projects / andy / viking.git / blame
| Commit | Line | Data |
|---|---|---|
| 50a14534 EB |
1 | /* |
| 2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
| 3 | * | |
| 4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License as published by | |
| 8 | * the Free Software Foundation; either version 2 of the License, or | |
| 9 | * (at your option) any later version. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * along with this program; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 19 | * | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef _VIKING_VIKCOORD_H | |
| 23 | #define _VIKING_VIKCOORD_H | |
| 24 | ||
| 25 | typedef gshort VikCoordMode; | |
| 26 | #define VIK_COORD_UTM 0 | |
| 27 | #define VIK_COORD_LATLON 1 | |
| 28 | ||
| 29 | #define VIK_UTM(x) ((struct UTM *)(x)) | |
| 30 | #define VIK_LATLON(x) ((struct LatLon *)(x)) | |
| 31 | ||
| 32 | typedef struct { | |
| 33 | gdouble north_south; /* northing or lat */ | |
| 34 | gdouble east_west; /* easting or lon */ | |
| 35 | gchar utm_zone; | |
| 36 | gchar utm_letter; | |
| 37 | ||
| 38 | VikCoordMode mode; | |
| 39 | } VikCoord; | |
| 40 | /* notice we can cast to either UTM or LatLon */ | |
| 41 | /* possible more modes to come? xy? we'll leave that as an option */ | |
| 42 | ||
| 43 | VikCoord *vik_coord_new(); | |
| 44 | void vik_coord_free(VikCoord *coord); | |
| 45 | ||
| 46 | void vik_coord_convert(VikCoord *coord, VikCoordMode dest_mode); | |
| 47 | void vik_coord_copy_convert(const VikCoord *coord, VikCoordMode dest_mode, VikCoord *dest); | |
| 48 | gdouble vik_coord_diff(const VikCoord *c1, const VikCoord *c2); | |
| 49 | ||
| 50 | void vik_coord_load_from_latlon ( VikCoord *coord, VikCoordMode mode, const struct LatLon *ll ); | |
| 51 | void vik_coord_load_from_utm ( VikCoord *coord, VikCoordMode mode, const struct UTM *utm ); | |
| 52 | ||
| 53 | void vik_coord_to_latlon ( const VikCoord *coord, struct LatLon *dest ); | |
| 54 | void vik_coord_to_utm ( const VikCoord *coord, struct UTM *dest ); | |
| 55 | ||
| 56 | gboolean vik_coord_equals ( const VikCoord *coord1, const VikCoord *coord2 ); | |
| 57 | ||
| 58 | /* all coord operations MUST BE ABSTRACTED!!! */ | |
| 59 | ||
| 60 | #endif |