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Last change
on this file since 5226 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:
708 bytes
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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.projection.Ellipsoid;
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| 5 |
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| 6 | abstract public class AbstractDatum implements Datum {
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| 7 |
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| 8 | protected String name;
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| 9 | protected String proj4Id;
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| 10 | protected Ellipsoid ellps;
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| 11 |
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| 12 | public AbstractDatum(String name, String proj4Id, Ellipsoid ellps) {
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| 13 | this.name = name;
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| 14 | this.proj4Id = proj4Id;
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| 15 | this.ellps = ellps;
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| 16 | }
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| 17 |
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| 18 | @Override
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| 19 | public String getName() {
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| 20 | return name;
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| 21 | }
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| 22 |
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| 23 | @Override
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| 24 | public String getProj4Id() {
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| 25 | return proj4Id;
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| 26 | }
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| 27 |
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| 28 | @Override
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| 29 | public Ellipsoid getEllipsoid() {
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| 30 | return ellps;
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| 31 | }
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| 32 | }
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