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Last change
on this file since 4382 was 4285, checked in by bastiK, 13 years ago |
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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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