Last change
on this file since 4673 was 4285, checked in by bastiK, 13 years ago |
major projection rework
More modular structure, inspired by Proj.4.
There are almost no semantic changes to the projection algorithms. Mostly factors of 'a' and 180/PI have been moved from one place to the other. In UTM_France_DOM, the ellipsoid conversion for the first 3 projections has been changed from hayford <-> GRS80 to hayford <-> WGS84.
Some redundant algorithms have been removed. In particular:
- UTM_France_DOM used to have its own Transverse Mercator implementation. It is different from the implementation in TransverseMercator.java as it has another series expansion. For EPSG::2975, there are numeric differences on centimeter scale. However, the new data fits better with Proj.4 output.
- Also removed are alternate implementations of LambertConformalConic. (They are all quite similar, though.)
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Property svn:eol-style
set to
native
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File size:
1.3 KB
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1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.projection;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import org.openstreetmap.josm.data.Bounds;
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7 | import org.openstreetmap.josm.data.coor.LatLon;
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8 | import org.openstreetmap.josm.data.projection.datum.GRS80Datum;
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9 |
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10 | /**
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11 | * LKS-92/ Latvia TM projection. Based on data from spatialreference.org.
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12 | * http://spatialreference.org/ref/epsg/3059/
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13 | *
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14 | * @author Viesturs Zarins
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15 | */
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16 | public class TransverseMercatorLV extends AbstractProjection {
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17 |
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18 | public TransverseMercatorLV() {
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19 | ellps = Ellipsoid.GRS80;
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20 | proj = new org.openstreetmap.josm.data.projection.proj.TransverseMercator(ellps);
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21 | datum = GRS80Datum.INSTANCE;
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22 | lon_0 = 24;
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23 | x_0 = 500000;
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24 | y_0 = -6000000;
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25 | k_0 = 0.9996;
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26 | }
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27 |
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28 | @Override
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29 | public String toString() {
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30 | return tr("LKS-92 (Latvia TM)");
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31 | }
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32 |
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33 | @Override
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34 | public Integer getEpsgCode() {
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35 | return 3059;
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36 | }
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37 |
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38 | @Override
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39 | public int hashCode() {
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40 | return toCode().hashCode();
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41 | }
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42 |
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43 | @Override
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44 | public String getCacheDirectoryName() {
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45 | return "epsg"+ getEpsgCode();
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46 | }
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47 |
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48 | @Override
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49 | public Bounds getWorldBoundsLatLon() {
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50 | return new Bounds(
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51 | new LatLon(-90.0, -180.0),
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52 | new LatLon(90.0, 180.0));
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53 | }
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54 | }
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