def get_label(key, extra):
code, sat, ch = key
lbl = 'Ch {ch:02d}: {code} '.format(ch=ch, code=code_to_str(code))
if code_is_glo(code):
lbl += 'F{sat:0=+3d}'.format(sat=sat)
if ch in extra:
lbl += ' R{slot:02d}'.format(slot=extra[ch])
elif code_is_sbas(code):
lbl += 'S{sat:3d}'.format(sat=sat)
elif code_is_bds(code):
lbl += 'C{sat:02d}'.format(sat=sat)
elif code_is_qzss(code):
lbl += 'J{sat:3d}'.format(sat=sat)
elif code_is_galileo(code):
lbl += 'E{sat:02d}'.format(sat=sat)
else:
lbl += 'G{sat:02d}'.format(sat=sat)
return lbl
def azel_callback(self, sbp_msg, **metadata):
svazelmsg = MsgSvAzEl(sbp_msg)
tracked = self._trk_view.get_tracked_sv_labels()
pending_update = {
'x_gps': [],
'x_glo': [],
'x_gal': [],
'x_bds': [],
'x_qzss': [],
'x_sbas': [],
'y_gps': [],
'y_glo': [],
'y_gal': [],
'y_bds': [],
'y_qzss': [],
'y_sbas': []
}
# store new label updates, and display at once
overlay_update = []
for azel in svazelmsg.azel:
sid = azel.sid
az = azel.az * 2
el = azel.el
x, y = self.azel_to_xy(az, el)
sat_string = ""
if code_is_gps(sid.code) and self.gps_visible:
pending_update['x_gps'].append(x)
pending_update['y_gps'].append(y)
elif code_is_glo(sid.code) and self.glo_visible:
pending_update['x_glo'].append(x)
pending_update['y_glo'].append(y)
elif code_is_galileo(sid.code) and self.gal_visible:
pending_update['x_gal'].append(x)
pending_update['y_gal'].append(y)
elif code_is_bds(sid.code) and self.bds_visible:
pending_update['x_bds'].append(x)
pending_update['y_bds'].append(y)
elif code_is_qzss(sid.code) and self.qzss_visible:
pending_update['x_qzss'].append(x)
pending_update['y_qzss'].append(y)
elif code_is_sbas(sid.code) and self.sbas_visible:
pending_update['x_sbas'].append(x)
pending_update['y_sbas'].append(y)
sat_string = get_label((sid.code, sid.sat))[2]
if sat_string in tracked:
sat_string += TRK_SIGN
label = DataLabel(component=self.plot,
data_point=(x, y),
label_text=sat_string,
label_position="bottom right",
border_visible=False,
bgcolor="transparent",
marker_visible=False,
font='modern 14',
arrow_visible=False,
show_label_coords=False)
overlay_update.append(label)
# display label updates
self.plot.overlays = (self.axis_overlays + overlay_update +
self.default_overlays)
self.plot_data.update(pending_update)