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 / SHPMultiLine.java @ 40559
History | View | Annotate | Download (12.3 KB)
| 1 |
/**
|
|---|---|
| 2 |
* gvSIG. Desktop Geographic Information System.
|
| 3 |
*
|
| 4 |
* Copyright (C) 2007-2013 gvSIG Association.
|
| 5 |
*
|
| 6 |
* This program is free software; you can redistribute it and/or
|
| 7 |
* modify it under the terms of the GNU General Public License
|
| 8 |
* as published by the Free Software Foundation; either version 3
|
| 9 |
* of the License, or (at your option) any later version.
|
| 10 |
*
|
| 11 |
* This program is distributed in the hope that it will be useful,
|
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 14 |
* GNU General Public License for more details.
|
| 15 |
*
|
| 16 |
* You should have received a copy of the GNU General Public License
|
| 17 |
* along with this program; if not, write to the Free Software
|
| 18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
| 19 |
* MA 02110-1301, USA.
|
| 20 |
*
|
| 21 |
* For any additional information, do not hesitate to contact us
|
| 22 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
| 23 |
*/
|
| 24 |
package org.gvsig.fmap.dal.store.shp.utils; |
| 25 |
|
| 26 |
import java.awt.geom.PathIterator; |
| 27 |
import java.nio.ByteBuffer; |
| 28 |
import java.nio.MappedByteBuffer; |
| 29 |
import java.util.ArrayList; |
| 30 |
import java.util.List; |
| 31 |
|
| 32 |
import org.gvsig.fmap.geom.Geometry; |
| 33 |
import org.gvsig.fmap.geom.GeometryLocator; |
| 34 |
import org.gvsig.fmap.geom.GeometryManager; |
| 35 |
import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
| 36 |
import org.gvsig.fmap.geom.Geometry.TYPES; |
| 37 |
import org.gvsig.fmap.geom.aggregate.MultiPrimitive; |
| 38 |
import org.gvsig.fmap.geom.exception.CreateGeometryException; |
| 39 |
import org.gvsig.fmap.geom.primitive.Circle; |
| 40 |
import org.gvsig.fmap.geom.primitive.Curve; |
| 41 |
import org.gvsig.fmap.geom.primitive.Envelope; |
| 42 |
import org.gvsig.fmap.geom.primitive.GeneralPathX; |
| 43 |
import org.gvsig.fmap.geom.primitive.OrientablePrimitive; |
| 44 |
import org.gvsig.fmap.geom.primitive.Point; |
| 45 |
import org.gvsig.fmap.geom.primitive.Primitive; |
| 46 |
import org.slf4j.Logger; |
| 47 |
import org.slf4j.LoggerFactory; |
| 48 |
|
| 49 |
|
| 50 |
/**
|
| 51 |
* Elemento shape de tipo multil?nea.
|
| 52 |
*
|
| 53 |
* @author Vicente Caballero Navarro
|
| 54 |
*/
|
| 55 |
public class SHPMultiLine implements SHPShape { |
| 56 |
protected int m_type; |
| 57 |
protected int[] parts; |
| 58 |
protected Point[] points; |
| 59 |
protected double[] zs; |
| 60 |
//double flatness = 0.8; // Por ejemplo. Cuanto m?s peque?o, m?s segmentos necesitar? la curva
|
| 61 |
private GeometryManager geomManager = GeometryLocator.getGeometryManager();
|
| 62 |
private static final Logger logger = LoggerFactory.getLogger(SHPShape.class); |
| 63 |
|
| 64 |
/**
|
| 65 |
* Crea un nuevo SHPMultiLine.
|
| 66 |
*/
|
| 67 |
public SHPMultiLine() {
|
| 68 |
m_type = SHP.POLYLINE2D; |
| 69 |
} |
| 70 |
|
| 71 |
/**
|
| 72 |
* Crea un nuevo SHPMultiLine.
|
| 73 |
*
|
| 74 |
* @param type Tipo de multil?nea.
|
| 75 |
*
|
| 76 |
* @throws ShapefileException
|
| 77 |
*/
|
| 78 |
public SHPMultiLine(int type) { |
| 79 |
if ((type != SHP.POLYLINE2D) &&
|
| 80 |
(type != SHP.POLYLINEM) && |
| 81 |
(type != SHP.POLYLINE3D)) {
|
| 82 |
// throw new ShapefileException("No es de tipo 3,13 ni 23");
|
| 83 |
} |
| 84 |
|
| 85 |
m_type = type; |
| 86 |
} |
| 87 |
|
| 88 |
/**
|
| 89 |
* @see com.iver.cit.gvsig.fmap.shp.SHPShape#getShapeType()
|
| 90 |
*/
|
| 91 |
public int getShapeType() { |
| 92 |
return m_type;
|
| 93 |
} |
| 94 |
|
| 95 |
/**
|
| 96 |
* @see com.iver.cit.gvsig.fmap.shp.SHPShape#read(MappedByteBuffer, int)
|
| 97 |
*/
|
| 98 |
public Geometry read(MappedByteBuffer buffer, int type) { |
| 99 |
// double minX = buffer.getDouble();
|
| 100 |
// double minY = buffer.getDouble();
|
| 101 |
// double maxX = buffer.getDouble();
|
| 102 |
// double maxY = buffer.getDouble();
|
| 103 |
// Rectangle2D rec = new Rectangle2D.Double(minX, minY, maxX - minX, maxY
|
| 104 |
// - maxY);
|
| 105 |
|
| 106 |
int numParts = buffer.getInt();
|
| 107 |
int numPoints = buffer.getInt(); //total number of points |
| 108 |
|
| 109 |
int[] partOffsets = new int[numParts]; |
| 110 |
|
| 111 |
for (int i = 0; i < numParts; i++) { |
| 112 |
partOffsets[i] = buffer.getInt(); |
| 113 |
} |
| 114 |
|
| 115 |
Point[] points = new Point[numPoints]; |
| 116 |
|
| 117 |
for (int t = 0; t < numPoints; t++) { |
| 118 |
try {
|
| 119 |
points[t] = (Point)geomManager.create(TYPES.POINT, SUBTYPES.GEOM2D);
|
| 120 |
points[t].setX(buffer.getDouble()); |
| 121 |
points[t].setY(buffer.getDouble()); |
| 122 |
} catch (CreateGeometryException e) {
|
| 123 |
logger.error("Error creating a point",e);
|
| 124 |
} |
| 125 |
} |
| 126 |
|
| 127 |
/* if (type == FConstant.SHAPE_TYPE_POLYLINEZ) {
|
| 128 |
//z min, max
|
| 129 |
buffer.position(buffer.position() + (2 * 8));
|
| 130 |
for (int t = 0; t < numPoints; t++) {
|
| 131 |
points[t].z = buffer.getDouble(); //z value
|
| 132 |
}
|
| 133 |
}
|
| 134 |
*/
|
| 135 |
Curve curve = null;
|
| 136 |
try {
|
| 137 |
curve = (Curve)geomManager.create(TYPES.CURVE, SUBTYPES.GEOM2D); |
| 138 |
curve.setGeneralPath(getGeneralPathX(points, partOffsets)); |
| 139 |
} catch (CreateGeometryException e) {
|
| 140 |
logger.error("Error creating the curve",e);
|
| 141 |
} |
| 142 |
return curve;
|
| 143 |
} |
| 144 |
|
| 145 |
/**
|
| 146 |
* @see com.iver.cit.gvsig.fmap.shp.SHPShape#write(ByteBuffer, IGeometry)
|
| 147 |
*/
|
| 148 |
public void write(ByteBuffer buffer, Geometry geometry) { |
| 149 |
Envelope env = geometry.getEnvelope(); |
| 150 |
|
| 151 |
buffer.putDouble(env.getMinimum(0));
|
| 152 |
buffer.putDouble(env.getMinimum(1));
|
| 153 |
buffer.putDouble(env.getMaximum(0));
|
| 154 |
buffer.putDouble(env.getMaximum(1));
|
| 155 |
int numParts = parts.length;
|
| 156 |
int npoints = points.length;
|
| 157 |
buffer.putInt(numParts); |
| 158 |
buffer.putInt(npoints); |
| 159 |
|
| 160 |
for (int i = 0; i < numParts; i++) { |
| 161 |
buffer.putInt(parts[i]); |
| 162 |
} |
| 163 |
|
| 164 |
for (int t = 0; t < npoints; t++) { |
| 165 |
buffer.putDouble(points[t].getX()); |
| 166 |
buffer.putDouble(points[t].getY()); |
| 167 |
} |
| 168 |
|
| 169 |
if (m_type == SHP.POLYLINE3D) {
|
| 170 |
double[] zExtreame = SHP.getZMinMax(zs); |
| 171 |
if (Double.isNaN(zExtreame[0])) { |
| 172 |
buffer.putDouble(0.0);
|
| 173 |
buffer.putDouble(0.0);
|
| 174 |
} else {
|
| 175 |
buffer.putDouble(zExtreame[0]);
|
| 176 |
buffer.putDouble(zExtreame[1]);
|
| 177 |
} |
| 178 |
for (int t = 0; t < npoints; t++) { |
| 179 |
double z = zs[t];
|
| 180 |
if (Double.isNaN(z)) { |
| 181 |
buffer.putDouble(0.0);
|
| 182 |
} else {
|
| 183 |
buffer.putDouble(z); |
| 184 |
} |
| 185 |
} |
| 186 |
|
| 187 |
} |
| 188 |
if (m_type == SHP.POLYLINEM) {
|
| 189 |
buffer.putDouble(-10E40);
|
| 190 |
buffer.putDouble(-10E40);
|
| 191 |
for (int t = 0; t < npoints; t++) { |
| 192 |
buffer.putDouble(-10E40);
|
| 193 |
} |
| 194 |
} |
| 195 |
|
| 196 |
} |
| 197 |
|
| 198 |
/**
|
| 199 |
* @see com.iver.cit.gvsig.fmap.shp.SHPShape#getLength(int)
|
| 200 |
*/
|
| 201 |
public int getLength(Geometry fgeometry) { |
| 202 |
int numlines;
|
| 203 |
int numpoints;
|
| 204 |
int length;
|
| 205 |
|
| 206 |
numlines = parts.length; |
| 207 |
numpoints = points.length; |
| 208 |
if (m_type == SHP.POLYLINE2D) {
|
| 209 |
length = 44 + (4 * numlines) + (numpoints * 16); |
| 210 |
} else if (m_type == SHP.POLYLINEM) { |
| 211 |
length = 44 + (4 * numlines) + (numpoints * 16) + |
| 212 |
(8 * numpoints) + 16; |
| 213 |
} else if (m_type == SHP.POLYLINE3D) { |
| 214 |
length = 44 + (4 * numlines) + (numpoints * 16) + |
| 215 |
(8 * numpoints) + 16; |
| 216 |
} else {
|
| 217 |
throw new IllegalStateException("Expected ShapeType of Arc, got " + |
| 218 |
m_type); |
| 219 |
} |
| 220 |
|
| 221 |
return length;
|
| 222 |
} |
| 223 |
|
| 224 |
/**
|
| 225 |
* DOCUMENT ME!
|
| 226 |
*
|
| 227 |
* @param po DOCUMENT ME!
|
| 228 |
* @param pa DOCUMENT ME!
|
| 229 |
*
|
| 230 |
* @return DOCUMENT ME!
|
| 231 |
*/
|
| 232 |
protected GeneralPathX getGeneralPathX(Point[] po, int[] pa) { |
| 233 |
GeneralPathX gPX = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD,
|
| 234 |
po.length); |
| 235 |
int j = 0; |
| 236 |
|
| 237 |
for (int i = 0; i < po.length; i++) { |
| 238 |
if (i == pa[j]) {
|
| 239 |
gPX.moveTo(po[i].getX(), po[i].getY()); |
| 240 |
|
| 241 |
if (j < (pa.length - 1)) { |
| 242 |
j++; |
| 243 |
} |
| 244 |
} else {
|
| 245 |
gPX.lineTo(po[i].getX(), po[i].getY()); |
| 246 |
} |
| 247 |
} |
| 248 |
|
| 249 |
return gPX;
|
| 250 |
} |
| 251 |
|
| 252 |
/**
|
| 253 |
* @see com.iver.cit.gvsig.fmap.shp.SHPShape#obtainsPoints(com.iver.cit.gvsig.fmap.core.GeneralPathXIterator)
|
| 254 |
*/
|
| 255 |
public void obtainsPoints(Geometry g) { |
| 256 |
ArrayList arrayPoints = new ArrayList(); |
| 257 |
ArrayList arrayParts = new ArrayList(); |
| 258 |
ArrayList arrayZs = new ArrayList(); |
| 259 |
|
| 260 |
boolean is3D = false; |
| 261 |
if ((SHP.POLYLINE3D == m_type) || (SHP.POLYGON3D == m_type)) {
|
| 262 |
if (g.getGeometryType().isTypeOf(Geometry.TYPES.AGGREGATE)) {
|
| 263 |
MultiPrimitive multiPrimitive = (MultiPrimitive)g; |
| 264 |
int countVertex = 0; |
| 265 |
for (int i = 0; i < multiPrimitive.getPrimitivesNumber(); i++) { |
| 266 |
OrientablePrimitive orientablePrimitive = (OrientablePrimitive)multiPrimitive.getPrimitiveAt(i); |
| 267 |
countVertex += orientablePrimitive.getNumVertices(); |
| 268 |
} |
| 269 |
|
| 270 |
zs = new double[countVertex]; |
| 271 |
int indexZS = 0; |
| 272 |
for (int nPrimitive = 0; nPrimitive < multiPrimitive.getPrimitivesNumber(); nPrimitive++) { |
| 273 |
OrientablePrimitive orientablePrimitive = (OrientablePrimitive)multiPrimitive.getPrimitiveAt(nPrimitive); |
| 274 |
for (int nVertex = 0; nVertex < orientablePrimitive.getNumVertices(); nVertex++) { |
| 275 |
zs[indexZS] = orientablePrimitive.getCoordinateAt(nVertex, 2);
|
| 276 |
} |
| 277 |
} |
| 278 |
} else {
|
| 279 |
OrientablePrimitive orientablePrimitive = (OrientablePrimitive)g; |
| 280 |
zs = new double[orientablePrimitive.getNumVertices()]; |
| 281 |
for (int i = 0; i < zs.length; i++) { |
| 282 |
zs[i] = orientablePrimitive.getCoordinateAt(i, 2);
|
| 283 |
} |
| 284 |
} |
| 285 |
is3D = true;
|
| 286 |
} |
| 287 |
|
| 288 |
|
| 289 |
if (g.getGeometryType().isTypeOf(Geometry.TYPES.AGGREGATE)) {
|
| 290 |
MultiPrimitive multiPrimitive = (MultiPrimitive)g; |
| 291 |
int index = 0; |
| 292 |
for (int i = 0; i < multiPrimitive.getPrimitivesNumber(); i++) { |
| 293 |
index = obtainsPoints( |
| 294 |
multiPrimitive.getPrimitiveAt(i), |
| 295 |
arrayPoints, |
| 296 |
arrayParts, |
| 297 |
arrayZs, |
| 298 |
is3D, |
| 299 |
index); |
| 300 |
} |
| 301 |
}else{
|
| 302 |
obtainsPoints((Primitive)g, arrayPoints, arrayParts, arrayZs, is3D, 0);
|
| 303 |
} |
| 304 |
|
| 305 |
Integer[] integers = (Integer[]) arrayParts.toArray(new Integer[0]); |
| 306 |
parts = new int[integers.length]; |
| 307 |
for (int i = 0; i < integers.length; i++) { |
| 308 |
parts[i] = integers[i].intValue(); |
| 309 |
} |
| 310 |
if (arrayPoints == null) { |
| 311 |
points = new Point[0]; |
| 312 |
return;
|
| 313 |
} |
| 314 |
points = (Point[]) arrayPoints.toArray(new Point[0]); |
| 315 |
|
| 316 |
if (is3D) {
|
| 317 |
Double[] doubleZs = (Double[])arrayZs.toArray(new Double[0]); |
| 318 |
zs = new double[doubleZs.length]; |
| 319 |
for (int i = 0; i < doubleZs.length; i++){ |
| 320 |
zs[i] = doubleZs[i].doubleValue(); |
| 321 |
} |
| 322 |
} |
| 323 |
} |
| 324 |
|
| 325 |
private int obtainsPoints(Primitive primitive, List arrayPoints, List arrayParts, List arrayZs, boolean is3D, int index) { |
| 326 |
PathIterator theIterator = primitive.getPathIterator(null, geomManager.getFlatness()); |
| 327 |
double[] theData = new double[6]; |
| 328 |
java.awt.geom.Point2D pFirst = null;
|
| 329 |
int pos = 0; |
| 330 |
|
| 331 |
boolean first = true; |
| 332 |
|
| 333 |
Double firstZ = null; |
| 334 |
while (!theIterator.isDone()) {
|
| 335 |
int theType = theIterator.currentSegment(theData);
|
| 336 |
switch (theType) {
|
| 337 |
case PathIterator.SEG_MOVETO: |
| 338 |
if (first) {
|
| 339 |
first = false;
|
| 340 |
} else {
|
| 341 |
if (m_type == SHP.POLYGON2D ||
|
| 342 |
m_type == SHP.POLYGON3D || |
| 343 |
m_type == SHP.POLYGONM) {
|
| 344 |
try {
|
| 345 |
Point point = geomManager.createPoint(pFirst.getX(), pFirst.getY(), SUBTYPES.GEOM2D);
|
| 346 |
if (!arrayPoints.get(arrayPoints.size()-1).equals(point)) { |
| 347 |
arrayPoints.add(point); |
| 348 |
if (is3D) {
|
| 349 |
arrayZs.add(firstZ); |
| 350 |
} |
| 351 |
} |
| 352 |
} catch (CreateGeometryException e) {
|
| 353 |
logger.error("Error creating a point", e);
|
| 354 |
} |
| 355 |
} |
| 356 |
} |
| 357 |
arrayParts.add(new Integer(index)); |
| 358 |
pFirst = new java.awt.geom.Point2D.Double(theData[0], theData[1]); |
| 359 |
try {
|
| 360 |
arrayPoints.add(geomManager.createPoint(theData[0], theData[1], SUBTYPES.GEOM2D)); |
| 361 |
} catch (CreateGeometryException e1) {
|
| 362 |
logger.error("Error creating a point", e1);
|
| 363 |
} |
| 364 |
if (is3D) {
|
| 365 |
Double z = 0D; |
| 366 |
if(pos < zs.length)
|
| 367 |
z = new Double(zs[pos]); |
| 368 |
firstZ = z; |
| 369 |
arrayZs.add(z); |
| 370 |
pos++; |
| 371 |
} |
| 372 |
break;
|
| 373 |
|
| 374 |
case PathIterator.SEG_LINETO: |
| 375 |
try {
|
| 376 |
arrayPoints.add(geomManager.createPoint(theData[0], theData[1], SUBTYPES.GEOM2D)); |
| 377 |
} catch (CreateGeometryException e) {
|
| 378 |
logger.error("Error creating a point", e);
|
| 379 |
} |
| 380 |
if (is3D){
|
| 381 |
Double z = 0D; |
| 382 |
if(pos < zs.length)
|
| 383 |
z = new Double(zs[pos]); |
| 384 |
arrayZs.add(z); |
| 385 |
pos++; |
| 386 |
} |
| 387 |
break;
|
| 388 |
|
| 389 |
case PathIterator.SEG_QUADTO: |
| 390 |
System.out.println("Not supported here"); |
| 391 |
|
| 392 |
break;
|
| 393 |
|
| 394 |
case PathIterator.SEG_CUBICTO: |
| 395 |
System.out.println("Not supported here"); |
| 396 |
|
| 397 |
break;
|
| 398 |
|
| 399 |
case PathIterator.SEG_CLOSE: |
| 400 |
try{
|
| 401 |
Point point = geomManager.createPoint(pFirst.getX(), pFirst.getY(), SUBTYPES.GEOM2D);
|
| 402 |
if (!arrayPoints.get(arrayPoints.size()-1).equals(point)) { |
| 403 |
arrayPoints.add(point); |
| 404 |
if (is3D) {
|
| 405 |
arrayZs.add(firstZ); |
| 406 |
} |
| 407 |
index++; |
| 408 |
} |
| 409 |
} catch (CreateGeometryException e) {
|
| 410 |
logger.error("Error creating a point", e);
|
| 411 |
} |
| 412 |
break;
|
| 413 |
} //end switch
|
| 414 |
if(theType != PathIterator.SEG_CLOSE) |
| 415 |
index++; |
| 416 |
theIterator.next(); |
| 417 |
} |
| 418 |
return index;
|
| 419 |
} |
| 420 |
} |