Path line between start and end points goes off map component.

[DriiGY]

After the two points (start and end) are chosen and consequently the path between them, this path if these are not visible within the map component the line goes off the map component and into the rest of the screen. ex:

The map was created in the home.kv:

Map:         
     id: main_map

And the points and line are created in:

 def points_line(self, *args):
        if self.my_pin and self.dest_pin:
            #print(self.my_pin.lat)
            #print(self.my_pin.lon)
            self.start_lon = self.my_pin.lon
            self.start_lat = self.my_pin.lat

            self.end_lon = self.dest_pin.lon
            self.end_lat = self.dest_pin.lat
            self.body = {"coordinates":[[self.start_lon, self.start_lat],[self.end_lon, self.end_lat]]}
            self.res1 = self.openrouteservice_request(self.body)

            for i in range(0, len(self.res1)-1, 2):
                # print('lat= ' + self.res1[i])
                # print('lon= ' + self.res1[i+1])

                self.points_lat = self.res1[i]
                self.points_lon = self.res1[i+1]

                self.points_pop = MapMarkerPopup(lat=self.points_lat, lon=self.points_lon, source='assets/imgs/waypoints.png')
                self.route_points.append(self.points_pop)
                #print(type(self.points_pop))
                self.ids.main_map.add_widget(self.points_pop)

            with self.canvas:
                Color(0.5, 0, 0 ,1)
                for j in range(0, len(self.route_points)-1, 1):
                    self.lines = Line(points=(self.route_points[j].pos[0],self.route_points[j].pos[1], self.route_points[j+1].pos[0],self.route_points[j+1].pos[1] ), width=3)
                    self.list_of_lines.append(self.lines)

            Clock.schedule_interval(self.update_route_lines, 1/50)

def update_route_lines(self, *args):
        for j in range(1, len(self.route_points), 1):
            self.list_of_lines[j-1].points = [self.route_points[j-1].pos[0],self.route_points[j-1].pos[1], self.route_points[j].pos[0], self.route_points[j].pos[1]]