svn-gvsig-desktop / tags / v1_1_Build_1007 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / drivers / shp / write / SHPMultiLine.java @ 12478
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1 | 1132 | vcaballero | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | package com.iver.cit.gvsig.fmap.drivers.shp.write; |
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42 | |||
43 | 2196 | vcaballero | import java.awt.geom.PathIterator; |
44 | import java.awt.geom.Rectangle2D; |
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45 | import java.nio.ByteBuffer; |
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46 | import java.nio.MappedByteBuffer; |
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47 | import java.util.ArrayList; |
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48 | |||
49 | 1132 | vcaballero | import com.iver.cit.gvsig.fmap.core.FPoint2D; |
50 | import com.iver.cit.gvsig.fmap.core.FPolyline2D; |
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51 | import com.iver.cit.gvsig.fmap.core.GeneralPathX; |
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52 | import com.iver.cit.gvsig.fmap.core.IGeometry; |
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53 | 2196 | vcaballero | import com.iver.cit.gvsig.fmap.core.IGeometry3D; |
54 | 1132 | vcaballero | import com.iver.cit.gvsig.fmap.core.v02.FConstant; |
55 | 6714 | caballero | import com.iver.cit.gvsig.fmap.core.v02.FConverter; |
56 | 2196 | vcaballero | import com.iver.cit.gvsig.fmap.drivers.shp.SHP; |
57 | 1132 | vcaballero | |
58 | |||
59 | /**
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60 | 1154 | vcaballero | * Elemento shape de tipo multil?nea.
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61 | 1132 | vcaballero | *
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62 | * @author Vicente Caballero Navarro
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63 | */
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64 | public class SHPMultiLine implements SHPShape { |
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65 | 11674 | caballero | protected int m_type; |
66 | 1132 | vcaballero | protected int[] parts; |
67 | protected FPoint2D[] points; |
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68 | 2196 | vcaballero | protected double[] zs; |
69 | 6714 | caballero | //double flatness = 0.8; // Por ejemplo. Cuanto m?s peque?o, m?s segmentos necesitar? la curva
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70 | 1132 | vcaballero | |
71 | /**
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72 | * Crea un nuevo SHPMultiLine.
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73 | */
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74 | public SHPMultiLine() {
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75 | m_type = FConstant.SHAPE_TYPE_POLYLINE; |
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76 | } |
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77 | |||
78 | /**
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79 | * Crea un nuevo SHPMultiLine.
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80 | *
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81 | 1154 | vcaballero | * @param type Tipo de multil?nea.
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82 | 1132 | vcaballero | *
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83 | 5389 | caballero | * @throws ShapefileException
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84 | 1132 | vcaballero | */
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85 | public SHPMultiLine(int type) throws ShapefileException { |
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86 | if ((type != FConstant.SHAPE_TYPE_POLYLINE) &&
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87 | (type != FConstant.SHAPE_TYPE_POLYLINEM) && |
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88 | (type != FConstant.SHAPE_TYPE_POLYLINEZ)) { |
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89 | throw new ShapefileException("No es de tipo 3,13 ni 23"); |
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90 | } |
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91 | |||
92 | m_type = type; |
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93 | } |
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94 | |||
95 | /**
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96 | 1154 | vcaballero | * @see com.iver.cit.gvsig.fmap.shp.SHPShape#getShapeType()
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97 | 1132 | vcaballero | */
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98 | public int getShapeType() { |
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99 | return m_type;
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100 | } |
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101 | |||
102 | /**
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103 | 1154 | vcaballero | * @see com.iver.cit.gvsig.fmap.shp.SHPShape#read(MappedByteBuffer, int)
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104 | 1132 | vcaballero | */
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105 | public IGeometry read(MappedByteBuffer buffer, int type) { |
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106 | double minX = buffer.getDouble();
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107 | double minY = buffer.getDouble();
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108 | double maxX = buffer.getDouble();
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109 | double maxY = buffer.getDouble();
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110 | Rectangle2D rec = new Rectangle2D.Double(minX, minY, maxX - minX, |
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111 | maxY - maxY); |
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112 | |||
113 | int numParts = buffer.getInt();
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114 | int numPoints = buffer.getInt(); //total number of points |
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115 | |||
116 | int[] partOffsets = new int[numParts]; |
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117 | |||
118 | for (int i = 0; i < numParts; i++) { |
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119 | partOffsets[i] = buffer.getInt(); |
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120 | } |
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121 | |||
122 | FPoint2D[] points = new FPoint2D[numPoints]; |
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123 | |||
124 | for (int t = 0; t < numPoints; t++) { |
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125 | points[t] = new FPoint2D(buffer.getDouble(), buffer.getDouble());
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126 | } |
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127 | |||
128 | /* if (type == FConstant.SHAPE_TYPE_POLYLINEZ) {
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129 | //z min, max
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130 | buffer.position(buffer.position() + (2 * 8));
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131 | for (int t = 0; t < numPoints; t++) {
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132 | points[t].z = buffer.getDouble(); //z value
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133 | }
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134 | }
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135 | */
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136 | return (IGeometry) new FPolyline2D(getGeneralPathX(points, partOffsets)); |
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137 | } |
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138 | |||
139 | /**
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140 | 1154 | vcaballero | * @see com.iver.cit.gvsig.fmap.shp.SHPShape#write(ByteBuffer, IGeometry)
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141 | 1132 | vcaballero | */
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142 | public void write(ByteBuffer buffer, IGeometry geometry) { |
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143 | Rectangle2D rec = geometry.getBounds2D();
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144 | buffer.putDouble(rec.getMinX()); |
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145 | buffer.putDouble(rec.getMinY()); |
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146 | buffer.putDouble(rec.getMaxX()); |
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147 | buffer.putDouble(rec.getMaxY()); |
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148 | int numParts = parts.length;
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149 | int npoints = points.length;
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150 | buffer.putInt(numParts); |
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151 | buffer.putInt(npoints); |
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152 | |||
153 | for (int i = 0; i < numParts; i++) { |
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154 | buffer.putInt(parts[i]); |
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155 | } |
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156 | |||
157 | for (int t = 0; t < npoints; t++) { |
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158 | buffer.putDouble(points[t].getX()); |
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159 | buffer.putDouble(points[t].getY()); |
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160 | } |
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161 | |||
162 | 2196 | vcaballero | if (m_type == FConstant.SHAPE_TYPE_POLYLINEZ) {
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163 | double[] zExtreame = SHP.getZMinMax(zs); |
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164 | 1132 | vcaballero | if (Double.isNaN(zExtreame[0])) { |
165 | buffer.putDouble(0.0);
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166 | buffer.putDouble(0.0);
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167 | } else {
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168 | buffer.putDouble(zExtreame[0]);
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169 | buffer.putDouble(zExtreame[1]);
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170 | } |
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171 | for (int t = 0; t < npoints; t++) { |
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172 | 2196 | vcaballero | double z = zs[t];
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173 | 1132 | vcaballero | if (Double.isNaN(z)) { |
174 | buffer.putDouble(0.0);
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175 | } else {
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176 | buffer.putDouble(z); |
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177 | } |
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178 | } |
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179 | 5389 | caballero | |
180 | 1132 | vcaballero | } |
181 | if (m_type == FConstant.SHAPE_TYPE_POLYLINEM) {
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182 | buffer.putDouble(-10E40);
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183 | buffer.putDouble(-10E40);
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184 | for (int t = 0; t < npoints; t++) { |
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185 | buffer.putDouble(-10E40);
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186 | } |
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187 | } |
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188 | 5389 | caballero | |
189 | 1132 | vcaballero | } |
190 | |||
191 | /**
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192 | * @see com.iver.cit.gvsig.fmap.shp.SHPShape#getLength(int)
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193 | */
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194 | public int getLength(IGeometry fgeometry) { |
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195 | int numlines;
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196 | int numpoints;
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197 | int length;
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198 | |||
199 | numlines = parts.length; |
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200 | numpoints = points.length; |
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201 | if (m_type == FConstant.SHAPE_TYPE_POLYLINE) {
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202 | length = 44 + (4 * numlines) + (numpoints * 16); |
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203 | } else if (m_type == FConstant.SHAPE_TYPE_POLYLINEM) { |
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204 | length = 44 + (4 * numlines) + (numpoints * 16) + 8 + 8 + |
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205 | (8 * numpoints);
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206 | } else if (m_type == FConstant.SHAPE_TYPE_POLYLINEZ) { |
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207 | 2196 | vcaballero | length = 44 + (4 * numlines) + (numpoints * 16) + |
208 | (8 * numpoints) + 8 + 8; |
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209 | 1132 | vcaballero | } else {
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210 | throw new IllegalStateException("Expected ShapeType of Arc, got " + |
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211 | m_type); |
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212 | } |
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213 | |||
214 | return length;
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215 | } |
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216 | |||
217 | /**
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218 | * DOCUMENT ME!
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219 | *
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220 | * @param po DOCUMENT ME!
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221 | * @param pa DOCUMENT ME!
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222 | *
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223 | * @return DOCUMENT ME!
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224 | */
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225 | protected GeneralPathX getGeneralPathX(FPoint2D[] po, int[] pa) { |
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226 | GeneralPathX gPX = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD,
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227 | po.length); |
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228 | int j = 0; |
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229 | |||
230 | for (int i = 0; i < po.length; i++) { |
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231 | if (i == pa[j]) {
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232 | gPX.moveTo(po[i].getX(), po[i].getY()); |
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233 | |||
234 | if (j < (pa.length - 1)) { |
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235 | j++; |
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236 | } |
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237 | } else {
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238 | gPX.lineTo(po[i].getX(), po[i].getY()); |
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239 | } |
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240 | } |
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241 | |||
242 | return gPX;
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243 | } |
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244 | |||
245 | /**
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246 | 1154 | vcaballero | * @see com.iver.cit.gvsig.fmap.shp.SHPShape#obtainsPoints(com.iver.cit.gvsig.fmap.core.GeneralPathXIterator)
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247 | 1132 | vcaballero | */
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248 | 2196 | vcaballero | public void obtainsPoints(IGeometry g) { |
249 | if (FConstant.SHAPE_TYPE_POLYLINEZ == m_type || FConstant.SHAPE_TYPE_POLYGONZ == m_type){
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250 | zs=((IGeometry3D)g).getZs(); |
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251 | } |
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252 | 1132 | vcaballero | ArrayList arrayPoints = null; |
253 | ArrayList arrayParts = new ArrayList(); |
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254 | 7072 | caballero | PathIterator theIterator = g.getPathIterator(null, FConverter.FLATNESS); //polyLine.getPathIterator(null, flatness); |
255 | 1132 | vcaballero | double[] theData = new double[6]; |
256 | int numParts = 0; |
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257 | while (!theIterator.isDone()) {
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258 | //while not done
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259 | int theType = theIterator.currentSegment(theData);
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260 | |||
261 | //Populate a segment of the new
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262 | // GeneralPathX object.
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263 | //Process the current segment to populate a new
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264 | // segment of the new GeneralPathX object.
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265 | 5389 | caballero | |
266 | 1132 | vcaballero | switch (theType) {
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267 | case PathIterator.SEG_MOVETO: |
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268 | |||
269 | // System.out.println("SEG_MOVETO");
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270 | if (arrayPoints == null) { |
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271 | arrayPoints = new ArrayList(); |
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272 | 2183 | fernando | arrayParts.add(new Integer(0)); |
273 | 1132 | vcaballero | } else {
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274 | 2183 | fernando | arrayParts.add(new Integer(arrayPoints.size())); |
275 | 1132 | vcaballero | } |
276 | |||
277 | numParts++; |
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278 | 5389 | caballero | |
279 | 1132 | vcaballero | arrayPoints.add(new FPoint2D(theData[0], theData[1])); |
280 | |||
281 | break;
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282 | |||
283 | case PathIterator.SEG_LINETO: |
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284 | |||
285 | // System.out.println("SEG_LINETO");
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286 | arrayPoints.add(new FPoint2D(theData[0], theData[1])); |
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287 | |||
288 | break;
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289 | |||
290 | case PathIterator.SEG_QUADTO: |
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291 | System.out.println("Not supported here"); |
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292 | |||
293 | break;
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294 | |||
295 | case PathIterator.SEG_CUBICTO: |
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296 | System.out.println("Not supported here"); |
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297 | |||
298 | break;
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299 | |||
300 | case PathIterator.SEG_CLOSE: |
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301 | System.out.println("SEG_CLOSE"); |
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302 | |||
303 | // A?adimos el primer punto para cerrar.
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304 | FPoint2D firstPoint = (FPoint2D) arrayPoints.get(0);
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305 | arrayPoints.add(new FPoint2D(firstPoint.getX(),
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306 | firstPoint.getY())); |
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307 | |||
308 | break;
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309 | } //end switch
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310 | |||
311 | theIterator.next(); |
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312 | 5389 | caballero | } |
313 | 1132 | vcaballero | |
314 | Integer[] integers = (Integer[]) arrayParts.toArray(new Integer[0]); |
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315 | parts = new int[integers.length]; |
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316 | for (int i = 0; i < integers.length; i++) { |
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317 | parts[i] = integers[i].intValue(); |
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318 | } |
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319 | |||
320 | points = (FPoint2D[]) arrayPoints.toArray(new FPoint2D[0]); |
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321 | 1154 | vcaballero | |
322 | 1132 | vcaballero | } |
323 | 5389 | caballero | |
324 | 6714 | caballero | // public void setFlatness(double flatness) {
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325 | // this.flatness=flatness;
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326 | // }
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327 | 1132 | vcaballero | } |