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Use units.py in hodograph.py

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XANTRONIX 2025-03-17 22:14:46 -04:00
parent 35c8ee27b1
commit 8e359850f7
1 changed files with 3 additions and 12 deletions
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15
lib/xmet/hodograph.py
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@ -1,7 +1,7 @@
import math
import cairo
from xmet.igra import IGRAReader
from xmet.units import rad, knots
from xmet.sounding import Sounding
WIND_SPEED_MAX = 140 # knots
@ -10,15 +10,6 @@ WIND_SPEED_STEP = 10
WIND_DIR_STEP = 30 # degrees
def radians(degrees: float) -> float:
return (degrees + 90) * (math.pi / 180.0)
def degrees(radians: float) -> float:
return (radians * (180.0 / math.pi)) - 90
def knots(ms: float) -> float:
return ms * 1.944
class Hodograph():
def __init__(self, width, height):
self.width = min(width, height)
@ -29,8 +20,8 @@ class Hodograph():
def sample_to_screen(self, wind_speed: dir, wind_dir: float) -> tuple:
r = self.radius * (wind_speed / WIND_SPEED_MAX)
x = self.radius + r * math.cos(radians(wind_dir))
y = self.radius + r * math.sin(radians(wind_dir))
x = self.radius + r * math.cos(rad(wind_dir))
y = self.radius + r * math.sin(rad(wind_dir))
if self.extents is None:
return x, y