#2228 Added parameters for ellipsoidal earth

dtcenter · Jan 20, 2023 · cd96574 · cd96574
1 parent 8b7c7cf
commit cd96574
Showing 1 changed file with 10 additions and 4 deletions.
diff --git a/src/libcode/vx_grid/st_grid_defs.h b/src/libcode/vx_grid/st_grid_defs.h
@@ -25,21 +25,27 @@ struct StereographicData {
 
    const char * name;
 
-   char hemisphere;   //  'N' or 'S'
+   char hemisphere;     //  'N' or 'S' from latitude_of_projection_origin
 
-   double scale_lat;
+   double scale_lat;    //latitude_of_projection_origin
 
    double lat_pin;
    double lon_pin;
 
    double x_pin;
    double y_pin;
 
-   double lon_orient;
+   double lon_orient;   // -straight_vertical_longitude_from_pole
 
    double d_km;
 
-   double r_km;
+   double r_km;     // semi_major_axis
+
+   // ellipsoidal earth
+   double eccentricity; // 0 for shperical earth
+   double false_east;
+   double false_north;
+   double scale_factor;
 
    int nx;
    int ny;