139 lines
3.9 KiB
Python
139 lines
3.9 KiB
Python
from kivy.app import App
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from kivy.clock import Clock
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from kivy.uix.screenmanager import ScreenManager, Screen, RiseInTransition
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from kivy.properties import NumericProperty, StringProperty
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from kivy.lang import Builder
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from kivy_garden.mapview import MapView
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from plyer import gps
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from kivy.clock import mainthread
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from kivy.utils import platform
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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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hue = NumericProperty(0)
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mapview = MapView(zoom=11, lat=50.6394, lon=3.057)
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class CompassScreen(Screen):
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hue = NumericProperty(0)
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x_calib = NumericProperty(0)
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y_calib = NumericProperty(0)
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z_calib = NumericProperty(0)
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needle_angle = NumericProperty(0)
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def enable(self):
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self.facade.enable()
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Clock.schedule_interval(self.get_field, 1 / 20.)
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gps.start(1000, 0)
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def disable(self):
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self.facade.disable()
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Clock.unschedule(self.get_field)
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def get_field(self, dt):
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needle_angle = 7
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if self.facade.field != (None, None, None):
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self.x_calib, self.y_calib, self.z_calib = self.facade.field
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x, y, z = self.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._anim:
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self._anim.stop(self)
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self._anim = Animation(needle_angle=needle_angle, d=.2, t='out_quad')
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self._anim.start(self)
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class FlockompassApp(App):
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gps_location = StringProperty()
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gps_status = StringProperty('Click Start to get GPS location updates')
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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("callback. All permissions granted.")
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else:
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print("callback. Some permissions refused.")
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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 start(self, minTime, minDistance):
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gps.start(minTime, minDistance)
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def stop(self):
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gps.stop()
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def on_pause(self):
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gps.stop()
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return True
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def on_resume(self):
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gps.start(1000, 0)
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@mainthread
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def on_location(self, **kwargs):
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self.gps_location = '\n'.join([
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'{}={}'.format(k, v) for k, v in kwargs.items()])
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@mainthread
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def on_status(self, stype, status):
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self.gps_status = 'type={}\n{}'.format(stype, status)
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def build(self):
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try:
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gps.configure(on_location=self.on_location,
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on_status=self.on_status)
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except NotImplementedError:
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import traceback
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traceback.print_exc()
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self.gps_status = '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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root = ScreenManager(transition=RiseInTransition())
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root.add_widget(MapScreen(name='map'))
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cs = CompassScreen(name='compass')
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cs._anim = None
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root.add_widget(cs)
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return root
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if __name__ == '__main__':
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FlockompassApp().run()
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# Button:
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# text: 'Use FallOutTransition'
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# on_release: root.manager.transition = FallOutTransition()
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# Button:
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# text: 'Use RiseInTransition'
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# on_release: root.manager.transition = RiseInTransition()
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