001/* =========================================================== 002 * Orson Charts : a 3D chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C)opyright 2013-2022, by David Gilbert. All rights reserved. 006 * 007 * https://github.com/jfree/orson-charts 008 * 009 * This program is free software: you can redistribute it and/or modify 010 * it under the terms of the GNU General Public License as published by 011 * the Free Software Foundation, either version 3 of the License, or 012 * (at your option) any later version. 013 * 014 * This program is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 017 * GNU General Public License for more details. 018 * 019 * You should have received a copy of the GNU General Public License 020 * along with this program. If not, see <http://www.gnu.org/licenses/>. 021 * 022 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 023 * Other names may be trademarks of their respective owners.] 024 * 025 * If you do not wish to be bound by the terms of the GPL, an alternative 026 * commercial license can be purchased. For details, please see visit the 027 * Orson Charts home page: 028 * 029 * http://www.object-refinery.com/orsoncharts/index.html 030 * 031 */ 032 033package org.jfree.chart3d.renderer.xyz; 034 035import java.awt.Color; 036import java.io.Serializable; 037 038import org.jfree.chart3d.axis.Axis3D; 039import org.jfree.chart3d.data.xyz.XYZDataset; 040import org.jfree.chart3d.graphics3d.Dimension3D; 041import org.jfree.chart3d.graphics3d.Line3D; 042import org.jfree.chart3d.graphics3d.LineObject3D; 043import org.jfree.chart3d.graphics3d.World; 044import org.jfree.chart3d.plot.XYZPlot; 045 046/** 047 * A renderer that draws 3D lines on an {@link XYZPlot} using data from an 048 * {@link XYZDataset}. Here is a sample: 049 * <div> 050 * <img src="../../../../../../doc-files/XYZLineChart3DDemo1.svg" 051 * alt="XYZLineChart3DDemo1.svg" width="500" height="359"> 052 * </div> 053 * (refer to {@code XYZLineChart3DDemo1.java} for the code to generate 054 * the above chart). 055 * <br><br> 056 * NOTE: This class is serializable, but the serialization format is subject 057 * to change in future releases and should not be relied upon for persisting 058 * instances of this class. 059 * 060 * @since 1.5 061 */ 062@SuppressWarnings("serial") 063public class LineXYZRenderer extends AbstractXYZRenderer implements XYZRenderer, 064 Serializable { 065 066 /** 067 * Creates a new default instance. 068 */ 069 public LineXYZRenderer() { 070 } 071 072 /** 073 * Adds a single line representing one item from the dataset. 074 * 075 * @param dataset the dataset. 076 * @param series the series index. 077 * @param item the item index. 078 * @param world the world used to model the 3D chart. 079 * @param dimensions the plot dimensions in 3D. 080 * @param xOffset the x-offset. 081 * @param yOffset the y-offset. 082 * @param zOffset the z-offset. 083 */ 084 @Override 085 public void composeItem(XYZDataset dataset, int series, int item, 086 World world, Dimension3D dimensions, double xOffset, double yOffset, 087 double zOffset) { 088 089 if (item == 0) { // we are connecting lines between points, so there 090 return; // is nothing to do for item 0 091 } 092 XYZPlot plot = getPlot(); 093 Axis3D xAxis = plot.getXAxis(); 094 Axis3D yAxis = plot.getYAxis(); 095 Axis3D zAxis = plot.getZAxis(); 096 double x1 = dataset.getX(series, item); 097 double y1 = dataset.getY(series, item); 098 double z1 = dataset.getZ(series, item); 099 100 double x0 = dataset.getX(series, item - 1); 101 double y0 = dataset.getY(series, item - 1); 102 double z0 = dataset.getZ(series, item - 1); 103 104 double wx0 = xAxis.translateToWorld(x0, dimensions.getWidth()); 105 double wx1 = xAxis.translateToWorld(x1, dimensions.getWidth()); 106 double wy0 = yAxis.translateToWorld(y0, dimensions.getHeight()); 107 double wy1 = yAxis.translateToWorld(y1, dimensions.getHeight()); 108 double wz0 = zAxis.translateToWorld(z0, dimensions.getDepth()); 109 double wz1 = zAxis.translateToWorld(z1, dimensions.getDepth()); 110 Line3D line = new Line3D(wx0, wy0, wz0, wx1, wy1, wz1); 111 line = Line3D.cropLineToAxisAlignedBoundingBox(line, 0, 112 dimensions.getWidth(), 0, dimensions.getHeight(), 0, 113 dimensions.getDepth()); 114 if (line != null) { 115 Color color = getColorSource().getColor(series, item); 116 LineObject3D line3D = new LineObject3D( 117 (float) (line.getStart().getX() + xOffset), 118 (float) (line.getStart().getY() + yOffset), 119 (float) (line.getStart().getZ() + zOffset), 120 (float) (line.getEnd().getX() + xOffset), 121 (float) (line.getEnd().getY() + yOffset), 122 (float) (line.getEnd().getZ() + zOffset), color); 123 world.add(line3D); 124 } 125 } 126 127 /** 128 * Tests this renderer for equality with an arbitrary object. 129 * 130 * @param obj the object ({@code null} permitted). 131 * 132 * @return A boolean. 133 */ 134 @Override 135 public boolean equals(Object obj) { 136 if (obj == this) { 137 return true; 138 } 139 if (!(obj instanceof LineXYZRenderer)) { 140 return false; 141 } 142 LineXYZRenderer that = (LineXYZRenderer) obj; 143 return super.equals(obj); 144 } 145 146} 147