root / branches / libProjection_v2_0_prep / libraries / libJCRS / src / org / geotools / referencing / operation / projection / IdrKrovak.java @ 27137
History | View | Annotate | Download (19.6 KB)
| 1 |
/*
|
|---|---|
| 2 |
* Geotools2 - OpenSource mapping toolkit
|
| 3 |
* http://geotools.org
|
| 4 |
* (C) 2002-2005, Geotools Project Managment Committee (PMC)
|
| 5 |
*
|
| 6 |
* This library is free software; you can redistribute it and/or
|
| 7 |
* modify it under the terms of the GNU Lesser General Public
|
| 8 |
* License as published by the Free Software Foundation;
|
| 9 |
* version 2.1 of the License.
|
| 10 |
*
|
| 11 |
* This library 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 GNU
|
| 14 |
* Lesser General Public License for more details.
|
| 15 |
*/
|
| 16 |
package org.geotools.referencing.operation.projection; |
| 17 |
|
| 18 |
// J2SE dependencies and extensions
|
| 19 |
import java.awt.geom.Point2D; |
| 20 |
import java.util.Collection; |
| 21 |
|
| 22 |
import javax.units.SI; |
| 23 |
import javax.units.NonSI; |
| 24 |
import javax.units.Unit; |
| 25 |
|
| 26 |
import org.geotools.metadata.iso.citation.CitationImpl; |
| 27 |
import org.geotools.referencing.NamedIdentifier; |
| 28 |
import org.geotools.resources.XMath; |
| 29 |
import org.geotools.resources.cts.ResourceKeys; |
| 30 |
import org.geotools.resources.cts.Resources; |
| 31 |
import org.opengis.parameter.ParameterDescriptor; |
| 32 |
import org.opengis.parameter.ParameterDescriptorGroup; |
| 33 |
import org.opengis.parameter.ParameterNotFoundException; |
| 34 |
import org.opengis.parameter.ParameterValueGroup; |
| 35 |
import org.opengis.referencing.operation.ConicProjection; |
| 36 |
import org.opengis.referencing.operation.MathTransform; |
| 37 |
|
| 38 |
|
| 39 |
/**
|
| 40 |
* Krovak Oblique Conformal Conic projection (EPSG code 9819). This projection is
|
| 41 |
* used in the Czech Republic and Slovakia under the name 'Krovak' projection. The
|
| 42 |
* geographic coordinates on the ellipsoid are first reduced to conformal
|
| 43 |
* coordinates on the conformal (Gaussian) sphere. These spherical coordinates
|
| 44 |
* are then projected onto the oblique cone and converted to grid coordinates.
|
| 45 |
* The pseudo standard parallel is defined on the conformal sphere after its
|
| 46 |
* rotation, to obtain the oblique aspect of the projection. It is then the
|
| 47 |
* parallel on this sphere at which the map projection is true to scale; on
|
| 48 |
* the ellipsoid it maps as a complex curve.
|
| 49 |
*
|
| 50 |
* <p>The compulsory parameters are just the ellipsoid characteristics.
|
| 51 |
* All other parameters are optional and have defaults to match the common
|
| 52 |
* usage with Krovak projection.</p>
|
| 53 |
*
|
| 54 |
* <p>In general the axis of Krovak projection are defined as westing and
|
| 55 |
* southing (not easting and northing) and they are also reverted, so if the
|
| 56 |
* value of projected coordinates should (and in <var>y</var>, <var>x</var>
|
| 57 |
* order in Krovak) be positive the 'Axis' parameter for projection should be
|
| 58 |
* defined explicitly like this (in wkt):</p>
|
| 59 |
*
|
| 60 |
* <pre>PROJCS["S-JTSK (Ferro) / Krovak",
|
| 61 |
* .
|
| 62 |
* .
|
| 63 |
* .
|
| 64 |
*
|
| 65 |
* PROJECTION["Krovak"]
|
| 66 |
* PARAMETER["semi_major", 6377397.155],
|
| 67 |
* PARAMETER["semi_minor", 6356078.963],
|
| 68 |
* UNIT["meter",1.0],
|
| 69 |
* AXIS["x", WEST],
|
| 70 |
* AXIS["y", SOUTH]]
|
| 71 |
* </pre>Axis in Krovak:
|
| 72 |
* <pre>
|
| 73 |
* y<------------------+
|
| 74 |
* |
|
| 75 |
* Czech. Rep. |
|
| 76 |
* |
|
| 77 |
* x
|
| 78 |
* </pre>
|
| 79 |
* <p>By default, the axis are 'easting, northing' so the values of projected coordinates
|
| 80 |
* are negative and in (and in <var>y</var>, <var>x</var> order in Krovak - it is cold
|
| 81 |
* Krovak GIS version).</p>
|
| 82 |
*
|
| 83 |
* <p><strong>References:</strong>
|
| 84 |
* <ul>
|
| 85 |
* <li>Proj-4.4.7 available at <A HREF="http://www.remotesensing.org/proj">www.remotesensing.org/proj</A><br>
|
| 86 |
* Relevant files is: {@code PJ_krovak.c}</li>
|
| 87 |
* <li>"Coordinate Conversions and Transformations including Formulas" available at, <A
|
| 88 |
* HREF="http://www.remotesensing.org/geotiff/proj_list/guid7.html">http://www.remotesensing.org/geotiff/proj_list/guid7.html</A></li>
|
| 89 |
* </ul>
|
| 90 |
* </p>
|
| 91 |
*
|
| 92 |
* @since 2.4
|
| 93 |
* @version $Id: IdrKrovak.java 12357 2007-06-27 09:05:41Z dguerrero $
|
| 94 |
* @source $URL: http://svn.geotools.org/geotools/tags/2.3.0/module/referencing/src/org/geotools/referencing/operation/projection/Krovak.java $
|
| 95 |
* @author Jan Jezek
|
| 96 |
* @author Martin Desruisseaux
|
| 97 |
*
|
| 98 |
* @see <A HREF="http://www.remotesensing.org/geotiff/proj_list/krovak.html">Krovak on
|
| 99 |
* RemoteSensing.org </A>
|
| 100 |
* @see <A HREF="http://www.remotesensing.org/geotiff/proj_list/guid7.html">Krovak on "Coordinate
|
| 101 |
* Conversions and Transformations including Formulas"</A>
|
| 102 |
*/
|
| 103 |
public class IdrKrovak extends MapProjection { |
| 104 |
/**
|
| 105 |
* Maximum number of iterations for iterative computations.
|
| 106 |
*/
|
| 107 |
private static final int MAXIMUM_ITERATIONS = 15; |
| 108 |
|
| 109 |
/**
|
| 110 |
* When to stop the iteration.
|
| 111 |
*/
|
| 112 |
private static final double ITERATION_TOLERANCE = 1E-11; |
| 113 |
|
| 114 |
/**
|
| 115 |
* Azimuth of the centre line passing through the centre of the projection.
|
| 116 |
* This is equals to the co-latitude of the cone axis at point of intersection
|
| 117 |
* with the ellipsoid.
|
| 118 |
*/
|
| 119 |
protected final double azimuth; |
| 120 |
|
| 121 |
/**
|
| 122 |
* Latitude of pseudo standard parallel.
|
| 123 |
*/
|
| 124 |
protected final double pseudoStandardParallel; |
| 125 |
|
| 126 |
/**
|
| 127 |
* Useful variables calculated from parameters defined by user.
|
| 128 |
*/
|
| 129 |
private final double sinAzim, cosAzim, n, tanS2, alfa, hae, k1, ka, ro0, rop; |
| 130 |
|
| 131 |
/**
|
| 132 |
* Useful constant - 45 in radians.
|
| 133 |
*/
|
| 134 |
private static final double s45 = 0.785398163397448; |
| 135 |
|
| 136 |
/**
|
| 137 |
* Constructs a new map projection from the supplied parameters.
|
| 138 |
*
|
| 139 |
* @param parameters The parameter values in standard units.
|
| 140 |
* @throws ParameterNotFoundException if a mandatory parameter is missing.
|
| 141 |
*/
|
| 142 |
protected IdrKrovak(final ParameterValueGroup parameters) throws ParameterNotFoundException { |
| 143 |
super(parameters);
|
| 144 |
final Collection expected = getParameterDescriptors().descriptors(); |
| 145 |
// Fetch parameters from user input.
|
| 146 |
latitudeOfOrigin = doubleValue(expected, Provider.LATITUDE_OF_CENTER, parameters);
|
| 147 |
centralMeridian = doubleValue(expected, Provider.LONGITUDE_OF_CENTER, parameters);
|
| 148 |
azimuth = doubleValue(expected, Provider.AZIMUTH, parameters);
|
| 149 |
pseudoStandardParallel = doubleValue(expected, Provider.PSEUDO_STANDARD_PARALLEL, parameters);
|
| 150 |
scaleFactor = doubleValue(expected, Provider.SCALE_FACTOR, parameters);
|
| 151 |
ensureLatitudeInRange (Provider.LATITUDE_OF_CENTER, latitudeOfOrigin, false); |
| 152 |
ensureLongitudeInRange(Provider.LONGITUDE_OF_CENTER, centralMeridian, false); |
| 153 |
|
| 154 |
// Calculates useful constants.
|
| 155 |
sinAzim = Math.sin(azimuth);
|
| 156 |
cosAzim = Math.cos(azimuth);
|
| 157 |
n = Math.sin(pseudoStandardParallel);
|
| 158 |
tanS2 = Math.tan(pseudoStandardParallel / 2 + s45); |
| 159 |
|
| 160 |
final double sinLat, cosLat, cosL2, u0; |
| 161 |
sinLat = Math.sin(latitudeOfOrigin);
|
| 162 |
cosLat = Math.cos(latitudeOfOrigin);
|
| 163 |
cosL2 = cosLat * cosLat; |
| 164 |
alfa = Math.sqrt(1 + ((excentricitySquared * (cosL2*cosL2)) / (1 - excentricitySquared))); |
| 165 |
hae = alfa * excentricity / 2;
|
| 166 |
u0 = Math.asin(sinLat / alfa);
|
| 167 |
|
| 168 |
final double g, esl; |
| 169 |
esl = excentricity * sinLat; |
| 170 |
g = Math.pow((1 - esl) / (1 + esl), (alfa * excentricity) / 2); |
| 171 |
k1 = Math.pow(Math.tan(latitudeOfOrigin/2 + s45), alfa) * g / Math.tan(u0/2 + s45); |
| 172 |
ka = Math.pow(1 / k1, -1 / alfa); |
| 173 |
|
| 174 |
final double radius; |
| 175 |
radius = Math.sqrt(1 - excentricitySquared) / (1 - (excentricitySquared * (sinLat * sinLat))); |
| 176 |
|
| 177 |
ro0 = scaleFactor * radius / Math.tan(pseudoStandardParallel);
|
| 178 |
rop = ro0 * Math.pow(tanS2, n);
|
| 179 |
} |
| 180 |
|
| 181 |
/**
|
| 182 |
* {@inheritDoc}
|
| 183 |
*/
|
| 184 |
public ParameterDescriptorGroup getParameterDescriptors() {
|
| 185 |
return Provider.PARAMETERS; |
| 186 |
} |
| 187 |
|
| 188 |
/**
|
| 189 |
* {@inheritDoc}
|
| 190 |
*/
|
| 191 |
public ParameterValueGroup getParameterValues() {
|
| 192 |
final Collection expected = getParameterDescriptors().descriptors(); |
| 193 |
final ParameterValueGroup values = super.getParameterValues(); |
| 194 |
set(expected, Provider.LATITUDE_OF_CENTER, values, latitudeOfOrigin );
|
| 195 |
set(expected, Provider.LONGITUDE_OF_CENTER, values, centralMeridian );
|
| 196 |
set(expected, Provider.AZIMUTH, values, azimuth );
|
| 197 |
set(expected, Provider.PSEUDO_STANDARD_PARALLEL, values, pseudoStandardParallel);
|
| 198 |
set(expected, Provider.SCALE_FACTOR, values, scaleFactor );
|
| 199 |
return values;
|
| 200 |
} |
| 201 |
|
| 202 |
/**
|
| 203 |
* Transforms the specified (<var>λ</var>,<var>φ</var>) coordinates
|
| 204 |
* (units in radians) and stores the result in {@code ptDst} (linear distance
|
| 205 |
* on a unit sphere).
|
| 206 |
*/
|
| 207 |
protected Point2D transformNormalized(final double lambda, final double phi, Point2D ptDst) |
| 208 |
throws ProjectionException
|
| 209 |
{
|
| 210 |
final double esp = excentricity * Math.sin(phi); |
| 211 |
final double gfi = Math.pow(((1. - esp) / (1. + esp)), hae); |
| 212 |
final double u = 2 * (Math.atan(Math.pow(Math.tan(phi/2 + s45), alfa) / k1 * gfi) - s45); |
| 213 |
final double deltav = -lambda * alfa; |
| 214 |
final double cosU = Math.cos(u); |
| 215 |
final double s = Math.asin((cosAzim * Math.sin(u)) + (sinAzim * cosU * Math.cos(deltav))); |
| 216 |
final double d = Math.asin(cosU * Math.sin(deltav) / Math.cos(s)); |
| 217 |
final double eps = n * d; |
| 218 |
final double ro = rop / Math.pow(Math.tan(s/2 + s45), n); |
| 219 |
|
| 220 |
/* x and y are reverted */
|
| 221 |
final double y = -(ro * Math.cos(eps)); |
| 222 |
final double x = -(ro * Math.sin(eps)); |
| 223 |
|
| 224 |
if (ptDst != null) { |
| 225 |
ptDst.setLocation(x, y); |
| 226 |
return ptDst;
|
| 227 |
} |
| 228 |
return new Point2D.Double(x, y); |
| 229 |
} |
| 230 |
|
| 231 |
/**
|
| 232 |
* Transforms the specified (<var>x</var>,<var>y</var>) coordinate
|
| 233 |
* and stores the result in {@code ptDst}.
|
| 234 |
*/
|
| 235 |
protected Point2D inverseTransformNormalized(final double x, final double y, Point2D ptDst) |
| 236 |
throws ProjectionException
|
| 237 |
{
|
| 238 |
// x -> southing, y -> westing
|
| 239 |
final double ro = XMath.hypot(x, y); |
| 240 |
final double eps = Math.atan2(-x, -y); |
| 241 |
final double d = eps / n; |
| 242 |
final double s = 2 * (Math.atan(Math.pow(ro0/ro, 1/n) * tanS2) - s45); |
| 243 |
final double cs = Math.cos(s); |
| 244 |
final double u = Math.asin((cosAzim * Math.sin(s)) - (sinAzim * cs * Math.cos(d))); |
| 245 |
final double kau = ka * Math.pow(Math.tan((u / 2.) + s45), 1 / alfa); |
| 246 |
final double deltav = Math.asin((cs * Math.sin(d)) / Math.cos(u)); |
| 247 |
final double lambda = -deltav / alfa; |
| 248 |
double phi = 0; |
| 249 |
double fi1 = u;
|
| 250 |
|
| 251 |
// iteration calculation
|
| 252 |
for (int i=MAXIMUM_ITERATIONS;;) { |
| 253 |
fi1 = phi; |
| 254 |
final double esf = excentricity * Math.sin(fi1); |
| 255 |
phi = 2. * (Math.atan(kau * Math.pow((1. + esf) / (1. - esf), excentricity/2.)) - s45); |
| 256 |
if (Math.abs(fi1 - phi) <= ITERATION_TOLERANCE) { |
| 257 |
break;
|
| 258 |
} |
| 259 |
if (--i < 0) { |
| 260 |
throw new ProjectionException(Resources.format(ResourceKeys.ERROR_NO_CONVERGENCE)); |
| 261 |
} |
| 262 |
} |
| 263 |
|
| 264 |
if (ptDst != null) { |
| 265 |
ptDst.setLocation(lambda, phi); |
| 266 |
return ptDst;
|
| 267 |
} |
| 268 |
return new Point2D.Double(lambda, phi); |
| 269 |
} |
| 270 |
|
| 271 |
|
| 272 |
|
| 273 |
|
| 274 |
//////////////////////////////////////////////////////////////////////////////////////////
|
| 275 |
//////////////////////////////////////////////////////////////////////////////////////////
|
| 276 |
//////// ////////
|
| 277 |
//////// PROVIDER ////////
|
| 278 |
//////// ////////
|
| 279 |
//////////////////////////////////////////////////////////////////////////////////////////
|
| 280 |
//////////////////////////////////////////////////////////////////////////////////////////
|
| 281 |
|
| 282 |
/**
|
| 283 |
* The {@link org.geotools.referencing.operation.MathTransformProvider}
|
| 284 |
* for an {@link IdrKrovak krovak} projection.
|
| 285 |
*
|
| 286 |
* @author jezekjan
|
| 287 |
*
|
| 288 |
* @see org.geotools.referencing.operation.DefaultMathTransformFactory
|
| 289 |
*/
|
| 290 |
public static class Provider extends AbstractProvider { |
| 291 |
/**
|
| 292 |
* The operation parameter descriptor for the {@linkPlain #latitudeOfOrigin
|
| 293 |
* latitude of origin} parameter value. Valid values range is from -90 to 90.
|
| 294 |
* Default value is 49.5.
|
| 295 |
*/
|
| 296 |
public static final ParameterDescriptor LATITUDE_OF_CENTER = createDescriptor( |
| 297 |
new NamedIdentifier[] { |
| 298 |
new NamedIdentifier(CitationImpl.OGC, "latitude_of_center"), |
| 299 |
new NamedIdentifier(CitationImpl.EPSG, "Latitude of projection center"), |
| 300 |
new NamedIdentifier(CitationImpl.EPSG, "Latitude of projection centre"), |
| 301 |
new NamedIdentifier(CitationImpl.GEOTIFF, "CenterLat") |
| 302 |
}, 49.5, -90, 90, NonSI.DEGREE_ANGLE); |
| 303 |
|
| 304 |
/**
|
| 305 |
* The operation parameter descriptor for the {@linkPlain #centralMeridian central
|
| 306 |
* meridian} parameter value. Valid values range is from -180 to 180. Default value
|
| 307 |
* is 2450' (= 4250' from Ferro prime meridian).
|
| 308 |
*/
|
| 309 |
public static final ParameterDescriptor LONGITUDE_OF_CENTER = createDescriptor( |
| 310 |
new NamedIdentifier[] { |
| 311 |
new NamedIdentifier(CitationImpl.OGC, "longitude_of_center"), |
| 312 |
new NamedIdentifier(CitationImpl.EPSG, "Longitude of projection center"), |
| 313 |
new NamedIdentifier(CitationImpl.EPSG, "Longitude of projection centre"), |
| 314 |
new NamedIdentifier(CitationImpl.GEOTIFF, "CenterLong") |
| 315 |
}, 42.5-17.66666666666667, -180, 180, NonSI.DEGREE_ANGLE); |
| 316 |
|
| 317 |
/**
|
| 318 |
* The operation parameter descriptor for the {@linkPlain #azimuth azimuth} parameter
|
| 319 |
* value. Valid values range is from -90 to 90. Default value is 30.28813972222.
|
| 320 |
*/
|
| 321 |
public static final ParameterDescriptor AZIMUTH = createDescriptor( |
| 322 |
new NamedIdentifier[] { |
| 323 |
new NamedIdentifier(CitationImpl.OGC, "azimuth"), |
| 324 |
new NamedIdentifier(CitationImpl.EPSG, "Azimuth of the center line"), |
| 325 |
new NamedIdentifier(CitationImpl.EPSG, "Azimuth of initial line"), |
| 326 |
new NamedIdentifier(CitationImpl.GEOTIFF, "AzimuthAngle") |
| 327 |
}, 30.28813972222222, 0, 360, NonSI.DEGREE_ANGLE); |
| 328 |
|
| 329 |
/**
|
| 330 |
* The operation parameter descriptor for the pseudo {@linkplain #pseudoStandardParallel
|
| 331 |
* pseudi standard parallel} parameter value. Valid values range is from -90 to 90.
|
| 332 |
* Default value is 78.5.
|
| 333 |
*/
|
| 334 |
public static final ParameterDescriptor PSEUDO_STANDARD_PARALLEL = |
| 335 |
createDescriptor(new NamedIdentifier[] { |
| 336 |
new NamedIdentifier(CitationImpl.OGC, "pseudo_standard_parallel_1"), |
| 337 |
new NamedIdentifier(CitationImpl.EPSG, "Latitude of Pseudo Standard Parallel") |
| 338 |
}, 78.5, -90, 90, NonSI.DEGREE_ANGLE); |
| 339 |
|
| 340 |
/**
|
| 341 |
* The operation parameter descriptor for the {@link #scaleFactor scaleFactor}
|
| 342 |
* parameter value. Valid values range is from 0 to infinity. Default value is 1.
|
| 343 |
*/
|
| 344 |
public static final ParameterDescriptor SCALE_FACTOR = createDescriptor( |
| 345 |
new NamedIdentifier[] { |
| 346 |
new NamedIdentifier(CitationImpl.OGC, "scale_factor"), |
| 347 |
new NamedIdentifier(CitationImpl.EPSG, "Scale factor on the pseudo standard line"), |
| 348 |
new NamedIdentifier(CitationImpl.EPSG, "Scale factor on pseudo standard parallel"), |
| 349 |
new NamedIdentifier(CitationImpl.GEOTIFF, "ScaleAtCenter") |
| 350 |
}, 0.9999, 0, Double.POSITIVE_INFINITY, Unit.ONE); |
| 351 |
|
| 352 |
/**
|
| 353 |
* The operation parameter descriptor for the {@link #scaleFactor scaleFactor}
|
| 354 |
* parameter value. Valid values range is from 0 to infinity. Default value is 1.
|
| 355 |
*/
|
| 356 |
public static final ParameterDescriptor FALSEEASTING = createDescriptor( |
| 357 |
new NamedIdentifier[] { |
| 358 |
new NamedIdentifier(CitationImpl.EPSG, "Easting at projection centre") |
| 359 |
}, 0.0, Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY, SI.METER); |
| 360 |
|
| 361 |
/**
|
| 362 |
* The operation parameter descriptor for the {@link #scaleFactor scaleFactor}
|
| 363 |
* parameter value. Valid values range is from 0 to infinity. Default value is 1.
|
| 364 |
*/
|
| 365 |
public static final ParameterDescriptor FALSENORTHING = createDescriptor( |
| 366 |
new NamedIdentifier[] { |
| 367 |
new NamedIdentifier(CitationImpl.EPSG, "Northing at projection centre") |
| 368 |
}, 0.0, Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY, SI.METER); |
| 369 |
|
| 370 |
/**
|
| 371 |
* The parameters group.
|
| 372 |
*/
|
| 373 |
static final ParameterDescriptorGroup PARAMETERS = createDescriptorGroup(new NamedIdentifier[] { |
| 374 |
new NamedIdentifier(CitationImpl.OGC, "Krovak"), |
| 375 |
new NamedIdentifier(CitationImpl.GEOTIFF, "Krovak"), |
| 376 |
new NamedIdentifier(CitationImpl.EPSG, "Krovak Oblique Conformal Conic"), |
| 377 |
new NamedIdentifier(CitationImpl.EPSG, "Krovak Oblique Conic Conformal"), |
| 378 |
new NamedIdentifier(CitationImpl.EPSG, "9819"), |
| 379 |
new NamedIdentifier(new CitationImpl("IDR"), "IDR") |
| 380 |
}, |
| 381 |
new ParameterDescriptor[] { |
| 382 |
SEMI_MAJOR, SEMI_MINOR, LATITUDE_OF_CENTER, LONGITUDE_OF_CENTER, |
| 383 |
AZIMUTH, PSEUDO_STANDARD_PARALLEL, SCALE_FACTOR, |
| 384 |
FALSEEASTING, FALSENORTHING |
| 385 |
}); |
| 386 |
|
| 387 |
/**
|
| 388 |
* Constructs a new provider.
|
| 389 |
*/
|
| 390 |
public Provider() { |
| 391 |
super(PARAMETERS);
|
| 392 |
} |
| 393 |
|
| 394 |
/**
|
| 395 |
* Returns the operation type for this map projection.
|
| 396 |
*/
|
| 397 |
protected Class getOperationType() { |
| 398 |
return ConicProjection.class;
|
| 399 |
} |
| 400 |
|
| 401 |
/**
|
| 402 |
* Creates a transform from the specified group of parameter values.
|
| 403 |
*
|
| 404 |
* @param parameters The group of parameter values.
|
| 405 |
* @return The created math transform.
|
| 406 |
* @throws ParameterNotFoundException if a required parameter was not found.
|
| 407 |
*/
|
| 408 |
public MathTransform createMathTransform(final ParameterValueGroup parameters) |
| 409 |
throws ParameterNotFoundException
|
| 410 |
{
|
| 411 |
return new IdrKrovak(parameters); |
| 412 |
} |
| 413 |
} |
| 414 |
|
| 415 |
/**
|
| 416 |
* Returns a hash value for this projection.
|
| 417 |
*/
|
| 418 |
public int hashCode() { |
| 419 |
final long code = Double.doubleToLongBits(azimuth) ^ |
| 420 |
Double.doubleToLongBits(pseudoStandardParallel);
|
| 421 |
return ((int)code ^ (int)(code >>> 32)) + 37*super.hashCode(); |
| 422 |
} |
| 423 |
|
| 424 |
/**
|
| 425 |
* Compares the specified object with this map projection for equality.
|
| 426 |
*/
|
| 427 |
public boolean equals(final Object object) { |
| 428 |
if (object == this) { |
| 429 |
// Slight optimization
|
| 430 |
return true; |
| 431 |
} |
| 432 |
if (super.equals(object)) { |
| 433 |
final IdrKrovak that = (IdrKrovak) object;
|
| 434 |
return equals(azimuth, that.azimuth) &&
|
| 435 |
equals(pseudoStandardParallel, that.pseudoStandardParallel); |
| 436 |
} |
| 437 |
return false; |
| 438 |
} |
| 439 |
} |