kopia lustrzana https://github.com/ctjacobs/pyqso
218 wiersze
9.5 KiB
Python
218 wiersze
9.5 KiB
Python
|
#!/usr/bin/env python3
|
||
|
|
||
|
# Copyright (C) 2013-2018 Christian Thomas Jacobs.
|
||
|
|
||
|
# This file is part of PyQSO.
|
||
|
|
||
|
# PyQSO is free software: you can redistribute it and/or modify
|
||
|
# it under the terms of the GNU General Public License as published by
|
||
|
# the Free Software Foundation, either version 3 of the License, or
|
||
|
# (at your option) any later version.
|
||
|
#
|
||
|
# PyQSO is distributed in the hope that it will be useful,
|
||
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
# GNU General Public License for more details.
|
||
|
#
|
||
|
# You should have received a copy of the GNU General Public License
|
||
|
# along with PyQSO. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
||
|
from gi.repository import GObject
|
||
|
import logging
|
||
|
from os.path import expanduser
|
||
|
from datetime import datetime
|
||
|
try:
|
||
|
import configparser
|
||
|
except ImportError:
|
||
|
import ConfigParser as configparser
|
||
|
try:
|
||
|
import numpy
|
||
|
logging.info("Using version %s of numpy." % (numpy.__version__))
|
||
|
import matplotlib
|
||
|
logging.info("Using version %s of matplotlib." % (matplotlib.__version__))
|
||
|
import cartopy
|
||
|
logging.info("Using version %s of cartopy." % (cartopy.__version__))
|
||
|
from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas
|
||
|
have_necessary_modules = True
|
||
|
except ImportError as e:
|
||
|
logging.warning(e)
|
||
|
logging.warning("Could not import a non-standard Python module needed by the WorldMap class, or the version of the non-standard module is too old. Check that all the PyQSO dependencies are satisfied.")
|
||
|
have_necessary_modules = False
|
||
|
try:
|
||
|
import geocoder
|
||
|
have_geocoder = True
|
||
|
except ImportError:
|
||
|
logging.warning("Could not import the geocoder module!")
|
||
|
have_geocoder = False
|
||
|
|
||
|
|
||
|
class Point:
|
||
|
""" A point on the grey line map. """
|
||
|
def __init__(self, name, latitude, longitude, style="yo"):
|
||
|
""" Set up the point's attributes.
|
||
|
|
||
|
:arg str name: The name that identifies the point.
|
||
|
:arg float latitude: The latitude of the point on the map.
|
||
|
:arg float longitude: The longitude of the point on the map.
|
||
|
:arg str style: The style of the point when plotted. By default it is a filled yellow circle.
|
||
|
"""
|
||
|
|
||
|
self.name = name
|
||
|
self.latitude = latitude
|
||
|
self.longitude = longitude
|
||
|
self.style = style
|
||
|
return
|
||
|
|
||
|
|
||
|
class WorldMap:
|
||
|
|
||
|
""" A tool for visualising the world map. """
|
||
|
|
||
|
def __init__(self, application):
|
||
|
""" Set up the drawing canvas and the timer which will re-plot the world map every 30 minutes.
|
||
|
|
||
|
:arg application: The PyQSO application containing the main Gtk window, etc.
|
||
|
"""
|
||
|
logging.debug("Setting up the world map...")
|
||
|
|
||
|
self.application = application
|
||
|
self.builder = self.application.builder
|
||
|
self.points = []
|
||
|
|
||
|
if(have_necessary_modules):
|
||
|
self.fig = matplotlib.figure.Figure()
|
||
|
self.canvas = FigureCanvas(self.fig) # For embedding in the Gtk application
|
||
|
self.builder.get_object("worldmap").pack_start(self.canvas, True, True, 0)
|
||
|
self.refresh_event = GObject.timeout_add(1800000, self.draw) # Re-draw the world map automatically after 30 minutes (if the world map tool is visible).
|
||
|
|
||
|
# Add the QTH coordinates for plotting, if available.
|
||
|
config = configparser.ConfigParser()
|
||
|
have_config = (config.read(expanduser('~/.config/pyqso/preferences.ini')) != [])
|
||
|
(section, option) = ("general", "show_qth")
|
||
|
if(have_config and config.has_option(section, option)):
|
||
|
if(config.getboolean(section, option)):
|
||
|
try:
|
||
|
qth_name = config.get("general", "qth_name")
|
||
|
qth_latitude = float(config.get("general", "qth_latitude"))
|
||
|
qth_longitude = float(config.get("general", "qth_longitude"))
|
||
|
self.add_point(qth_name, qth_latitude, qth_longitude, "ro")
|
||
|
except ValueError:
|
||
|
logging.warning("Unable to get the QTH name, latitude and/or longitude. The QTH will not be pinpointed on the world map. Check preferences?")
|
||
|
|
||
|
self.builder.get_object("worldmap").show_all()
|
||
|
|
||
|
logging.debug("World map ready!")
|
||
|
|
||
|
return
|
||
|
|
||
|
def add_point(self, name, latitude, longitude, style="yo"):
|
||
|
""" Add a point and re-draw the map.
|
||
|
|
||
|
:arg str name: The name that identifies the point.
|
||
|
:arg float latitude: The latitude of the point on the map.
|
||
|
:arg float longitude: The longitude of the point on the map.
|
||
|
:arg str style: The style of the point when plotted. By default it is a filled yellow circle.
|
||
|
"""
|
||
|
p = Point(name, latitude, longitude, style)
|
||
|
self.points.append(p)
|
||
|
self.draw()
|
||
|
return
|
||
|
|
||
|
def pinpoint(self, r):
|
||
|
""" Pinpoint the location of a QSO on the world map based on the COUNTRY field.
|
||
|
|
||
|
:arg r: The QSO record containing the location to pinpoint.
|
||
|
"""
|
||
|
|
||
|
if(have_geocoder):
|
||
|
country = r["COUNTRY"]
|
||
|
callsign = r["CALL"]
|
||
|
|
||
|
# Get the latitude-longitude coordinates of the country.
|
||
|
if(country):
|
||
|
try:
|
||
|
g = geocoder.google(country)
|
||
|
latitude, longitude = g.latlng
|
||
|
logging.debug("QTH coordinates found: (%s, %s)", str(latitude), str(longitude))
|
||
|
self.add_point(callsign, latitude, longitude)
|
||
|
except ValueError:
|
||
|
logging.exception("Unable to lookup QTH coordinates.")
|
||
|
except Exception:
|
||
|
logging.exception("Unable to lookup QTH coordinates. Check connection to the internets? Lookup limit reached?")
|
||
|
|
||
|
return
|
||
|
|
||
|
def draw(self):
|
||
|
""" Draw the world map and the grey line on top of it.
|
||
|
|
||
|
:returns: Always returns True to satisfy the GObject timer, unless the necessary WorldMap dependencies are not satisfied (in which case, the method returns False so as to not re-draw the canvas).
|
||
|
:rtype: bool
|
||
|
"""
|
||
|
|
||
|
if(have_necessary_modules):
|
||
|
toolbox = self.builder.get_object("toolbox")
|
||
|
tools = self.builder.get_object("tools")
|
||
|
if(tools.get_current_page() != 1 or not toolbox.get_visible()):
|
||
|
# Don't re-draw if the world map is not visible.
|
||
|
return True # We need to return True in case this is method was called by a timer event.
|
||
|
else:
|
||
|
# Set up the world map.
|
||
|
logging.debug("Drawing the world map...")
|
||
|
self.fig.clf()
|
||
|
ax = self.fig.add_subplot(111, projection=cartopy.crs.PlateCarree())
|
||
|
ax.set_extent([-180, 180, -90, 90])
|
||
|
ax.set_aspect("auto")
|
||
|
|
||
|
gl = ax.gridlines(draw_labels=True)
|
||
|
gl.xlabels_top = False
|
||
|
gl.ylabels_right = False
|
||
|
gl.xformatter = cartopy.mpl.gridliner.LONGITUDE_FORMATTER
|
||
|
gl.yformatter = cartopy.mpl.gridliner.LATITUDE_FORMATTER
|
||
|
ax.add_feature(cartopy.feature.LAND, facecolor="green")
|
||
|
ax.add_feature(cartopy.feature.OCEAN, color="skyblue")
|
||
|
ax.add_feature(cartopy.feature.COASTLINE)
|
||
|
ax.add_feature(cartopy.feature.BORDERS, alpha=0.4)
|
||
|
|
||
|
# Draw the grey line. This is based on the code from the Cartopy Aurora Forecast example (http://scitools.org.uk/cartopy/docs/latest/gallery/aurora_forecast.html) and used under the Open Government Licence (http://scitools.org.uk/cartopy/docs/v0.15/copyright.html).
|
||
|
logging.debug("Drawing the grey line...")
|
||
|
dt = datetime.utcnow()
|
||
|
axial_tilt = 23.5
|
||
|
reference_solstice = datetime(2016, 6, 21, 22, 22)
|
||
|
days_per_year = 365.2425
|
||
|
seconds_per_day = 86400.0
|
||
|
|
||
|
days_since_reference = (dt - reference_solstice).total_seconds()/seconds_per_day
|
||
|
latitude = axial_tilt*numpy.cos(2*numpy.pi*days_since_reference/days_per_year)
|
||
|
seconds_since_midnight = (dt - datetime(dt.year, dt.month, dt.day)).seconds
|
||
|
longitude = -(seconds_since_midnight/seconds_per_day - 0.5)*360
|
||
|
|
||
|
pole_longitude = longitude
|
||
|
if latitude > 0:
|
||
|
pole_latitude = -90 + latitude
|
||
|
central_rotated_longitude = 180
|
||
|
else:
|
||
|
pole_latitude = 90 + latitude
|
||
|
central_rotated_longitude = 0
|
||
|
|
||
|
rotated_pole = cartopy.crs.RotatedPole(pole_latitude=pole_latitude, pole_longitude=pole_longitude, central_rotated_longitude=central_rotated_longitude)
|
||
|
|
||
|
x = numpy.empty(360)
|
||
|
y = numpy.empty(360)
|
||
|
x[:180] = -90
|
||
|
y[:180] = numpy.arange(-90, 90.)
|
||
|
x[180:] = 90
|
||
|
y[180:] = numpy.arange(90, -90., -1)
|
||
|
|
||
|
ax.fill(x, y, transform=rotated_pole, color="black", alpha=0.5)
|
||
|
|
||
|
# Plot points on the map.
|
||
|
if(self.points):
|
||
|
logging.debug("Plotting QTHs on the map...")
|
||
|
for p in self.points:
|
||
|
ax.plot(p.longitude, p.latitude, p.style, transform=cartopy.crs.PlateCarree())
|
||
|
ax.text(p.longitude+0.02*p.longitude, p.latitude+0.02*p.latitude, p.name, color="white", size="small", weight="bold")
|
||
|
|
||
|
return True
|
||
|
else:
|
||
|
return False # Don't try to re-draw the canvas if the necessary modules to do so could not be imported.
|