86 lines
2.2 KiB
Python
86 lines
2.2 KiB
Python
"""
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Satelliteninfos
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- Sat mit Fix: ausgefüllter Kreis
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- Sat ohne fix: leerer Kreis
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- Slots für 12 SNR-Balken
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"""
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import cairo
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import math
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from .page import Page
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class SkyView(Page):
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def __init__(self, pageno, cfg, appdata, boatdata):
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super().__init__(pageno, cfg, appdata, boatdata)
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def pol2cart(azimut, elevation):
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'''
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Polar to Cartesian coordinates within the horizon circle.
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azimuth in radians
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x = math.sin(azimut) * elevation * self.radius
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y = math.cos(azimut) * elevation * self.radius
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'''
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pass
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# (x, y) = self.pol2cart(sat.az, sat.el)
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def draw(self, ctx):
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# Name
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ctx.select_font_face("Ubuntu", cairo.FontSlant.NORMAL, cairo.FontWeight.BOLD)
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#ctx.set_font_size(32)
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#self.draw_text_center(ctx, 200, 40, "Satellite Info")
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# Spezialseite
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cx = 130
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cy = 150
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r = 125
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r1 = r / 2
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ctx.set_line_width(1.5)
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ctx.arc(cx, cy, r, 0, 2*math.pi)
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ctx.stroke()
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ctx.arc(cx, cy, r1, 0, 2*math.pi)
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ctx.stroke()
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ctx.set_dash([4, 4], 0)
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ctx.move_to(cx, cy - r)
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ctx.line_to(cx, cy + r)
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ctx.move_to(cx - r, cy)
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ctx.line_to(cx + r, cy)
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ctx.stroke()
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ctx.set_dash([], 0)
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# Signal/Noise Balken
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ctx.set_font_size(16)
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ctx.move_to(325, 34)
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ctx.show_text("SNR")
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ctx.stroke()
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ctx.set_line_width(1.5)
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ctx.rectangle(270, 20, 125, 257)
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# Beispieldaten
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ctx.set_line_width(0.5)
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for s in range(12):
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y = 30 + (s + 1) * 20
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ctx.move_to(275, y)
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ctx.show_text(f"{s:02d}")
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ctx.rectangle(305, y-12, 85, 14)
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ctx.stroke()
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ctx.set_line_width(1.0)
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for s in self.bd.sat.values():
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x = cx + math.sin(s.azimuth) * s.elevation * r
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y = cy + math.cos(s.azimuth) * s.elevation * r
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ctx.arc(x, y, 4, 0, 2*math.pi)
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ctx.move_to(x+4, y+4)
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ctx.show_text(f"{s.prn_num}")
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ctx.stroke()
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# Satellitenliste mit SNR-Balken sortiert nach nummer
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for prn_num in sorted(self.bd.sat):
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print(prn_num)
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