lib/xmet/hodograph.py

@@ -22,13 +22,8 @@ def knots(ms: float) -> float:
 class Hodograph():
     def __init__(self, width, height):
         self.zoom     = 1.2
-        self.offset_x = 0.1 # Percentage of the upper left quadrant rendered
-        self.offset_y = 0.9 # Percentage of the upper right quadrant rendered
-
-        self.min_x = 0
-        self.min_y = 0
-        self.max_x = 0
-        self.max_y = 0
+        self.offset_x = 0.1
+        self.offset_y = 0.9
 
         self.width  = min(width, height)
         self.height = min(width, height)
@@ -50,32 +45,6 @@ class Hodograph():
             self.offset_y * self.height + gy
         )
 
-    def find_extents(self, sounding: Sounding):
-        """
-        Determine the boundaries of the sounding to set the center and zoom
-        appropriately.
-        """
-        for sample in sounding.samples:
-            x, y = self.sample_to_graph(sample.wind_speed, sample.wind_dir)
-
-            if self.min_x > x:
-                self.min_x = x
-
-            if self.min_y > y:
-                self.min_y = y
-
-            if self.max_x < x:
-                self.max_x = x
-
-            if self.max_y < y:
-                self.max_y = y
-
-        self.offset_x = self.min_x / self.radius + 0.1
-        self.offset_y = (self.radius - self.max_y) / self.radius
-        self.zoom     = min(self.width, self.height) / max(self.max_x - self.min_x,
-                            self.max_y - self.min_y) / 2
-        self.radius = min(self.width, self.height) * self.zoom
-
     def draw_speed_lines(self, cr: cairo.Context, x, y):
         cr.save()
 
@@ -230,8 +199,6 @@ class Hodograph():
             offset += interval
 
     def draw(self, cr: cairo.Context, x, y, sounding: Sounding):
-        self.find_extents(sounding)
-
         cr.rectangle(x, y, self.width, self.height)
         cr.clip()
 

lib/xmet/raob.py

@@ -10,9 +10,6 @@ from xmet.sounding import Sounding, SoundingSample
 CHUNK_SEP         = "\x01"
 CHUNK_STRIP_CHARS = "\x01\x03\x0a\x20"
 
-def meters_second(knots: float) -> float:
-    return knots / 1.944
-
 class RAOBReaderException(Exception):
     ...
 
@@ -95,7 +92,7 @@ class RAOBObs():
 
         return {
             'dir':   wind_dir,
-            'speed': meters_second(wind_speed)
+            'speed': wind_speed
         }
 
     TTAA_PRESSURES = {