diff options
Diffstat (limited to 'navit/tools/gpx2navit_txt/src/utils.c')
| -rw-r--r-- | navit/tools/gpx2navit_txt/src/utils.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/navit/tools/gpx2navit_txt/src/utils.c b/navit/tools/gpx2navit_txt/src/utils.c new file mode 100644 index 000000000..b9b724791 --- /dev/null +++ b/navit/tools/gpx2navit_txt/src/utils.c @@ -0,0 +1,199 @@ +#include "gpx2navit_txt.h" +#include "projects.h" +#include "geodesic.h" + +double getDistanceCore(char *p1, char *l1, char *p2, char *l2); +void checkEllpsUnit(char *unit); +double checkLengthUnit(char *unit); +int checkTimeUnit(char *unit); +double getTimeInterval(char *_t, char *t); +double getSpeed(double length, double ti, double to_meter, int to_sec); +double getDistance(double _x, double _y, double x, double y); +// todo void closeShpFiles(shphandles * shps); +// todo void closeDbfFiles(dbfhandles * dbfs); +void *myMallocRep(size_t size, const char *fileName, int line); + +void checkEllpsUnit(char *unit) +{ +/* + * checks ellipse unit can be used by proj4 + */ + int isOK = 0; + struct PJ_ELLPS *el; /* project.h of proj4 */ + for (el = pj_ellps; el->id; ++el) { + if (!strcmp(el->id, unit)) { + isOK = 1; + } + } + if (!isOK) { + fputs + ("The ellipse argument is not correct or supported by libproj\n", + stderr); + fputs("You can choose the argument from a list below.\n\n", + stderr); + for (el = pj_ellps; el->id; el++) { + printf("%10s\t%s\n", el->id, el->name); + } + exit(ERR_ELLPSUNIT); + } +} + +double checkLengthUnit(char *unit) +{ +/* + * checks length unit can be used by proj4 + * then returns unit value to meter + */ + int isOK = 0; + double to_meter = 0; + struct PJ_UNITS *ut; /* project.h of proj4 */ + for (ut = pj_units; ut->id; ut++) { + if (!strcmp(ut->id, unit)) { + isOK = 1; + to_meter = atof(ut->to_meter); + } + } + if (!isOK) { + fputs + ("The length unit argument is not correct or supported by libproj.\n", + stderr); + fputs("You can choose the argument from a list below.\n\n", + stderr); + for (ut = pj_units; ut->id; ut++) { + printf("%s\t%s\n", ut->id, ut->name); + } + exit(ERR_LENGTHUNIT); + } + return to_meter; +} + +int checkTimeUnit(char *unit) +{ + char *u[8] = { "sec", "s", "min", "m", "hour", "h", "day", "d" }; + int p[8] = { 1, 1, 60, 60, 3600, 3600, 86400, 86400 }; + int i, to_sec = 0; + for (i = 0; i < 8; i++) { + if (!strcmp(u[i], unit)) { + to_sec = p[i]; + } + } + if (!to_sec) { + fputs("The time unit argument is not correct.\n", stderr); + fputs("You can choose the argument from sec, min, hour or day.\n", + stderr); + exit(ERR_TIMEUNIT); + } + return to_sec; +} + +double getTimeInterval(char *_t, char *t) +{ +/* + * Returns a time interval between _t and t. + * The arguments should be "YYYY-MM-DDThh:mm:ssZ" (xml schema + * datetime format without time zone) format. + */ + double ti; + struct tm _tt; + struct tm tt; + time_t _tmt, tmt; + memset(&_tt, 0, sizeof(_tt)); + memset(&tt, 0, sizeof(tt)); + sscanf(_t, "%d-%d-%dT%d:%d:%dZ", &_tt.tm_year, &_tt.tm_mon, + &_tt.tm_mday, &_tt.tm_hour, &_tt.tm_min, &_tt.tm_sec); + _tt.tm_year -= 1900; + _tt.tm_mon -= 1; + sscanf(t, "%d-%d-%dT%d:%d:%d", &tt.tm_year, &tt.tm_mon, &tt.tm_mday, + &tt.tm_hour, &tt.tm_min, &tt.tm_sec); + tt.tm_year -= 1900; + tt.tm_mon -= 1; + _tmt = mktime(&_tt); + tmt = mktime(&tt); + ti = difftime(tmt, _tmt); + return ti; +} + +double getSpeed(double length, double ti, double to_meter, int to_sec) +{ +/* + * Culculates speed from length and time. + */ + double speed; + if (!length || !ti) + speed = 0; + else + speed = (length / to_meter) / (ti / to_sec); + return speed; +} + +double getDistanceCore(char *p1, char *l1, char *p2, char *l2) +{ + /* + * Culculates a geodesic length between two points + * using geod_*.c + */ + phi1 = dmstor(p1, &p1); + lam1 = dmstor(l1, &l1); + phi2 = dmstor(p2, &p2); + lam2 = dmstor(l2, &l2); + geod_inv(); + return geod_S; +} + +double getDistance(double _x, double _y, double x, double y) +{ + /* + * Culculates a geodesic length between two points + */ + double length; + char p1[17], l1[17], p2[17], l2[17]; + sprintf(p1, "%f", _x); + sprintf(l1, "%f", _y); + sprintf(p2, "%f", x); + sprintf(l2, "%f", y); + length = getDistanceCore(p1, l1, p2, l2); + return length; +} + +//todo void closeShpFiles(shphandles * shps) +//{ + /* + * Closes all SHP files if they opened + */ +// if (shps->wpt) +// SHPClose(shps->wpt); +// if (shps->trk) +// SHPClose(shps->trk); +// if (shps->trk_edg) +// SHPClose(shps->trk_edg); +// if (shps->trk_pnt) +// SHPClose(shps->trk_pnt); +// if (shps->rte) +// SHPClose(shps->rte); +// if (shps->rte_edg) +// SHPClose(shps->rte_edg); +// if (shps->rte_pnt) +// SHPClose(shps->rte_pnt); +//} + +//todo void closeDbfFiles(dbfhandles * dbfs) +//{ + /* + * Closes all DBF files if they opened + */ +// if (dbfs->wpt) +// DBFClose(dbfs->wpt); +// if (dbfs->trk) +// DBFClose(dbfs->trk); +// if (dbfs->trk_edg) +// DBFClose(dbfs->trk_edg); +// if (dbfs->trk_pnt) +// DBFClose(dbfs->trk_pnt); +// if (dbfs->rte) +// DBFClose(dbfs->rte); +// if (dbfs->rte_edg) +// DBFClose(dbfs->rte_edg); +// if (dbfs->rte_pnt) +// DBFClose(dbfs->rte_pnt); +//} + |