147 lines
4.3 KiB
Python
147 lines
4.3 KiB
Python
from plyer import gps
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from kivy.app import App
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from kivy.clock import Clock
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from kivy.properties import DictProperty, NumericProperty
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from kivy.clock import mainthread
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from kivy.utils import platform
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from kivy_garden.mapview import MapView
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from kivy.uix.screenmanager import ScreenManager, Screen, RiseInTransition
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from kivy.vector import Vector
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from kivy.animation import Animation
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from math import floor
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class MapScreen(Screen):
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pass
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class CompassScreen(Screen):
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pass
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class FlockompassApp(App):
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gps_data = DictProperty()
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session_data = DictProperty()
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needle_angle = NumericProperty(0)
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def dump(self, dt):
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print(dt, self.gps_data, self.session_data)
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def set_destination(self):
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self.compass_enable()
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self.session_data['dest_lat'] = self.ms.ids.centermark.lat
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self.session_data['dest_lon'] = self.ms.ids.centermark.lon
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self.ms.ids.mapview.center_on(self.session_data['dest_lat'],
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self.session_data['dest_lon'])
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def request_android_permissions(self):
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from android.permissions import request_permissions, Permission
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def callback(permissions, results):
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if all([res for res in results]):
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print("aguas: callback. All permissions granted.")
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else:
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print("aguas: callback. Some permissions refused.", results)
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request_permissions([Permission.ACCESS_COARSE_LOCATION,
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Permission.ACCESS_FINE_LOCATION],
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callback)
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def gps_start(self, minTime, minDistance):
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gps.start(minTime, minDistance)
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def gps_stop(self):
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gps.stop()
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@mainthread
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def on_location(self, **kwargs):
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self.gps_data = kwargs
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if ('dest_lat' not in self.session_data
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and
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'dest_lon' not in self.session_data):
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self.session_data['dest_lat'] = self.gps_data['lat']
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self.session_data['dest_lon'] = self.gps_data['lon']
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self.ms.ids.mapview.center_on(self.session_data['dest_lat'],
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self.session_data['dest_lon'])
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def get_field(self, dt):
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needle_angle = 7
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if self.cs.facade.field != (None, None, None):
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self.x_calib, self.y_calib, self.z_calib = self.cs.facade.field
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x, y, z = self.cs.facade.field
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needle_angle = Vector(x, y).angle((0, 1)) + 90.
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# fix animation transition around the unit circle
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if (self.needle_angle % 360) - needle_angle > 180:
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needle_angle += 360
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elif (self.needle_angle % 360) - needle_angle < -180:
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needle_angle -= 360
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# add the number of revolutions to the result
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needle_angle += 360 * floor(self.needle_angle / 360.)
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# animate the needle
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if self.cs._anim:
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self.cs._anim.stop(self)
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self.cs._anim = Animation(needle_angle=needle_angle, d=.2, t='out_quad')
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self.cs._anim.start(self)
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def compass_enable(self):
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self.cs.facade.enable()
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Clock.schedule_interval(self.get_field, 1 / 5.0)
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def compass_disable(self):
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self.cs.facade.disable()
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Clock.unschedule(self.get_field)
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def on_pause(self):
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self.compass_disable()
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self.gps_stop()
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return True
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def on_resume(self):
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self.compass_enable()
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self.gps_start(1000, 0)
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def build(self):
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# start GPS
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try:
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gps.configure(on_location=self.on_location)
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except NotImplementedError:
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import traceback
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traceback.print_exc()
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print('GPS is not implemented for your platform')
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if platform == "android":
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print("gps.py: Android detected. Requesting permissions")
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self.request_android_permissions()
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self.gps_start(1000, 0)
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# setup app screens
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screen_manager = ScreenManager(transition=RiseInTransition())
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self.ms = MapScreen(name='map')
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screen_manager.add_widget(self.ms)
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self.cs = CompassScreen(name='compass')
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self.cs._anim = None
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self.cs.p = None
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screen_manager.add_widget(self.cs)
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Clock.schedule_interval(self.dump, 2.0)
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return screen_manager
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if __name__ == '__main__':
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app = FlockompassApp()
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app.run()
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