📄 defaultwinddataset.html
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<FONT color="green">165</FONT> }<a name="line.165"></a><FONT color="green">166</FONT> <a name="line.166"></a><FONT color="green">167</FONT> }<a name="line.167"></a><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> * Returns the number of series in the dataset.<a name="line.170"></a><FONT color="green">171</FONT> * <a name="line.171"></a><FONT color="green">172</FONT> * @return The series count.<a name="line.172"></a><FONT color="green">173</FONT> */<a name="line.173"></a><FONT color="green">174</FONT> public int getSeriesCount() {<a name="line.174"></a><FONT color="green">175</FONT> return this.allSeriesData.size();<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 the number of items in a series.<a name="line.179"></a><FONT color="green">180</FONT> * <a name="line.180"></a><FONT color="green">181</FONT> * @param series the series (zero-based index).<a name="line.181"></a><FONT color="green">182</FONT> * <a name="line.182"></a><FONT color="green">183</FONT> * @return The item count.<a name="line.183"></a><FONT color="green">184</FONT> */<a name="line.184"></a><FONT color="green">185</FONT> public int getItemCount(int series) {<a name="line.185"></a><FONT color="green">186</FONT> if (series < 0 || series >= getSeriesCount()) {<a name="line.186"></a><FONT color="green">187</FONT> throw new IllegalArgumentException("Invalid series index: " <a name="line.187"></a><FONT color="green">188</FONT> + series);<a name="line.188"></a><FONT color="green">189</FONT> }<a name="line.189"></a><FONT color="green">190</FONT> List oneSeriesData = (List) this.allSeriesData.get(series);<a name="line.190"></a><FONT color="green">191</FONT> return oneSeriesData.size();<a name="line.191"></a><FONT color="green">192</FONT> }<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> * Returns the key for a series.<a name="line.195"></a><FONT color="green">196</FONT> * <a name="line.196"></a><FONT color="green">197</FONT> * @param series the series (zero-based index).<a name="line.197"></a><FONT color="green">198</FONT> * <a name="line.198"></a><FONT color="green">199</FONT> * @return The series key.<a name="line.199"></a><FONT color="green">200</FONT> */<a name="line.200"></a><FONT color="green">201</FONT> public Comparable getSeriesKey(int series) {<a name="line.201"></a><FONT color="green">202</FONT> if (series < 0 || series >= getSeriesCount()) {<a name="line.202"></a><FONT color="green">203</FONT> throw new IllegalArgumentException("Invalid series index: " <a name="line.203"></a><FONT color="green">204</FONT> + series);<a name="line.204"></a><FONT color="green">205</FONT> }<a name="line.205"></a><FONT color="green">206</FONT> return (Comparable) this.seriesKeys.get(series);<a name="line.206"></a><FONT color="green">207</FONT> }<a name="line.207"></a><FONT color="green">208</FONT> <a name="line.208"></a><FONT color="green">209</FONT> /**<a name="line.209"></a><FONT color="green">210</FONT> * Returns the x-value for one item within a series. This should represent<a name="line.210"></a><FONT color="green">211</FONT> * a point in time, encoded as milliseconds in the same way as<a name="line.211"></a><FONT color="green">212</FONT> * java.util.Date.<a name="line.212"></a><FONT color="green">213</FONT> *<a name="line.213"></a><FONT color="green">214</FONT> * @param series the series (zero-based index).<a name="line.214"></a><FONT color="green">215</FONT> * @param item the item (zero-based index).<a name="line.215"></a><FONT color="green">216</FONT> * <a name="line.216"></a><FONT color="green">217</FONT> * @return The x-value for the item within the series.<a name="line.217"></a><FONT color="green">218</FONT> */<a name="line.218"></a><FONT color="green">219</FONT> public Number getX(int series, int item) {<a name="line.219"></a><FONT color="green">220</FONT> List oneSeriesData = (List) this.allSeriesData.get(series);<a name="line.220"></a><FONT color="green">221</FONT> WindDataItem windItem = (WindDataItem) oneSeriesData.get(item);<a name="line.221"></a><FONT color="green">222</FONT> return windItem.getX();<a name="line.222"></a><FONT color="green">223</FONT> }<a name="line.223"></a><FONT color="green">224</FONT> <a name="line.224"></a><FONT color="green">225</FONT> /**<a name="line.225"></a><FONT color="green">226</FONT> * Returns the y-value for one item within a series. This maps to the<a name="line.226"></a><FONT color="green">227</FONT> * {@link #getWindForce(int, int)} method and is implemented because <a name="line.227"></a><FONT color="green">228</FONT> * <code>WindDataset</code> is an extension of {@link XYDataset}.<a name="line.228"></a><FONT color="green">229</FONT> *<a name="line.229"></a><FONT color="green">230</FONT> * @param series the series (zero-based index).<a name="line.230"></a><FONT color="green">231</FONT> * @param item the item (zero-based index).<a name="line.231"></a><FONT color="green">232</FONT> * <a name="line.232"></a><FONT color="green">233</FONT> * @return The y-value for the item within the series.<a name="line.233"></a><FONT color="green">234</FONT> */<a name="line.234"></a><FONT color="green">235</FONT> public Number getY(int series, int item) {<a name="line.235"></a><FONT color="green">236</FONT> return getWindForce(series, item);<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> * Returns the wind direction for one item within a series. This is a<a name="line.240"></a><FONT color="green">241</FONT> * number between 0 and 12, like the numbers on an upside-down clock face.<a name="line.241"></a><FONT color="green">242</FONT> * <a name="line.242"></a><FONT color="green">243</FONT> * @param series the series (zero-based index).<a name="line.243"></a><FONT color="green">244</FONT> * @param item the item (zero-based index).<a name="line.244"></a><FONT color="green">245</FONT> * <a name="line.245"></a><FONT color="green">246</FONT> * @return The wind direction for the item within the series.<a name="line.246"></a><FONT color="green">247</FONT> */<a name="line.247"></a><FONT color="green">248</FONT> public Number getWindDirection(int series, int item) {<a name="line.248"></a><FONT color="green">249</FONT> List oneSeriesData = (List) this.allSeriesData.get(series);<a name="line.249"></a><FONT color="green">250</FONT> WindDataItem windItem = (WindDataItem) oneSeriesData.get(item);<a name="line.250"></a><FONT color="green">251</FONT> return windItem.getWindDirection();<a name="line.251"></a><FONT color="green">252</FONT> }<a name="line.252"></a><FONT color="green">253</FONT> <a name="line.253"></a><FONT color="green">254</FONT> /**<a name="line.254"></a><FONT color="green">255</FONT> * Returns the wind force for one item within a series. This is a number<a name="line.255"></a><FONT color="green">256</FONT> * between 0 and 12, as defined by the Beaufort scale.<a name="line.256"></a><FONT color="green">257</FONT> * <a name="line.257"></a><FONT color="green">258</FONT> * @param series the series (zero-based index).<a name="line.258"></a><FONT color="green">259</FONT> * @param item the item (zero-based index).<a name="line.259"></a><FONT color="green">260</FONT> * <a name="line.260"></a><FONT color="green">261</FONT> * @return The wind force for the item within the series.<a name="line.261"></a><FONT color="green">262</FONT> */<a name="line.262"></a><FONT color="green">263</FONT> public Number getWindForce(int series, int item) {<a name="line.263"></a><FONT color="green">264</FONT> List oneSeriesData = (List) this.allSeriesData.get(series);<a name="line.264"></a><FONT color="green">265</FONT> WindDataItem windItem = (WindDataItem) oneSeriesData.get(item);<a name="line.265"></a><FONT color="green">266</FONT> return windItem.getWindForce();<a name="line.266"></a><FONT color="green">267</FONT> }<a name="line.267"></a><FONT color="green">268</FONT> <a name="line.268"></a><FONT color="green">269</FONT> /**<a name="line.269"></a><FONT color="green">270</FONT> * Utility method for automatically generating series names.<a name="line.270"></a><FONT color="green">271</FONT> * <a name="line.271"></a><FONT color="green">272</FONT> * @param data the wind data (<code>null</code> not permitted).<a name="line.272"></a><FONT color="green">273</FONT> *<a name="line.273"></a><FONT color="green">274</FONT> * @return An array of <i>Series N</i> with N = { 1 .. data.length }.<a name="line.274"></a><FONT color="green">275</FONT> * <a name="line.275"></a><FONT color="green">276</FONT> * @throws NullPointerException if <code>data</code> is <code>null</code>.<a name="line.276"></a><FONT color="green">277</FONT> */<a name="line.277"></a><FONT color="green">278</FONT> public static List seriesNameListFromDataArray(Object[][] data) {<a name="line.278"></a><FONT color="green">279</FONT> <a name="line.279"></a><FONT color="green">280</FONT> int seriesCount = data.length;<a name="line.280"></a><FONT color="green">281</FONT> List seriesNameList = new java.util.ArrayList(seriesCount);<a name="line.281"></a><FONT color="green">282</FONT> for (int i = 0; i < seriesCount; i++) {<a name="line.282"></a><FONT color="green">283</FONT> seriesNameList.add("Series " + (i + 1));<a name="line.283"></a><FONT color="green">284</FONT> }<a name="line.284"></a><FONT color="green">285</FONT> return seriesNameList;<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> <a name="line.288"></a><FONT color="green">289</FONT> /**<a name="line.289"></a><FONT color="green">290</FONT> * Checks this <code>WindDataset</code> for equality with an arbitrary<a name="line.290"></a><FONT color="green">291</FONT> * object. This method returns <code>true</code> if and only if:<a name="line.291"></a><FONT color="green">292</FONT> * <ul><a name="line.292"></a><FONT color="green">293</FONT> * <li><code>obj</code> is not <code>null</code>;</li><a name="line.293"></a><FONT color="green">294</FONT> * <li><code>obj</code> is an instance of <a name="line.294"></a><FONT color="green">295</FONT> * <code>DefaultWindDataset</code>;</li><a name="line.295"></a><FONT color="green">296</FONT> * <li>both datasets have the same number of series containing identical<a name="line.296"></a><FONT color="green">297</FONT> * values.</li><a name="line.297"></a><FONT color="green">298</FONT> * <ul><a name="line.298"></a><FONT color="green">299</FONT> * <a name="line.299"></a><FONT color="green">300</FONT> * @param obj the object (<code>null</code> permitted).<a name="line.300"></a><FONT color="green">301</FONT> * <a name="line.301"></a><FONT color="green">302</FONT> * @return A boolean.<a name="line.302"></a><FONT color="green">303</FONT> */<a name="line.303"></a><FONT color="green">304</FONT> public boolean equals(Object obj) {<a name="line.304"></a><FONT color="green">305</FONT> if (this == obj) {<a name="line.305"></a><FONT color="green">306</FONT> return true;<a name="line.306"></a><FONT color="green">307</FONT> }<a name="line.307"></a><FONT color="green">308</FONT> if (! (obj instanceof DefaultWindDataset)) {<a name="line.308"></a><FONT color="green">309</FONT> return false;<a name="line.309"></a><FONT color="green">310</FONT> }<a name="line.310"></a><FONT color="green">311</FONT> DefaultWindDataset that = (DefaultWindDataset) obj;<a name="line.311"></a><FONT color="green">312</FONT> if (!this.seriesKeys.equals(that.seriesKeys)) {<a name="line.312"></a><FONT color="green">313</FONT> return false;<a name="line.313"></a><FONT color="green">314</FONT> }<a name="line.314"></a><FONT color="green">315</FONT> if (!this.allSeriesData.equals(that.allSeriesData)) {<a name="line.315"></a><FONT color="green">316</FONT> return false;<a name="line.316"></a><FONT color="green">317</FONT> }<a name="line.317"></a><FONT color="green">318</FONT> return true;<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> <a name="line.322"></a><FONT color="green">323</FONT> /**<a name="line.323"></a><FONT color="green">324</FONT> * A wind data item.<a name="line.324"></a><FONT color="green">325</FONT> *<a name="line.325"></a><FONT color="green">326</FONT> * @author Achilleus Mantzios<a name="line.326"></a><FONT color="green">327</FONT> */<a name="line.327"></a><FONT color="green">328</FONT> class WindDataItem implements Comparable, Serializable {<a name="line.328"></a><FONT color="green">329</FONT> <a name="line.329"></a><FONT color="green">330</FONT> /** The x-value. */<a name="line.330"></a><FONT color="green">331</FONT> private Number x;<a name="line.331"></a>⌨️ 快捷键说明
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