diff options
Diffstat (limited to 'src/iso19111/crs.cpp')
| -rw-r--r-- | src/iso19111/crs.cpp | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/iso19111/crs.cpp b/src/iso19111/crs.cpp index 7c8fcd81..6f511043 100644 --- a/src/iso19111/crs.cpp +++ b/src/iso19111/crs.cpp @@ -1608,7 +1608,7 @@ GeodeticCRS::velocityModel() PROJ_PURE_DEFN { // --------------------------------------------------------------------------- -/** \brief Return whether the CRS is a geocentric one. +/** \brief Return whether the CRS is a Cartesian geocentric one. * * A geocentric CRS is a geodetic CRS that has a Cartesian coordinate system * with three axis, whose direction is respectively @@ -1629,6 +1629,31 @@ bool GeodeticCRS::isGeocentric() PROJ_PURE_DEFN { // --------------------------------------------------------------------------- +/** \brief Return whether the CRS is a Spherical planetocentric one. + * + * A Spherical planetocentric CRS is a geodetic CRS that has a spherical + * (angular) coordinate system with 2 axis, which represent geocentric latitude/ + * longitude or longitude/geocentric latitude. + * + * Such CRS are typically used in use case that apply to non-Earth bodies. + * + * @return true if the CRS is a Spherical planetocentric CRS. + * + * @since 8.2 + */ +bool GeodeticCRS::isSphericalPlanetocentric() PROJ_PURE_DEFN { + const auto &cs = coordinateSystem(); + const auto &axisList = cs->axisList(); + return axisList.size() == 2 && + dynamic_cast<cs::SphericalCS *>(cs.get()) != nullptr && + ((ci_equal(axisList[0]->nameStr(), "planetocentric latitude") && + ci_equal(axisList[1]->nameStr(), "planetocentric longitude")) || + (ci_equal(axisList[0]->nameStr(), "planetocentric longitude") && + ci_equal(axisList[1]->nameStr(), "planetocentric latitude"))); +} + +// --------------------------------------------------------------------------- + /** \brief Instantiate a GeodeticCRS from a datum::GeodeticReferenceFrame and a * cs::SphericalCS. * |