| Frames | No Frames |
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: * $Id: WindItemRenderer.java,v 1.3.2.2 2007/02/02 15:51:30 mungady Exp $ 36: * 37: * Changes 38: * ------- 39: * 06-Feb-2002 : Version 1, based on code contributed by Achilleus 40: * Mantzios (DG); 41: * 28-Mar-2002 : Added a property change listener mechanism so that renderers 42: * no longer need to be immutable. Changed StrictMath --> Math 43: * to retain JDK1.2 compatibility (DG); 44: * 09-Apr-2002 : Changed return type of the drawItem method to void, reflecting 45: * the change in the XYItemRenderer method (DG); 46: * 01-Oct-2002 : Fixed errors reported by Checkstyle (DG); 47: * 21-Jan-2003 : Added new constructor (DG); 48: * 25-Mar-2003 : Implemented Serializable (DG); 49: * 01-May-2003 : Modified drawItem() method signature (DG); 50: * 20-Aug-2003 : Implemented Cloneable and PublicCloneable (DG); 51: * 16-Sep-2003 : Changed ChartRenderingInfo --> PlotRenderingInfo (DG); 52: * 25-Feb-2004 : Replaced CrosshairInfo with CrosshairState (DG); 53: * 15-Jul-2004 : Switched getX() with getXValue() and getY() with 54: * getYValue() (DG); 55: * ------------- JFREECHART 1.0.x --------------------------------------------- 56: * 02-Feb-2007 : Removed author tags from all over JFreeChart sources (DG); 57: * 58: */ 59: 60: package org.jfree.chart.renderer.xy; 61: 62: import java.awt.Color; 63: import java.awt.Font; 64: import java.awt.Graphics2D; 65: import java.awt.Paint; 66: import java.awt.Stroke; 67: import java.awt.geom.Line2D; 68: import java.awt.geom.Rectangle2D; 69: import java.io.Serializable; 70: 71: import org.jfree.chart.axis.ValueAxis; 72: import org.jfree.chart.plot.CrosshairState; 73: import org.jfree.chart.plot.PlotRenderingInfo; 74: import org.jfree.chart.plot.XYPlot; 75: import org.jfree.data.xy.WindDataset; 76: import org.jfree.data.xy.XYDataset; 77: import org.jfree.ui.RectangleEdge; 78: import org.jfree.util.PublicCloneable; 79: 80: /** 81: * A specialised renderer for displaying wind intensity/direction data. 82: */ 83: public class WindItemRenderer extends AbstractXYItemRenderer 84: implements XYItemRenderer, 85: Cloneable, 86: PublicCloneable, 87: Serializable { 88: 89: /** For serialization. */ 90: private static final long serialVersionUID = 8078914101916976844L; 91: 92: /** 93: * Creates a new renderer. 94: */ 95: public WindItemRenderer() { 96: super(); 97: } 98: 99: /** 100: * Draws the visual representation of a single data item. 101: * 102: * @param g2 the graphics device. 103: * @param state the renderer state. 104: * @param plotArea the area within which the plot is being drawn. 105: * @param info optional information collection. 106: * @param plot the plot (can be used to obtain standard color 107: * information etc). 108: * @param domainAxis the horizontal axis. 109: * @param rangeAxis the vertical axis. 110: * @param dataset the dataset. 111: * @param series the series index (zero-based). 112: * @param item the item index (zero-based). 113: * @param crosshairState crosshair information for the plot 114: * (<code>null</code> permitted). 115: * @param pass the pass index. 116: */ 117: public void drawItem(Graphics2D g2, 118: XYItemRendererState state, 119: Rectangle2D plotArea, 120: PlotRenderingInfo info, 121: XYPlot plot, 122: ValueAxis domainAxis, 123: ValueAxis rangeAxis, 124: XYDataset dataset, 125: int series, 126: int item, 127: CrosshairState crosshairState, 128: int pass) { 129: 130: WindDataset windData = (WindDataset) dataset; 131: 132: Paint seriesPaint = getItemPaint(series, item); 133: Stroke seriesStroke = getItemStroke(series, item); 134: g2.setPaint(seriesPaint); 135: g2.setStroke(seriesStroke); 136: 137: // get the data point... 138: 139: Number x = windData.getX(series, item); 140: Number windDir = windData.getWindDirection(series, item); 141: Number wforce = windData.getWindForce(series, item); 142: double windForce = wforce.doubleValue(); 143: 144: double wdirt = Math.toRadians(windDir.doubleValue() * (-30.0) - 90.0); 145: 146: double ax1, ax2, ay1, ay2, rax2, ray2; 147: 148: RectangleEdge domainAxisLocation = plot.getDomainAxisEdge(); 149: RectangleEdge rangeAxisLocation = plot.getRangeAxisEdge(); 150: ax1 = domainAxis.valueToJava2D(x.doubleValue(), plotArea, 151: domainAxisLocation); 152: ay1 = rangeAxis.valueToJava2D(0.0, plotArea, rangeAxisLocation); 153: 154: rax2 = x.doubleValue() + (windForce * Math.cos(wdirt) * 8000000.0); 155: ray2 = windForce * Math.sin(wdirt); 156: 157: ax2 = domainAxis.valueToJava2D(rax2, plotArea, domainAxisLocation); 158: ay2 = rangeAxis.valueToJava2D(ray2, plotArea, rangeAxisLocation); 159: 160: int diri = windDir.intValue(); 161: int forcei = wforce.intValue(); 162: String dirforce = diri + "-" + forcei; 163: Line2D line = new Line2D.Double(ax1, ay1, ax2, ay2); 164: 165: g2.draw(line); 166: g2.setPaint(Color.blue); 167: g2.setFont(new Font("foo", 1, 9)); 168: 169: g2.drawString(dirforce, (float) ax1, (float) ay1); 170: 171: g2.setPaint(seriesPaint); 172: g2.setStroke(seriesStroke); 173: 174: double alx2, aly2, arx2, ary2; 175: double ralx2, raly2, rarx2, rary2; 176: 177: double aldir = Math.toRadians(windDir.doubleValue() 178: * (-30.0) - 90.0 - 5.0); 179: ralx2 = wforce.doubleValue() * Math.cos(aldir) * 8000000 * 0.8 180: + x.doubleValue(); 181: raly2 = wforce.doubleValue() * Math.sin(aldir) * 0.8; 182: 183: alx2 = domainAxis.valueToJava2D(ralx2, plotArea, domainAxisLocation); 184: aly2 = rangeAxis.valueToJava2D(raly2, plotArea, rangeAxisLocation); 185: 186: line = new Line2D.Double(alx2, aly2, ax2, ay2); 187: g2.draw(line); 188: 189: double ardir = Math.toRadians(windDir.doubleValue() 190: * (-30.0) - 90.0 + 5.0); 191: rarx2 = wforce.doubleValue() * Math.cos(ardir) * 8000000 * 0.8 192: + x.doubleValue(); 193: rary2 = wforce.doubleValue() * Math.sin(ardir) * 0.8; 194: 195: arx2 = domainAxis.valueToJava2D(rarx2, plotArea, domainAxisLocation); 196: ary2 = rangeAxis.valueToJava2D(rary2, plotArea, rangeAxisLocation); 197: 198: line = new Line2D.Double(arx2, ary2, ax2, ay2); 199: g2.draw(line); 200: 201: } 202: 203: /** 204: * Returns a clone of the renderer. 205: * 206: * @return A clone. 207: * 208: * @throws CloneNotSupportedException if the renderer cannot be cloned. 209: */ 210: public Object clone() throws CloneNotSupportedException { 211: return super.clone(); 212: } 213: 214: }