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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: }