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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2016 Daniel Estevez <daniel@destevez.net>
#
# This file is part of gr-satellites
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
from gnuradio import gr
import numpy
import pmt
from .telemetry import gomx_3 as tlm
class adsb_kml(gr.basic_block):
"""docstring for block adsb_kml"""
def __init__(self):
gr.basic_block.__init__(
self,
name='adsb_kml',
in_sig=None,
out_sig=None)
self.message_port_register_in(pmt.intern('in'))
self.set_msg_handler(pmt.intern('in'), self.handle_msg)
def handle_msg(self, msg_pmt):
msg = pmt.cdr(msg_pmt)
if not pmt.is_u8vector(msg):
print('[ERROR] Received invalid message type. Expected u8vector')
return
packet = bytes(pmt.u8vector_elements(msg))
beacon = tlm.parse(packet)
# check that message is beacon
if (beacon.csp_header.destination != 10
or beacon.csp_header.destination_port != 30):
return
if beacon.csp_header.source != 1 or beacon.beacon_type != 0:
return
adsb = beacon.beacon.adsb
print("""<Placemark>
<name>{}</name>
<description>Altitude: {}ft Time: {}</description>
<styleUrl>#plane</styleUrl>
<Point><coordinates>{},{}</coordinates></Point>
</Placemark>""".format(
hex(adsb.last_icao),
adsb.last_alt,
adsb.last_time,
adsb.last_lon if adsb.last_lon <= 180 else adsb.last_lon - 360,
adsb.last_lat))
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