NAME¶
MAPTRI - Performs inverse transformations.
SYNOPSIS¶
CALL MAPTRI (UVAL,VVAL,RLAT,RLON)
C-BINDING SYNOPSIS¶
#include <ncarg/ncargC.h>
void c_maptri (float uval, float vval, float *rlat,
float *rlon)
DESCRIPTION¶
- UVAL and VVAL
- (input expressions, of type REAL) define the point (UVAL,VVAL) that is the
projection in the u/v plane of the point whose latitude and longitude are
desired. The units of UVAL and VVAL depend on the projection.
- RLAT and RLON
- (output variables, of type REAL) are the latitude and longitude,
respectively, of the point, in degrees. RLAT will be between -90. and
+90., inclusive; RLON will be between -180. and +180., inclusive.
If the point (UVAL,VVAL) is not the projection of some point of the globe or
is outside the boundary of the map, RLAT and RLON are returned equal to
1.E12.
C-BINDING DESCRIPTION¶
The C-binding argument descriptions are the same as the FORTRAN argument
descriptions.
EXAMPLES¶
Use the ncargex command to see the following relevant examples: ccpmpxy, mpex10.
ACCESS¶
To use MAPTRI or c_maptri, load the NCAR Graphics libraries ncarg, ncarg_gks,
and ncarg_c, preferably in that order.
SEE ALSO¶
Online: ezmap, ezmap_params, mapaci, mapbla, mapblm, mapdrw, mapeod, mapfst,
mapgci, mapgrd, mapgrm, mapgtc, mapgti, mapgtl, mapgtr, mapint, mapiq, mapiqa,
mapiqd, mapiqm, mapit, mapita, mapitd, mapitm, maplbl, maplmb, maplot, mappos,
maproj, maprs, maprst, mapsav, mapset, mapstc, mapsti, mapstl, mapstr, maptra,
maptrn, mapusr, mapvec, mpchln, mpfnme, mpgetc, mpgeti, mpgetl, mpgetr,
mpglty, mpiaty, mpifnb, mpilnb, mpiola, mpiosa, mpipai, mpipan, mpipar,
mpisci, mplnam, mplndm, mplndr, mplnri, mpname, mprset, mpsetc, mpseti,
mpsetl, mpsetr, supmap, supcon, ncarg_cbind
Hardcopy: NCAR Graphics Contouring and Mapping Tutorial
COPYRIGHT¶
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.
