--- name: "PDL::Transform::Proj4" section: "3pm" platform: "linux" package: "pdl" version: "1:2.081-2" release: "Debian 12 (Bookworm)" platforms: ["linux"] url: "https://new.carta.tech/PDL::Transform::Proj4" --- # PDL::Transform::Proj4(3pm) PDL::Transform interface to the Proj4 projection library ## NAME PDL::Transform::Proj4 - PDL::Transform interface to the Proj4 projection library ## SYNOPSIS ``` # Using the generalized proj interface: # Make an orthographic map of Earth use PDL::Transform::Cartography; use PDL::Transform::Proj4; $x = earth_coast(); $x = graticule(10,2)->glue(1,$x); $t = t_proj( proj_params => "+proj=ortho +ellps=WGS84 +lon_0=-90 +lat_0=40" ); $w = pgwin(xs); $w->lines($t->apply($x)->clean_lines()); # Using the aliased functions: # Make an orthographic map of Earth use PDL::Transform::Cartography; use PDL::Transform::Proj4; $x = earth_coast(); $x = graticule(10,2)->glue(1,$x); $t = t_proj_ortho( ellps => 'WGS84', lon_0 => -90, lat_0 => 40 ) $w = pgwin(xs); $w->lines($t->apply($x)->clean_lines()); ``` ## DESCRIPTION Works like PDL::Transform::Cartography, but using the proj library in the background. Please see the proj library docs at \ for more information on proj, and how to use the library. ## GENERALIZED INTERFACE The main object here is the PDL::Transform::Proj4 object, aliased to the **t\_proj()** function. This object accepts all of the standard options described below, but mainly is there to be called with just the **proj\_params** option defined. When options are used, they must be used with a '+' before them when placed in the proj\_params string, but that is not required otherwise. See the SYNOPSIS above. ### ALIASED INTERFACE Other than **t\_proj()**, all of the other transforms below have been autogenerated, and may not work properly. The main problem is determining the parameters a projection requires from the proj library itself. Due to the difficulties in doing this, there may be times when the proj docs specify a parameter for a projection that won't work using the anon-hash type specification. In that case, just throw that parameter in the proj\_params string, and everything should work fine. ## PARAMETERS AVAILABLE IN ALL PROJECTIONS ### General Parameters *proj\_params* This is a string containing the proj "plus style" parameters. This would be similar to what you would put on the command line for the 'proj' tool. Like "+proj=ortho +ellps=WGS84 +lon\_0=-90 +lat\_0=40". This parameter overrides the others below when it contains parameters that are also specified explicitly. *proj* The proj projection code to use (like ortho...) *x\_0* Cartesian X offset for the output of the transformation *y\_0* Cartesian Y offset for the output of the transformation *lat\_0* Central latitude for the projection. NOTE: This may mean other things depending on the projection selected, read the proj docs! *lon\_0* Central longitude for the projection. NOTE: This may mean other things depending on the projection selected, read the proj docs! *units* Cartesian units used for the output of the projection. NOTE: Like most of the options here, this is likely useless in the current implementation of this library. *init* Specify a file:unit for proj to use for its runtime defaults. See the proj docs. *no\_defs* Don't load any defaults. See the proj docs. *over* Normally, the transformation limits the output to between -180 and 180 degrees (or the cartesian equivalent), but with this option that behavior is turned off. *geoc* Input values are geocentric coordinates. ### Earth Figure Parameters *ellps* Ellipsoid datum to use. Ex: WGS72, WGS74. See the proj docs and command line tool for list of possibilities ('proj -le'). *R* Radius of the Earth. *R\_A* Radius of a sphere with equivalent surface area of specified ellipse. *R\_V* Radius of a sphere with equivalent volume of specified ellipse. *R\_a* Arithmetic mean of the major and minor axis, Ra = (a + b)/2. *R\_g* Geometric mean of the major and minor axis, Rg = (ab)1/2. *R\_h* Harmonic mean of the major and minor axis, Rh = 2ab/(a + b). *R\_lat\_a=phi* Arithmetic mean of the principle radii at latitude phi. *R\_lat\_g=phi* Geometric mean of the principle radii at latitude phi. *b* Semiminor axis or polar radius *f* Flattening *rf* Reciprocal flattening, +rf=1/f *e* Eccentricity +e=e *es* Eccentricity squared +es=e2 ## FUNCTIONS ### t\_proj This is the main entry point for the generalized interface. See above on its usage. ### t\_proj\_adams\_hemi Autogenerated transformation function for Proj4 projection code adams\_hemi. The full name for this projection is Adams Hemisphere in a Square. ### t\_proj\_adams\_ws1 Autogenerated transformation function for Proj4 projection code adams\_ws1. The full name for this projection is Adams World in a Square I. ### t\_proj\_adams\_ws2 Autogenerated transformation function for Proj4 projection code adams\_ws2. The full name for this projection is Adams World in a Square II. ### t\_proj\_aea Autogenerated transformation function for Proj4 projection code aea. The full name for this projection is Albers Equal Area. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_aeqd Autogenerated transformation function for Proj4 projection code aeqd. The full name for this projection is Azimuthal Equidistant. Projection Parameters - guam - lat\_0 ### t\_proj\_affine Autogenerated transformation function for Proj4 projection code affine. The full name for this projection is Affine transformation. ### t\_proj\_airy Autogenerated transformation function for Proj4 projection code airy. The full name for this projection is Airy. Projection Parameters - lat\_b - no\_cut ### t\_proj\_aitoff Autogenerated transformation function for Proj4 projection code aitoff. The full name for this projection is Aitoff. ### t\_proj\_alsk Autogenerated transformation function for Proj4 projection code alsk. The full name for this projection is Modified Stereographic of Alaska. ### t\_proj\_apian Autogenerated transformation function for Proj4 projection code apian. The full name for this projection is Apian Globular I. ### t\_proj\_august Autogenerated transformation function for Proj4 projection code august. The full name for this projection is August Epicycloidal. ### t\_proj\_axisswap Autogenerated transformation function for Proj4 projection code axisswap. The full name for this projection is Axis ordering. ### t\_proj\_bacon Autogenerated transformation function for Proj4 projection code bacon. The full name for this projection is Bacon Globular. ### t\_proj\_bertin1953 Autogenerated transformation function for Proj4 projection code bertin1953. The full name for this projection is Bertin 1953. ### t\_proj\_bipc Autogenerated transformation function for Proj4 projection code bipc. The full name for this projection is Bipolar conic of western hemisphere. ### t\_proj\_boggs Autogenerated transformation function for Proj4 projection code boggs. The full name for this projection is Boggs Eumorphic. ### t\_proj\_bonne Autogenerated transformation function for Proj4 projection code bonne. The full name for this projection is Bonne (Werner lat\_1=90). Projection Parameters - lat\_1 ### t\_proj\_calcofi Autogenerated transformation function for Proj4 projection code calcofi. The full name for this projection is Cal Coop Ocean Fish Invest Lines/Stations. ### t\_proj\_cart Autogenerated transformation function for Proj4 projection code cart. The full name for this projection is Geodetic/cartesian conversions. ### t\_proj\_cass Autogenerated transformation function for Proj4 projection code cass. The full name for this projection is Cassini. ### t\_proj\_cc Autogenerated transformation function for Proj4 projection code cc. The full name for this projection is Central Cylindrical. ### t\_proj\_ccon Autogenerated transformation function for Proj4 projection code ccon. The full name for this projection is Central Conic. Projection Parameters - lat\_1 ### t\_proj\_cea Autogenerated transformation function for Proj4 projection code cea. The full name for this projection is Equal Area Cylindrical. Projection Parameters - lat\_ts ### t\_proj\_chamb Autogenerated transformation function for Proj4 projection code chamb. The full name for this projection is Chamberlin Trimetric. Projection Parameters - lat\_1 - lat\_2 - lat\_3 - lon\_1 - lon\_2 - lon\_3 ### t\_proj\_col\_urban Autogenerated transformation function for Proj4 projection code col\_urban. The full name for this projection is Colombia Urban. Projection Parameters - h\_0 ### t\_proj\_collg Autogenerated transformation function for Proj4 projection code collg. The full name for this projection is Collignon. ### t\_proj\_comill Autogenerated transformation function for Proj4 projection code comill. The full name for this projection is Compact Miller. ### t\_proj\_crast Autogenerated transformation function for Proj4 projection code crast. The full name for this projection is Craster Parabolic (Putnins P4). ### t\_proj\_defmodel Autogenerated transformation function for Proj4 projection code defmodel. The full name for this projection is Deformation model. ### t\_proj\_deformation Autogenerated transformation function for Proj4 projection code deformation. The full name for this projection is Kinematic grid shift. ### t\_proj\_denoy Autogenerated transformation function for Proj4 projection code denoy. The full name for this projection is Denoyer Semi-Elliptical. ### t\_proj\_eck1 Autogenerated transformation function for Proj4 projection code eck1. The full name for this projection is Eckert I. ### t\_proj\_eck2 Autogenerated transformation function for Proj4 projection code eck2. The full name for this projection is Eckert II. ### t\_proj\_eck3 Autogenerated transformation function for Proj4 projection code eck3. The full name for this projection is Eckert III. ### t\_proj\_eck4 Autogenerated transformation function for Proj4 projection code eck4. The full name for this projection is Eckert IV. ### t\_proj\_eck5 Autogenerated transformation function for Proj4 projection code eck5. The full name for this projection is Eckert V. ### t\_proj\_eck6 Autogenerated transformation function for Proj4 projection code eck6. The full name for this projection is Eckert VI. ### t\_proj\_eqc Autogenerated transformation function for Proj4 projection code eqc. The full name for this projection is Equidistant Cylindrical (Plate Carree). Projection Parameters - lat\_00 - lat\_ts ### t\_proj\_eqdc Autogenerated transformation function for Proj4 projection code eqdc. The full name for this projection is Equidistant Conic. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_eqearth Autogenerated transformation function for Proj4 projection code eqearth. The full name for this projection is Equal Earth. ### t\_proj\_etmerc Autogenerated transformation function for Proj4 projection code etmerc. The full name for this projection is Extended Transverse Mercator. ### t\_proj\_euler Autogenerated transformation function for Proj4 projection code euler. The full name for this projection is Euler. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_fahey Autogenerated transformation function for Proj4 projection code fahey. The full name for this projection is Fahey. ### t\_proj\_fouc Autogenerated transformation function for Proj4 projection code fouc. The full name for this projection is Foucaut. ### t\_proj\_fouc\_s Autogenerated transformation function for Proj4 projection code fouc\_s. The full name for this projection is Foucaut Sinusoidal. ### t\_proj\_gall Autogenerated transformation function for Proj4 projection code gall. The full name for this projection is Gall (Gall Stereographic). ### t\_proj\_geoc Autogenerated transformation function for Proj4 projection code geoc. The full name for this projection is Geocentric Latitude. ### t\_proj\_geocent Autogenerated transformation function for Proj4 projection code geocent. The full name for this projection is Geocentric. ### t\_proj\_geogoffset Autogenerated transformation function for Proj4 projection code geogoffset. The full name for this projection is Geographic Offset. ### t\_proj\_geos Autogenerated transformation function for Proj4 projection code geos. The full name for this projection is Geostationary Satellite View. Projection Parameters - h ### t\_proj\_gins8 Autogenerated transformation function for Proj4 projection code gins8. The full name for this projection is Ginsburg VIII (TsNIIGAiK). ### t\_proj\_gn\_sinu Autogenerated transformation function for Proj4 projection code gn\_sinu. The full name for this projection is General Sinusoidal Series. Projection Parameters - m - n ### t\_proj\_gnom Autogenerated transformation function for Proj4 projection code gnom. The full name for this projection is Gnomonic. ### t\_proj\_goode Autogenerated transformation function for Proj4 projection code goode. The full name for this projection is Goode Homolosine. ### t\_proj\_gs48 Autogenerated transformation function for Proj4 projection code gs48. The full name for this projection is Modified Stereographic of 48 U.S.. ### t\_proj\_gs50 Autogenerated transformation function for Proj4 projection code gs50. The full name for this projection is Modified Stereographic of 50 U.S.. ### t\_proj\_gstmerc Autogenerated transformation function for Proj4 projection code gstmerc. The full name for this projection is Gauss-Schreiber Transverse Mercator (aka Gauss-Laborde Reunion). Projection Parameters - k\_0 - lat\_0 - lon\_0 ### t\_proj\_guyou Autogenerated transformation function for Proj4 projection code guyou. The full name for this projection is Guyou. ### t\_proj\_hammer Autogenerated transformation function for Proj4 projection code hammer. The full name for this projection is Hammer & Eckert-Greifendorff. Projection Parameters - M - W ### t\_proj\_hatano Autogenerated transformation function for Proj4 projection code hatano. The full name for this projection is Hatano Asymmetrical Equal Area. ### t\_proj\_healpix Autogenerated transformation function for Proj4 projection code healpix. The full name for this projection is HEALPix. Projection Parameters - rot\_xy ### t\_proj\_helmert Autogenerated transformation function for Proj4 projection code helmert. The full name for this projection is 3(6)-, 4(8)- and 7(14)-parameter Helmert shift. ### t\_proj\_hgridshift Autogenerated transformation function for Proj4 projection code hgridshift. The full name for this projection is Horizontal grid shift. ### t\_proj\_horner Autogenerated transformation function for Proj4 projection code horner. The full name for this projection is Horner polynomial evaluation. ### t\_proj\_igh Autogenerated transformation function for Proj4 projection code igh. The full name for this projection is Interrupted Goode Homolosine. ### t\_proj\_igh\_o Autogenerated transformation function for Proj4 projection code igh\_o. The full name for this projection is Interrupted Goode Homolosine Oceanic View. ### t\_proj\_imoll Autogenerated transformation function for Proj4 projection code imoll. The full name for this projection is Interrupted Mollweide. ### t\_proj\_imoll\_o Autogenerated transformation function for Proj4 projection code imoll\_o. The full name for this projection is Interrupted Mollweide Oceanic View. ### t\_proj\_imw\_p Autogenerated transformation function for Proj4 projection code imw\_p. The full name for this projection is International Map of the World Polyconic. Projection Parameters - lat\_1 - lat\_2 - lon\_1 ### t\_proj\_isea Autogenerated transformation function for Proj4 projection code isea. The full name for this projection is Icosahedral Snyder Equal Area. ### t\_proj\_kav5 Autogenerated transformation function for Proj4 projection code kav5. The full name for this projection is Kavrayskiy V. ### t\_proj\_kav7 Autogenerated transformation function for Proj4 projection code kav7. The full name for this projection is Kavrayskiy VII. ### t\_proj\_krovak Autogenerated transformation function for Proj4 projection code krovak. The full name for this projection is Krovak. ### t\_proj\_labrd Autogenerated transformation function for Proj4 projection code labrd. The full name for this projection is Laborde. Projection Parameters - lat\_0 ### t\_proj\_laea Autogenerated transformation function for Proj4 projection code laea. The full name for this projection is Lambert Azimuthal Equal Area. ### t\_proj\_lagrng Autogenerated transformation function for Proj4 projection code lagrng. The full name for this projection is Lagrange. Projection Parameters - W ### t\_proj\_larr Autogenerated transformation function for Proj4 projection code larr. The full name for this projection is Larrivee. ### t\_proj\_lask Autogenerated transformation function for Proj4 projection code lask. The full name for this projection is Laskowski. ### t\_proj\_latlon Autogenerated transformation function for Proj4 projection code latlon. The full name for this projection is Lat/long (Geodetic alias). ### t\_proj\_latlong Autogenerated transformation function for Proj4 projection code latlong. The full name for this projection is Lat/long (Geodetic alias). ### t\_proj\_lcc Autogenerated transformation function for Proj4 projection code lcc. The full name for this projection is Lambert Conformal Conic. Projection Parameters - k\_0 - lat\_0 - lat\_1 - lat\_2 ### t\_proj\_lcca Autogenerated transformation function for Proj4 projection code lcca. The full name for this projection is Lambert Conformal Conic Alternative. Projection Parameters - lat\_0 ### t\_proj\_leac Autogenerated transformation function for Proj4 projection code leac. The full name for this projection is Lambert Equal Area Conic. Projection Parameters - lat\_1 - south ### t\_proj\_lee\_os Autogenerated transformation function for Proj4 projection code lee\_os. The full name for this projection is Lee Oblated Stereographic. ### t\_proj\_longlat Autogenerated transformation function for Proj4 projection code longlat. The full name for this projection is Lat/long (Geodetic alias). ### t\_proj\_lonlat Autogenerated transformation function for Proj4 projection code lonlat. The full name for this projection is Lat/long (Geodetic). ### t\_proj\_loxim Autogenerated transformation function for Proj4 projection code loxim. The full name for this projection is Loximuthal. ### t\_proj\_lsat Autogenerated transformation function for Proj4 projection code lsat. The full name for this projection is Space oblique for LANDSAT. Projection Parameters - lsat - path ### t\_proj\_mbt\_fps Autogenerated transformation function for Proj4 projection code mbt\_fps. The full name for this projection is McBryde-Thomas Flat-Pole Sine (No. 2). ### t\_proj\_mbt\_s Autogenerated transformation function for Proj4 projection code mbt\_s. The full name for this projection is McBryde-Thomas Flat-Polar Sine (No. 1). ### t\_proj\_mbtfpp Autogenerated transformation function for Proj4 projection code mbtfpp. The full name for this projection is McBride-Thomas Flat-Polar Parabolic. ### t\_proj\_mbtfpq Autogenerated transformation function for Proj4 projection code mbtfpq. The full name for this projection is McBryde-Thomas Flat-Polar Quartic. ### t\_proj\_mbtfps Autogenerated transformation function for Proj4 projection code mbtfps. The full name for this projection is McBryde-Thomas Flat-Polar Sinusoidal. ### t\_proj\_merc Autogenerated transformation function for Proj4 projection code merc. The full name for this projection is Mercator. Projection Parameters - lat\_ts ### t\_proj\_mil\_os Autogenerated transformation function for Proj4 projection code mil\_os. The full name for this projection is Miller Oblated Stereographic. ### t\_proj\_mill Autogenerated transformation function for Proj4 projection code mill. The full name for this projection is Miller Cylindrical. ### t\_proj\_misrsom Autogenerated transformation function for Proj4 projection code misrsom. The full name for this projection is Space oblique for MISR. Projection Parameters - path ### t\_proj\_moll Autogenerated transformation function for Proj4 projection code moll. The full name for this projection is Mollweide. ### t\_proj\_molobadekas Autogenerated transformation function for Proj4 projection code molobadekas. The full name for this projection is Molodensky-Badekas transformation. ### t\_proj\_molodensky Autogenerated transformation function for Proj4 projection code molodensky. The full name for this projection is Molodensky transform. ### t\_proj\_murd1 Autogenerated transformation function for Proj4 projection code murd1. The full name for this projection is Murdoch I. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_murd2 Autogenerated transformation function for Proj4 projection code murd2. The full name for this projection is Murdoch II. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_murd3 Autogenerated transformation function for Proj4 projection code murd3. The full name for this projection is Murdoch III. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_natearth Autogenerated transformation function for Proj4 projection code natearth. The full name for this projection is Natural Earth. ### t\_proj\_natearth2 Autogenerated transformation function for Proj4 projection code natearth2. The full name for this projection is Natural Earth 2. ### t\_proj\_nell Autogenerated transformation function for Proj4 projection code nell. The full name for this projection is Nell. ### t\_proj\_nell\_h Autogenerated transformation function for Proj4 projection code nell\_h. The full name for this projection is Nell-Hammer. ### t\_proj\_nicol Autogenerated transformation function for Proj4 projection code nicol. The full name for this projection is Nicolosi Globular. ### t\_proj\_noop Autogenerated transformation function for Proj4 projection code noop. The full name for this projection is No operation. ### t\_proj\_nsper Autogenerated transformation function for Proj4 projection code nsper. The full name for this projection is Near-sided perspective. Projection Parameters - h ### t\_proj\_nzmg Autogenerated transformation function for Proj4 projection code nzmg. The full name for this projection is New Zealand Map Grid. ### t\_proj\_ob\_tran Autogenerated transformation function for Proj4 projection code ob\_tran. The full name for this projection is General Oblique Transformation. Projection Parameters - o\_alpha - o\_lat\_1 - o\_lat\_2 - o\_lat\_c - o\_lat\_p - o\_lon\_1 - o\_lon\_2 - o\_lon\_c - o\_lon\_p - o\_proj ### t\_proj\_ocea Autogenerated transformation function for Proj4 projection code ocea. The full name for this projection is Oblique Cylindrical Equal Area. Projection Parameters - lat\_1 - lat\_2 - lon\_1 - lon\_2 ### t\_proj\_oea Autogenerated transformation function for Proj4 projection code oea. The full name for this projection is Oblated Equal Area. Projection Parameters - m - n - theta ### t\_proj\_omerc Autogenerated transformation function for Proj4 projection code omerc. The full name for this projection is Oblique Mercator. Projection Parameters - alpha - gamma - lat\_1 - lat\_2 - lon\_1 - lon\_2 - lonc - no\_off ### t\_proj\_ortel Autogenerated transformation function for Proj4 projection code ortel. The full name for this projection is Ortelius Oval. ### t\_proj\_ortho Autogenerated transformation function for Proj4 projection code ortho. The full name for this projection is Orthographic. ### t\_proj\_patterson Autogenerated transformation function for Proj4 projection code patterson. The full name for this projection is Patterson Cylindrical. ### t\_proj\_pconic Autogenerated transformation function for Proj4 projection code pconic. The full name for this projection is Perspective Conic. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_peirce\_q Autogenerated transformation function for Proj4 projection code peirce\_q. The full name for this projection is Peirce Quincuncial. ### t\_proj\_pipeline Autogenerated transformation function for Proj4 projection code pipeline. The full name for this projection is Transformation pipeline manager. ### t\_proj\_poly Autogenerated transformation function for Proj4 projection code poly. The full name for this projection is Polyconic (American). ### t\_proj\_pop Autogenerated transformation function for Proj4 projection code pop. The full name for this projection is Retrieve coordinate value from pipeline stack. ### t\_proj\_push Autogenerated transformation function for Proj4 projection code push. The full name for this projection is Save coordinate value on pipeline stack. ### t\_proj\_putp1 Autogenerated transformation function for Proj4 projection code putp1. The full name for this projection is Putnins P1. ### t\_proj\_putp2 Autogenerated transformation function for Proj4 projection code putp2. The full name for this projection is Putnins P2. ### t\_proj\_putp3 Autogenerated transformation function for Proj4 projection code putp3. The full name for this projection is Putnins P3. ### t\_proj\_putp3p Autogenerated transformation function for Proj4 projection code putp3p. The full name for this projection is Putnins P3'. ### t\_proj\_putp4p Autogenerated transformation function for Proj4 projection code putp4p. The full name for this projection is Putnins P4'. ### t\_proj\_putp5 Autogenerated transformation function for Proj4 projection code putp5. The full name for this projection is Putnins P5. ### t\_proj\_putp5p Autogenerated transformation function for Proj4 projection code putp5p. The full name for this projection is Putnins P5'. ### t\_proj\_putp6 Autogenerated transformation function for Proj4 projection code putp6. The full name for this projection is Putnins P6. ### t\_proj\_putp6p Autogenerated transformation function for Proj4 projection code putp6p. The full name for this projection is Putnins P6'. ### t\_proj\_qsc Autogenerated transformation function for Proj4 projection code qsc. The full name for this projection is Quadrilateralized Spherical Cube. ### t\_proj\_qua\_aut Autogenerated transformation function for Proj4 projection code qua\_aut. The full name for this projection is Quartic Authalic. ### t\_proj\_rhealpix Autogenerated transformation function for Proj4 projection code rhealpix. The full name for this projection is rHEALPix. Projection Parameters - north\_square - south\_square ### t\_proj\_robin Autogenerated transformation function for Proj4 projection code robin. The full name for this projection is Robinson. ### t\_proj\_rouss Autogenerated transformation function for Proj4 projection code rouss. The full name for this projection is Roussilhe Stereographic. ### t\_proj\_rpoly Autogenerated transformation function for Proj4 projection code rpoly. The full name for this projection is Rectangular Polyconic. Projection Parameters - lat\_ts ### t\_proj\_s2 Autogenerated transformation function for Proj4 projection code s2. The full name for this projection is S2. ### t\_proj\_sch Autogenerated transformation function for Proj4 projection code sch. The full name for this projection is Spherical Cross-track Height. Projection Parameters - h\_0 - phdg\_0 - plat\_0 - plon\_0 ### t\_proj\_set Autogenerated transformation function for Proj4 projection code set. The full name for this projection is Set coordinate value. ### t\_proj\_sinu Autogenerated transformation function for Proj4 projection code sinu. The full name for this projection is Sinusoidal (Sanson-Flamsteed). ### t\_proj\_somerc Autogenerated transformation function for Proj4 projection code somerc. The full name for this projection is Swiss. Obl. Mercator. ### t\_proj\_stere Autogenerated transformation function for Proj4 projection code stere. The full name for this projection is Stereographic. Projection Parameters - lat\_ts ### t\_proj\_sterea Autogenerated transformation function for Proj4 projection code sterea. The full name for this projection is Oblique Stereographic Alternative. ### t\_proj\_tcc Autogenerated transformation function for Proj4 projection code tcc. The full name for this projection is Transverse Central Cylindrical. ### t\_proj\_tcea Autogenerated transformation function for Proj4 projection code tcea. The full name for this projection is Transverse Cylindrical Equal Area. ### t\_proj\_times Autogenerated transformation function for Proj4 projection code times. The full name for this projection is Times. ### t\_proj\_tinshift Autogenerated transformation function for Proj4 projection code tinshift. The full name for this projection is Triangulation based transformation. ### t\_proj\_tissot Autogenerated transformation function for Proj4 projection code tissot. The full name for this projection is Tissot. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_tmerc Autogenerated transformation function for Proj4 projection code tmerc. The full name for this projection is Transverse Mercator. Projection Parameters - approx ### t\_proj\_tobmerc Autogenerated transformation function for Proj4 projection code tobmerc. The full name for this projection is Tobler-Mercator. ### t\_proj\_topocentric Autogenerated transformation function for Proj4 projection code topocentric. The full name for this projection is Geocentric/Topocentric conversion. ### t\_proj\_tpeqd Autogenerated transformation function for Proj4 projection code tpeqd. The full name for this projection is Two Point Equidistant. Projection Parameters - lat\_1 - lat\_2 - lon\_1 - lon\_2 ### t\_proj\_tpers Autogenerated transformation function for Proj4 projection code tpers. The full name for this projection is Tilted perspective. Projection Parameters - azi - h - tilt ### t\_proj\_unitconvert Autogenerated transformation function for Proj4 projection code unitconvert. The full name for this projection is Unit conversion. ### t\_proj\_ups Autogenerated transformation function for Proj4 projection code ups. The full name for this projection is Universal Polar Stereographic. Projection Parameters - south ### t\_proj\_urm5 Autogenerated transformation function for Proj4 projection code urm5. The full name for this projection is Urmaev V. Projection Parameters - alpha - n - q ### t\_proj\_urmfps Autogenerated transformation function for Proj4 projection code urmfps. The full name for this projection is Urmaev Flat-Polar Sinusoidal. Projection Parameters - n ### t\_proj\_utm Autogenerated transformation function for Proj4 projection code utm. The full name for this projection is Universal Transverse Mercator (UTM). Projection Parameters - approx - south - zone ### t\_proj\_vandg Autogenerated transformation function for Proj4 projection code vandg. The full name for this projection is van der Grinten (I). ### t\_proj\_vandg2 Autogenerated transformation function for Proj4 projection code vandg2. The full name for this projection is van der Grinten II. ### t\_proj\_vandg3 Autogenerated transformation function for Proj4 projection code vandg3. The full name for this projection is van der Grinten III. ### t\_proj\_vandg4 Autogenerated transformation function for Proj4 projection code vandg4. The full name for this projection is van der Grinten IV. ### t\_proj\_vertoffset Autogenerated transformation function for Proj4 projection code vertoffset. The full name for this projection is Vertical Offset and Slope. Projection Parameters - dh - lat\_0 - lon\_0 - slope\_lat - slope\_lon ### t\_proj\_vgridshift Autogenerated transformation function for Proj4 projection code vgridshift. The full name for this projection is Vertical grid shift. ### t\_proj\_vitk1 Autogenerated transformation function for Proj4 projection code vitk1. The full name for this projection is Vitkovsky I. Projection Parameters - lat\_1 - lat\_2 ### t\_proj\_wag1 Autogenerated transformation function for Proj4 projection code wag1. The full name for this projection is Wagner I (Kavrayskiy VI). ### t\_proj\_wag2 Autogenerated transformation function for Proj4 projection code wag2. The full name for this projection is Wagner II. ### t\_proj\_wag3 Autogenerated transformation function for Proj4 projection code wag3. The full name for this projection is Wagner III. Projection Parameters - lat\_ts ### t\_proj\_wag4 Autogenerated transformation function for Proj4 projection code wag4. The full name for this projection is Wagner IV. ### t\_proj\_wag5 Autogenerated transformation function for Proj4 projection code wag5. The full name for this projection is Wagner V. ### t\_proj\_wag6 Autogenerated transformation function for Proj4 projection code wag6. The full name for this projection is Wagner VI. ### t\_proj\_wag7 Autogenerated transformation function for Proj4 projection code wag7. The full name for this projection is Wagner VII. ### t\_proj\_webmerc Autogenerated transformation function for Proj4 projection code webmerc. The full name for this projection is Web Mercator / Pseudo Mercator. ### t\_proj\_weren Autogenerated transformation function for Proj4 projection code weren. The full name for this projection is Werenskiold I. ### t\_proj\_wink1 Autogenerated transformation function for Proj4 projection code wink1. The full name for this projection is Winkel I. Projection Parameters - lat\_ts ### t\_proj\_wink2 Autogenerated transformation function for Proj4 projection code wink2. The full name for this projection is Winkel II. Projection Parameters - lat\_1 ### t\_proj\_wintri Autogenerated transformation function for Proj4 projection code wintri. The full name for this projection is Winkel Tripel. Projection Parameters - lat\_1 ### t\_proj\_xyzgridshift Autogenerated transformation function for Proj4 projection code xyzgridshift. The full name for this projection is Geocentric grid shift. ## AUTHOR & MAINTAINER Judd Taylor, Orbital Systems, Ltd. judd dot t at orbitalsystems dot com