svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.impl / src / main / java / org / gvsig / fmap / geom / primitive / impl / Arc2D.java @ 40435
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1 | 40435 | jjdelcerro | /*
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2 | * Created on 09-feb-2005
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3 | *
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4 | * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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5 | *
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6 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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7 | *
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8 | * This program is free software; you can redistribute it and/or
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9 | * modify it under the terms of the GNU General Public License
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10 | * as published by the Free Software Foundation; either version 2
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11 | * of the License, or (at your option) any later version.
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12 | *
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13 | * This program is distributed in the hope that it will be useful,
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | * GNU General Public License for more details.
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17 | *
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18 | * You should have received a copy of the GNU General Public License
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19 | * along with this program; if not, write to the Free Software
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20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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21 | USA.
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22 | *
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23 | * For more information, contact:
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24 | *
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25 | * Generalitat Valenciana
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26 | * Conselleria d'Infraestructures i Transport
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27 | * Av. Blasco Ib??ez, 50
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28 | * 46010 VALENCIA
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29 | * SPAIN
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30 | *
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31 | * +34 963862235
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32 | * gvsig@gva.es
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33 | * www.gvsig.gva.es
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34 | *
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35 | * or
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36 | *
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37 | * IVER T.I. S.A
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38 | * Salamanca 50
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39 | * 46005 Valencia
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40 | * Spain
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41 | *
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42 | * +34 963163400
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43 | * dac@iver.es
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44 | */
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45 | package org.gvsig.fmap.geom.primitive.impl; |
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46 | |||
47 | import java.awt.geom.AffineTransform; |
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48 | import java.awt.geom.Point2D; |
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49 | import java.awt.geom.Rectangle2D; |
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50 | import java.util.ArrayList; |
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51 | |||
52 | import org.cresques.cts.IProjection; |
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53 | import org.slf4j.Logger; |
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54 | import org.slf4j.LoggerFactory; |
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55 | |||
56 | import org.gvsig.fmap.geom.Geometry; |
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57 | import org.gvsig.fmap.geom.GeometryLocator; |
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58 | import org.gvsig.fmap.geom.GeometryManager; |
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59 | import org.gvsig.fmap.geom.handler.AbstractHandler; |
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60 | import org.gvsig.fmap.geom.handler.CenterHandler; |
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61 | import org.gvsig.fmap.geom.handler.FinalHandler; |
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62 | import org.gvsig.fmap.geom.handler.Handler; |
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63 | import org.gvsig.fmap.geom.primitive.Arc; |
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64 | import org.gvsig.fmap.geom.primitive.FShape; |
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65 | import org.gvsig.fmap.geom.primitive.GeneralPathX; |
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66 | import org.gvsig.fmap.geom.primitive.Point; |
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67 | import org.gvsig.fmap.geom.type.GeometryType; |
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68 | import org.gvsig.fmap.geom.util.UtilFunctions; |
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69 | |||
70 | |||
71 | |||
72 | /**
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73 | * DOCUMENT ME!
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74 | *
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75 | * @author Vicente Caballero Navarro
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76 | */
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77 | public class Arc2D extends Curve2D implements Arc { |
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78 | private static final long serialVersionUID = 6416027005106924030L; |
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79 | |||
80 | private static final Logger logger = LoggerFactory.getLogger(Arc2D.class); |
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81 | |||
82 | private Point2D init; |
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83 | |||
84 | /**
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85 | * This is the middle point (belongs to the arc), not the center
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86 | * of the circle/ellipse
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87 | */
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88 | private Point2D middle; |
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89 | private Point2D end; |
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90 | |||
91 | private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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92 | |||
93 | /**
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94 | * The constructor with the GeometryType like and argument
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95 | * is used by the {@link GeometryType}{@link #create()}
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96 | * to create the geometry
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97 | * @param type
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98 | * The geometry type
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99 | */
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100 | public Arc2D(GeometryType geometryType) { |
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101 | super(geometryType);
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102 | } |
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103 | |||
104 | /**
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105 | * Constructor used in the {@link Geometry#cloneGeometry()} method
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106 | * @param id
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107 | * @param projection
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108 | * @param gpx
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109 | * @param i
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110 | * @param c
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111 | * @param e
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112 | */
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113 | protected Arc2D(GeometryType geometryType, String id, IProjection projection, GeneralPathX gpx, Point2D i,Point2D c, Point2D e) { |
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114 | super(geometryType, id, projection, gpx);
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115 | init=i; |
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116 | middle=c; |
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117 | end=e; |
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118 | } |
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119 | |||
120 | /* (non-Javadoc)
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121 | * @see com.iver.cit.gvsig.fmap.core.FShape#cloneFShape()
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122 | */
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123 | public FShape cloneFShape() {
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124 | Arc2D arc = new Arc2D(getGeometryType(), id, projection, (GeneralPathX) gp.clone(),init,middle,end); |
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125 | return arc;
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126 | } |
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127 | |||
128 | /*
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129 | * (non-Javadoc)
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130 | * @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#transform(java.awt.geom.AffineTransform)
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131 | */
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132 | public void transform(AffineTransform at) { |
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133 | |||
134 | if (at == null) { |
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135 | return;
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136 | } |
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137 | |||
138 | gp.transform(at); |
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139 | InitHandler inithandler=(InitHandler)getStretchingHandlers()[0];
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140 | //CenterHandler centerhandler=(CenterHandler)getHandlers()[1];
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141 | EndHandler endhandler=(EndHandler)getStretchingHandlers()[1];
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142 | Point2D aux1=new Point2D.Double(); |
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143 | Point2D aux2=new Point2D.Double(); |
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144 | Point2D aux3=new Point2D.Double(); |
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145 | at.transform(inithandler.getPoint(),aux1); |
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146 | inithandler.setPoint(aux1); |
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147 | //at.transform(centerhandler.getPoint(),aux2);
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148 | //centerhandler.setPoint(aux2);
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149 | at.transform(endhandler.getPoint(),aux3); |
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150 | endhandler.setPoint(aux3); |
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151 | CenterSelHandler centerhandler=(CenterSelHandler)getSelectHandlers()[1];
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152 | at.transform(centerhandler.getPoint(),aux2); |
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153 | centerhandler.setPoint(aux2); |
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154 | |||
155 | } |
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156 | |||
157 | /*
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158 | * (non-Javadoc)
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159 | * @see org.gvsig.fmap.geom.primitive.impl.Curve2D#getShapeType()
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160 | */
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161 | public int getShapeType() { |
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162 | return TYPES.ARC;
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163 | } |
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164 | |||
165 | /*
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166 | * (non-Javadoc)
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167 | * @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#getStretchingHandlers()
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168 | */
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169 | public Handler[] getStretchingHandlers() { |
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170 | ArrayList handlers = new ArrayList(); |
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171 | |||
172 | handlers.add(new InitHandler(0, init.getX(), init.getY())); |
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173 | //handlers.add(new CenterHandler(1, center.getX(), center.getY()));
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174 | handlers.add(new EndHandler(1, end.getX(), end.getY())); |
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175 | |||
176 | return (Handler[]) handlers.toArray(new Handler[0]); |
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177 | } |
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178 | |||
179 | /*
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180 | * (non-Javadoc)
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181 | * @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#getSelectHandlers()
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182 | */
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183 | public Handler[] getSelectHandlers() { |
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184 | ArrayList handlers = new ArrayList(); |
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185 | |||
186 | handlers.add(new InitSelHandler(0, init.getX(), init.getY())); |
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187 | handlers.add(new CenterSelHandler(1, middle.getX(), middle.getY())); |
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188 | handlers.add(new EndSelHandler(2, end.getX(), end.getY())); |
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189 | |||
190 | return (Handler[]) handlers.toArray(new Handler[0]); |
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191 | } |
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192 | /**
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193 | * DOCUMENT ME!
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194 | *
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195 | * @author Vicente Caballero Navarro
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196 | */
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197 | class CenterSelHandler extends AbstractHandler implements CenterHandler{ |
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198 | /**
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199 | * Crea un nuevo PointHandler.
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200 | *
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201 | * @param i DOCUMENT ME!
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202 | * @param x DOCUMENT ME!
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203 | * @param y DOCUMENT ME!
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204 | */
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205 | public CenterSelHandler(int i, double x, double y) { |
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206 | middle = new Point2D.Double(x, y); |
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207 | index = i; |
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208 | } |
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209 | |||
210 | /**
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211 | * DOCUMENT ME!
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212 | *
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213 | * @param x DOCUMENT ME!
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214 | * @param y DOCUMENT ME!
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215 | *
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216 | * @return DOCUMENT ME!
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217 | */
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218 | public void move(double x, double y) { |
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219 | } |
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220 | public void setPoint(Point2D p){ |
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221 | middle=p; |
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222 | } |
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223 | public Point2D getPoint(){ |
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224 | return middle;
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225 | } |
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226 | |||
227 | /**
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228 | * @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
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229 | */
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230 | public void set(double x, double y) { |
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231 | middle=new Point2D.Double(x,y); |
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232 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(init, middle, end); |
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233 | gp = new GeneralPathX(arco.getPathIterator(null)); |
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234 | } |
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235 | } |
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236 | |||
237 | /**
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238 | * DOCUMENT ME!
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239 | *
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240 | * @author Vicente Caballero Navarro
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241 | */
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242 | class InitHandler extends AbstractHandler implements FinalHandler{ |
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243 | /**
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244 | * Crea un nuevo PointHandler.
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245 | *
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246 | * @param i DOCUMENT ME!
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247 | * @param x DOCUMENT ME!
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248 | * @param y DOCUMENT ME!
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249 | */
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250 | public InitHandler(int i, double x, double y) { |
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251 | init = new Point2D.Double(x, y); |
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252 | index = i; |
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253 | } |
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254 | |||
255 | /**
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256 | * DOCUMENT ME!
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257 | *
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258 | * @param x DOCUMENT ME!
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259 | * @param y DOCUMENT ME!
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260 | *
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261 | * @return DOCUMENT ME!
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262 | */
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263 | public void move(double x, double y) { |
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264 | Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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265 | double dist=mediop.distance(middle);
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266 | init=new Point2D.Double(init.getX()+x,init.getY()+y); |
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267 | |||
268 | mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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269 | Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
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270 | if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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271 | dist=-dist; |
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272 | } |
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273 | middle=UtilFunctions.getPoint(mediop,perp[1],dist);
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274 | |||
275 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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276 | gp=new GeneralPathX(arco.getPathIterator(null)); |
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277 | } |
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278 | public void setPoint(Point2D p){ |
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279 | init=p; |
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280 | } |
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281 | public Point2D getPoint(){ |
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282 | return init;
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283 | } |
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284 | |||
285 | /**
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286 | * @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
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287 | */
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288 | public void set(double x, double y) { |
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289 | } |
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290 | } |
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291 | |||
292 | /**
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293 | * DOCUMENT ME!
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294 | *
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295 | * @author Vicente Caballero Navarro
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296 | */
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297 | class EndHandler extends AbstractHandler implements FinalHandler{ |
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298 | /**
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299 | * Crea un nuevo PointHandler.
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300 | *
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301 | * @param i DOCUMENT ME!
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302 | * @param x DOCUMENT ME!
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303 | * @param y DOCUMENT ME!
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304 | */
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305 | public EndHandler(int i, double x, double y) { |
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306 | end = new Point2D.Double(x, y); |
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307 | index = i; |
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308 | } |
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309 | |||
310 | /**
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311 | * DOCUMENT ME!
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312 | *
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313 | * @param x DOCUMENT ME!
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314 | * @param y DOCUMENT ME!
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315 | *
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316 | * @return DOCUMENT ME!
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317 | */
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318 | public void move(double x, double y) { |
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319 | Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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320 | double dist=mediop.distance(middle);
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321 | end=new Point2D.Double(end.getX()+x,end.getY()+y); |
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322 | |||
323 | mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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324 | Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
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325 | if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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326 | dist=-dist; |
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327 | } |
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328 | middle=UtilFunctions.getPoint(mediop,perp[1],dist);
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329 | |||
330 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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331 | gp=new GeneralPathX(arco.getPathIterator(null)); |
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332 | } |
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333 | public void setPoint(Point2D p){ |
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334 | end=p; |
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335 | } |
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336 | public Point2D getPoint(){ |
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337 | return end;
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338 | } |
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339 | |||
340 | /**
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341 | * @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
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342 | */
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343 | public void set(double x, double y) { |
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344 | |||
345 | } |
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346 | } |
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347 | |||
348 | /**
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349 | * DOCUMENT ME!
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350 | *
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351 | * @author Vicente Caballero Navarro
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352 | */
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353 | class InitSelHandler extends AbstractHandler implements FinalHandler{ |
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354 | /**
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355 | * Crea un nuevo PointHandler.
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356 | *
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357 | * @param i DOCUMENT ME!
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358 | * @param x DOCUMENT ME!
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359 | * @param y DOCUMENT ME!
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360 | */
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361 | public InitSelHandler(int i, double x, double y) { |
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362 | init = new Point2D.Double(x, y); |
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363 | index = i; |
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364 | } |
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365 | |||
366 | /**
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367 | * DOCUMENT ME!
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368 | *
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369 | * @param x DOCUMENT ME!
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370 | * @param y DOCUMENT ME!
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371 | *
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372 | * @return DOCUMENT ME!
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373 | */
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374 | public void move(double x, double y) { |
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375 | Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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376 | double dist=mediop.distance(middle);
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377 | init=new Point2D.Double(init.getX()+x,init.getY()+y); |
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378 | |||
379 | mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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380 | Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
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381 | if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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382 | dist=-dist; |
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383 | } |
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384 | middle=UtilFunctions.getPoint(mediop,perp[1],dist);
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385 | |||
386 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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387 | gp=new GeneralPathX(arco.getPathIterator(null)); |
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388 | } |
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389 | public void setPoint(Point2D p){ |
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390 | init=p; |
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391 | } |
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392 | public Point2D getPoint(){ |
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393 | return init;
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394 | } |
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395 | |||
396 | /**
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397 | * @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
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398 | */
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399 | public void set(double x, double y) { |
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400 | Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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401 | double dist=mediop.distance(middle);
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402 | init=new Point2D.Double(x,y); |
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403 | |||
404 | mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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405 | // TODO comentado para quitar warning: Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop);
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406 | if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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407 | dist=-dist; |
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408 | } |
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409 | ///center=TrigonometricalFunctions.getPoint(mediop,perp[1],dist);
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410 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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411 | gp=new GeneralPathX(arco.getPathIterator(null)); |
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412 | } |
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413 | } |
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414 | |||
415 | /**
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416 | * DOCUMENT ME!
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417 | *
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418 | * @author Vicente Caballero Navarro
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419 | */
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420 | class EndSelHandler extends AbstractHandler implements FinalHandler{ |
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421 | /**
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422 | * Crea un nuevo PointHandler.
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423 | *
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424 | * @param i DOCUMENT ME!
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425 | * @param x DOCUMENT ME!
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426 | * @param y DOCUMENT ME!
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427 | */
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428 | public EndSelHandler(int i, double x, double y) { |
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429 | end = new Point2D.Double(x, y); |
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430 | index = i; |
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431 | } |
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432 | |||
433 | /**
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434 | * DOCUMENT ME!
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435 | *
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436 | * @param x DOCUMENT ME!
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437 | * @param y DOCUMENT ME!
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438 | *
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439 | * @return DOCUMENT ME!
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440 | */
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441 | public void move(double x, double y) { |
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442 | Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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443 | double dist=mediop.distance(middle);
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444 | end=new Point2D.Double(end.getX()+x,end.getY()+y); |
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445 | |||
446 | mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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447 | Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
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448 | if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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449 | dist=-dist; |
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450 | } |
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451 | middle=UtilFunctions.getPoint(mediop,perp[1],dist);
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452 | |||
453 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
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454 | gp=new GeneralPathX(arco.getPathIterator(null)); |
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455 | } |
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456 | public void setPoint(Point2D p){ |
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457 | end=p; |
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458 | } |
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459 | public Point2D getPoint(){ |
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460 | return end;
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461 | } |
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462 | |||
463 | /**
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464 | * @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
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465 | */
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466 | public void set(double x, double y) { |
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467 | Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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468 | double dist=mediop.distance(middle);
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469 | end=new Point2D.Double(x,y); |
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470 | |||
471 | mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
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472 | // TODO comentado para quitar warning: Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop);
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||
473 | if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
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474 | dist=-dist; |
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475 | } |
||
476 | ///center=TrigonometricalFunctions.getPoint(mediop,perp[1],dist);
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477 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
||
478 | gp=new GeneralPathX(arco.getPathIterator(null)); |
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479 | } |
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480 | } |
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481 | |||
482 | /* (non-Javadoc)
|
||
483 | * @see com.iver.cit.gvsig.fmap.core.FPolyline2D#intersects(java.awt.geom.Rectangle2D)
|
||
484 | */
|
||
485 | public boolean intersects(Rectangle2D r) { |
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486 | return gp.intersects(r);
|
||
487 | } |
||
488 | |||
489 | /* (non-Javadoc)
|
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490 | * @see org.gvsig.fmap.geom.primitive.Arc#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)
|
||
491 | */
|
||
492 | public void setPoints(Point p1, Point p2, Point p3) { |
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493 | Point2D _p1 = new java.awt.geom.Point2D.Double(p1.getCoordinateAt(0), p1.getCoordinateAt(1)); |
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494 | Point2D _p2 = new java.awt.geom.Point2D.Double(p2.getCoordinateAt(0), p2.getCoordinateAt(1)); |
||
495 | Point2D _p3 = new java.awt.geom.Point2D.Double(p3.getCoordinateAt(0), p3.getCoordinateAt(1)); |
||
496 | setPoints(_p1, _p2, _p3); |
||
497 | } |
||
498 | |||
499 | /* (non-Javadoc)
|
||
500 | * @see org.gvsig.fmap.geom.primitive.Curve2D#setGeneralPath(org.gvsig.fmap.geom.primitive.GeneralPathX)
|
||
501 | */
|
||
502 | public void setGeneralPath(GeneralPathX generalPathX) { |
||
503 | throw new UnsupportedOperationException("Use setPoints(Point p1, Point p2, Point p3)"); |
||
504 | } |
||
505 | |||
506 | /* (non-Javadoc)
|
||
507 | * @see org.gvsig.fmap.geom.primitive.Arc#setPoints(java.awt.geom.Point2D, java.awt.geom.Point2D, java.awt.geom.Point2D)
|
||
508 | */
|
||
509 | private void setPoints(Point2D p1, Point2D p2, Point2D p3) { |
||
510 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(p1, p2, p3); |
||
511 | if (arco == null) { |
||
512 | logger.info("Did not set arc points (probably aligned points): "
|
||
513 | + p1.getX() + " " + p1.getY() + " :: " |
||
514 | + p2.getX() + " " + p2.getY() + " :: " |
||
515 | + p3.getX() + " " + p3.getY());
|
||
516 | throw new IllegalArgumentException("Did not set arc points (probably aligned points)."); |
||
517 | } |
||
518 | this.gp = new GeneralPathX(arco.getPathIterator(null)); |
||
519 | this.init = p1;
|
||
520 | this.middle = p2;
|
||
521 | this.end = p3;
|
||
522 | } |
||
523 | |||
524 | /* (non-Javadoc)
|
||
525 | * @see org.gvsig.fmap.geom.primitive.Arc#setPoints(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
||
526 | */
|
||
527 | public void setPoints(Point center, double radius, double initAngle, |
||
528 | double angleExt) {
|
||
529 | Point2D _center = new java.awt.geom.Point2D.Double(center.getCoordinateAt(0), center.getCoordinateAt(1)); |
||
530 | setPoints(_center, radius, initAngle, angleExt); |
||
531 | } |
||
532 | |||
533 | /* (non-Javadoc)
|
||
534 | * @see org.gvsig.fmap.geom.primitive.Arc#setPointsStartExt(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
||
535 | */
|
||
536 | public void setPointsStartExt(Point center, double radius, |
||
537 | double startAngle, double angleExt) { |
||
538 | |||
539 | setPoints(center, radius, startAngle, angleExt); |
||
540 | } |
||
541 | |||
542 | /* (non-Javadoc)
|
||
543 | * @see org.gvsig.fmap.geom.primitive.Arc#setPointsStartEnd(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
||
544 | */
|
||
545 | public void setPointsStartEnd(Point center, double radius, |
||
546 | double startAngle, double endAngle) { |
||
547 | |||
548 | if (startAngle == endAngle) {
|
||
549 | setPointsStartExt(center, radius, startAngle, 0);
|
||
550 | } else {
|
||
551 | |||
552 | /*
|
||
553 | * Normalize then force clockwise:
|
||
554 | */
|
||
555 | double norm_start = normalizeAngle(startAngle);
|
||
556 | double norm_end = normalizeAngle(endAngle);
|
||
557 | double ang_ext = 0; |
||
558 | |||
559 | // clockwise
|
||
560 | // ang_ext must be positive
|
||
561 | if (norm_start >= norm_end) {
|
||
562 | ang_ext = norm_start - norm_end; |
||
563 | } else {
|
||
564 | ang_ext = 2 * Math.PI - (norm_end - norm_start); |
||
565 | } |
||
566 | |||
567 | // finally call other method with ang_ext
|
||
568 | setPointsStartExt(center, radius, startAngle, ang_ext); |
||
569 | } |
||
570 | } |
||
571 | |||
572 | /**
|
||
573 | * Leaves the angle between PI and -PI
|
||
574 | * @param angle (radians)
|
||
575 | * @return
|
||
576 | */
|
||
577 | private double normalizeAngle(double angle) { |
||
578 | |||
579 | if (angle > -Math.PI && angle <= Math.PI) { |
||
580 | return angle;
|
||
581 | } |
||
582 | |||
583 | if (angle == Double.NEGATIVE_INFINITY |
||
584 | || angle == Double.POSITIVE_INFINITY) {
|
||
585 | return 0; |
||
586 | } |
||
587 | |||
588 | double abs_ang = Math.abs(angle); |
||
589 | double remove = Math.floor(abs_ang / (2 * Math.PI)); |
||
590 | remove = remove * 2 * Math.PI; |
||
591 | double resp = 0; |
||
592 | |||
593 | if (angle > 0) { |
||
594 | resp = angle - remove; |
||
595 | if (resp > Math.PI) { |
||
596 | // final adjustment
|
||
597 | resp = resp - 2 * Math.PI; |
||
598 | } |
||
599 | } else {
|
||
600 | resp = angle + remove; |
||
601 | if (resp <= -Math.PI) { |
||
602 | // final adjustment
|
||
603 | resp = resp + 2 * Math.PI; |
||
604 | } |
||
605 | } |
||
606 | |||
607 | return resp;
|
||
608 | } |
||
609 | |||
610 | /* (non-Javadoc)
|
||
611 | * @see org.gvsig.fmap.geom.primitive.Arc#setPoints(java.awt.geom.Point2D, double, double, double)
|
||
612 | */
|
||
613 | private void setPoints(Point2D center, double radius, double initAngle, |
||
614 | double angleExt) {
|
||
615 | java.awt.geom.Arc2D arco = UtilFunctions.createArc(center, radius, initAngle, angleExt); |
||
616 | |||
617 | java.awt.geom.Arc2D semiarco = UtilFunctions.createArc(center, radius, initAngle, angleExt/2);
|
||
618 | if (arco == null || semiarco == null) { |
||
619 | logger.info("Did not set arc points (probably aligned points)");
|
||
620 | return;
|
||
621 | } |
||
622 | |||
623 | Point2D p1 = arco.getStartPoint();
|
||
624 | Point2D p2 = semiarco.getEndPoint();
|
||
625 | Point2D p3 = arco.getEndPoint();
|
||
626 | |||
627 | setPoints(p1, p2, p3); |
||
628 | } |
||
629 | |||
630 | |||
631 | |||
632 | /* (non-Javadoc)
|
||
633 | * @see org.gvsig.fmap.geom.primitive.Curve2D#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)
|
||
634 | */
|
||
635 | public void setPoints(Point startPoint, Point endPoint) { |
||
636 | throw new UnsupportedOperationException("Use setGeneralPathX"); |
||
637 | } |
||
638 | |||
639 | /* (non-Javadoc)
|
||
640 | * @see org.gvsig.fmap.geom.primitive.Arc#getEndPoint()
|
||
641 | */
|
||
642 | public Point getEndPoint() { |
||
643 | return new org.gvsig.fmap.geom.primitive.impl.Point2D(end.getX(), end.getY()); |
||
644 | } |
||
645 | |||
646 | /* (non-Javadoc)
|
||
647 | * @see org.gvsig.fmap.geom.primitive.Arc#getInitPoint()
|
||
648 | */
|
||
649 | public Point getInitPoint() { |
||
650 | return new org.gvsig.fmap.geom.primitive.impl.Point2D(init.getX(), init.getY()); |
||
651 | } |
||
652 | |||
653 | /* (non-Javadoc)
|
||
654 | * @see org.gvsig.fmap.geom.primitive.Arc#getCenterPoint()
|
||
655 | */
|
||
656 | public Point getCenterPoint() { |
||
657 | Point2D p = UtilFunctions.getCenter(init, middle,end);
|
||
658 | try {
|
||
659 | return new org.gvsig.fmap.geom.primitive.impl.Point2D(p.getX(), p.getY()); |
||
660 | } catch (Exception e) { |
||
661 | return null; |
||
662 | } |
||
663 | } |
||
664 | |||
665 | |||
666 | |||
667 | |||
668 | } |