更改轴标签

Question

我正在编写一个kivy应用程序，并且在更改x轴标签的值时遇到问题。我正在使用MeshLinePlot，我相信它应该接受x_axis和x_label作为列表。我已经包含了kivy.garden.graph基本的sin曲线代码。如果有人可以告诉我如何将x轴值更改为“ A”，“ B”，“ C”，“ D”。非常感谢。

from kivy.app import App
from kivy.garden.graph import Graph, MeshLinePlot
from kivy.uix.boxlayout import BoxLayout
from math import sin

class Grapher(BoxLayout):
    def __init__(self, **kwargs):
        super(Grapher, self).__init__(**kwargs)
        self.size_hint=(1, 1)
        self.orientation = 'vertical'
        self.add_widget(self.graf())

    def graf(self):
        graph = Graph(xlabel='X', ylabel='Y', x_ticks_minor=5,
                      x_ticks_major=25, y_ticks_major=1,
                      y_grid_label=True, x_grid_label=True, padding=5,
                      x_grid=True, y_grid=True, xmin=-0, xmax=100, ymin=-1, ymax=1)
        plot = MeshLinePlot(color=[1, 0, 0, 1])
        plot.points = [(x, sin(x / 10.)) for x in range(0, 101)]
        graph.add_plot(plot)
        return graph



class myGraphApp(App):

    def build(self):
        return Grapher()

if __name__ == "__main__":
    myGraphApp().run()