kivy - 增加 Kivy 中 MeshLinePlot 的线宽？

Question

有谁知道如何在 Kivy 中增加 MeshLinePlot 的线宽？

谢谢

更新

我从@Ikolim 那里得到了关于修改 kivy.graph 中的 LinePLot 函数的答案

class LinePlot(Plot):
'''LinePlot draws using a standard Line object.
'''

'''Args:
line_width (float) - the width of the graph line
'''

def __init__(self, line_width=1, **kwargs):
    self._line_width = line_width  # instead of kwargs.get('line_width', 1)
    super(LinePlot, self).__init__(**kwargs)

Answer 1

基于 Kivy garden.graph 的方法 __init__ https://github.com/kivy-garden/garden.graph/blob/master/init.py , MeshLinePlot 目前不支持线宽。但是 LinePlot 确实支持线宽。

片段

    self.plot = LinePlot(line_width=4, color=[1, 0, 0, 1])

例子

主.py

import kivy
kivy.require("1.10.0")

from kivy.app import App
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout

from kivy.garden.graph import Graph, MeshLinePlot, MeshStemPlot, LinePlot, SmoothLinePlot, ContourPlot
import matplotlib.pyplot as plt
from kivy.garden.matplotlib.backend_kivyagg import FigureCanvas
from kivy.utils import get_color_from_hex as rgb
from numpy import sin


kv = """
<GraphCustom>:

<Test>:
    orientation: 'vertical'
    GraphCustom:
        size: self.parent.size
        pos: self.parent.pos
"""

Builder.load_string(kv)


class GraphCustom(Graph):
    def __init__(self, **kwargs):
        super(GraphCustom, self).__init__(**kwargs)
        self.label_options = {'color': rgb('#FF0000'), 'bold': True}
        self.background_color = rgb('f8f8f2')
        self.tick_color = rgb('808080')
        self.border_color = rgb('808080')
        self.xlabel = 'X'
        self.ylabel = 'Y'
        self.x_ticks_minor = 5
        self.x_ticks_major = 25
        self.y_ticks_major = 1
        self.y_grid_label = True
        self.x_grid_label = True
        self.padding = 5
        self.x_grid = True
        self.y_grid = True
        self.xmin = -0
        self.xmax = 100
        self.ymin = -1
        self.ymax = 1
        self.stop = False

        self.plot = LinePlot(line_width=4, color=[1, 0, 0, 1])
        self.plot.points = [(x, sin(x / 10.)) for x in range(0, 101)]
        self.add_plot(self.plot)


class Test(BoxLayout):
    def __init__(self, *args, **kwargs):
        super(Test, self).__init__(*args, **kwargs)
        fig1 = plt.figure()
        ax1 = fig1.add_subplot(111)
        wid = FigureCanvas(fig1)
        self.add_widget(wid)


class TestApp(App):
    title = "Kivy Garden Graph - LinePlot Demo"

    def build(self):
        return Test()


if __name__ == '__main__':
    TestApp().run()

输出