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;
use PDL::Graphics::Simple;
$e = earth_image('day');
($c, $pen) = graticule(10,2)->glue(1,earth_coast())->clean_lines;
$t = t_proj(proj_params => "+proj=ortho +ellps=WGS84 +lon_0=0 +lat_0=40");
$w = pgswin();
$w->plot(with=>'fits', $e->map($t),
with=>'polylines', clean_lines($c->apply($t), $pen), {j=>1});
# Using the aliased functions:
# Make an orthographic map of Earth
use PDL::Transform::Cartography;
use PDL::Transform::Proj4;
use PDL::Graphics::Simple;
$e = earth_image('day');
($c, $pen) = graticule(10,2)->glue(1,earth_coast())->clean_lines;
$t = t_proj_ortho( ellps => 'WGS84', lon_0=>0, lat_0=>40 );
$w = pgswin();
$w->plot(with=>'fits', $e->map($t),
with=>'polylines', clean_lines($c->apply($t), $pen), {j=>1});DESCRIPTION
Works like PDL::Transform::Cartography, but using the proj library in the background.
Please see the proj library docs at http://www.remotesensing.org/proj 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.
Please note that unlike PROJ, all angles in these operations are in degrees. This is correctly (as of PDL 2.094) reflected in the PDL::Transform subclass objects.
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)/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
proj_version
Returns a 3-element list with PROJ major, minor, patch version-numbers. Not exported.
FUNCTIONS
t_proj
This is the main entry point for the generalized interface. See above on its usage.
t_proj_adams_hemi
Proj4 projection code adams_hemi, full name "Adams Hemisphere in a Square".
Categories: no inverse Misc Sph.
t_proj_adams_ws1
Proj4 projection code adams_ws1, full name "Adams World in a Square I".
Categories: no inverse Misc Sph.
t_proj_adams_ws2
Proj4 projection code adams_ws2, full name "Adams World in a Square II".
Categories: no inverse Misc Sph.
t_proj_aea
Proj4 projection code aea, full name "Albers Equal Area".
Categories: Conic Sph Ell.
Projection Parameters
- lat_1
- lat_2
t_proj_aeqd
Proj4 projection code aeqd, full name "Azimuthal Equidistant".
Categories: Azi Sph Ell.
Projection Parameters
- guam
- lat_0
t_proj_affine
Proj4 projection code affine, full name "Affine transformation".
t_proj_airy
Proj4 projection code airy, full name "Airy".
Categories: no inverse Misc Sph.
Projection Parameters
- lat_b
- no_cut
t_proj_aitoff
Proj4 projection code aitoff, full name "Aitoff".
Categories: Misc Sph.
t_proj_alsk
Proj4 projection code alsk, full name "Modified Stereographic of Alaska".
Categories: Azi(mod).
t_proj_apian
Proj4 projection code apian, full name "Apian Globular I".
Categories: no inverse Misc Sph.
t_proj_august
Proj4 projection code august, full name "August Epicycloidal".
Categories: no inverse Misc Sph.
t_proj_axisswap
Proj4 projection code axisswap, full name "Axis ordering".
t_proj_bacon
Proj4 projection code bacon, full name "Bacon Globular".
Categories: no inverse Misc Sph.
t_proj_bertin1953
Proj4 projection code bertin1953, full name "Bertin 1953".
Categories: no inverse Misc Sph.
t_proj_bipc
Proj4 projection code bipc, full name "Bipolar conic of western hemisphere".
Categories: Conic Sph.
t_proj_boggs
Proj4 projection code boggs, full name "Boggs Eumorphic".
Categories: no inverse PCyl Sph.
t_proj_bonne
Proj4 projection code bonne, full name "Bonne (Werner lat_1=90)".
Categories: Conic Sph Ell.
Projection Parameters
- lat_1
t_proj_calcofi
Proj4 projection code calcofi, full name "Cal Coop Ocean Fish Invest Lines/Stations".
Categories: Cyl Sph Ell.
t_proj_cart
Proj4 projection code cart, full name "Geodetic/cartesian conversions".
t_proj_cass
Proj4 projection code cass, full name "Cassini".
Categories: Cyl Sph Ell.
t_proj_cc
Proj4 projection code cc, full name "Central Cylindrical".
Categories: Cyl Sph.
t_proj_ccon
Proj4 projection code ccon, full name "Central Conic".
Categories: Central Conic Sph.
Projection Parameters
- lat_1
t_proj_cea
Proj4 projection code cea, full name "Equal Area Cylindrical".
Categories: Cyl Sph Ell.
Projection Parameters
- lat_ts
t_proj_chamb
Proj4 projection code chamb, full name "Chamberlin Trimetric".
Categories: no inverse Misc Sph.
Projection Parameters
- lat_1
- lat_2
- lat_3
- lon_1
- lon_2
- lon_3
t_proj_col_urban
Proj4 projection code col_urban, full name "Colombia Urban".
Categories: Misc.
Projection Parameters
- h_0
t_proj_collg
Proj4 projection code collg, full name "Collignon".
Categories: PCyl Sph.
t_proj_comill
Proj4 projection code comill, full name "Compact Miller".
Categories: Cyl Sph.
t_proj_crast
Proj4 projection code crast, full name "Craster Parabolic (Putnins P4)".
Categories: PCyl Sph.
t_proj_defmodel
Proj4 projection code defmodel, full name "Deformation model".
t_proj_deformation
Proj4 projection code deformation, full name "Kinematic grid shift".
t_proj_denoy
Proj4 projection code denoy, full name "Denoyer Semi-Elliptical".
Categories: no inverse PCyl Sph.
t_proj_eck1
Proj4 projection code eck1, full name "Eckert I".
Categories: PCyl Sph.
t_proj_eck2
Proj4 projection code eck2, full name "Eckert II".
Categories: PCyl Sph.
t_proj_eck3
Proj4 projection code eck3, full name "Eckert III".
Categories: PCyl Sph.
t_proj_eck4
Proj4 projection code eck4, full name "Eckert IV".
Categories: PCyl Sph.
t_proj_eck5
Proj4 projection code eck5, full name "Eckert V".
Categories: PCyl Sph.
t_proj_eck6
Proj4 projection code eck6, full name "Eckert VI".
Categories: PCyl Sph.
t_proj_eqc
Proj4 projection code eqc, full name "Equidistant Cylindrical (Plate Carree)".
Categories: Cyl Sph.
Projection Parameters
- lat_00
- lat_ts
t_proj_eqdc
Proj4 projection code eqdc, full name "Equidistant Conic".
Categories: Conic Sph Ell.
Projection Parameters
- lat_1
- lat_2
t_proj_eqearth
Proj4 projection code eqearth, full name "Equal Earth".
Categories: PCyl Sph Ell.
t_proj_etmerc
Proj4 projection code etmerc, full name "Extended Transverse Mercator".
Categories: Cyl Sph.
t_proj_euler
Proj4 projection code euler, full name "Euler".
Categories: Conic Sph.
Projection Parameters
- lat_1
- lat_2
t_proj_fahey
Proj4 projection code fahey, full name "Fahey".
Categories: Pcyl Sph.
t_proj_fouc
Proj4 projection code fouc, full name "Foucaut".
Categories: PCyl Sph.
t_proj_fouc_s
Proj4 projection code fouc_s, full name "Foucaut Sinusoidal".
Categories: PCyl Sph.
t_proj_gall
Proj4 projection code gall, full name "Gall (Gall Stereographic)".
Categories: Cyl Sph.
t_proj_geoc
Proj4 projection code geoc, full name "Geocentric Latitude".
t_proj_geogoffset
Proj4 projection code geogoffset, full name "Geographic Offset".
t_proj_geos
Proj4 projection code geos, full name "Geostationary Satellite View".
Categories: Azi Sph Ell.
Projection Parameters
- h
t_proj_gins8
Proj4 projection code gins8, full name "Ginsburg VIII (TsNIIGAiK)".
Categories: no inverse PCyl Sph.
t_proj_gn_sinu
Proj4 projection code gn_sinu, full name "General Sinusoidal Series".
Categories: PCyl Sph.
Projection Parameters
- m
- n
t_proj_gnom
Proj4 projection code gnom, full name "Gnomonic".
Categories: Azi Sph.
t_proj_goode
Proj4 projection code goode, full name "Goode Homolosine".
Categories: PCyl Sph.
t_proj_gridshift
Proj4 projection code gridshift, full name "Generic grid shift".
t_proj_gs48
Proj4 projection code gs48, full name "Modified Stereographic of 48 U.S.".
Categories: Azi(mod).
t_proj_gs50
Proj4 projection code gs50, full name "Modified Stereographic of 50 U.S.".
Categories: Azi(mod).
t_proj_gstmerc
Proj4 projection code gstmerc, full name "Gauss-Schreiber Transverse Mercator (aka Gauss-Laborde Reunion)".
Categories: Cyl Sph Ell.
Projection Parameters
- k_0
- lat_0
- lon_0
t_proj_guyou
Proj4 projection code guyou, full name "Guyou".
Categories: no inverse Misc Sph.
t_proj_hammer
Proj4 projection code hammer, full name "Hammer & Eckert-Greifendorff".
Categories: Misc Sph.
Projection Parameters
- M
- W
t_proj_hatano
Proj4 projection code hatano, full name "Hatano Asymmetrical Equal Area".
Categories: PCyl Sph.
t_proj_healpix
Proj4 projection code healpix, full name "HEALPix".
Categories: Sph Ell.
Projection Parameters
- rot_xy
t_proj_helmert
Proj4 projection code helmert, full name "3(6)-, 4(8)- and 7(14)-parameter Helmert shift".
t_proj_hgridshift
Proj4 projection code hgridshift, full name "Horizontal grid shift".
t_proj_horner
Proj4 projection code horner, full name "Horner polynomial evaluation".
t_proj_igh
Proj4 projection code igh, full name "Interrupted Goode Homolosine".
Categories: PCyl Sph.
t_proj_igh_o
Proj4 projection code igh_o, full name "Interrupted Goode Homolosine Oceanic View".
Categories: PCyl Sph.
t_proj_imoll
Proj4 projection code imoll, full name "Interrupted Mollweide".
Categories: PCyl Sph.
t_proj_imoll_o
Proj4 projection code imoll_o, full name "Interrupted Mollweide Oceanic View".
Categories: PCyl Sph.
t_proj_imw_p
Proj4 projection code imw_p, full name "International Map of the World Polyconic".
Categories: Mod. Polyconic Ell.
Projection Parameters
- lat_1
- lat_2
- lon_1
t_proj_isea
Proj4 projection code isea, full name "Icosahedral Snyder Equal Area".
Categories: Sph.
t_proj_kav5
Proj4 projection code kav5, full name "Kavrayskiy V".
Categories: PCyl Sph.
t_proj_kav7
Proj4 projection code kav7, full name "Kavrayskiy VII".
Categories: PCyl Sph.
t_proj_krovak
Proj4 projection code krovak, full name "Krovak".
Categories: PCyl Ell.
t_proj_labrd
Proj4 projection code labrd, full name "Laborde".
Categories: Cyl Sph.
Projection Parameters
- lat_0
t_proj_laea
Proj4 projection code laea, full name "Lambert Azimuthal Equal Area".
Categories: Azi Sph Ell.
t_proj_lagrng
Proj4 projection code lagrng, full name "Lagrange".
Categories: Misc Sph.
Projection Parameters
- W
t_proj_larr
Proj4 projection code larr, full name "Larrivee".
Categories: no inverse Misc Sph.
t_proj_lask
Proj4 projection code lask, full name "Laskowski".
Categories: no inverse Misc Sph.
t_proj_latlon
Proj4 projection code latlon, full name "Lat/long (Geodetic alias)".
t_proj_lcc
Proj4 projection code lcc, full name "Lambert Conformal Conic".
Categories: Conic Sph Ell.
Projection Parameters
- k_0
- lat_0
- lat_1
- lat_2
t_proj_lcca
Proj4 projection code lcca, full name "Lambert Conformal Conic Alternative".
Categories: Conic Sph Ell.
Projection Parameters
- lat_0
t_proj_leac
Proj4 projection code leac, full name "Lambert Equal Area Conic".
Categories: Conic Sph Ell.
Projection Parameters
- lat_1
- south
t_proj_lee_os
Proj4 projection code lee_os, full name "Lee Oblated Stereographic".
Categories: Azi(mod).
t_proj_lonlat
Proj4 projection code lonlat, full name "Lat/long (Geodetic)".
t_proj_loxim
Proj4 projection code loxim, full name "Loximuthal".
Categories: PCyl Sph.
t_proj_lsat
Proj4 projection code lsat, full name "Space oblique for LANDSAT".
Categories: Cyl Sph Ell.
Projection Parameters
- lsat
- path
t_proj_mbt_fps
Proj4 projection code mbt_fps, full name "McBryde-Thomas Flat-Pole Sine (No. 2)".
Categories: Cyl Sph.
t_proj_mbt_s
Proj4 projection code mbt_s, full name "McBryde-Thomas Flat-Polar Sine (No. 1)".
Categories: PCyl Sph.
t_proj_mbtfpp
Proj4 projection code mbtfpp, full name "McBride-Thomas Flat-Polar Parabolic".
Categories: Cyl Sph.
t_proj_mbtfpq
Proj4 projection code mbtfpq, full name "McBryde-Thomas Flat-Polar Quartic".
Categories: Cyl Sph.
t_proj_mbtfps
Proj4 projection code mbtfps, full name "McBryde-Thomas Flat-Polar Sinusoidal".
Categories: PCyl Sph.
t_proj_merc
Proj4 projection code merc, full name "Mercator".
Categories: Cyl Sph Ell.
Projection Parameters
- lat_ts
t_proj_mil_os
Proj4 projection code mil_os, full name "Miller Oblated Stereographic".
Categories: Azi(mod).
t_proj_mill
Proj4 projection code mill, full name "Miller Cylindrical".
Categories: Cyl Sph.
t_proj_misrsom
Proj4 projection code misrsom, full name "Space oblique for MISR".
Categories: Cyl Sph Ell.
Projection Parameters
- path
t_proj_mod_krovak
Proj4 projection code mod_krovak, full name "Modified Krovak".
Categories: PCyl Ell.
t_proj_moll
Proj4 projection code moll, full name "Mollweide".
Categories: PCyl Sph.
t_proj_molobadekas
Proj4 projection code molobadekas, full name "Molodensky-Badekas transformation".
t_proj_molodensky
Proj4 projection code molodensky, full name "Molodensky transform".
t_proj_murd1
Proj4 projection code murd1, full name "Murdoch I".
Categories: Conic Sph.
Projection Parameters
- lat_1
- lat_2
t_proj_murd2
Proj4 projection code murd2, full name "Murdoch II".
Categories: Conic Sph.
Projection Parameters
- lat_1
- lat_2
t_proj_murd3
Proj4 projection code murd3, full name "Murdoch III".
Categories: Conic Sph.
Projection Parameters
- lat_1
- lat_2
t_proj_natearth
Proj4 projection code natearth, full name "Natural Earth".
Categories: PCyl Sph.
t_proj_natearth2
Proj4 projection code natearth2, full name "Natural Earth 2".
Categories: PCyl Sph.
t_proj_nell
Proj4 projection code nell, full name "Nell".
Categories: PCyl Sph.
t_proj_nell_h
Proj4 projection code nell_h, full name "Nell-Hammer".
Categories: PCyl Sph.
t_proj_nicol
Proj4 projection code nicol, full name "Nicolosi Globular".
Categories: no inverse Misc Sph.
t_proj_noop
Proj4 projection code noop, full name "No operation".
t_proj_nsper
Proj4 projection code nsper, full name "Near-sided perspective".
Categories: Azi Sph.
Projection Parameters
- h
t_proj_nzmg
Proj4 projection code nzmg, full name "New Zealand Map Grid".
Categories: fixed Earth.
t_proj_ob_tran
Proj4 projection code ob_tran, full name "General Oblique Transformation".
Categories: Misc Sph.
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
Proj4 projection code ocea, full name "Oblique Cylindrical Equal Area".
Categories: Cyl Sphlonc= alpha=.
Projection Parameters
- lat_1
- lat_2
- lon_1
- lon_2
t_proj_oea
Proj4 projection code oea, full name "Oblated Equal Area".
Categories: Misc Sph.
Projection Parameters
- m
- n
- theta
t_proj_omerc
Proj4 projection code omerc, full name "Oblique Mercator".
Categories: Cyl Sph Ell no_rot.
Projection Parameters
- alpha
- gamma
- lat_1
- lat_2
- lon_1
- lon_2
- lonc
- no_off
t_proj_ortel
Proj4 projection code ortel, full name "Ortelius Oval".
Categories: no inverse Misc Sph.
t_proj_ortho
Proj4 projection code ortho, full name "Orthographic".
Categories: Azi Sph Ell.
t_proj_patterson
Proj4 projection code patterson, full name "Patterson Cylindrical".
Categories: Cyl.
t_proj_pconic
Proj4 projection code pconic, full name "Perspective Conic".
Categories: Conic Sph.
Projection Parameters
- lat_1
- lat_2
t_proj_peirce_q
Proj4 projection code peirce_q, full name "Peirce Quincuncial".
Categories: no inverse Misc Sph.
t_proj_pipeline
Proj4 projection code pipeline, full name "Transformation pipeline manager".
t_proj_poly
Proj4 projection code poly, full name "Polyconic (American)".
Categories: Conic Sph Ell.
t_proj_pop
Proj4 projection code pop, full name "Retrieve coordinate value from pipeline stack".
t_proj_push
Proj4 projection code push, full name "Save coordinate value on pipeline stack".
t_proj_putp1
Proj4 projection code putp1, full name "Putnins P1".
Categories: PCyl Sph.
t_proj_putp2
Proj4 projection code putp2, full name "Putnins P2".
Categories: PCyl Sph.
t_proj_putp3
Proj4 projection code putp3, full name "Putnins P3".
Categories: PCyl Sph.
t_proj_putp3p
Proj4 projection code putp3p, full name "Putnins P3'".
Categories: PCyl Sph.
t_proj_putp4p
Proj4 projection code putp4p, full name "Putnins P4'".
Categories: PCyl Sph.
t_proj_putp5
Proj4 projection code putp5, full name "Putnins P5".
Categories: PCyl Sph.
t_proj_putp5p
Proj4 projection code putp5p, full name "Putnins P5'".
Categories: PCyl Sph.
t_proj_putp6
Proj4 projection code putp6, full name "Putnins P6".
Categories: PCyl Sph.
t_proj_putp6p
Proj4 projection code putp6p, full name "Putnins P6'".
Categories: PCyl Sph.
t_proj_qsc
Proj4 projection code qsc, full name "Quadrilateralized Spherical Cube".
Categories: Azi Sph.
t_proj_qua_aut
Proj4 projection code qua_aut, full name "Quartic Authalic".
Categories: PCyl Sph.
t_proj_rhealpix
Proj4 projection code rhealpix, full name "rHEALPix".
Categories: Sph Ell.
Projection Parameters
- north_square
- south_square
t_proj_robin
Proj4 projection code robin, full name "Robinson".
Categories: PCyl Sph.
t_proj_rouss
Proj4 projection code rouss, full name "Roussilhe Stereographic".
Categories: Azi Ell.
t_proj_rpoly
Proj4 projection code rpoly, full name "Rectangular Polyconic".
Categories: no inverse Conic Sph.
Projection Parameters
- lat_ts
t_proj_s2
Proj4 projection code s2, full name "S2".
Categories: Misc Sph Ell.
t_proj_sch
Proj4 projection code sch, full name "Spherical Cross-track Height".
Categories: Misc.
Projection Parameters
- h_0
- phdg_0
- plat_0
- plon_0
t_proj_set
Proj4 projection code set, full name "Set coordinate value".
t_proj_sinu
Proj4 projection code sinu, full name "Sinusoidal (Sanson-Flamsteed)".
Categories: PCyl Sph Ell.
t_proj_som
Proj4 projection code som, full name "Space Oblique Mercator".
Categories: Cyl Sph Ell.
Projection Parameters
- asc_lon
- inc_angle
- ps_rev
t_proj_somerc
Proj4 projection code somerc, full name "Swiss. Obl. Mercator".
Categories: Cyl Ell.
t_proj_stere
Proj4 projection code stere, full name "Stereographic".
Categories: Azi Sph Ell.
Projection Parameters
- lat_ts
t_proj_sterea
Proj4 projection code sterea, full name "Oblique Stereographic Alternative".
Categories: Azimuthal Sph Ell.
t_proj_tcc
Proj4 projection code tcc, full name "Transverse Central Cylindrical".
Categories: no inverse Cyl Sph.
t_proj_tcea
Proj4 projection code tcea, full name "Transverse Cylindrical Equal Area".
Categories: Cyl Sph.
t_proj_times
Proj4 projection code times, full name "Times".
Categories: Cyl Sph.
t_proj_tinshift
Proj4 projection code tinshift, full name "Triangulation based transformation".
t_proj_tissot
Proj4 projection code tissot, full name "Tissot".
Categories: Conic Sph.
Projection Parameters
- lat_1
- lat_2
t_proj_tmerc
Proj4 projection code tmerc, full name "Transverse Mercator".
Categories: Cyl Sph Ell.
Projection Parameters
- approx
t_proj_tobmerc
Proj4 projection code tobmerc, full name "Tobler-Mercator".
Categories: Cyl Sph.
t_proj_topocentric
Proj4 projection code topocentric, full name "Geocentric/Topocentric conversion".
t_proj_tpeqd
Proj4 projection code tpeqd, full name "Two Point Equidistant".
Categories: Misc Sph.
Projection Parameters
- lat_1
- lat_2
- lon_1
- lon_2
t_proj_tpers
Proj4 projection code tpers, full name "Tilted perspective".
Categories: Azi Sph.
Projection Parameters
- azi
- h
- tilt
t_proj_unitconvert
Proj4 projection code unitconvert, full name "Unit conversion".
t_proj_ups
Proj4 projection code ups, full name "Universal Polar Stereographic".
Categories: Azi Ell.
Projection Parameters
- south
t_proj_urm5
Proj4 projection code urm5, full name "Urmaev V".
Categories: no inverse PCyl Sph.
Projection Parameters
- alpha
- n
- q
t_proj_urmfps
Proj4 projection code urmfps, full name "Urmaev Flat-Polar Sinusoidal".
Categories: PCyl Sph.
Projection Parameters
- n
t_proj_utm
Proj4 projection code utm, full name "Universal Transverse Mercator (UTM)".
Categories: Cyl Ell.
Projection Parameters
- approx
- south
- zone
t_proj_vandg
Proj4 projection code vandg, full name "van der Grinten (I)".
Categories: Misc Sph.
t_proj_vandg2
Proj4 projection code vandg2, full name "van der Grinten II".
Categories: no inverse Misc Sph.
t_proj_vandg3
Proj4 projection code vandg3, full name "van der Grinten III".
Categories: no inverse Misc Sph.
t_proj_vandg4
Proj4 projection code vandg4, full name "van der Grinten IV".
Categories: no inverse Misc Sph.
t_proj_vertoffset
Proj4 projection code vertoffset, full name "Vertical Offset and Slope".
Categories: Transfmation.
Projection Parameters
- dh
- lat_0
- lon_0
- slope_lat
- slope_lon
t_proj_vgridshift
Proj4 projection code vgridshift, full name "Vertical grid shift".
t_proj_vitk1
Proj4 projection code vitk1, full name "Vitkovsky I".
Categories: Conic Sph.
Projection Parameters
- lat_1
- lat_2
t_proj_wag1
Proj4 projection code wag1, full name "Wagner I (Kavrayskiy VI)".
Categories: PCyl Sph.
t_proj_wag2
Proj4 projection code wag2, full name "Wagner II".
Categories: PCyl Sph.
t_proj_wag3
Proj4 projection code wag3, full name "Wagner III".
Categories: PCyl Sph.
Projection Parameters
- lat_ts
t_proj_wag4
Proj4 projection code wag4, full name "Wagner IV".
Categories: PCyl Sph.
t_proj_wag5
Proj4 projection code wag5, full name "Wagner V".
Categories: PCyl Sph.
t_proj_wag6
Proj4 projection code wag6, full name "Wagner VI".
Categories: PCyl Sph.
t_proj_wag7
Proj4 projection code wag7, full name "Wagner VII".
Categories: no inverse Misc Sph.
t_proj_webmerc
Proj4 projection code webmerc, full name "Web Mercator / Pseudo Mercator".
Categories: Cyl Ell.
t_proj_weren
Proj4 projection code weren, full name "Werenskiold I".
Categories: PCyl Sph.
t_proj_wink1
Proj4 projection code wink1, full name "Winkel I".
Categories: PCyl Sph.
Projection Parameters
- lat_ts
t_proj_wink2
Proj4 projection code wink2, full name "Winkel II".
Categories: PCyl Sph.
Projection Parameters
- lat_1
t_proj_wintri
Proj4 projection code wintri, full name "Winkel Tripel".
Categories: Misc Sph.
Projection Parameters
- lat_1
t_proj_xyzgridshift
Proj4 projection code xyzgridshift, full name "Geocentric grid shift".
AUTHOR
Judd Taylor, Orbital Systems, Ltd. judd dot t at orbitalsystems dot com