diff options
Diffstat (limited to 'src/iso19111/c_api.cpp')
| -rw-r--r-- | src/iso19111/c_api.cpp | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/src/iso19111/c_api.cpp b/src/iso19111/c_api.cpp index b3f200fe..f7dcd354 100644 --- a/src/iso19111/c_api.cpp +++ b/src/iso19111/c_api.cpp @@ -1950,7 +1950,7 @@ void proj_string_list_destroy(PROJ_STRING_LIST list) { // --------------------------------------------------------------------------- -/** \brief Instanciate a default set of parameters to be used by +/** \brief Instantiate a default set of parameters to be used by * proj_get_crs_list(). * * @return a new object to free with proj_get_crs_list_parameters_destroy() */ @@ -1987,7 +1987,7 @@ void proj_get_crs_list_parameters_destroy(PROJ_CRS_LIST_PARAMETERS *params) { * entry is NULL. This array should be freed with proj_crs_info_list_destroy() * * When no filter parameters are set, this is functionnaly equivalent to - * proj_get_crs_info_list_from_database(), instanciating a PJ* object for each + * proj_get_crs_info_list_from_database(), instantiating a PJ* object for each * of the proj_create_from_database() and retrieving information with the * various getters. However this function will be much faster. * @@ -5734,7 +5734,7 @@ PJ *proj_create_conversion_equal_earth(PJ_CONTEXT *ctx, double center_long, * @return TRUE or FALSE. */ -int proj_coordoperation_is_instanciable(PJ_CONTEXT *ctx, +int proj_coordoperation_is_instantiable(PJ_CONTEXT *ctx, const PJ *coordoperation) { assert(coordoperation); auto op = dynamic_cast<const CoordinateOperation *>( @@ -5746,7 +5746,7 @@ int proj_coordoperation_is_instanciable(PJ_CONTEXT *ctx, } auto dbContext = getDBcontextNoException(ctx, __FUNCTION__); try { - return op->isPROJInstanciable(dbContext) ? 1 : 0; + return op->isPROJInstantiable(dbContext) ? 1 : 0; } catch (const std::exception &) { return 0; } @@ -5754,6 +5754,36 @@ int proj_coordoperation_is_instanciable(PJ_CONTEXT *ctx, // --------------------------------------------------------------------------- +/** \brief Return whether a coordinate operation has a "ballpark" + * transformation, + * that is a very approximate one, due to lack of more accurate transformations. + * + * Typically a null geographic offset between two horizontal datum, or a + * null vertical offset (or limited to unit changes) between two vertical + * datum. Errors of several tens to one hundred meters might be expected, + * compared to more accurate transformations. + * + * @param ctx PROJ context, or NULL for default context + * @param coordoperation Objet of type CoordinateOperation or derived classes + * (must not be NULL) + * @return TRUE or FALSE. + */ + +int proj_coordoperation_has_ballpark_transformation(PJ_CONTEXT *ctx, + const PJ *coordoperation) { + assert(coordoperation); + auto op = dynamic_cast<const CoordinateOperation *>( + coordoperation->iso_obj.get()); + if (!op) { + proj_log_error(ctx, __FUNCTION__, + "Object is not a CoordinateOperation"); + return 0; + } + return op->hasBallparkTransformation(); +} + +// --------------------------------------------------------------------------- + /** \brief Return the number of parameters of a SingleOperation * * @param ctx PROJ context, or NULL for default context |