plot.py 文件源码

def __init__(self, expr, var_start_end_x, var_start_end_y):
        super(ContourSeries, self).__init__()
        self.nb_of_points_x = 50
        self.nb_of_points_y = 50
        self.expr = sympify(expr)
        self.var_x = sympify(var_start_end_x[0])
        self.start_x = float(var_start_end_x[1])
        self.end_x = float(var_start_end_x[2])
        self.var_y = sympify(var_start_end_y[0])
        self.start_y = float(var_start_end_y[1])
        self.end_y = float(var_start_end_y[2])

        self.get_points = self.get_meshes