Method f

plotly/figure_factory/_streamline.py:204–208

(xi, yi)

        """

        def f(xi, yi):
            dt_ds = 1.0 / self.value_at(self.speed, xi, yi)
            ui = self.value_at(self.u, xi, yi)
            vi = self.value_at(self.v, xi, yi)
            return ui * dt_ds, vi * dt_ds

        def g(xi, yi):
            dt_ds = 1.0 / self.value_at(self.speed, xi, yi)