regional cast and stretch does not work yet

Author: gwbres

src/lib.rs

@@ -594,14 +594,16 @@ impl IONEX {
     /// The 2D planar interpolation is applied to define the TEC as originally
     /// non existing coordinates.
     /// - stretch < 1.0: reduces precision.  
+    /// NB: work in progress, not validated yet.
     pub fn grid_precision_stretch(&self, stretch_factor: f64) -> IONEX {
         let mut s = self.clone();
         s.grid_precision_stretch_mut(stretch_factor);
         s
     }
 
     /// Stretch this mutable [IONEX], modifying the grid precision.
-    /// See [Self::grid_precision_stretch] for more information.
+    /// See [Self::grid_precision_stretch] for more information.  
+    /// NB: work in progress, not validated yet.
     pub fn grid_precision_stretch_mut(&mut self, stretch_factor: f64) {
         // update grid
         self.header.grid.latitude.start *= stretch_factor;

src/record/mod.rs

@@ -70,7 +70,8 @@ impl Record {
         self.map.get_mut(key)
     }
 
-    /// Collect a IONEX [Record] from a list of [MapCell].
+    /// Collect a IONEX [Record] from a list of [MapCell].  
+    /// NB: work in progress, not validated yet.
     pub fn from_map_cells(
         fixed_altitude_km: f64,
         min_latitude_ddeg: f64,