| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.sis.referencing.operation.provider; |
| |
| import jakarta.xml.bind.annotation.XmlTransient; |
| import org.opengis.parameter.ParameterDescriptor; |
| import org.opengis.parameter.ParameterDescriptorGroup; |
| import org.apache.sis.parameter.Parameters; |
| import org.apache.sis.parameter.ParameterBuilder; |
| import org.apache.sis.metadata.iso.citation.Citations; |
| import org.apache.sis.referencing.operation.projection.NormalizedProjection; |
| |
| |
| /** |
| * The provider for <q>Modified Azimuthal Equidistant</q> projection (EPSG:9832). |
| * |
| * <h2>Relationship with "Azimuthal Equidistant"</h2> |
| * The <cite>Modified Azimuthal Equidistant</cite> projection is an approximation of a theoretically |
| * more generic oblique Azimuthal Equidistant projection. But Snyder's <u>Map Projection — a working |
| * manual</u> book actually gives formulas for the same scope as the one given by EPSG, namely for |
| * islands in Micronesia. Consequently, we assume that what is commonly presented by other libraries |
| * as a "generic" Azimuthal Equidistant projection is actually the Modified Azimuthal Equidistant |
| * approximation. |
| * |
| * @author Martin Desruisseaux (Geomatys) |
| * |
| * @see <a href="http://geotiff.maptools.org/proj_list/azimuthal_equidistant.html">GeoTIFF parameters for Azimuthal Equidistant</a> |
| */ |
| @XmlTransient |
| public final class ModifiedAzimuthalEquidistant extends MapProjection { |
| /** |
| * For cross-version compatibility. |
| */ |
| private static final long serialVersionUID = -9025540136016917410L; |
| |
| /** |
| * The operation parameter descriptor for the <cite>Latitude of natural origin</cite> (φ₀) parameter value. |
| * Valid values range is (-90 … 90)° and default value is 0°. |
| * |
| * <!-- Generated by ParameterNameTableGenerator --> |
| * <table class="sis"> |
| * <caption>Parameter names</caption> |
| * <tr><td> EPSG: </td><td> Latitude of natural origin </td></tr> |
| * <tr><td> OGC: </td><td> latitude_of_origin </td></tr> |
| * <tr><td> GeoTIFF: </td><td> CenterLat </td></tr> |
| * <tr><td> Proj4: </td><td> lat_0 </td></tr> |
| * </table> |
| */ |
| public static final ParameterDescriptor<Double> LATITUDE_OF_ORIGIN; |
| |
| /** |
| * The operation parameter descriptor for the <cite>Longitude of natural origin</cite> (λ₀) parameter value. |
| * Valid values range is [-180 … 180]° and default value is 0°. |
| * |
| * <!-- Generated by ParameterNameTableGenerator --> |
| * <table class="sis"> |
| * <caption>Parameter names</caption> |
| * <tr><td> EPSG: </td><td> Longitude of natural origin </td></tr> |
| * <tr><td> OGC: </td><td> central_meridian </td></tr> |
| * <tr><td> GeoTIFF: </td><td> CenterLong </td></tr> |
| * <tr><td> Proj4: </td><td> lon_0 </td></tr> |
| * </table> |
| */ |
| public static final ParameterDescriptor<Double> LONGITUDE_OF_ORIGIN; |
| |
| /** |
| * The operation parameter descriptor for the <cite>False easting</cite> (FE) parameter value. |
| * Valid values range is unrestricted and default value is 0 metre. |
| * |
| * <!-- Generated by ParameterNameTableGenerator --> |
| * <table class="sis"> |
| * <caption>Parameter names</caption> |
| * <tr><td> EPSG: </td><td> False easting </td></tr> |
| * <tr><td> OGC: </td><td> false_easting </td></tr> |
| * <tr><td> GeoTIFF: </td><td> FalseEasting </td></tr> |
| * <tr><td> Proj4: </td><td> x_0 </td></tr> |
| * </table> |
| */ |
| public static final ParameterDescriptor<Double> FALSE_EASTING; |
| |
| /** |
| * The operation parameter descriptor for the <cite>False northing</cite> (FN) parameter value. |
| * Valid values range is unrestricted and default value is 0 metre. |
| * |
| * <!-- Generated by ParameterNameTableGenerator --> |
| * <table class="sis"> |
| * <caption>Parameter names</caption> |
| * <tr><td> EPSG: </td><td> False northing </td></tr> |
| * <tr><td> OGC: </td><td> false_northing </td></tr> |
| * <tr><td> GeoTIFF: </td><td> FalseNorthing </td></tr> |
| * <tr><td> Proj4: </td><td> y_0 </td></tr> |
| * </table> |
| */ |
| public static final ParameterDescriptor<Double> FALSE_NORTHING; |
| |
| /** |
| * Returns a parameter with the same names and identifiers than the given parameter, |
| * except (OGC), ESRI and netCDF names which are omitted. We omit those names for now |
| * because we have not seen a reference about what those parameter names should be. |
| * The OGC names are kept despite that because it uses the same names for most projection. |
| * This may be revisited in future SIS versions. |
| * |
| * <p>The OGC and GeoTIFF names kept by this method are actually the names for |
| * <cite>Azimuthal Equidistant</cite> (not modified) projection.</p> |
| */ |
| private static ParameterBuilder erase(final ParameterBuilder builder, ParameterDescriptor<?> template) { |
| return builder.addNamesAndIdentifiers(template) // Copy from this parameter… |
| .rename(Citations.ESRI, (CharSequence[]) null) // … except for those names. |
| .rename(Citations.NETCDF, (CharSequence[]) null); |
| } |
| |
| /** |
| * The group of all parameters expected by this coordinate operation. |
| */ |
| private static final ParameterDescriptorGroup PARAMETERS; |
| static { |
| final ParameterBuilder builder = builder(); |
| LATITUDE_OF_ORIGIN = createLatitude (erase(builder, Orthographic.LATITUDE_OF_ORIGIN), true); |
| LONGITUDE_OF_ORIGIN = createLongitude(erase(builder, Orthographic.LONGITUDE_OF_ORIGIN)); |
| FALSE_EASTING = createShift (erase(builder, Orthographic.FALSE_EASTING)); |
| FALSE_NORTHING = createShift (erase(builder, Orthographic.FALSE_NORTHING)); |
| |
| PARAMETERS = builder.addIdentifier("9832") |
| .addName("Modified Azimuthal Equidistant") |
| .addName(Citations.GEOTIFF, "CT_AzimuthalEquidistant") // See discussion in class javadoc. |
| .addName(Citations.PROJ4, "aeqd") |
| .addIdentifier(Citations.GEOTIFF, "12") |
| .createGroupForMapProjection( |
| LATITUDE_OF_ORIGIN, |
| LONGITUDE_OF_ORIGIN, |
| FALSE_EASTING, |
| FALSE_NORTHING); |
| } |
| |
| /** |
| * Constructs a new provider. |
| */ |
| public ModifiedAzimuthalEquidistant() { |
| super(PARAMETERS); |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @return the map projection created from the given parameter values. |
| */ |
| @Override |
| protected final NormalizedProjection createProjection(final Parameters parameters) { |
| return new org.apache.sis.referencing.operation.projection.ModifiedAzimuthalEquidistant(this, parameters); |
| } |
| } |
