moduloaxis.html

jfreechart1。0。2的api。

<FONT color="green">157</FONT>                if (v &gt; cutoff) {<a name="line.157"></a>
<FONT color="green">158</FONT>                    result = transStart(v, area, edge, length1, length2);<a name="line.158"></a>
<FONT color="green">159</FONT>                }<a name="line.159"></a>
<FONT color="green">160</FONT>                else {<a name="line.160"></a>
<FONT color="green">161</FONT>                    result = transEnd(v, area, edge, length1, length2);<a name="line.161"></a>
<FONT color="green">162</FONT>                }<a name="line.162"></a>
<FONT color="green">163</FONT>            }<a name="line.163"></a>
<FONT color="green">164</FONT>            return result;<a name="line.164"></a>
<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 regular translation from a data value to a Java2D value.<a name="line.168"></a>
<FONT color="green">169</FONT>         * <a name="line.169"></a>
<FONT color="green">170</FONT>         * @param value  the value.<a name="line.170"></a>
<FONT color="green">171</FONT>         * @param area  the data area.<a name="line.171"></a>
<FONT color="green">172</FONT>         * @param edge  the edge along which the axis lies.<a name="line.172"></a>
<FONT color="green">173</FONT>         * <a name="line.173"></a>
<FONT color="green">174</FONT>         * @return The Java2D coordinate.<a name="line.174"></a>
<FONT color="green">175</FONT>         */<a name="line.175"></a>
<FONT color="green">176</FONT>        private double trans(double value, Rectangle2D area, RectangleEdge edge) {<a name="line.176"></a>
<FONT color="green">177</FONT>            double min = 0.0;<a name="line.177"></a>
<FONT color="green">178</FONT>            double max = 0.0;<a name="line.178"></a>
<FONT color="green">179</FONT>            if (RectangleEdge.isTopOrBottom(edge)) {<a name="line.179"></a>
<FONT color="green">180</FONT>                min = area.getX();<a name="line.180"></a>
<FONT color="green">181</FONT>                max = area.getX() + area.getWidth();<a name="line.181"></a>
<FONT color="green">182</FONT>            }<a name="line.182"></a>
<FONT color="green">183</FONT>            else if (RectangleEdge.isLeftOrRight(edge)) {<a name="line.183"></a>
<FONT color="green">184</FONT>                min = area.getMaxY();<a name="line.184"></a>
<FONT color="green">185</FONT>                max = area.getMaxY() - area.getHeight();<a name="line.185"></a>
<FONT color="green">186</FONT>            }<a name="line.186"></a>
<FONT color="green">187</FONT>            if (isInverted()) {<a name="line.187"></a>
<FONT color="green">188</FONT>                return max - ((value - this.displayStart) <a name="line.188"></a>
<FONT color="green">189</FONT>                       / (this.displayEnd - this.displayStart)) * (max - min);<a name="line.189"></a>
<FONT color="green">190</FONT>            }<a name="line.190"></a>
<FONT color="green">191</FONT>            else {<a name="line.191"></a>
<FONT color="green">192</FONT>                return min + ((value - this.displayStart) <a name="line.192"></a>
<FONT color="green">193</FONT>                       / (this.displayEnd - this.displayStart)) * (max - min);<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>    <a name="line.197"></a>
<FONT color="green">198</FONT>        /**<a name="line.198"></a>
<FONT color="green">199</FONT>         * Translates a data value to a Java2D value for the first section of the <a name="line.199"></a>
<FONT color="green">200</FONT>         * axis.<a name="line.200"></a>
<FONT color="green">201</FONT>         * <a name="line.201"></a>
<FONT color="green">202</FONT>         * @param value  the value.<a name="line.202"></a>
<FONT color="green">203</FONT>         * @param area  the data area.<a name="line.203"></a>
<FONT color="green">204</FONT>         * @param edge  the edge along which the axis lies.<a name="line.204"></a>
<FONT color="green">205</FONT>         * @param length1  the length of the first section.<a name="line.205"></a>
<FONT color="green">206</FONT>         * @param length2  the length of the second section.<a name="line.206"></a>
<FONT color="green">207</FONT>         * <a name="line.207"></a>
<FONT color="green">208</FONT>         * @return The Java2D coordinate.<a name="line.208"></a>
<FONT color="green">209</FONT>         */<a name="line.209"></a>
<FONT color="green">210</FONT>        private double transStart(double value, Rectangle2D area, <a name="line.210"></a>
<FONT color="green">211</FONT>                                  RectangleEdge edge,<a name="line.211"></a>
<FONT color="green">212</FONT>                                  double length1, double length2) {<a name="line.212"></a>
<FONT color="green">213</FONT>            double min = 0.0;<a name="line.213"></a>
<FONT color="green">214</FONT>            double max = 0.0;<a name="line.214"></a>
<FONT color="green">215</FONT>            if (RectangleEdge.isTopOrBottom(edge)) {<a name="line.215"></a>
<FONT color="green">216</FONT>                min = area.getX();<a name="line.216"></a>
<FONT color="green">217</FONT>                max = area.getX() + area.getWidth() * length1 / (length1 + length2);<a name="line.217"></a>
<FONT color="green">218</FONT>            }<a name="line.218"></a>
<FONT color="green">219</FONT>            else if (RectangleEdge.isLeftOrRight(edge)) {<a name="line.219"></a>
<FONT color="green">220</FONT>                min = area.getMaxY();<a name="line.220"></a>
<FONT color="green">221</FONT>                max = area.getMaxY() - area.getHeight() * length1 <a name="line.221"></a>
<FONT color="green">222</FONT>                      / (length1 + length2);<a name="line.222"></a>
<FONT color="green">223</FONT>            }<a name="line.223"></a>
<FONT color="green">224</FONT>            if (isInverted()) {<a name="line.224"></a>
<FONT color="green">225</FONT>                return max - ((value - this.displayStart) <a name="line.225"></a>
<FONT color="green">226</FONT>                    / (this.fixedRange.getUpperBound() - this.displayStart)) <a name="line.226"></a>
<FONT color="green">227</FONT>                    * (max - min);<a name="line.227"></a>
<FONT color="green">228</FONT>            }<a name="line.228"></a>
<FONT color="green">229</FONT>            else {<a name="line.229"></a>
<FONT color="green">230</FONT>                return min + ((value - this.displayStart) <a name="line.230"></a>
<FONT color="green">231</FONT>                    / (this.fixedRange.getUpperBound() - this.displayStart)) <a name="line.231"></a>
<FONT color="green">232</FONT>                    * (max - min);<a name="line.232"></a>
<FONT color="green">233</FONT>            }<a name="line.233"></a>
<FONT color="green">234</FONT>    <a name="line.234"></a>
<FONT color="green">235</FONT>        }<a name="line.235"></a>
<FONT color="green">236</FONT>        <a name="line.236"></a>
<FONT color="green">237</FONT>        /**<a name="line.237"></a>
<FONT color="green">238</FONT>         * Translates a data value to a Java2D value for the second section of the <a name="line.238"></a>
<FONT color="green">239</FONT>         * axis.<a name="line.239"></a>
<FONT color="green">240</FONT>         * <a name="line.240"></a>
<FONT color="green">241</FONT>         * @param value  the value.<a name="line.241"></a>
<FONT color="green">242</FONT>         * @param area  the data area.<a name="line.242"></a>
<FONT color="green">243</FONT>         * @param edge  the edge along which the axis lies.<a name="line.243"></a>
<FONT color="green">244</FONT>         * @param length1  the length of the first section.<a name="line.244"></a>
<FONT color="green">245</FONT>         * @param length2  the length of the second section.<a name="line.245"></a>
<FONT color="green">246</FONT>         * <a name="line.246"></a>
<FONT color="green">247</FONT>         * @return The Java2D coordinate.<a name="line.247"></a>
<FONT color="green">248</FONT>         */<a name="line.248"></a>
<FONT color="green">249</FONT>        private double transEnd(double value, Rectangle2D area, RectangleEdge edge,<a name="line.249"></a>
<FONT color="green">250</FONT>                                double length1, double length2) {<a name="line.250"></a>
<FONT color="green">251</FONT>            double min = 0.0;<a name="line.251"></a>
<FONT color="green">252</FONT>            double max = 0.0;<a name="line.252"></a>
<FONT color="green">253</FONT>            if (RectangleEdge.isTopOrBottom(edge)) {<a name="line.253"></a>
<FONT color="green">254</FONT>                max = area.getMaxX();<a name="line.254"></a>
<FONT color="green">255</FONT>                min = area.getMaxX() - area.getWidth() * length2 <a name="line.255"></a>
<FONT color="green">256</FONT>                      / (length1 + length2);<a name="line.256"></a>
<FONT color="green">257</FONT>            }<a name="line.257"></a>
<FONT color="green">258</FONT>            else if (RectangleEdge.isLeftOrRight(edge)) {<a name="line.258"></a>
<FONT color="green">259</FONT>                max = area.getMinY();<a name="line.259"></a>
<FONT color="green">260</FONT>                min = area.getMinY() + area.getHeight() * length2 <a name="line.260"></a>
<FONT color="green">261</FONT>                      / (length1 + length2);<a name="line.261"></a>
<FONT color="green">262</FONT>            }<a name="line.262"></a>
<FONT color="green">263</FONT>            if (isInverted()) {<a name="line.263"></a>
<FONT color="green">264</FONT>                return max - ((value - this.fixedRange.getLowerBound()) <a name="line.264"></a>
<FONT color="green">265</FONT>                        / (this.displayEnd - this.fixedRange.getLowerBound())) <a name="line.265"></a>
<FONT color="green">266</FONT>                        * (max - min);<a name="line.266"></a>
<FONT color="green">267</FONT>            }<a name="line.267"></a>
<FONT color="green">268</FONT>            else {<a name="line.268"></a>
<FONT color="green">269</FONT>                return min + ((value - this.fixedRange.getLowerBound()) <a name="line.269"></a>
<FONT color="green">270</FONT>                        / (this.displayEnd - this.fixedRange.getLowerBound())) <a name="line.270"></a>
<FONT color="green">271</FONT>                        * (max - min);<a name="line.271"></a>
<FONT color="green">272</FONT>            }<a name="line.272"></a>
<FONT color="green">273</FONT>    <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>         * Maps a data value into the fixed range.<a name="line.277"></a>
<FONT color="green">278</FONT>         * <a name="line.278"></a>
<FONT color="green">279</FONT>         * @param value  the value.<a name="line.279"></a>
<FONT color="green">280</FONT>         * <a name="line.280"></a>
<FONT color="green">281</FONT>         * @return The mapped value.<a name="line.281"></a>
<FONT color="green">282</FONT>         */<a name="line.282"></a>
<FONT color="green">283</FONT>        private double mapValueToFixedRange(double value) {<a name="line.283"></a>
<FONT color="green">284</FONT>            double lower = this.fixedRange.getLowerBound();<a name="line.284"></a>
<FONT color="green">285</FONT>            double length = this.fixedRange.getLength();<a name="line.285"></a>
<FONT color="green">286</FONT>            if (value &lt; lower) {<a name="line.286"></a>
<FONT color="green">287</FONT>                return lower + length + ((value - lower) % length);<a name="line.287"></a>
<FONT color="green">288</FONT>            }<a name="line.288"></a>
<FONT color="green">289</FONT>            else {<a name="line.289"></a>
<FONT color="green">290</FONT>                return lower + ((value - lower) % length);<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>        <a name="line.293"></a>
<FONT color="green">294</FONT>        /**<a name="line.294"></a>
<FONT color="green">295</FONT>         * Translates a Java2D coordinate into a data value.<a name="line.295"></a>
<FONT color="green">296</FONT>         * <a name="line.296"></a>
<FONT color="green">297</FONT>         * @param java2DValue  the Java2D coordinate.<a name="line.297"></a>
<FONT color="green">298</FONT>         * @param area  the area.<a name="line.298"></a>
<FONT color="green">299</FONT>         * @param edge  the edge.<a name="line.299"></a>
<FONT color="green">300</FONT>         * <a name="line.300"></a>
<FONT color="green">301</FONT>         * @return The Java2D coordinate.<a name="line.301"></a>
<FONT color="green">302</FONT>         */<a name="line.302"></a>
<FONT color="green">303</FONT>        public double java2DToValue(double java2DValue, Rectangle2D area, <a name="line.303"></a>
<FONT color="green">304</FONT>                                    RectangleEdge edge) {<a name="line.304"></a>
<FONT color="green">305</FONT>            double result = 0.0;<a name="line.305"></a>
<FONT color="green">306</FONT>            if (this.displayStart &lt; this.displayEnd) {  // regular number axis<a name="line.306"></a>
<FONT color="green">307</FONT>                result = super.java2DToValue(java2DValue, area, edge);<a name="line.307"></a>
<FONT color="green">308</FONT>            }<a name="line.308"></a>
<FONT color="green">309</FONT>            else {  // displayStart &gt; displayEnd, need to handle split<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>            return result;<a name="line.312"></a>
<FONT color="green">313</FONT>        }<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>