From 4f81f59e37ac2ed42694ded0fb97ba8f93699fa5 Mon Sep 17 00:00:00 2001
From: Howard Soh <hsoh@seneca.rap.ucar.edu>
Date: Fri, 20 Jan 2023 16:08:37 -0700
Subject: [PATCH] #2228 Added parameters for ellipsoidal earth
---
src/libcode/vx_grid/st_grid_defs.h | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/src/libcode/vx_grid/st_grid_defs.h b/src/libcode/vx_grid/st_grid_defs.h
index 66596de81a..ab44bdcb10 100644
--- a/src/libcode/vx_grid/st_grid_defs.h
+++ b/src/libcode/vx_grid/st_grid_defs.h
@@ -25,9 +25,9 @@ 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;
@@ -35,11 +35,17 @@ struct StereographicData {
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;