void
geod_set(int argc, char **argv) {
paralist *start = 0, *curr;
double es;
char *name;
int i;
/* put arguments into internal linked list */
if (argc <= 0)
emess(1, "no arguments in initialization list");
start = curr = pj_mkparam(argv[0]);
for (i = 1; i < argc; ++i) {
curr->next = pj_mkparam(argv[i]);
curr = curr->next;
}
/* set elliptical parameters */
if (pj_ell_set(pj_get_default_ctx(),start, &geod_a, &es)) emess(1,"ellipse setup failure");
/* set units */
if ((name = pj_param(NULL,start, "sunits").s) != NULL) {
char *s;
struct PJ_UNITS *unit_list = pj_get_units_ref();
for (i = 0; (s = unit_list[i].id) && strcmp(name, s) ; ++i) ;
if (!s)
emess(1,"%s unknown unit conversion id", name);
fr_meter = 1. / (to_meter = atof(unit_list[i].to_meter));
} else
to_meter = fr_meter = 1.;
geod_f = es/(1 + sqrt(1 - es));
geod_ini();
/* check if line or arc mode */
if (pj_param(NULL,start, "tlat_1").i) {
double del_S;
#undef f
phi1 = pj_param(NULL,start, "rlat_1").f;
lam1 = pj_param(NULL,start, "rlon_1").f;
if (pj_param(NULL,start, "tlat_2").i) {
phi2 = pj_param(NULL,start, "rlat_2").f;
lam2 = pj_param(NULL,start, "rlon_2").f;
geod_inv();
geod_pre();
} else if ((geod_S = pj_param(NULL,start, "dS").f) != 0.) {
al12 = pj_param(NULL,start, "rA").f;
geod_pre();
geod_for();
} else emess(1,"incomplete geodesic/arc info");
if ((n_alpha = pj_param(NULL,start, "in_A").i) > 0) {
if (!(del_alpha = pj_param(NULL,start, "rdel_A").f))
emess(1,"del azimuth == 0");
} else if ((del_S = fabs(pj_param(NULL,start, "ddel_S").f)) != 0.) {
n_S = (int)(geod_S / del_S + .5);
} else if ((n_S = pj_param(NULL,start, "in_S").i) <= 0)
emess(1,"no interval divisor selected");
}
/* free up linked list */
for ( ; start; start = curr) {
curr = start->next;
pj_dalloc(start);
}
}
PJ *
pj_init(int argc, char **argv) {
char *s, *name;
paralist *start = NULL;
PJ *(*proj)(PJ *);
paralist *curr;
int i;
PJ *PIN = 0;
const char *old_locale;
errno = pj_errno = 0;
start = NULL;
old_locale = setlocale(LC_NUMERIC, NULL);
setlocale(LC_NUMERIC,"C");
/* 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->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_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;
}
setlocale(LC_NUMERIC,old_locale);
return PIN;
}
parameters pj_init(R const& arguments, bool use_defaults = true)
{
parameters pin;
for (std::vector<std::string>::const_iterator it = boost::begin(arguments);
it != boost::end(arguments); it++)
{
pin.params.push_back(pj_mkparam(*it));
}
/* check if +init present */
if (pj_param(pin.params, "tinit").i)
{
// maybe TODO: handle "init" parameter
//if (!(curr = get_init(&arguments, curr, pj_param(pin.params, "sinit").s)))
}
// find projection -> implemented in projection factory
pin.name = pj_param(pin.params, "sproj").s;
//if (pin.name.empty())
//{ throw proj_exception(-4); }
// set defaults, unless inhibited
// GL-Addition, if use_defaults is false then defaults are ignored
if (use_defaults && ! pj_param(pin.params, "bno_defs").i)
{
// proj4 gets defaults from "proj_def.dat", file of 94/02/23 with a few defaults.
// Here manually
if (pin.name == "lcc")
{
pin.params.push_back(pj_mkparam("lat_1=33"));
pin.params.push_back(pj_mkparam("lat_2=45"));
}
else if (pin.name == "aea")
{
pin.params.push_back(pj_mkparam("lat_1=29.5"));
pin.params.push_back(pj_mkparam("lat_2=45.5 "));
}
else
{
//<general>ellps=WGS84
}
//curr = get_defaults(&arguments, curr, name);
}
/* allocate projection structure */
// done by constructor:
// pin.is_latlong = 0;
// pin.is_geocent = 0;
// pin.long_wrap_center = 0.0;
/* set datum parameters */
pj_datum_set(pin.params, pin);
/* set ellipsoid/sphere parameters */
pj_ell_set(pin.params, pin.a, pin.es);
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.) { throw proj_exception(-6); }
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
&& geometry::math::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(pin.params, "bgeoc").i);
/* over-ranging flag */
pin.over = pj_param(pin.params, "bover").i;
/* longitude center for wrapping */
pin.long_wrap_center = pj_param(pin.params, "rlon_wrap").f;
/* central meridian */
pin.lam0 = pj_param(pin.params, "rlon_0").f;
/* central latitude */
pin.phi0 = pj_param(pin.params, "rlat_0").f;
/* false easting and northing */
pin.x0 = pj_param(pin.params, "dx_0").f;
pin.y0 = pj_param(pin.params, "dy_0").f;
/* general scaling factor */
if (pj_param(pin.params, "tk_0").i)
pin.k0 = pj_param(pin.params, "dk_0").f;
else if (pj_param(pin.params, "tk").i)
pin.k0 = pj_param(pin.params, "dk").f;
else
pin.k0 = 1.;
if (pin.k0 <= 0.) {
throw proj_exception(-31);
}
/* set units */
std::string s;
std::string units = pj_param(pin.params, "sunits").s;
if (! units.empty())
{
const int n = sizeof(pj_units) / sizeof(pj_units[0]);
int index = -1;
for (int i = 0; i < n && index == -1; i++)
{
if(pj_units[i].id == units)
{
index = i;
}
}
if (index == -1) { throw proj_exception(-7); }
s = pj_units[index].to_meter;
}
if (s.empty())
{
s = pj_param(pin.params, "sto_meter").s;
}
if (! s.empty())
{
// TODO: IMPLEMENT SPLIT
pin.to_meter = atof(s.c_str());
//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.clear();
std::string pm = pj_param(pin.params, "spm").s;
if (! pm.empty())
{
std::string value;
int n = sizeof(pj_prime_meridians) / sizeof(pj_prime_meridians[0]);
int index = -1;
for (int i = 0; i < n && index == -1; i++)
{
if(pj_prime_meridians[i].id == pm)
{
value = pj_prime_meridians[i].defn;
index = i;
}
}
if (index == -1) { throw proj_exception(-7); }
if (value.empty()) { throw proj_exception(-46); }
geometry::strategy::dms_parser<true> parser;
pin.from_greenwich = parser(value.c_str());
}
else
{
pin.from_greenwich = 0.0;
}
return pin;
}
void geod_set(int argc, char **argv)
{
paralist *start = 0, *curr = NULL; /* added NULL */
double es;
char *name;
int i;
/*
* put arguments into internal linked list
*/
if (argc <= 0)
emess(1, "no arguments in initialization list");
for (i = 0; i < argc; ++i)
if (i)
curr = curr->next = pj_mkparam(argv[i]);
else
start = curr = pj_mkparam(argv[i]);
/*
* set elliptical parameters
*/
if (pj_ell_set(start, &geod_a, &es))
emess(1, "ellipse setup failure");
/*
* set units
*/
if ((name = pj_param(start, "sunits").s)) { /* added parentheses */
char *s;
for (i = 0; (s = pj_units[i].id) && strcmp(name, s); ++i);
if (!s)
emess(1, "%s unknown unit conversion id", name);
fr_meter = 1. / (to_meter = atof(pj_units[i].to_meter));
} else
to_meter = fr_meter = 1.;
if ((ellipse = es != 0.)) { /* added parentheses */
onef = sqrt(1. - es);
geod_f = 1 - onef;
f2 = geod_f / 2;
f4 = geod_f / 4;
f64 = geod_f * geod_f / 64;
} else {
onef = 1.;
geod_f = f2 = f4 = f64 = 0.;
}
/*
* check if line or arc mode
*/
if (pj_param(start, "tlat_1").i) {
double del_S;
#undef f
phi1 = pj_param(start, "rlat_1").f;
lam1 = pj_param(start, "rlon_1").f;
if (pj_param(start, "tlat_2").i) {
phi2 = pj_param(start, "rlat_2").f;
lam2 = pj_param(start, "rlon_2").f;
geod_inv();
geod_pre();
} else if ((geod_S = pj_param(start, "dS").f)) { /* added
* parentheses
*/
al12 = pj_param(start, "rA").f;
geod_pre();
geod_for();
} else
emess(1, "incomplete geodesic/arc info");
if ((n_alpha = pj_param(start, "in_A").i) > 0) {
if (!(del_alpha = pj_param(start, "rdel_A").f))
emess(1, "del azimuth == 0");
} else if ((del_S = fabs(pj_param(start, "ddel_S").f))) { /* added
* parentheses
*/
n_S = geod_S / del_S + .5;
} else if ((n_S = pj_param(start, "in_S").i) <= 0)
emess(1, "no interval divisor selected");
}
/*
* free up linked list
*/
for (; start; start = curr) {
curr = start->next;
pj_dalloc(start);
}
}
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;
}
GEODESIC_T *
GEOD_init(int argc, char **argv, GEODESIC_T *GEODESIC)
{
paralist *start = 0, *curr = 0;
double es;
char *name;
int i;
if(0 == GEODESIC)
{
GEODESIC = malloc(sizeof(GEODESIC_T));
}
memset(GEODESIC, 0, sizeof(GEODESIC_T));
/* put arguments into internal linked list */
if (argc <= 0)
emess(1, "no arguments in initialization list");
for (i = 0; i < argc; ++i)
if (i)
curr = curr->next = pj_mkparam(argv[i]);
else
start = curr = pj_mkparam(argv[i]);
/* set elliptical parameters */
if (pj_ell_set(start, &GEODESIC->A, &es)) emess(1,"ellipse setup failure");
/* set units */
if ((name = pj_param(start, "sunits").s)) {
char *s;
struct PJ_UNITS *unit_list = pj_get_units_ref();
for (i = 0; (s = unit_list[i].id) && strcmp(name, s) ; ++i) ;
if (!s)
emess(1,"%s unknown unit conversion id", name);
GEODESIC->FR_METER = 1. / (GEODESIC->TO_METER = atof(unit_list[i].to_meter));
} else
GEODESIC->TO_METER = GEODESIC->FR_METER = 1.;
if ((GEODESIC->ELLIPSE = (es != 0.))) {
GEODESIC->ONEF = sqrt(1. - es);
GEODESIC->FLAT = 1 - GEODESIC->ONEF;
GEODESIC->FLAT2 = GEODESIC->FLAT/2;
GEODESIC->FLAT4 = GEODESIC->FLAT/4;
GEODESIC->FLAT64 = GEODESIC->FLAT*GEODESIC->FLAT/64;
} else {
GEODESIC->ONEF = 1.;
GEODESIC->FLAT = GEODESIC->FLAT2 = GEODESIC->FLAT4 = GEODESIC->FLAT64 = 0.;
}
/* check if line or arc mode */
if (pj_param(start, "tlat_1").i) {
double del_S;
#undef f
GEODESIC->p1.u = pj_param(start, "rlat_1").f;
GEODESIC->p1.v = pj_param(start, "rlon_1").f;
if (pj_param(start, "tlat_2").i) {
GEODESIC->p2.u = pj_param(start, "rlat_2").f;
GEODESIC->p2.v = pj_param(start, "rlon_2").f;
geod_inv(GEODESIC);
geod_pre(GEODESIC);
} else if ((GEODESIC->DIST = pj_param(start, "dS").f)) {
GEODESIC->ALPHA12 = pj_param(start, "rA").f;
geod_pre(GEODESIC);
geod_for(GEODESIC);
} else emess(1,"incomplete geodesic/arc info");
if ((GEODESIC->n_alpha = pj_param(start, "in_A").i) > 0) {
if (!(GEODESIC->del_alpha = pj_param(start, "rdel_A").f))
emess(1,"del azimuth == 0");
} else if ((del_S = fabs(pj_param(start, "ddel_S").f))) {
GEODESIC->n_S = GEODESIC->DIST / del_S + .5;
} else if ((GEODESIC->n_S = pj_param(start, "in_S").i) <= 0)
emess(1,"no interval divisor selected");
}
/* free up linked list */
for ( ; start; start = curr) {
curr = start->next;
pj_dalloc(start);
}
return GEODESIC;
}
