<a name="line.379"></a>
<FONT color="green">380</FONT>    <a name="line.380"></a>
<FONT color="green">381</FONT>            if (seriesCount &gt; 1) {<a name="line.381"></a>
<FONT color="green">382</FONT>                double seriesGap = dataArea.getWidth() * getItemMargin()<a name="line.382"></a>
<FONT color="green">383</FONT>                                   / (categoryCount * (seriesCount - 1));<a name="line.383"></a>
<FONT color="green">384</FONT>                double usedWidth = (state.getBarWidth() * seriesCount) <a name="line.384"></a>
<FONT color="green">385</FONT>                                   + (seriesGap * (seriesCount - 1));<a name="line.385"></a>
<FONT color="green">386</FONT>                // offset the start of the boxes if the total width used is smaller<a name="line.386"></a>
<FONT color="green">387</FONT>                // than the category width<a name="line.387"></a>
<FONT color="green">388</FONT>                double offset = (categoryWidth - usedWidth) / 2;<a name="line.388"></a>
<FONT color="green">389</FONT>                yy = yy + offset + (row * (state.getBarWidth() + seriesGap));<a name="line.389"></a>
<FONT color="green">390</FONT>            } <a name="line.390"></a>
<FONT color="green">391</FONT>            else {<a name="line.391"></a>
<FONT color="green">392</FONT>                // offset the start of the box if the box width is smaller than <a name="line.392"></a>
<FONT color="green">393</FONT>                // the category width<a name="line.393"></a>
<FONT color="green">394</FONT>                double offset = (categoryWidth - state.getBarWidth()) / 2;<a name="line.394"></a>
<FONT color="green">395</FONT>                yy = yy + offset;<a name="line.395"></a>
<FONT color="green">396</FONT>            }<a name="line.396"></a>
<FONT color="green">397</FONT>    <a name="line.397"></a>
<FONT color="green">398</FONT>            Paint p = getItemPaint(row, column);<a name="line.398"></a>
<FONT color="green">399</FONT>            if (p != null) {<a name="line.399"></a>
<FONT color="green">400</FONT>                g2.setPaint(p);<a name="line.400"></a>
<FONT color="green">401</FONT>            }<a name="line.401"></a>
<FONT color="green">402</FONT>            Stroke s = getItemStroke(row, column);<a name="line.402"></a>
<FONT color="green">403</FONT>            g2.setStroke(s);<a name="line.403"></a>
<FONT color="green">404</FONT>    <a name="line.404"></a>
<FONT color="green">405</FONT>            RectangleEdge location = plot.getRangeAxisEdge();<a name="line.405"></a>
<FONT color="green">406</FONT>    <a name="line.406"></a>
<FONT color="green">407</FONT>            Number xQ1 = bawDataset.getQ1Value(row, column);<a name="line.407"></a>
<FONT color="green">408</FONT>            Number xQ3 = bawDataset.getQ3Value(row, column);<a name="line.408"></a>
<FONT color="green">409</FONT>            Number xMax = bawDataset.getMaxRegularValue(row, column);<a name="line.409"></a>
<FONT color="green">410</FONT>            Number xMin = bawDataset.getMinRegularValue(row, column);<a name="line.410"></a>
<FONT color="green">411</FONT>    <a name="line.411"></a>
<FONT color="green">412</FONT>            Shape box = null;<a name="line.412"></a>
<FONT color="green">413</FONT>            if (xQ1 != null &amp;&amp; xQ3 != null &amp;&amp; xMax != null &amp;&amp; xMin != null) {<a name="line.413"></a>
<FONT color="green">414</FONT>    <a name="line.414"></a>
<FONT color="green">415</FONT>                double xxQ1 = rangeAxis.valueToJava2D(<a name="line.415"></a>
<FONT color="green">416</FONT>                    xQ1.doubleValue(), dataArea, location<a name="line.416"></a>
<FONT color="green">417</FONT>                );<a name="line.417"></a>