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earthsunmoon.py
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earthsunmoon.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
EarthSunMoon
-------------------
begin : 2021-06-06
***************************************************************************/
/***************************************************************************
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
from qgis.PyQt.QtCore import Qt, QUrl
from qgis.PyQt.QtGui import QIcon
from qgis.PyQt.QtWidgets import QAction, QMessageBox
from qgis.core import QgsApplication
import processing
# Check to see if the TimeZoneFinder and Skyfield libraries are installed
# If not display a message that they need to be installed first
# import traceback
try:
from timezonefinder import TimezoneFinder
from skyfield.api import wgs84
from jplephem.spk import SPK
from .functions import InitFunctions, UnloadFunctions
libraries_found = True
except Exception:
# traceback.print_exc()
libraries_found = False
import os
from .utils import settings, SettingsWidget
class EarthSunMoon(object):
solarInfoDialog = None
ephemInfoDialog = None
settingsDialog = None
def __init__(self, iface):
self.iface = iface
self.canvas = iface.mapCanvas()
# Make sure the path to the ephemeris file exists
path = settings.ephemDir()
# if path doesn't exist, make it
if not os.path.exists(path):
os.makedirs(path)
# If the default ephemeris is not in the EarthSunMoon directory copy it to there.
default_ephem_path = settings.defaultEphemPath()
if not os.path.exists(default_ephem_path):
from shutil import copyfile
src = os.path.join(os.path.dirname(__file__), 'data', settings.defaultEphemFile())
copyfile(src, default_ephem_path)
if libraries_found:
from .provider import EarthSunMoonProvider
self.provider = EarthSunMoonProvider()
else:
from .provider_limited import EarthSunMoonProvider
self.provider = EarthSunMoonProvider()
def initGui(self):
self.toolbar = self.iface.addToolBar('Earth/Sun/Moon Toolbar')
self.toolbar.setObjectName('EarthSunMoonToolbar')
icon = QIcon(os.path.dirname(__file__) + "/icons/daynight.png")
self.dayNightAction = QAction(icon, "Day/Night terminator", self.iface.mainWindow())
self.dayNightAction.triggered.connect(self.dayNight)
self.iface.addPluginToMenu("Earth, sun, moon && planets", self.dayNightAction)
self.toolbar.addAction(self.dayNightAction)
icon = QIcon(os.path.dirname(__file__) + "/icons/sun_icon.svg")
self.sunPositionAction = QAction(icon, "Sun position directly overhead", self.iface.mainWindow())
self.sunPositionAction.triggered.connect(self.sunPosition)
self.iface.addPluginToMenu("Earth, sun, moon && planets", self.sunPositionAction)
self.toolbar.addAction(self.sunPositionAction)
if libraries_found:
icon = QIcon(os.path.dirname(__file__) + "/icons/moon.png")
self.moonPositionAction = QAction(icon, "Moon position directly overhead", self.iface.mainWindow())
self.moonPositionAction.triggered.connect(self.moonPosition)
self.iface.addPluginToMenu("Earth, sun, moon && planets", self.moonPositionAction)
self.toolbar.addAction(self.moonPositionAction)
icon = QIcon(os.path.dirname(__file__) + "/icons/venus.png")
self.planetsAction = QAction(icon, "Planetary positions directly overhead", self.iface.mainWindow())
self.planetsAction.triggered.connect(self.planetPositions)
self.iface.addPluginToMenu("Earth, sun, moon && planets", self.planetsAction)
self.toolbar.addAction(self.planetsAction)
icon = QIcon(os.path.dirname(__file__) + "/icons/info.svg")
self.solarInfoAction = QAction(icon, "Solar/lunar information", self.iface.mainWindow())
self.solarInfoAction.triggered.connect(self.solarInfo)
self.iface.addPluginToMenu("Earth, sun, moon && planets", self.solarInfoAction)
self.toolbar.addAction(self.solarInfoAction)
# Selected ephemeris information
icon = QIcon(os.path.dirname(__file__) + "/icons/ephem.svg")
self.ephemAction = QAction(icon, "Ephemeris information", self.iface.mainWindow())
self.ephemAction.triggered.connect(self.ephemInfo)
self.iface.addPluginToMenu('Earth, sun, moon && planets', self.ephemAction)
else:
icon = QIcon(":images/themes/default/mIndicatorBadLayer.svg")
self.requirementsActions = QAction(icon, "Install python libraries for more capabilities", self.iface.mainWindow())
self.requirementsActions.triggered.connect(self.requirements)
self.iface.addPluginToMenu("Earth, sun, moon && planets", self.requirementsActions)
# Settings
icon = QIcon(':/images/themes/default/mActionOptions.svg')
self.settingsAction = QAction(icon, 'Settings', self.iface.mainWindow())
self.settingsAction.triggered.connect(self.settings)
self.iface.addPluginToMenu('Earth, sun, moon && planets', self.settingsAction)
# Help
icon = QIcon(os.path.dirname(__file__) + '/icons/help.svg')
self.helpAction = QAction(icon, "Help", self.iface.mainWindow())
self.helpAction.triggered.connect(self.help)
self.iface.addPluginToMenu('Earth, sun, moon && planets', self.helpAction)
# Add the processing provider
QgsApplication.processingRegistry().addProvider(self.provider)
if libraries_found:
InitFunctions()
def unload(self):
"""Remove the plugin menu item and icon from QGIS GUI."""
self.iface.removePluginMenu('Earth, sun, moon && planets', self.dayNightAction)
self.iface.removeToolBarIcon(self.dayNightAction)
self.iface.removePluginMenu('Earth, sun, moon && planets', self.sunPositionAction)
self.iface.removeToolBarIcon(self.sunPositionAction)
if libraries_found:
self.iface.removePluginMenu('Earth, sun, moon && planets', self.moonPositionAction)
self.iface.removeToolBarIcon(self.moonPositionAction)
self.iface.removePluginMenu('Earth, sun, moon && planets', self.planetsAction)
self.iface.removeToolBarIcon(self.planetsAction)
self.iface.removePluginMenu('Earth, sun, moon && planets', self.solarInfoAction)
self.iface.removeToolBarIcon(self.solarInfoAction)
self.iface.removePluginMenu('Earth, sun, moon && planets', self.ephemAction)
if self.solarInfoDialog:
self.iface.removeDockWidget(self.solarInfoDialog)
self.solarInfoDialog = None
else:
self.iface.removePluginMenu('Earth, sun, moon && planets', self.requirementsActions)
self.iface.removePluginMenu('Earth, sun, moon && planets', self.settingsAction)
self.iface.removePluginMenu('Earth, sun, moon && planets', self.helpAction)
del self.toolbar
QgsApplication.processingRegistry().removeProvider(self.provider)
if libraries_found:
UnloadFunctions()
def requirements(self):
message = '''
<p>Enhance this plugin with the <a href="https://timezonefinder.readthedocs.io/en/latest/">TimeZoneFinder</a> and <a href="https://rhodesmill.org/skyfield/">Skyfiled</a> libraries.<br/><br/>
These libraries can be installed by running the OSGeo4W shell and running 'pip install skyfield timezonefinder' or whatever method you use to install python packages.<p>
<p>Once the libraries are installed, please restart QGIS.</p>
'''
QMessageBox.information(self.iface.mainWindow(), 'How to enhance this plugin', message)
def sunPosition(self):
processing.execAlgorithmDialog('earthsunmoon:sunposition', {})
def moonPosition(self):
processing.execAlgorithmDialog('earthsunmoon:moonposition', {})
def dayNight(self):
processing.execAlgorithmDialog('earthsunmoon:daynightterminator', {})
def planetPositions(self):
processing.execAlgorithmDialog('earthsunmoon:planetpositions', {})
def solarInfo(self):
if not self.solarInfoDialog:
from .infoDialog import SolarInfoDialog
self.solarInfoDialog = SolarInfoDialog(self.iface, self.iface.mainWindow())
# self.solarInfoDialog.setFloating(True)
self.iface.addDockWidget(Qt.RightDockWidgetArea, self.solarInfoDialog)
self.solarInfoDialog.show()
def ephemInfo(self):
if not self.ephemInfoDialog:
from .ephemInfo import EphemerisInfo
self.ephemInfoDialog = EphemerisInfo(self.iface, self.iface.mainWindow())
self.ephemInfoDialog.show()
def settings(self):
if self.settingsDialog is None:
self.settingsDialog = SettingsWidget(self.iface, self.iface.mainWindow())
self.settingsDialog.show()
def help(self):
'''Display a help page'''
import webbrowser
url = QUrl.fromLocalFile(os.path.dirname(__file__) + "/index.html").toString()
webbrowser.open(url, new=2)