001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/io/shpapi/SHPPolyLine3D.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2008 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstr. 19
030 53177 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042 ---------------------------------------------------------------------------*/
043 package org.deegree.io.shpapi;
044
045 import org.deegree.model.spatialschema.ByteUtils;
046 import org.deegree.model.spatialschema.Curve;
047 import org.deegree.model.spatialschema.LineString;
048
049 /**
050 *
051 *
052 *
053 * @version $Revision: 9342 $
054 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
055 * @author last edited by: $Author: apoth $
056 *
057 * @version 1.0. $Revision: 9342 $, $Date: 2007-12-27 13:32:57 +0100 (Do, 27 Dez 2007) $
058 *
059 * @since 2.0
060 */
061 public class SHPPolyLine3D extends SHPPolyLine {
062
063
064 /**
065 * @param recBuf
066 */
067 public SHPPolyLine3D(byte[] recBuf) {
068
069 super( recBuf );
070
071 int pointsStart = 0;
072 int sumPoints = 0;
073
074 envelope = ShapeUtils.readBox(recBuf,4);
075
076 numParts = ByteUtils.readLEInt(recBuffer, 36);
077 numPoints = ByteUtils.readLEInt(recBuffer, 40);
078
079 pointsStart = ShapeConst.PARTS_START + (numParts * 4);
080
081 points = new SHPPoint[numParts][];
082
083 for (int j = 0; j < numParts; j++) {
084
085 int firstPointNo= 0;
086 int nextFirstPointNo= 0;
087 int offset= 0;
088 int lnumPoints= 0;
089
090 // get number of first point of current part out of ESRI shape Record:
091 firstPointNo = ByteUtils.readLEInt(recBuffer,ShapeConst.PARTS_START + (j * 4));
092
093 // calculate offset of part in bytes, count from the beginning of recordbuffer
094 offset = pointsStart + (firstPointNo * 16);
095
096 // get number of first point of next part ...
097 if (j < numParts-1) {
098 // ... usually out of ESRI shape Record
099 nextFirstPointNo= ByteUtils.readLEInt(recBuffer,ShapeConst.PARTS_START + ((j+1) * 4));
100 }
101 //... for the last part as total number of points
102 else if (j == numParts-1) {
103 nextFirstPointNo = numPoints;
104 }
105
106 // calculate number of points per part due to distance and
107 // calculate some checksum for the total number of points to be worked
108 lnumPoints = nextFirstPointNo - firstPointNo;
109 sumPoints += lnumPoints;
110
111 // allocate memory for the j-th part
112 points[j] = new SHPPoint[lnumPoints];
113
114 int zPos = pointsStart + 16 * numPoints + 16;
115
116 // create the points of the j-th part from the buffer
117 for (int i=0; i < lnumPoints; i++) {
118 double z = ByteUtils.readLEDouble( recBuffer, zPos);
119 zPos += 8;
120 SHPPoint dummyPoint = new SHPPoint(recBuf, offset + (i*16));
121 points[j][i] = new SHPPoint3D( dummyPoint.x, dummyPoint.y, z );
122 }
123
124 }
125
126
127 }
128
129 /**
130 * @param curve
131 */
132 public SHPPolyLine3D(Curve[] curve) {
133 super( curve );
134 double xmin = curve[0].getEnvelope().getMin().getX();
135 double xmax = curve[0].getEnvelope().getMax().getX();
136 double ymin = curve[0].getEnvelope().getMin().getY();
137 double ymax = curve[0].getEnvelope().getMax().getY();
138
139 numParts = curve.length;
140
141 numPoints = 0;
142
143 points = new SHPPoint[numParts][];
144
145 try {
146 // create SHPPoints from the GM_Points array
147 for (int i = 0; i < numParts; i++) {
148
149 LineString ls = curve[i].getAsLineString();
150
151 numPoints += ls.getNumberOfPoints();
152
153 points[i] = new SHPPoint3D[ls.getNumberOfPoints()];
154
155 for (int j = 0; j < ls.getNumberOfPoints(); j++) {
156 points[i][j] = new SHPPoint3D( ls.getPositionAt(j) );
157 if (points[i][j].x > xmax) {
158 xmax = points[i][j].x;
159 } else if (points[i][j].x < xmin) {
160 xmin = points[i][j].x;
161 }
162 if (points[i][j].y > ymax) {
163 ymax = points[i][j].y;
164 } else if (points[i][j].y < ymin) {
165 ymin = points[i][j].y;
166 }
167 }
168
169 }
170 } catch(Exception e) {
171 System.out.println("SHPPolyLine:: " + e);
172 }
173
174 envelope = new SHPEnvelope(xmin,xmax,ymax,ymin);
175 }
176
177 public SHPPolyLine3D(SHPPoint3D[][] points) {
178 super( (Curve[])null );
179 this.points = points;
180 this.numParts = points.length;
181
182 }
183
184 }