svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.file / org.gvsig.fmap.dal.file.shp / src / main / java / org / gvsig / fmap / dal / store / shp / utils / SHPReader3DM.java @ 42811
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1 | 42311 | fdiaz | /* gvSIG. Desktop Geographic Information System.
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2 | *
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3 | * Copyright ? 2007-2015 gvSIG Association
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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., 51 Franklin Street, Fifth Floor, Boston,
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18 | * MA 02110-1301, USA.
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19 | *
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20 | * For any additional information, do not hesitate to contact us
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21 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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22 | */
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23 | package org.gvsig.fmap.dal.store.shp.utils; |
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24 | |||
25 | import java.nio.ByteOrder; |
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26 | |||
27 | import org.gvsig.fmap.dal.exception.ReadException; |
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28 | 42811 | jjdelcerro | import org.gvsig.fmap.dal.store.shp.SHPStoreParameters; |
29 | 42311 | fdiaz | import org.gvsig.fmap.geom.Geometry; |
30 | import org.gvsig.fmap.geom.GeometryLocator; |
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31 | import org.gvsig.fmap.geom.GeometryManager; |
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32 | import org.gvsig.fmap.geom.aggregate.MultiLine; |
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33 | import org.gvsig.fmap.geom.aggregate.MultiPoint; |
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34 | import org.gvsig.fmap.geom.aggregate.MultiPolygon; |
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35 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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36 | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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37 | import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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38 | import org.gvsig.fmap.geom.primitive.Line; |
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39 | import org.gvsig.fmap.geom.primitive.Point; |
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40 | import org.gvsig.fmap.geom.primitive.Polygon; |
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41 | import org.gvsig.fmap.geom.primitive.Ring; |
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42 | import org.gvsig.utils.bigfile.BigByteBuffer2; |
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43 | |||
44 | |||
45 | /**
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46 | * @author fdiaz
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47 | *
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48 | */
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49 | public class SHPReader3DM extends AbstractSHPReader { |
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50 | |||
51 | /**
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52 | *
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53 | */
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54 | 42811 | jjdelcerro | public SHPReader3DM(SHPStoreParameters params) {
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55 | super(params);
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56 | 42311 | fdiaz | } |
57 | |||
58 | /* (non-Javadoc)
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59 | * @see org.gvsig.fmap.dal.store.shp.utils.SHPReader#readPoint(org.gvsig.utils.bigfile.BigByteBuffer2)
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60 | */
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61 | public Point readPoint(BigByteBuffer2 bb) throws CreateGeometryException { |
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62 | // bytes 1 to 4 are the type and have already been read.
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63 | // bytes 4 to 12 are the X coordinate
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64 | // bytes 13 to 20 are the Y coordinate
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65 | // bytes 21 to 28 are the Z coordinate
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66 | // bytes 29 to 36 are the M coordinate
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67 | GeometryManager gManager = GeometryLocator.getGeometryManager(); |
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68 | bb.order(ByteOrder.LITTLE_ENDIAN);
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69 | double x = bb.getDouble();
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70 | double y = bb.getDouble();
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71 | double z = bb.getDouble();
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72 | double m = bb.getDouble();
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73 | Point p = (Point) gManager.create(Geometry.TYPES.POINT, Geometry.SUBTYPES.GEOM3DM); |
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74 | p.setX(x); |
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75 | p.setY(y); |
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76 | p.setCoordinateAt(Geometry.DIMENSIONS.Z, z); |
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77 | p.setCoordinateAt(p.getDimension()-1, m);
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78 | return p;
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79 | } |
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80 | |||
81 | /* (non-Javadoc)
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82 | * @see org.gvsig.fmap.dal.store.shp.utils.SHPReader#readPoLyline(org.gvsig.utils.bigfile.BigByteBuffer2)
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83 | */
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84 | public Geometry readPoLyline(BigByteBuffer2 bb) throws CreateGeometryException, ReadException { |
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85 | |||
86 | GeometryManager gManager = GeometryLocator.getGeometryManager(); |
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87 | |||
88 | Point p = null; |
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89 | int numParts;
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90 | int numPoints;
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91 | int i;
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92 | int j;
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93 | |||
94 | bb.position(bb.position() + 32);
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95 | numParts = bb.getInt(); |
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96 | numPoints = bb.getInt(); |
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97 | |||
98 | int[] tempParts = new int[numParts]; |
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99 | |||
100 | MultiLine multiLine = null;
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101 | Line line = null; |
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102 | if (numParts > 1) { |
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103 | multiLine = (MultiLine) gManager.create(Geometry.TYPES.MULTILINE, Geometry.SUBTYPES.GEOM3DM); |
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104 | } |
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105 | |||
106 | for (i = 0; i < numParts; i++) { |
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107 | tempParts[i] = bb.getInt(); |
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108 | } |
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109 | |||
110 | j = 0;
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111 | |||
112 | for (i = 0; i < numPoints; i++) { |
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113 | p = (Point) gManager.create(Geometry.TYPES.POINT, Geometry.SUBTYPES.GEOM3DM);
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114 | fillXY(p, bb); |
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115 | |||
116 | if (i == tempParts[j]) {
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117 | if(multiLine!=null && line != null){ |
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118 | multiLine.addCurve(line); |
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119 | } |
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120 | line = (Line) gManager.create(Geometry.TYPES.LINE, Geometry.SUBTYPES.GEOM3DM);
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121 | if (j < (numParts - 1)) { |
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122 | j++; |
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123 | } |
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124 | } |
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125 | line.addVertex(p); |
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126 | } |
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127 | if (multiLine != null) { |
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128 | multiLine.addCurve(line); |
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129 | fillZ(multiLine, bb); |
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130 | fillM(multiLine, bb); |
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131 | return multiLine;
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132 | } else {
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133 | fillZ(line, bb); |
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134 | fillM(line, bb); |
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135 | return line;
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136 | } |
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137 | } |
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138 | |||
139 | /* (non-Javadoc)
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140 | * @see org.gvsig.fmap.dal.store.shp.utils.SHPReader#readPoLygon(org.gvsig.utils.bigfile.BigByteBuffer2)
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141 | */
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142 | public Geometry readPoLygon(BigByteBuffer2 bb) throws CreateGeometryException, GeometryOperationNotSupportedException, GeometryOperationException, ReadException { |
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143 | |||
144 | GeometryManager gManager = GeometryLocator.getGeometryManager(); |
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145 | |||
146 | Point p = null; |
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147 | int numParts;
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148 | int numPoints;
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149 | int i;
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150 | |||
151 | bb.position(bb.position() + 32);
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152 | numParts = bb.getInt(); |
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153 | numPoints = bb.getInt(); |
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154 | |||
155 | int[] tempParts = new int[numParts]; |
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156 | |||
157 | for (i = 0; i < numParts; i++) { |
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158 | tempParts[i] = bb.getInt(); |
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159 | } |
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160 | |||
161 | MultiPolygon multipolygon = null;
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162 | Polygon polygon = null; |
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163 | Ring ring = null;
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164 | |||
165 | int pointsCounter = 0; |
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166 | for(int part=0; part<numParts; part++){ |
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167 | ring = (Ring) gManager.create(Geometry.TYPES.RING, Geometry.SUBTYPES.GEOM3DM); |
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168 | int lastPoint = numPoints;
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169 | if(part<numParts-1){ |
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170 | lastPoint = tempParts[part+1];
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171 | } |
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172 | while(pointsCounter<lastPoint){
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173 | p = (Point) gManager.create(Geometry.TYPES.POINT, Geometry.SUBTYPES.GEOM3DM);
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174 | fillXY(p, bb); |
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175 | ring.addVertex(p); |
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176 | pointsCounter++; |
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177 | } |
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178 | ring.closePrimitive(); |
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179 | 42811 | jjdelcerro | checkNumVerticesOfRing(ring); |
180 | 42311 | fdiaz | if (ring.isCCW() && polygon!=null) { |
181 | // Los anillos interiores deben ser CCW pero si encontramos un
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182 | // anillo interior que no est? envuelto en un pol?gono
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183 | // consideramos que es un pol?gono en s? y nos aseguramos de
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184 | // darle la vuelta (en el else)
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185 | //FIXME: Comprobar que este es el comportamiento deseado
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186 | polygon.addInteriorRing(ring); |
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187 | } else {
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188 | if(polygon!=null){ |
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189 | if(multipolygon==null){ |
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190 | multipolygon = (MultiPolygon) gManager.create(Geometry.TYPES.MULTIPOLYGON, Geometry.SUBTYPES.GEOM3DM); |
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191 | } |
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192 | multipolygon.addPrimitive(polygon); |
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193 | } |
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194 | polygon = (Polygon) gManager.create(Geometry.TYPES.POLYGON, Geometry.SUBTYPES.GEOM3DM);
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195 | polygon.ensureCapacity(ring.getNumVertices()); |
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196 | if(ring.isCCW()){
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197 | //To ensure CW orientation for polygons
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198 | for (int v = ring.getNumVertices()-1; v >=0; v--) { |
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199 | polygon.addVertex(ring.getVertex(v)); |
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200 | } |
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201 | } else {
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202 | for (int v = 0; v < ring.getNumVertices(); v++) { |
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203 | polygon.addVertex(ring.getVertex(v)); |
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204 | } |
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205 | } |
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206 | } |
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207 | } |
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208 | |||
209 | if (multipolygon != null) { |
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210 | multipolygon.addPrimitive(polygon); |
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211 | fillZ(multipolygon, bb); |
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212 | fillM(multipolygon, bb); |
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213 | return multipolygon;
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214 | } else {
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215 | fillZ(polygon, bb); |
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216 | fillM(polygon, bb); |
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217 | return polygon;
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218 | } |
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219 | } |
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220 | |||
221 | /* (non-Javadoc)
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222 | * @see org.gvsig.fmap.dal.store.shp.utils.SHPReader#readMultiPoint(org.gvsig.utils.bigfile.BigByteBuffer2)
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223 | */
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224 | public Geometry readMultiPoint(BigByteBuffer2 bb) throws CreateGeometryException, ReadException { |
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225 | |||
226 | GeometryManager gManager = GeometryLocator.getGeometryManager(); |
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227 | |||
228 | int numPoints;
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229 | bb.position(bb.position() + 32);
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230 | numPoints = bb.getInt(); |
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231 | |||
232 | MultiPoint multipoint = gManager.createMultiPoint(Geometry.SUBTYPES.GEOM3DM); |
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233 | |||
234 | for (int i = 0; i < numPoints; i++) { |
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235 | Point point = (Point) gManager.create(Geometry.TYPES.POINT, Geometry.SUBTYPES.GEOM3DM); |
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236 | multipoint.addPoint(point); |
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237 | } |
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238 | |||
239 | fillZ(multipoint, bb); |
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240 | fillM(multipoint, bb); |
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241 | return multipoint;
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242 | } |
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243 | |||
244 | } |