Last change
on this file since 16553 was 16553, checked in by Don-vip, 4 years ago |
see #19334 - javadoc fixes + protected constructors for abstract classes
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1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.projection.datum;
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3 |
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4 | import org.openstreetmap.josm.data.coor.LatLon;
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5 | import org.openstreetmap.josm.data.projection.Ellipsoid;
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6 |
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7 | /**
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8 | * Represents a geodetic datum.
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9 | *
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10 | * Basically it provides conversion functions from and to the WGS84 datum.
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11 | * @since 4285
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12 | */
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13 | public interface Datum {
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14 |
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15 | /**
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16 | * Returns a human readable name of this projection.
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17 | * @return a human readable name of this projection
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18 | */
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19 | String getName();
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20 |
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21 | /**
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22 | * Replies the Proj.4 identifier.
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23 | * @return the Proj.4 identifier (as reported by cs2cs -ld)
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24 | * If no id exists, return null.
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25 | */
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26 | String getProj4Id();
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27 |
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28 | /**
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29 | * Returns the ellipsoid associated with this datum.
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30 | * @return the ellipsoid associated with this datum
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31 | */
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32 | Ellipsoid getEllipsoid();
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33 |
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34 | /**
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35 | * Convert lat/lon from this datum to {@link Ellipsoid#WGS84} datum.
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36 | * @param ll original lat/lon in this datum
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37 | * @return lat/lon converted to WGS84
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38 | */
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39 | LatLon toWGS84(LatLon ll);
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40 |
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41 | /**
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42 | * Convert lat/lon from {@link Ellipsoid#WGS84} to this datum.
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43 | * @param ll original lat/lon in WGS84
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44 | * @return converted lat/lon in this datum
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45 | */
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46 | LatLon fromWGS84(LatLon ll);
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47 | }
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