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/******************************************************************************
* $Id: cs2cs.c 1504 2009-01-06 02:11:57Z warmerdam $
*
* Project: PROJ.4
* Purpose: Mainline program sort of like ``proj'' for converting between
* two coordinate systems.
* Author: Frank Warmerdam, warmerda@home.com
*
******************************************************************************
* Copyright (c) 2000, Frank Warmerdam
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include "projects.h"
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <math.h>
#include "emess.h"
#define MAX_LINE 1000
#define MAX_PARGS 100
static projPJ fromProj, toProj;
static int
reversein = 0, /* != 0 reverse input arguments */
reverseout = 0, /* != 0 reverse output arguments */
echoin = 0, /* echo input data to output line */
tag = '#'; /* beginning of line tag character */
static char
*oform = (char *)0, /* output format for x-y or decimal degrees */
*oterr = "*\t*", /* output line for unprojectable input */
*usage =
"%s\nusage: %s [ -eEfIlrstvwW [args] ] [ +opts[=arg] ]\n"
" [+to [+opts[=arg] [ files ]\n";
static struct FACTORS facs;
static double (*informat)(const char *,
char **); /* input data deformatter function */
/************************************************************************/
/* process() */
/* */
/* File processing function. */
/************************************************************************/
static void process(FILE *fid)
{
char line[MAX_LINE+3], *s, pline[40];
projUV data;
for (;;) {
double z;
++emess_dat.File_line;
if (!(s = fgets(line, MAX_LINE, fid)))
break;
if (!strchr(s, '\n')) { /* overlong line */
int c;
(void)strcat(s, "\n");
/* gobble up to newline */
while ((c = fgetc(fid)) != EOF && c != '\n') ;
}
if (*s == tag) {
fputs(line, stdout);
continue;
}
if (reversein) {
data.v = (*informat)(s, &s);
data.u = (*informat)(s, &s);
} else {
data.u = (*informat)(s, &s);
data.v = (*informat)(s, &s);
}
z = strtod( s, &s );
if (data.v == HUGE_VAL)
data.u = HUGE_VAL;
if (!*s && (s > line)) --s; /* assumed we gobbled \n */
if ( echoin) {
int t;
t = *s;
*s = '\0';
(void)fputs(line, stdout);
*s = t;
putchar('\t');
}
if (data.u != HUGE_VAL) {
if( pj_transform( fromProj, toProj, 1, 0,
&(data.u), &(data.v), &z ) != 0 )
{
data.u = HUGE_VAL;
data.v = HUGE_VAL;
}
}
if (data.u == HUGE_VAL) /* error output */
fputs(oterr, stdout);
else if (pj_is_latlong(toProj) && !oform) { /*ascii DMS output */
if (reverseout) {
fputs(rtodms(pline, data.v, 'N', 'S'), stdout);
putchar('\t');
fputs(rtodms(pline, data.u, 'E', 'W'), stdout);
} else {
fputs(rtodms(pline, data.u, 'E', 'W'), stdout);
putchar('\t');
fputs(rtodms(pline, data.v, 'N', 'S'), stdout);
}
} else { /* x-y or decimal degree ascii output */
if ( pj_is_latlong(toProj) ) {
data.v *= RAD_TO_DEG;
data.u *= RAD_TO_DEG;
}
if (reverseout) {
printf(oform,data.v); putchar('\t');
printf(oform,data.u);
} else {
printf(oform,data.u); putchar('\t');
printf(oform,data.v);
}
}
putchar(' ');
if( oform != NULL )
printf( oform, z );
else
printf( "%.3f", z );
if( s )
printf( "%s", s );
else
printf( "\n" );
}
}
/************************************************************************/
/* main() */
/************************************************************************/
int main(int argc, char **argv)
{
char *arg, **eargv = argv, *from_argv[MAX_PARGS], *to_argv[MAX_PARGS],
**iargv = argv;
FILE *fid;
int from_argc=0, to_argc=0, iargc = argc, eargc = 0, c, mon = 0;
int have_to_flag = 0, inverse = 0, i;
if (emess_dat.Prog_name = strrchr(*argv,DIR_CHAR))
++emess_dat.Prog_name;
else emess_dat.Prog_name = *argv;
inverse = ! strncmp(emess_dat.Prog_name, "inv", 3);
if (argc <= 1 ) {
(void)fprintf(stderr, usage, pj_get_release(), emess_dat.Prog_name);
exit (0);
}
/* process run line arguments */
while (--argc > 0) { /* collect run line arguments */
if(**++argv == '-') for(arg = *argv;;) {
switch(*++arg) {
case '\0': /* position of "stdin" */
if (arg[-1] == '-') eargv[eargc++] = "-";
break;
case 'v': /* monitor dump of initialization */
mon = 1;
continue;
case 'I': /* alt. method to spec inverse */
inverse = 1;
continue;
case 'E': /* echo ascii input to ascii output */
echoin = 1;
continue;
case 't': /* set col. one char */
if (arg[1]) tag = *++arg;
else emess(1,"missing -t col. 1 tag");
continue;
case 'l': /* list projections, ellipses or units */
if (!arg[1] || arg[1] == 'p' || arg[1] == 'P') {
/* list projections */
struct PJ_LIST *lp;
int do_long = arg[1] == 'P', c;
char *str;
for (lp = pj_get_list_ref() ; lp->id ; ++lp) {
(void)printf("%s : ", lp->id);
if (do_long) /* possibly multiline description */
(void)puts(*lp->descr);
else { /* first line, only */
str = *lp->descr;
while ((c = *str++) && c != '\n')
putchar(c);
putchar('\n');
}
}
} else if (arg[1] == '=') { /* list projection 'descr' */
struct PJ_LIST *lp;
arg += 2;
for (lp = pj_get_list_ref() ; lp->id ; ++lp)
if (!strcmp(lp->id, arg)) {
(void)printf("%9s : %s\n", lp->id, *lp->descr);
break;
}
} else if (arg[1] == 'e') { /* list ellipses */
struct PJ_ELLPS *le;
for (le = pj_get_ellps_ref(); le->id ; ++le)
(void)printf("%9s %-16s %-16s %s\n",
le->id, le->major, le->ell, le->name);
} else if (arg[1] == 'u') { /* list units */
struct PJ_UNITS *lu;
for (lu = pj_get_units_ref(); lu->id ; ++lu)
(void)printf("%12s %-20s %s\n",
lu->id, lu->to_meter, lu->name);
} else if (arg[1] == 'd') { /* list datums */
struct PJ_DATUMS *ld;
printf("__datum_id__ __ellipse___ __definition/comments______________________________\n" );
for (ld = pj_get_datums_ref(); ld->id ; ++ld)
{
printf("%12s %-12s %-30s\n",
ld->id, ld->ellipse_id, ld->defn);
if( ld->comments != NULL && strlen(ld->comments) > 0 )
printf( "%25s %s\n", " ", ld->comments );
}
} else if( arg[1] == 'm') { /* list prime meridians */
struct PJ_PRIME_MERIDIANS *lpm;
for (lpm = pj_get_prime_meridians_ref(); lpm->id ; ++lpm)
(void)printf("%12s %-30s\n",
lpm->id, lpm->defn);
} else
emess(1,"invalid list option: l%c",arg[1]);
exit(0);
continue; /* artificial */
case 'e': /* error line alternative */
if (--argc <= 0)
noargument:
emess(1,"missing argument for -%c",*arg);
oterr = *++argv;
continue;
case 'W': /* specify seconds precision */
case 'w': /* -W for constant field width */
if ((c = arg[1]) != 0 && isdigit(c)) {
set_rtodms(c - '0', *arg == 'W');
++arg;
} else
emess(1,"-W argument missing or non-digit");
continue;
case 'f': /* alternate output format degrees or xy */
if (--argc <= 0) goto noargument;
oform = *++argv;
continue;
case 'r': /* reverse input */
reversein = 1;
continue;
case 's': /* reverse output */
reverseout = 1;
continue;
default:
emess(1, "invalid option: -%c",*arg);
break;
}
break;
} else if (strcmp(*argv,"+to") == 0 ) {
have_to_flag = 1;
} else if (**argv == '+') { /* + argument */
if( have_to_flag )
{
if( to_argc < MAX_PARGS )
to_argv[to_argc++] = *argv + 1;
else
emess(1,"overflowed + argument table");
}
else
{
if (from_argc < MAX_PARGS)
from_argv[from_argc++] = *argv + 1;
else
emess(1,"overflowed + argument table");
}
} else /* assumed to be input file name(s) */
eargv[eargc++] = *argv;
}
if (eargc == 0 ) /* if no specific files force sysin */
eargv[eargc++] = "-";
/*
* If the user has requested inverse, then just reverse the
* coordinate systems.
*/
if( inverse )
{
int argcount;
for( i = 0; i < MAX_PARGS; i++ )
{
char *arg;
arg = from_argv[i];
from_argv[i] = to_argv[i];
to_argv[i] = arg;
}
argcount = from_argc;
from_argc = to_argc;
to_argc = argcount;
}
if (!(fromProj = pj_init(from_argc, from_argv)))
{
printf( "Using from definition: " );
for( i = 0; i < from_argc; i++ )
printf( "%s ", from_argv[i] );
printf( "\n" );
emess(3,"projection initialization failure\ncause: %s",
pj_strerrno(pj_errno));
}
if( to_argc == 0 )
{
if (!(toProj = pj_latlong_from_proj( fromProj )))
{
printf( "Using to definition: " );
for( i = 0; i < to_argc; i++ )
printf( "%s ", to_argv[i] );
printf( "\n" );
emess(3,"projection initialization failure\ncause: %s",
pj_strerrno(pj_errno));
}
}
else if (!(toProj = pj_init(to_argc, to_argv)))
{
printf( "Using to definition: " );
for( i = 0; i < to_argc; i++ )
printf( "%s ", to_argv[i] );
printf( "\n" );
emess(3,"projection initialization failure\ncause: %s",
pj_strerrno(pj_errno));
}
if (mon) {
printf( "%c ---- From Coordinate System ----\n", tag );
pj_pr_list(fromProj);
printf( "%c ---- To Coordinate System ----\n", tag );
pj_pr_list(toProj);
}
/* set input formating control */
if( !fromProj->is_latlong )
informat = strtod;
else {
informat = dmstor;
}
if( !toProj->is_latlong && !oform )
oform = "%.2f";
/* process input file list */
for ( ; eargc-- ; ++eargv) {
if (**eargv == '-') {
fid = stdin;
emess_dat.File_name = "<stdin>";
} else {
if ((fid = fopen(*eargv, "rt")) == NULL) {
emess(-2, *eargv, "input file");
continue;
}
emess_dat.File_name = *eargv;
}
emess_dat.File_line = 0;
process(fid);
fclose(fid);
emess_dat.File_name = 0;
}
if( fromProj != NULL )
pj_free( fromProj );
if( toProj != NULL )
pj_free( toProj );
pj_deallocate_grids();
exit(0); /* normal completion */
}
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