clippath.html

jfreechart1。0。2的api。

<FONT color="green">166</FONT>            this.fillPath = fillPath;<a name="line.166"></a>
<FONT color="green">167</FONT>            this.drawPath = drawPath;<a name="line.167"></a>
<FONT color="green">168</FONT>    <a name="line.168"></a>
<FONT color="green">169</FONT>            this.fillPaint = fillPaint;<a name="line.169"></a>
<FONT color="green">170</FONT>            this.drawPaint = drawPaint;<a name="line.170"></a>
<FONT color="green">171</FONT>            this.drawStroke = drawStroke;<a name="line.171"></a>
<FONT color="green">172</FONT>            this.composite = composite;<a name="line.172"></a>
<FONT color="green">173</FONT>    <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>        /**<a name="line.176"></a>
<FONT color="green">177</FONT>         * Draws the clip path.<a name="line.177"></a>
<FONT color="green">178</FONT>         *<a name="line.178"></a>
<FONT color="green">179</FONT>         * @param g2  current graphics2D.<a name="line.179"></a>
<FONT color="green">180</FONT>         * @param dataArea  the dataArea that the plot is being draw in.<a name="line.180"></a>
<FONT color="green">181</FONT>         * @param horizontalAxis  the horizontal axis.<a name="line.181"></a>
<FONT color="green">182</FONT>         * @param verticalAxis  the vertical axis.<a name="line.182"></a>
<FONT color="green">183</FONT>         *<a name="line.183"></a>
<FONT color="green">184</FONT>         * @return The GeneralPath defining the outline<a name="line.184"></a>
<FONT color="green">185</FONT>         */<a name="line.185"></a>
<FONT color="green">186</FONT>        public GeneralPath draw(Graphics2D g2,<a name="line.186"></a>
<FONT color="green">187</FONT>                                Rectangle2D dataArea,<a name="line.187"></a>
<FONT color="green">188</FONT>                                ValueAxis horizontalAxis, ValueAxis verticalAxis) {<a name="line.188"></a>
<FONT color="green">189</FONT>    <a name="line.189"></a>
<FONT color="green">190</FONT>            GeneralPath generalPath = generateClipPath(<a name="line.190"></a>
<FONT color="green">191</FONT>                dataArea, horizontalAxis, verticalAxis<a name="line.191"></a>
<FONT color="green">192</FONT>            );<a name="line.192"></a>
<FONT color="green">193</FONT>            if (this.fillPath || this.drawPath) {<a name="line.193"></a>
<FONT color="green">194</FONT>                Composite saveComposite = g2.getComposite();<a name="line.194"></a>
<FONT color="green">195</FONT>                Paint savePaint = g2.getPaint();<a name="line.195"></a>
<FONT color="green">196</FONT>                Stroke saveStroke = g2.getStroke();<a name="line.196"></a>
<FONT color="green">197</FONT>    <a name="line.197"></a>
<FONT color="green">198</FONT>                if (this.fillPaint != null) {<a name="line.198"></a>
<FONT color="green">199</FONT>                    g2.setPaint(this.fillPaint);<a name="line.199"></a>
<FONT color="green">200</FONT>                }<a name="line.200"></a>
<FONT color="green">201</FONT>                if (this.composite != null) {<a name="line.201"></a>
<FONT color="green">202</FONT>                    g2.setComposite(this.composite);<a name="line.202"></a>
<FONT color="green">203</FONT>                }<a name="line.203"></a>
<FONT color="green">204</FONT>                if (this.fillPath) {<a name="line.204"></a>
<FONT color="green">205</FONT>                    g2.fill(generalPath);<a name="line.205"></a>
<FONT color="green">206</FONT>                }<a name="line.206"></a>
<FONT color="green">207</FONT>    <a name="line.207"></a>
<FONT color="green">208</FONT>                if (this.drawStroke != null) {<a name="line.208"></a>
<FONT color="green">209</FONT>                    g2.setStroke(this.drawStroke);<a name="line.209"></a>
<FONT color="green">210</FONT>                }<a name="line.210"></a>
<FONT color="green">211</FONT>                if (this.drawPath) {<a name="line.211"></a>
<FONT color="green">212</FONT>                    g2.draw(generalPath);<a name="line.212"></a>
<FONT color="green">213</FONT>                }<a name="line.213"></a>
<FONT color="green">214</FONT>                g2.setPaint(savePaint);<a name="line.214"></a>
<FONT color="green">215</FONT>                g2.setComposite(saveComposite);<a name="line.215"></a>
<FONT color="green">216</FONT>                g2.setStroke(saveStroke);<a name="line.216"></a>
<FONT color="green">217</FONT>            }<a name="line.217"></a>
<FONT color="green">218</FONT>            return generalPath;<a name="line.218"></a>
<FONT color="green">219</FONT>    <a name="line.219"></a>
<FONT color="green">220</FONT>        }<a name="line.220"></a>
<FONT color="green">221</FONT>    <a name="line.221"></a>
<FONT color="green">222</FONT>        /**<a name="line.222"></a>
<FONT color="green">223</FONT>         * Generates the clip path.<a name="line.223"></a>
<FONT color="green">224</FONT>         *<a name="line.224"></a>
<FONT color="green">225</FONT>         * @param dataArea  the dataArea that the plot is being draw in.<a name="line.225"></a>
<FONT color="green">226</FONT>         * @param horizontalAxis  the horizontal axis.<a name="line.226"></a>
<FONT color="green">227</FONT>         * @param verticalAxis  the vertical axis.<a name="line.227"></a>
<FONT color="green">228</FONT>         *<a name="line.228"></a>
<FONT color="green">229</FONT>         * @return The GeneralPath defining the outline<a name="line.229"></a>
<FONT color="green">230</FONT>         */<a name="line.230"></a>
<FONT color="green">231</FONT>        public GeneralPath generateClipPath(Rectangle2D dataArea,<a name="line.231"></a>
<FONT color="green">232</FONT>                                            ValueAxis horizontalAxis, <a name="line.232"></a>
<FONT color="green">233</FONT>                                            ValueAxis verticalAxis) {<a name="line.233"></a>
<FONT color="green">234</FONT>    <a name="line.234"></a>
<FONT color="green">235</FONT>            GeneralPath generalPath = new GeneralPath();<a name="line.235"></a>
<FONT color="green">236</FONT>            double transX = horizontalAxis.valueToJava2D(<a name="line.236"></a>
<FONT color="green">237</FONT>                this.xValue[0], dataArea, RectangleEdge.BOTTOM<a name="line.237"></a>
<FONT color="green">238</FONT>            );<a name="line.238"></a>
<FONT color="green">239</FONT>            double transY = verticalAxis.valueToJava2D(<a name="line.239"></a>
<FONT color="green">240</FONT>                this.yValue[0], dataArea, RectangleEdge.LEFT<a name="line.240"></a>
<FONT color="green">241</FONT>            );<a name="line.241"></a>
<FONT color="green">242</FONT>            generalPath.moveTo((float) transX, (float) transY);<a name="line.242"></a>
<FONT color="green">243</FONT>            for (int k = 0; k &lt; this.yValue.length; k++) {<a name="line.243"></a>
<FONT color="green">244</FONT>                transX = horizontalAxis.valueToJava2D(<a name="line.244"></a>
<FONT color="green">245</FONT>                    this.xValue[k], dataArea, RectangleEdge.BOTTOM<a name="line.245"></a>
<FONT color="green">246</FONT>                );<a name="line.246"></a>
<FONT color="green">247</FONT>                transY = verticalAxis.valueToJava2D(<a name="line.247"></a>
<FONT color="green">248</FONT>                    this.yValue[k], dataArea, RectangleEdge.LEFT<a name="line.248"></a>
<FONT color="green">249</FONT>                );<a name="line.249"></a>
<FONT color="green">250</FONT>                generalPath.lineTo((float) transX, (float) transY);<a name="line.250"></a>
<FONT color="green">251</FONT>            }<a name="line.251"></a>
<FONT color="green">252</FONT>            generalPath.closePath();<a name="line.252"></a>
<FONT color="green">253</FONT>    <a name="line.253"></a>
<FONT color="green">254</FONT>            return generalPath;<a name="line.254"></a>
<FONT color="green">255</FONT>    <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>         * Returns the composite.<a name="line.259"></a>
<FONT color="green">260</FONT>         * <a name="line.260"></a>
<FONT color="green">261</FONT>         * @return Composite<a name="line.261"></a>
<FONT color="green">262</FONT>         */<a name="line.262"></a>
<FONT color="green">263</FONT>        public Composite getComposite() {<a name="line.263"></a>
<FONT color="green">264</FONT>            return this.composite;<a name="line.264"></a>
<FONT color="green">265</FONT>        }<a name="line.265"></a>
<FONT color="green">266</FONT>    <a name="line.266"></a>
<FONT color="green">267</FONT>        /**<a name="line.267"></a>
<FONT color="green">268</FONT>         * Returns the drawPaint.<a name="line.268"></a>
<FONT color="green">269</FONT>         * <a name="line.269"></a>
<FONT color="green">270</FONT>         * @return Paint<a name="line.270"></a>
<FONT color="green">271</FONT>         */<a name="line.271"></a>
<FONT color="green">272</FONT>        public Paint getDrawPaint() {<a name="line.272"></a>
<FONT color="green">273</FONT>            return this.drawPaint;<a name="line.273"></a>
<FONT color="green">274</FONT>        }<a name="line.274"></a>
<FONT color="green">275</FONT>    <a name="line.275"></a>
<FONT color="green">276</FONT>        /**<a name="line.276"></a>
<FONT color="green">277</FONT>         * Returns the drawPath.<a name="line.277"></a>
<FONT color="green">278</FONT>         * <a name="line.278"></a>
<FONT color="green">279</FONT>         * @return boolean<a name="line.279"></a>
<FONT color="green">280</FONT>         */<a name="line.280"></a>
<FONT color="green">281</FONT>        public boolean isDrawPath() {<a name="line.281"></a>
<FONT color="green">282</FONT>            return this.drawPath;<a name="line.282"></a>
<FONT color="green">283</FONT>        }<a name="line.283"></a>
<FONT color="green">284</FONT>    <a name="line.284"></a>
<FONT color="green">285</FONT>        /**<a name="line.285"></a>
<FONT color="green">286</FONT>         * Returns the drawStroke.<a name="line.286"></a>
<FONT color="green">287</FONT>         * <a name="line.287"></a>
<FONT color="green">288</FONT>         * @return Stroke<a name="line.288"></a>
<FONT color="green">289</FONT>         */<a name="line.289"></a>
<FONT color="green">290</FONT>        public Stroke getDrawStroke() {<a name="line.290"></a>
<FONT color="green">291</FONT>            return this.drawStroke;<a name="line.291"></a>
<FONT color="green">292</FONT>        }<a name="line.292"></a>
<FONT color="green">293</FONT>    <a name="line.293"></a>
<FONT color="green">294</FONT>        /**<a name="line.294"></a>
<FONT color="green">295</FONT>         * Returns the fillPaint.<a name="line.295"></a>
<FONT color="green">296</FONT>         * <a name="line.296"></a>
<FONT color="green">297</FONT>         * @return Paint<a name="line.297"></a>
<FONT color="green">298</FONT>         */<a name="line.298"></a>
<FONT color="green">299</FONT>        public Paint getFillPaint() {<a name="line.299"></a>
<FONT color="green">300</FONT>            return this.fillPaint;<a name="line.300"></a>
<FONT color="green">301</FONT>        }<a name="line.301"></a>
<FONT color="green">302</FONT>    <a name="line.302"></a>
<FONT color="green">303</FONT>        /**<a name="line.303"></a>
<FONT color="green">304</FONT>         * Returns the fillPath.<a name="line.304"></a>
<FONT color="green">305</FONT>         * <a name="line.305"></a>
<FONT color="green">306</FONT>         * @return boolean<a name="line.306"></a>
<FONT color="green">307</FONT>         */<a name="line.307"></a>
<FONT color="green">308</FONT>        public boolean isFillPath() {<a name="line.308"></a>
<FONT color="green">309</FONT>            return this.fillPath;<a name="line.309"></a>
<FONT color="green">310</FONT>        }<a name="line.310"></a>
<FONT color="green">311</FONT>    <a name="line.311"></a>
<FONT color="green">312</FONT>        /**<a name="line.312"></a>
<FONT color="green">313</FONT>         * Returns the xValue.<a name="line.313"></a>
<FONT color="green">314</FONT>         * <a name="line.314"></a>
<FONT color="green">315</FONT>         * @return double[]<a name="line.315"></a>
<FONT color="green">316</FONT>         */<a name="line.316"></a>
<FONT color="green">317</FONT>        public double[] getXValue() {<a name="line.317"></a>
<FONT color="green">318</FONT>            return this.xValue;<a name="line.318"></a>
<FONT color="green">319</FONT>        }<a name="line.319"></a>
<FONT color="green">320</FONT>    <a name="line.320"></a>
<FONT color="green">321</FONT>        /**<a name="line.321"></a>
<FONT color="green">322</FONT>         * Returns the yValue.<a name="line.322"></a>
<FONT color="green">323</FONT>         * <a name="line.323"></a>
<FONT color="green">324</FONT>         * @return double[]<a name="line.324"></a>
<FONT color="green">325</FONT>         */<a name="line.325"></a>
<FONT color="green">326</FONT>        public double[] getYValue() {<a name="line.326"></a>
<FONT color="green">327</FONT>            return this.yValue;<a name="line.327"></a>
<FONT color="green">328</FONT>        }<a name="line.328"></a>
<FONT color="green">329</FONT>    <a name="line.329"></a>
<FONT color="green">330</FONT>        /**<a name="line.330"></a>
<FONT color="green">331</FONT>         * Sets the composite.<a name="line.331"></a>
<FONT color="green">332</FONT>         * <a name="line.332"></a>
<FONT color="green">333</FONT>         * @param composite The composite to set<a name="line.333"></a>