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author | Thomas Gubler <thomasgubler@gmail.com> | 2014-04-29 14:39:36 +0200 |
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committer | Thomas Gubler <thomasgubler@gmail.com> | 2014-04-29 14:39:36 +0200 |
commit | 3ec818ce1ed764aeb5f3e8c7371b53b87c2498c3 (patch) | |
tree | 4c376080977e97747913dc29a1bb3b26d60c6808 /src/lib/geo/geo.h | |
parent | 35b0c294568ca916b344e6a9e6a8e27cefb6f8ca (diff) | |
download | px4-firmware-3ec818ce1ed764aeb5f3e8c7371b53b87c2498c3.tar.gz px4-firmware-3ec818ce1ed764aeb5f3e8c7371b53b87c2498c3.tar.bz2 px4-firmware-3ec818ce1ed764aeb5f3e8c7371b53b87c2498c3.zip |
rerwite projection interrface to not break the current implementation
Diffstat (limited to 'src/lib/geo/geo.h')
-rw-r--r-- | src/lib/geo/geo.h | 79 |
1 files changed, 66 insertions, 13 deletions
diff --git a/src/lib/geo/geo.h b/src/lib/geo/geo.h index b0f8d6bc4..990f79194 100644 --- a/src/lib/geo/geo.h +++ b/src/lib/geo/geo.h @@ -76,45 +76,98 @@ struct map_projection_reference_s { }; /** - * Initializes the map transformation. + * Checks if global projection was initialized * @return true if map was initialized before, false else */ -__EXPORT bool map_projection_initialized(); +__EXPORT bool map_projection_global_initialized(); +/** + * Checks if projection given as argument was initialized + * @return true if map was initialized before, false else + */ +__EXPORT bool map_projection_initialized(const struct map_projection_reference_s *ref); /** - * Initializes the map transformation. + * Get the timestamp of the global map projection * @return the timestamp of the map_projection */ -__EXPORT uint64_t map_projection_timestamp(); +__EXPORT uint64_t map_projection_global_timestamp(); /** - * Writes the reference values to ref_lat and ref_lon + * Get the timestamp of the map projection given by the argument + * @return the timestamp of the map_projection + */ +__EXPORT uint64_t map_projection_timestamp(const struct map_projection_reference_s *ref); + +/** + * Writes the reference values of the global projection to ref_lat and ref_lon * @return 0 if map_projection_init was called before, -1 else */ -__EXPORT int map_projection_reference(double *ref_lat, double *ref_lon); +__EXPORT int map_projection_global_reference(double *ref_lat, double *ref_lon); + +/** + * Writes the reference values of the projection given by the argument to ref_lat and ref_lon + * @return 0 if map_projection_init was called before, -1 else + */ +__EXPORT int map_projection_reference(const struct map_projection_reference_s *ref, double *ref_lat, double *ref_lon); + +/** + * Initializes the global map transformation. + * + * Initializes the transformation between the geographic coordinate system and + * the azimuthal equidistant plane + * @param lat in degrees (47.1234567°, not 471234567°) + * @param lon in degrees (8.1234567°, not 81234567°) + */ +__EXPORT int map_projection_global_init(double lat_0, double lon_0, uint64_t timestamp); /** - * Initializes the map transformation. + * Initializes the map transformation given by the argument. * - * Initializes the transformation between the geographic coordinate system and the azimuthal equidistant plane + * Initializes the transformation between the geographic coordinate system and + * the azimuthal equidistant plane * @param lat in degrees (47.1234567°, not 471234567°) * @param lon in degrees (8.1234567°, not 81234567°) */ -__EXPORT int map_projection_init(double lat_0, double lon_0, uint64_t timestamp); +__EXPORT int map_projection_init(struct map_projection_reference_s *ref, double lat_0, double lon_0, uint64_t timestamp); /** - * Transforms a point in the geographic coordinate system to the local azimuthal equidistant plane + * Transforms a point in the geographic coordinate system to the local + * azimuthal equidistant plane using the global projection + * @param x north + * @param y east + * @param lat in degrees (47.1234567°, not 471234567°) + * @param lon in degrees (8.1234567°, not 81234567°) + * @return 0 if map_projection_init was called before, -1 else + */ +__EXPORT int map_projection_global_project(double lat, double lon, float *x, float *y); + + + /* Transforms a point in the geographic coordinate system to the local + * azimuthal equidistant plane using the projection given by the argument + * @param x north + * @param y east + * @param lat in degrees (47.1234567°, not 471234567°) + * @param lon in degrees (8.1234567°, not 81234567°) + * @return 0 if map_projection_init was called before, -1 else + */ +__EXPORT int map_projection_project(const struct map_projection_reference_s *ref, double lat, double lon, float *x, float *y); + +/** + * Transforms a point in the local azimuthal equidistant plane to the + * geographic coordinate system using the global projection + * * @param x north * @param y east * @param lat in degrees (47.1234567°, not 471234567°) * @param lon in degrees (8.1234567°, not 81234567°) * @return 0 if map_projection_init was called before, -1 else */ -__EXPORT int map_projection_project(double lat, double lon, float *x, float *y); +__EXPORT int map_projection_global_reproject(float x, float y, double *lat, double *lon); /** - * Transforms a point in the local azimuthal equidistant plane to the geographic coordinate system + * Transforms a point in the local azimuthal equidistant plane to the + * geographic coordinate system using the projection given by the argument * * @param x north * @param y east @@ -122,7 +175,7 @@ __EXPORT int map_projection_project(double lat, double lon, float *x, float *y); * @param lon in degrees (8.1234567°, not 81234567°) * @return 0 if map_projection_init was called before, -1 else */ -__EXPORT int map_projection_reproject(float x, float y, double *lat, double *lon); +__EXPORT int map_projection_reproject(const struct map_projection_reference_s *ref, float x, float y, double *lat, double *lon); /** * Returns the distance to the next waypoint in meters. |