fixed units retrieval

Author: claxn

docs/guides/geometry.ipynb

@@ -21,7 +21,7 @@
    "id": "2ee126e9",
    "metadata": {},
    "source": [
-    "# Geometries\n",
+    "# Geometry\n",
     "\n",
     "`pytileproj` does not have GDAL and OGR as a direct dependency and instead defines its own classes to store geospatial geometries. These geometries are used as an interface to and from many functions and class methods within `pytileproj`. \n",
     "\n",

docs/guides/tiling_system.ipynb

@@ -506,7 +506,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.12.12"
+   "version": "3.12.3"
   }
  },
  "nbformat": 4,

src/pytileproj/tiling_system.py

@@ -173,7 +173,7 @@ def pyproj_crs(self) -> pyproj.CRS:
     @property
     def unit(self) -> str:
         """Return projection unit."""
-        return self._crs.prime_meridian.unit_name
+        return self._crs.coordinate_system.to_cf()[0]["units"]
 
     def lonlat_to_xy(self, lon: float, lat: float) -> ProjCoord:
         """Convert geographic to a projected coordinates.