obs_data_t *obs_encoder_defaults(const char *id)
{
const struct obs_encoder_info *info = find_encoder(id);
return (info) ? get_defaults(info) : NULL;
}
PJ *
pj_init(int argc, char **argv) {
char *s, *name;
paralist *start = NULL;
PJ *(*proj)(PJ *);
paralist *curr;
int i;
PJ *PIN = 0;
errno = pj_errno = 0;
start = NULL;
/* put arguments into internal linked list */
if (argc <= 0) { pj_errno = -1; goto bum_call; }
for (i = 0; i < argc; ++i)
if (i)
curr = curr->next = pj_mkparam(argv[i]);
else
start = curr = pj_mkparam(argv[i]);
if (pj_errno) goto bum_call;
/* check if +init present */
if (pj_param(start, "tinit").i) {
paralist *last = curr;
if (!(curr = get_init(&start, curr, pj_param(start, "sinit").s)))
goto bum_call;
if (curr == last) { pj_errno = -2; goto bum_call; }
}
/* find projection selection */
if (!(name = pj_param(start, "sproj").s))
{ pj_errno = -4; goto bum_call; }
for (i = 0; (s = pj_list[i].id) && strcmp(name, s) ; ++i) ;
if (!s) { pj_errno = -5; goto bum_call; }
/* set defaults, unless inhibited */
if (!pj_param(start, "bno_defs").i)
curr = get_defaults(&start, curr, name);
proj = (PJ *(*)(PJ *)) pj_list[i].proj;
/* allocate projection structure */
if (!(PIN = (*proj)(0))) goto bum_call;
PIN->params = start;
PIN->is_latlong = 0;
PIN->is_geocent = 0;
PIN->long_wrap_center = 0.0;
/* set datum parameters */
if (pj_datum_set(start, PIN)) goto bum_call;
/* set ellipsoid/sphere parameters */
if (pj_ell_set(start, &PIN->a, &PIN->es)) goto bum_call;
PIN->e = sqrt(PIN->es);
PIN->ra = 1. / PIN->a;
PIN->one_es = 1. - PIN->es;
if (PIN->one_es == 0.) { pj_errno = -6; goto bum_call; }
PIN->rone_es = 1./PIN->one_es;
/* Now that we have ellipse information check for WGS84 datum */
if( PIN->datum_type == PJD_3PARAM
&& PIN->datum_params[0] == 0.0
&& PIN->datum_params[1] == 0.0
&& PIN->datum_params[2] == 0.0
&& PIN->a == 6378137.0
&& ABS(PIN->es - 0.006694379990) < 0.000000000050 )/*WGS84/GRS80*/
{
PIN->datum_type = PJD_WGS84;
}
/* set PIN->geoc coordinate system */
PIN->geoc = (PIN->es && pj_param(start, "bgeoc").i);
/* over-ranging flag */
PIN->over = pj_param(start, "bover").i;
/* longitude center for wrapping */
PIN->long_wrap_center = pj_param(start, "rlon_wrap").f;
/* central meridian */
PIN->lam0=pj_param(start, "rlon_0").f;
/* central latitude */
PIN->phi0 = pj_param(start, "rlat_0").f;
/* false easting and northing */
PIN->x0 = pj_param(start, "dx_0").f;
PIN->y0 = pj_param(start, "dy_0").f;
/* general scaling factor */
if (pj_param(start, "tk_0").i)
PIN->k0 = pj_param(start, "dk_0").f;
else if (pj_param(start, "tk").i)
PIN->k0 = pj_param(start, "dk").f;
else
PIN->k0 = 1.;
if (PIN->k0 <= 0.) {
pj_errno = -31;
goto bum_call;
}
/* set units */
s = 0;
if (name = pj_param(start, "sunits").s) {
for (i = 0; (s = pj_units[i].id) && strcmp(name, s) ; ++i) ;
if (!s) { pj_errno = -7; goto bum_call; }
s = pj_units[i].to_meter;
}
if (s || (s = pj_param(start, "sto_meter").s)) {
PIN->to_meter = strtod(s, &s);
if (*s == '/') /* ratio number */
PIN->to_meter /= strtod(++s, 0);
PIN->fr_meter = 1. / PIN->to_meter;
} else
PIN->to_meter = PIN->fr_meter = 1.;
/* prime meridian */
s = 0;
if (name = pj_param(start, "spm").s) {
const char *value = NULL;
char *next_str = NULL;
for (i = 0; pj_prime_meridians[i].id != NULL; ++i )
{
if( strcmp(name,pj_prime_meridians[i].id) == 0 )
{
value = pj_prime_meridians[i].defn;
break;
}
}
if( value == NULL
&& (dmstor(name,&next_str) != 0.0 || *name == '0')
&& *next_str == '\0' )
value = name;
if (!value) { pj_errno = -46; goto bum_call; }
PIN->from_greenwich = dmstor(value,NULL);
}
else
PIN->from_greenwich = 0.0;
/* projection specific initialization */
if (!(PIN = (*proj)(PIN)) || errno || pj_errno) {
bum_call: /* cleanup error return */
if (!pj_errno)
pj_errno = errno;
if (PIN)
pj_free(PIN);
else
for ( ; start; start = curr) {
curr = start->next;
pj_dalloc(start);
}
PIN = 0;
}
return PIN;
}
obs_data_t *obs_service_defaults(const char *id)
{
const struct obs_service_info *info = find_service(id);
return (info) ? get_defaults(info) : NULL;
}
obs_data_t obs_output_defaults(const char *id)
{
const struct obs_output_info *info = find_output(id);
return (info) ? get_defaults(info) : NULL;
}
PJ *
pj_init_ctx(projCtx ctx, int argc, char **argv) {
char *s, *name;
paralist *start = NULL;
PJ *(*proj)(PJ *);
paralist *curr;
int i;
PJ *PIN = 0;
char *old_locale;
ctx->last_errno = 0;
start = NULL;
old_locale = strdup(setlocale(LC_NUMERIC, NULL));
if( strcmp(old_locale,"C") != 0 )
setlocale(LC_NUMERIC,"C");
/* put arguments into internal linked list */
if (argc <= 0) { pj_ctx_set_errno( ctx, -1 ); goto bum_call; }
for (i = 0; i < argc; ++i)
if (i)
curr = curr->next = pj_mkparam(argv[i]);
else
start = curr = pj_mkparam(argv[i]);
if (ctx->last_errno) goto bum_call;
/* check if +init present */
if (pj_param(ctx, start, "tinit").i) {
paralist *last = curr;
if (!(curr = get_init(ctx,&start, curr, pj_param(ctx, start, "sinit").s)))
goto bum_call;
if (curr == last) { pj_ctx_set_errno( ctx, -2); goto bum_call; }
}
/* find projection selection */
if (!(name = pj_param(ctx, start, "sproj").s))
{ pj_ctx_set_errno( ctx, -4 ); goto bum_call; }
for (i = 0; (s = pj_list[i].id) && strcmp(name, s) ; ++i) ;
if (!s) { pj_ctx_set_errno( ctx, -5 ); goto bum_call; }
/* set defaults, unless inhibited */
if (!pj_param(ctx, start, "bno_defs").i)
curr = get_defaults(ctx,&start, curr, name);
proj = (PJ *(*)(PJ *)) pj_list[i].proj;
/* allocate projection structure */
if (!(PIN = (*proj)(0))) goto bum_call;
PIN->ctx = ctx;
PIN->params = start;
PIN->is_latlong = 0;
PIN->is_geocent = 0;
PIN->is_long_wrap_set = 0;
PIN->long_wrap_center = 0.0;
strcpy( PIN->axis, "enu" );
PIN->gridlist = NULL;
PIN->gridlist_count = 0;
PIN->vgridlist_geoid = NULL;
PIN->vgridlist_geoid_count = 0;
/* set datum parameters */
if (pj_datum_set(ctx, start, PIN)) goto bum_call;
/* set ellipsoid/sphere parameters */
if (pj_ell_set(ctx, start, &PIN->a, &PIN->es)) goto bum_call;
PIN->a_orig = PIN->a;
PIN->es_orig = PIN->es;
PIN->e = sqrt(PIN->es);
PIN->ra = 1. / PIN->a;
PIN->one_es = 1. - PIN->es;
if (PIN->one_es == 0.) { pj_ctx_set_errno( ctx, -6 ); goto bum_call; }
PIN->rone_es = 1./PIN->one_es;
/* Now that we have ellipse information check for WGS84 datum */
if( PIN->datum_type == PJD_3PARAM
&& PIN->datum_params[0] == 0.0
&& PIN->datum_params[1] == 0.0
&& PIN->datum_params[2] == 0.0
&& PIN->a == 6378137.0
&& ABS(PIN->es - 0.006694379990) < 0.000000000050 )/*WGS84/GRS80*/
{
PIN->datum_type = PJD_WGS84;
}
/* set PIN->geoc coordinate system */
PIN->geoc = (PIN->es && pj_param(ctx, start, "bgeoc").i);
/* over-ranging flag */
PIN->over = pj_param(ctx, start, "bover").i;
/* vertical datum geoid grids */
PIN->has_geoid_vgrids = pj_param(ctx, start, "tgeoidgrids").i;
if( PIN->has_geoid_vgrids ) /* we need to mark it as used. */
pj_param(ctx, start, "sgeoidgrids");
/* longitude center for wrapping */
PIN->is_long_wrap_set = pj_param(ctx, start, "tlon_wrap").i;
if (PIN->is_long_wrap_set)
PIN->long_wrap_center = pj_param(ctx, start, "rlon_wrap").f;
/* axis orientation */
if( (pj_param(ctx, start,"saxis").s) != NULL )
{
static const char *axis_legal = "ewnsud";
const char *axis_arg = pj_param(ctx, start,"saxis").s;
if( strlen(axis_arg) != 3 )
{
pj_ctx_set_errno( ctx, PJD_ERR_AXIS );
goto bum_call;
}
if( strchr( axis_legal, axis_arg[0] ) == NULL
|| strchr( axis_legal, axis_arg[1] ) == NULL
|| strchr( axis_legal, axis_arg[2] ) == NULL)
{
pj_ctx_set_errno( ctx, PJD_ERR_AXIS );
goto bum_call;
}
/* it would be nice to validate we don't have on axis repeated */
strcpy( PIN->axis, axis_arg );
}
PIN->is_long_wrap_set = pj_param(ctx, start, "tlon_wrap").i;
if (PIN->is_long_wrap_set)
PIN->long_wrap_center = pj_param(ctx, start, "rlon_wrap").f;
/* central meridian */
PIN->lam0=pj_param(ctx, start, "rlon_0").f;
/* central latitude */
PIN->phi0 = pj_param(ctx, start, "rlat_0").f;
/* false easting and northing */
PIN->x0 = pj_param(ctx, start, "dx_0").f;
PIN->y0 = pj_param(ctx, start, "dy_0").f;
/* general scaling factor */
if (pj_param(ctx, start, "tk_0").i)
PIN->k0 = pj_param(ctx, start, "dk_0").f;
else if (pj_param(ctx, start, "tk").i)
PIN->k0 = pj_param(ctx, start, "dk").f;
else
PIN->k0 = 1.;
if (PIN->k0 <= 0.) {
pj_ctx_set_errno( ctx, -31 );
goto bum_call;
}
/* set units */
s = 0;
if ((name = pj_param(ctx, start, "sunits").s) != NULL) {
for (i = 0; (s = pj_units[i].id) && strcmp(name, s) ; ++i) ;
if (!s) { pj_ctx_set_errno( ctx, -7 ); goto bum_call; }
s = pj_units[i].to_meter;
}
if (s || (s = pj_param(ctx, start, "sto_meter").s)) {
PIN->to_meter = strtod(s, &s);
if (*s == '/') /* ratio number */
PIN->to_meter /= strtod(++s, 0);
PIN->fr_meter = 1. / PIN->to_meter;
} else
PIN->to_meter = PIN->fr_meter = 1.;
/* set vertical units */
s = 0;
if ((name = pj_param(ctx, start, "svunits").s) != NULL) {
for (i = 0; (s = pj_units[i].id) && strcmp(name, s) ; ++i) ;
if (!s) { pj_ctx_set_errno( ctx, -7 ); goto bum_call; }
s = pj_units[i].to_meter;
}
if (s || (s = pj_param(ctx, start, "svto_meter").s)) {
PIN->vto_meter = strtod(s, &s);
if (*s == '/') /* ratio number */
PIN->vto_meter /= strtod(++s, 0);
PIN->vfr_meter = 1. / PIN->vto_meter;
} else {
PIN->vto_meter = PIN->to_meter;
PIN->vfr_meter = PIN->fr_meter;
}
/* prime meridian */
s = 0;
if ((name = pj_param(ctx, start, "spm").s) != NULL) {
const char *value = NULL;
char *next_str = NULL;
for (i = 0; pj_prime_meridians[i].id != NULL; ++i )
{
if( strcmp(name,pj_prime_meridians[i].id) == 0 )
{
value = pj_prime_meridians[i].defn;
break;
}
}
if( value == NULL
&& (dmstor_ctx(ctx,name,&next_str) != 0.0 || *name == '0')
&& *next_str == '\0' )
value = name;
if (!value) { pj_ctx_set_errno( ctx, -46 ); goto bum_call; }
PIN->from_greenwich = dmstor_ctx(ctx,value,NULL);
}
else
PIN->from_greenwich = 0.0;
/* projection specific initialization */
if (!(PIN = (*proj)(PIN)) || ctx->last_errno) {
bum_call: /* cleanup error return */
if (PIN)
pj_free(PIN);
else
for ( ; start; start = curr) {
curr = start->next;
pj_dalloc(start);
}
PIN = 0;
}
if( strcmp(old_locale,"C") != 0 )
setlocale(LC_NUMERIC,old_locale);
free( (char*)old_locale );
return PIN;
}
