Version |
Date |
Download |
Amendments |
35 |
April 2008 |
Longitude wrap-around note clarified. For Oblique Mercator, corrected symbol in formula for longitude. For Krovak, clarified defining parameters. Amended Vertical Offset description and formula. Added geographic/topocentric conversions, geocentric/topocentric conversions, Vertical Perspective, Orthographic, Lambert Cylindrical Equal Area, ellipsoidal development of Equidistant Cylindrical. Removed section on identification of map projection method. |
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34 |
July 2007 |
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Note on longitude wrap-around added prior to preample to map projection formulas, section 1.4. For Laborde, corrected formula for q'. For Albers Equal Area, corrected formulae for α and β'. |
33 |
March 2007 |
For Krovak example, corrected axis names. |
|
32 |
February 2007 |
Descriptive text for Oblique Mercator amended; formula for Laborde projection for Madagascar added. Added polar aspect equations for Lambert Azimuthal Equal Area. Corrected example in polynomial transformation for Spain. For Lambert 1SP, corrected equation for r'. |
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31 |
August 2006 |
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Corrected sign of value for G in Modified Azimuthal Equidistant example. |
30 |
August 2006 |
Added Hyperbolic Cassini-Soldner. Corrected FE and FN values in example for Modified Azimuthal Equidistant. Added note to Krovak. Amended Abridged Molodensky description, corrected example. |
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29 |
April 2006 |
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Typographic errors corrected. (For oblique stereographic, corrected formula for w. For Lambert azimuthal equal area, changed example. For Albers equal area, corrected formulae for alpha. For modified azimuthal equidistant, corrected formula for c. For Krovak, corrected formula for theta', clarified formulae for tO and lat. For Cassini, in example corrected radian value of longitude of natural origin). References to EPSG updated. |
28 |
November 2005 |
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Corrected error in formula for t and false grid coordinates of 2SP example in Mercator projection |
27 |
September 2005 |
Miscellaneous linear coordinate operations paragraphs re-written to include reversibility and UKOOA P6. Improved formula for r' in Lambert Conic Near-Conformal. |
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26 |
August 2005 |
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Further correction to Lambert Azimuthal Equal Area formulae. Correction to Moldenski-Badekas example. |
25 |
May 2005 |
Amended reverse formulas for Lambert Conic Near-Conformal. Corrected Lambert Azimuthal Equal Area formulae. Symbol for l atitude of pseudo standard parallel parameter made consistent. Corrected Affine Orthogonal Geometric transformation reverse example. Added Modified Azimuthal Equidistant projection. |
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24 |
October 2004 |
From this revision, published as part 2 of a two-part set. Corrected equation for u in Oblique Mercsator. Added Guam projection, Geographic 3D to 2D conversion, vertical offset and gradient method, geoid models, bilinear interpolation methods. Added tables giving projection parameter definitions. Amended Molodensky-Badekas method name and added example. Added section on reversibility to Helmert 7-parameter transformations. Transformation section 2 reordered. Section 3 (concatenated operations) added. Problem in reverse formulas for Lambert Conic Near-Conformal to be resolved. |
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23 |
January 2004 |
Database codes for Polar Stereographic variants corrected. Degree representation conversions withdrawn. |
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22 |
December 2003 |
Errors in FE and FN values in example for Lambert Azimuthal Equal Area corrected. |
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21 |
October 2003 |
Typographic errors in example for Lambert Conic (Belgium) corrected. Polar Stereographic formulae extended for secant variants. General polynomial extended to degree 13. Added Abridged Molodensky and Lambert Azimuthal Equal Area examples and Reversible polynomial formulae. |
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20 |
May 2003 |
Font for Greek symbols in Albers section amended. |
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19 |
December 2002 |
Polynomial formulas amended. Formula for spherical radius in Equidistant Cylindrical projection amended. Formula for Krovak projection amended. Degree representation conversions added. Editorial amendments made to subscripts and superscripts. |
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18 |
August 2002 |
Revised to include ISO 19111 terminology. Section numbering revised. Added Preface. Lambert Conformal (West Orientated), Lambert Azimuthal Equal Area, Albers, Equidistant Cylindrical (Plate Carrée), TM zoned, Bonne, Molodensky-Badedas methods added. Errors in Transverse Mercator (South Orientated) formula corrected. |
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17 |
June 2001 |
Lambert Conformal, Mercator and Helmert formulas corrected. |
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16 |
December 2000 |
Lambert Conformal (Belgium) remarks revised; Oblique Mercator methods consolidated and formulas added. Similarity Transformation reversibility remarks amended. |
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15 |
June 2000 |
General Polynomial and Affine methods added |
|
14 |
December 1999 |
Stereographic and Tunisia Mining Grid formulas corrected. Krovacmethod added. |
|
13 |
July 1999 |
Lambert ConicNear Conformal and American Polyconic methods added |
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12 |
February 1999 |
Abridged Molodensky formulas corrected |
|
11 |
November 1998 |
Polynomial for Spain and Tunisia Mining Grid methods added |
|
10 |
May 1998 |
Additionally issued as an EPSG guidance note |
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1 |
December 1993 |
First release - POSC Epicentre |