Method blank_pos

plotly/figure_factory/_streamline.py:170–174

Set up positions for trajectories to be used with rk4 function.

(self, xi, yi)

        arrows_x, arrows_y = self.get_streamline_arrows()

    def blank_pos(self, xi, yi):
        """
        Set up positions for trajectories to be used with rk4 function.
        """
        return (int((xi / self.spacing_x) + 0.5), int((yi / self.spacing_y) + 0.5))

    def value_at(self, a, xi, yi):
        """