1 /* ===========================================================
2 * JFreeChart : a free chart library for the Java(tm) platform
3 * ===========================================================
4 *
5 * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
6 *
7 * Project Info: http://www.jfree.org/jfreechart/index.html
8 *
9 * This library is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17 * License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22 * USA.
23 *
24 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25 * in the United States and other countries.]
26 *
27 * ---------------------
28 * WindItemRenderer.java
29 * ---------------------
30 * (C) Copyright 2001-2007, by Achilleus Mantzios and Contributors.
31 *
32 * Original Author: Achilleus Mantzios;
33 * Contributor(s): David Gilbert (for Object Refinery Limited);
34 *
35 * Changes
36 * -------
37 * 06-Feb-2002 : Version 1, based on code contributed by Achilleus
38 * Mantzios (DG);
39 * 28-Mar-2002 : Added a property change listener mechanism so that renderers
40 * no longer need to be immutable. Changed StrictMath --> Math
41 * to retain JDK1.2 compatibility (DG);
42 * 09-Apr-2002 : Changed return type of the drawItem method to void, reflecting
43 * the change in the XYItemRenderer method (DG);
44 * 01-Oct-2002 : Fixed errors reported by Checkstyle (DG);
45 * 21-Jan-2003 : Added new constructor (DG);
46 * 25-Mar-2003 : Implemented Serializable (DG);
47 * 01-May-2003 : Modified drawItem() method signature (DG);
48 * 20-Aug-2003 : Implemented Cloneable and PublicCloneable (DG);
49 * 16-Sep-2003 : Changed ChartRenderingInfo --> PlotRenderingInfo (DG);
50 * 25-Feb-2004 : Replaced CrosshairInfo with CrosshairState (DG);
51 * 15-Jul-2004 : Switched getX() with getXValue() and getY() with
52 * getYValue() (DG);
53 * ------------- JFREECHART 1.0.x ---------------------------------------------
54 * 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG);
55 *
56 */
57
58 package org.jfree.chart.renderer.xy;
59
60 import java.awt.Color;
61 import java.awt.Font;
62 import java.awt.Graphics2D;
63 import java.awt.Paint;
64 import java.awt.Stroke;
65 import java.awt.geom.Line2D;
66 import java.awt.geom.Rectangle2D;
67 import java.io.Serializable;
68
69 import org.jfree.chart.axis.ValueAxis;
70 import org.jfree.chart.plot.CrosshairState;
71 import org.jfree.chart.plot.PlotRenderingInfo;
72 import org.jfree.chart.plot.XYPlot;
73 import org.jfree.data.xy.WindDataset;
74 import org.jfree.data.xy.XYDataset;
75 import org.jfree.ui.RectangleEdge;
76 import org.jfree.util.PublicCloneable;
77
78 /**
79 * A specialised renderer for displaying wind intensity/direction data.
80 */
81 public class WindItemRenderer extends AbstractXYItemRenderer
82 implements XYItemRenderer,
83 Cloneable,
84 PublicCloneable,
85 Serializable {
86
87 /** For serialization. */
88 private static final long serialVersionUID = 8078914101916976844L;
89
90 /**
91 * Creates a new renderer.
92 */
93 public WindItemRenderer() {
94 super();
95 }
96
97 /**
98 * Draws the visual representation of a single data item.
99 *
100 * @param g2 the graphics device.
101 * @param state the renderer state.
102 * @param plotArea the area within which the plot is being drawn.
103 * @param info optional information collection.
104 * @param plot the plot (can be used to obtain standard color
105 * information etc).
106 * @param domainAxis the horizontal axis.
107 * @param rangeAxis the vertical axis.
108 * @param dataset the dataset.
109 * @param series the series index (zero-based).
110 * @param item the item index (zero-based).
111 * @param crosshairState crosshair information for the plot
112 * (<code>null</code> permitted).
113 * @param pass the pass index.
114 */
115 public void drawItem(Graphics2D g2,
116 XYItemRendererState state,
117 Rectangle2D plotArea,
118 PlotRenderingInfo info,
119 XYPlot plot,
120 ValueAxis domainAxis,
121 ValueAxis rangeAxis,
122 XYDataset dataset,
123 int series,
124 int item,
125 CrosshairState crosshairState,
126 int pass) {
127
128 WindDataset windData = (WindDataset) dataset;
129
130 Paint seriesPaint = getItemPaint(series, item);
131 Stroke seriesStroke = getItemStroke(series, item);
132 g2.setPaint(seriesPaint);
133 g2.setStroke(seriesStroke);
134
135 // get the data point...
136
137 Number x = windData.getX(series, item);
138 Number windDir = windData.getWindDirection(series, item);
139 Number wforce = windData.getWindForce(series, item);
140 double windForce = wforce.doubleValue();
141
142 double wdirt = Math.toRadians(windDir.doubleValue() * (-30.0) - 90.0);
143
144 double ax1, ax2, ay1, ay2, rax2, ray2;
145
146 RectangleEdge domainAxisLocation = plot.getDomainAxisEdge();
147 RectangleEdge rangeAxisLocation = plot.getRangeAxisEdge();
148 ax1 = domainAxis.valueToJava2D(x.doubleValue(), plotArea,
149 domainAxisLocation);
150 ay1 = rangeAxis.valueToJava2D(0.0, plotArea, rangeAxisLocation);
151
152 rax2 = x.doubleValue() + (windForce * Math.cos(wdirt) * 8000000.0);
153 ray2 = windForce * Math.sin(wdirt);
154
155 ax2 = domainAxis.valueToJava2D(rax2, plotArea, domainAxisLocation);
156 ay2 = rangeAxis.valueToJava2D(ray2, plotArea, rangeAxisLocation);
157
158 int diri = windDir.intValue();
159 int forcei = wforce.intValue();
160 String dirforce = diri + "-" + forcei;
161 Line2D line = new Line2D.Double(ax1, ay1, ax2, ay2);
162
163 g2.draw(line);
164 g2.setPaint(Color.blue);
165 g2.setFont(new Font("foo", 1, 9));
166
167 g2.drawString(dirforce, (float) ax1, (float) ay1);
168
169 g2.setPaint(seriesPaint);
170 g2.setStroke(seriesStroke);
171
172 double alx2, aly2, arx2, ary2;
173 double ralx2, raly2, rarx2, rary2;
174
175 double aldir = Math.toRadians(windDir.doubleValue()
176 * (-30.0) - 90.0 - 5.0);
177 ralx2 = wforce.doubleValue() * Math.cos(aldir) * 8000000 * 0.8
178 + x.doubleValue();
179 raly2 = wforce.doubleValue() * Math.sin(aldir) * 0.8;
180
181 alx2 = domainAxis.valueToJava2D(ralx2, plotArea, domainAxisLocation);
182 aly2 = rangeAxis.valueToJava2D(raly2, plotArea, rangeAxisLocation);
183
184 line = new Line2D.Double(alx2, aly2, ax2, ay2);
185 g2.draw(line);
186
187 double ardir = Math.toRadians(windDir.doubleValue()
188 * (-30.0) - 90.0 + 5.0);
189 rarx2 = wforce.doubleValue() * Math.cos(ardir) * 8000000 * 0.8
190 + x.doubleValue();
191 rary2 = wforce.doubleValue() * Math.sin(ardir) * 0.8;
192
193 arx2 = domainAxis.valueToJava2D(rarx2, plotArea, domainAxisLocation);
194 ary2 = rangeAxis.valueToJava2D(rary2, plotArea, rangeAxisLocation);
195
196 line = new Line2D.Double(arx2, ary2, ax2, ay2);
197 g2.draw(line);
198
199 }
200
201 /**
202 * Returns a clone of the renderer.
203 *
204 * @return A clone.
205 *
206 * @throws CloneNotSupportedException if the renderer cannot be cloned.
207 */
208 public Object clone() throws CloneNotSupportedException {
209 return super.clone();
210 }
211
212 }
Save This Page