xysteprenderer.html

jfreechart1。0。2的api。

<FONT color="green">168</FONT>            }<a name="line.168"></a>
<FONT color="green">169</FONT>    <a name="line.169"></a>
<FONT color="green">170</FONT>            RectangleEdge xAxisLocation = plot.getDomainAxisEdge();<a name="line.170"></a>
<FONT color="green">171</FONT>            RectangleEdge yAxisLocation = plot.getRangeAxisEdge();<a name="line.171"></a>
<FONT color="green">172</FONT>            double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation);<a name="line.172"></a>
<FONT color="green">173</FONT>            double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation);<a name="line.173"></a>
<FONT color="green">174</FONT>    <a name="line.174"></a>
<FONT color="green">175</FONT>            if (item &gt; 0) {<a name="line.175"></a>
<FONT color="green">176</FONT>                // get the previous data point...<a name="line.176"></a>
<FONT color="green">177</FONT>                double x0 = dataset.getXValue(series, item - 1);<a name="line.177"></a>
<FONT color="green">178</FONT>                double y0 = dataset.getYValue(series, item - 1);<a name="line.178"></a>
<FONT color="green">179</FONT>                if (!Double.isNaN(y0)) {<a name="line.179"></a>
<FONT color="green">180</FONT>                    double transX0 = domainAxis.valueToJava2D(x0, dataArea, <a name="line.180"></a>
<FONT color="green">181</FONT>                            xAxisLocation);<a name="line.181"></a>
<FONT color="green">182</FONT>                    double transY0 = rangeAxis.valueToJava2D(y0, dataArea, <a name="line.182"></a>
<FONT color="green">183</FONT>                            yAxisLocation);<a name="line.183"></a>
<FONT color="green">184</FONT>    <a name="line.184"></a>
<FONT color="green">185</FONT>                    Line2D line = state.workingLine;<a name="line.185"></a>
<FONT color="green">186</FONT>                    if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.186"></a>
<FONT color="green">187</FONT>                        if (transY0 == transY1) { //this represents the situation <a name="line.187"></a>
<FONT color="green">188</FONT>                                                  // for drawing a horizontal bar.<a name="line.188"></a>
<FONT color="green">189</FONT>                            line.setLine(transY0, transX0, transY1, transX1);<a name="line.189"></a>
<FONT color="green">190</FONT>                            g2.draw(line);<a name="line.190"></a>
<FONT color="green">191</FONT>                        }<a name="line.191"></a>
<FONT color="green">192</FONT>                        else {  //this handles the need to perform a 'step'.<a name="line.192"></a>
<FONT color="green">193</FONT>                            line.setLine(transY0, transX0, transY1, transX0);<a name="line.193"></a>
<FONT color="green">194</FONT>                            g2.draw(line);<a name="line.194"></a>
<FONT color="green">195</FONT>                            line.setLine(transY1, transX0, transY1, transX1);<a name="line.195"></a>
<FONT color="green">196</FONT>                            g2.draw(line);<a name="line.196"></a>
<FONT color="green">197</FONT>                        }<a name="line.197"></a>
<FONT color="green">198</FONT>                    }<a name="line.198"></a>
<FONT color="green">199</FONT>                    else if (orientation == PlotOrientation.VERTICAL) {<a name="line.199"></a>
<FONT color="green">200</FONT>                        if (transY0 == transY1) { // this represents the situation <a name="line.200"></a>
<FONT color="green">201</FONT>                                                  // for drawing a horizontal bar.<a name="line.201"></a>
<FONT color="green">202</FONT>                            line.setLine(transX0, transY0, transX1, transY1);<a name="line.202"></a>
<FONT color="green">203</FONT>                            g2.draw(line);<a name="line.203"></a>
<FONT color="green">204</FONT>                        }<a name="line.204"></a>
<FONT color="green">205</FONT>                        else {  //this handles the need to perform a 'step'.<a name="line.205"></a>
<FONT color="green">206</FONT>                            line.setLine(transX0, transY0, transX1, transY0);<a name="line.206"></a>
<FONT color="green">207</FONT>                            g2.draw(line);<a name="line.207"></a>
<FONT color="green">208</FONT>                            line.setLine(transX1, transY0, transX1, transY1);<a name="line.208"></a>
<FONT color="green">209</FONT>                            g2.draw(line);<a name="line.209"></a>
<FONT color="green">210</FONT>                        }<a name="line.210"></a>
<FONT color="green">211</FONT>                    }<a name="line.211"></a>
<FONT color="green">212</FONT>    <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>            // draw the item label if there is one...<a name="line.216"></a>
<FONT color="green">217</FONT>            if (isItemLabelVisible(series, item)) {<a name="line.217"></a>
<FONT color="green">218</FONT>                double xx = transX1;<a name="line.218"></a>
<FONT color="green">219</FONT>                double yy = transY1;<a name="line.219"></a>
<FONT color="green">220</FONT>                if (orientation == PlotOrientation.HORIZONTAL) {<a name="line.220"></a>
<FONT color="green">221</FONT>                    xx = transY1;<a name="line.221"></a>
<FONT color="green">222</FONT>                    yy = transX1;<a name="line.222"></a>
<FONT color="green">223</FONT>                }          <a name="line.223"></a>
<FONT color="green">224</FONT>                drawItemLabel(g2, orientation, dataset, series, item, xx, yy, <a name="line.224"></a>
<FONT color="green">225</FONT>                        (y1 &lt; 0.0));<a name="line.225"></a>
<FONT color="green">226</FONT>            }<a name="line.226"></a>
<FONT color="green">227</FONT>    <a name="line.227"></a>
<FONT color="green">228</FONT>            updateCrosshairValues(crosshairState, x1, y1, transX1, transY1, <a name="line.228"></a>
<FONT color="green">229</FONT>                    orientation);<a name="line.229"></a>
<FONT color="green">230</FONT>            <a name="line.230"></a>
<FONT color="green">231</FONT>            // collect entity and tool tip information...<a name="line.231"></a>
<FONT color="green">232</FONT>            if (state.getInfo() != null) {<a name="line.232"></a>
<FONT color="green">233</FONT>                EntityCollection entities = state.getEntityCollection();<a name="line.233"></a>
<FONT color="green">234</FONT>                if (entities != null) {<a name="line.234"></a>
<FONT color="green">235</FONT>                    int r = getDefaultEntityRadius();<a name="line.235"></a>
<FONT color="green">236</FONT>                    Shape shape = orientation == PlotOrientation.VERTICAL<a name="line.236"></a>
<FONT color="green">237</FONT>                        ? new Rectangle2D.Double(transX1 - r, transY1 - r, 2 * r, <a name="line.237"></a>
<FONT color="green">238</FONT>                                2 * r)<a name="line.238"></a>
<FONT color="green">239</FONT>                        : new Rectangle2D.Double(transY1 - r, transX1 - r, 2 * r, <a name="line.239"></a>
<FONT color="green">240</FONT>                                2 * r);           <a name="line.240"></a>
<FONT color="green">241</FONT>                    if (shape != null) {<a name="line.241"></a>
<FONT color="green">242</FONT>                        String tip = null;<a name="line.242"></a>
<FONT color="green">243</FONT>                        XYToolTipGenerator generator <a name="line.243"></a>
<FONT color="green">244</FONT>                            = getToolTipGenerator(series, item);<a name="line.244"></a>
<FONT color="green">245</FONT>                        if (generator != null) {<a name="line.245"></a>
<FONT color="green">246</FONT>                            tip = generator.generateToolTip(dataset, series, item);<a name="line.246"></a>
<FONT color="green">247</FONT>                        }<a name="line.247"></a>
<FONT color="green">248</FONT>                        String url = null;<a name="line.248"></a>
<FONT color="green">249</FONT>                        if (getURLGenerator() != null) {<a name="line.249"></a>
<FONT color="green">250</FONT>                            url = getURLGenerator().generateURL(dataset, series, <a name="line.250"></a>
<FONT color="green">251</FONT>                                    item);<a name="line.251"></a>
<FONT color="green">252</FONT>                        }<a name="line.252"></a>
<FONT color="green">253</FONT>                        XYItemEntity entity = new XYItemEntity(shape, dataset, <a name="line.253"></a>
<FONT color="green">254</FONT>                                series, item, tip, url);<a name="line.254"></a>
<FONT color="green">255</FONT>                        entities.add(entity);<a name="line.255"></a>
<FONT color="green">256</FONT>                    }<a name="line.256"></a>
<FONT color="green">257</FONT>                }<a name="line.257"></a>
<FONT color="green">258</FONT>            }<a name="line.258"></a>
<FONT color="green">259</FONT>        }<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>         * Returns a clone of the renderer.<a name="line.262"></a>
<FONT color="green">263</FONT>         * <a name="line.263"></a>
<FONT color="green">264</FONT>         * @return A clone.<a name="line.264"></a>
<FONT color="green">265</FONT>         * <a name="line.265"></a>
<FONT color="green">266</FONT>         * @throws CloneNotSupportedException  if the renderer cannot be cloned.<a name="line.266"></a>
<FONT color="green">267</FONT>         */<a name="line.267"></a>
<FONT color="green">268</FONT>        public Object clone() throws CloneNotSupportedException {<a name="line.268"></a>
<FONT color="green">269</FONT>            return super.clone();<a name="line.269"></a>
<FONT color="green">270</FONT>        }<a name="line.270"></a>
<FONT color="green">271</FONT>    <a name="line.271"></a>
<FONT color="green">272</FONT>    }<a name="line.272"></a>




























































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