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Hacky, but in a different way

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XANTRONIX 2025-02-24 00:05:17 -05:00
parent 1cb8875053
commit 253a25499b
1 changed files with 12 additions and 6 deletions
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18
lib/xmet/skew_t.py
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@ -18,7 +18,7 @@ TEMP_MIN = -40
TEMP_RANGE = TEMP_MAX - TEMP_MIN TEMP_RANGE = TEMP_MAX - TEMP_MIN
TEMP_CENTER = 0 # degrees C TEMP_CENTER = 0 # degrees C
TEMP_STEP = 5 TEMP_STEP = 5
TEMP_STEP_COUNT = 16 TEMP_STEP_COUNT = math.ceil(TEMP_RANGE / TEMP_STEP)
def clamp(value, lowest, highest): def clamp(value, lowest, highest):
if value < lowest: if value < lowest:
@ -58,11 +58,6 @@ class SkewT():
cr.rel_line_to(self.width, 0) cr.rel_line_to(self.width, 0)
cr.stroke() cr.stroke()
def draw_isotherms(self, cr: cairo.Context, x: float, y: float):
cr.set_source_rgba(0.1, 0.5, 0.1, 0.8)
pass
def skew_t_to_graph(self, x: float, y: float): def skew_t_to_graph(self, x: float, y: float):
return (x+y, y) return (x+y, y)
@ -72,6 +67,17 @@ class SkewT():
return self.skew_t_to_graph(x, y) return self.skew_t_to_graph(x, y)
def draw_isotherms(self, cr: cairo.Context, x: float, y: float):
cr.set_source_rgb(0.99, 0.99, 0.99)
for temp in range(-150, TEMP_MAX+1, TEMP_STEP):
x1, y1 = self.graph_to_screen(*self.sample_to_graph(temp, PRESSURE_MAX))
x2, y2 = self.graph_to_screen(*self.sample_to_graph(temp, PRESSURE_MIN))
cr.move_to(x1, y1)
cr.line_to(x2, y2)
cr.stroke()
def draw_samples(self, def draw_samples(self,
cr: cairo.Context, cr: cairo.Context,
x: float, x: float,