python - 我们可以在kivy中使用matplotlib.animation吗？如果是，如何？

Question

嗯，这个How to use matplotlib animation within kivy问题很相似，但答案根本没有值(value)另外，正如 @ImportanceOfBeingErnest 所指出的，我将问题编辑为“我们真的可以这样做吗？如果是，则继续下面的操作。

”

所以根据以下教程在 tkinter 中添加动画很容易 Sentdex tutorial on how to add matplotlib animation in tkinter

我尝试在 kivy 中执行相同的操作，但无法弄清楚在哪里编写该行 ani=animation.Funcanimation(blabla) 请参阅以下代码中的最后一行

class Graph(FigureCanvasKivyAgg):
    def __init__(self,*args,**kwargs):
        FigureCanvasKivyAgg.__init__(self,f)
        pullData = open("TimeLatitude.txt", "r").read()
        dataList = pullData.split('\n')
        xList = []
        yList = []
        pullData2 = open("TimeLongitude.txt", "r").read()
        dataList2 = pullData2.split('\n')
        xList2 = []
        yList2 = []
        for eachLine in dataList:
            if len(eachLine) > 1:
                x, y = eachLine.split(',')
                xList.append(int(x))
                yList.append(int(y))
        for eachLine in dataList2:
            if len(eachLine) > 1:
                x, y = eachLine.split(',')
                xList2.append(int(x))
                yList2.append(int(y))
        a.clear()
        a.plot(xList, yList, "#00A3E0", label="Latitude")
        a.plot(xList2, yList2, "#183A54", label="Longitude")
        a.legend(bbox_to_anchor=(0, 1.02, 1, .102), loc=3,
                 ncol=2, borderaxespad=0)
        title = "Oxymora Mars Rover Geographic Points\nLast Longitude : " + str(
            yList2[len(yList2) - 1]) + "\nLast Latitude : " + str(yList[len(yList) - 1])
        a.set_title(title)
        ani = animation.FuncAnimation(f, animate, interval=1000)

Answer 1

我认为现在 kivy 的使用较少。没有人回答所以我以某种方式找到了我想要实现的目标的替代方案。我添加了一个刷新按钮，它再次运行整个功能，其中包括从文件中获取值并再次绘制图表。因此，每当文件中的值更新时，我们都会得到一个绘图。

这是 python 3 代码。

class Graph(FigureCanvasKivyAgg):
    def __init__(self,*args,**kwargs):
        FigureCanvasKivyAgg.__init__(self,f)
        pullData = open("TimeLatitude.txt", "r").read()
        dataList = pullData.split('\n')
        xList = []
        yList = []
        pullData2 = open("TimeLongitude.txt", "r").read()
        dataList2 = pullData2.split('\n')
        xList2 = []
        yList2 = []
        for eachLine in dataList:
            if len(eachLine) > 1:
                x, y = eachLine.split(',')
                xList.append(int(x))
                yList.append(int(y))
        for eachLine in dataList2:
            if len(eachLine) > 1:
                x, y = eachLine.split(',')
                xList2.append(int(x))
                yList2.append(int(y))
        a.plot(xList, yList, "#00A3E0", label="Latitude")
        a.plot(xList2, yList2, "#183A54", label="Longitude")
        a.legend(bbox_to_anchor=(0, 1.02, 1, .102), loc=3,
             ncol=2, borderaxespad=0)
        title = "Oxymora Mars Rover Coordinates\nLast Longitude : " + str(
            yList2[len(yList2) - 1]) + "\nLast Latitude : " + str(yList[len(yList) - 1])
        a.set_title(title)
    def animate(self):
        pullData = open("TimeLatitude.txt", "r").read()
        dataList = pullData.split('\n')
        xList = []
        yList = []
        pullData2 = open("TimeLongitude.txt", "r").read()
        dataList2 = pullData2.split('\n')
        xList2 = []
        yList2 = []
        for eachLine in dataList:
            if len(eachLine) > 1:
                x, y = eachLine.split(',')
                xList.append(int(x))
                yList.append(int(y))
        for eachLine in dataList2:
            if len(eachLine) > 1:
                x, y = eachLine.split(',')
                xList2.append(int(x))
                yList2.append(int(y))
        a.clear()
        a.plot(xList, yList, "#00A3E0", label="Latitude")
        a.plot(xList2, yList2, "#183A54", label="Longitude")
        a.legend(bbox_to_anchor=(0, 1.02, 1, .102), loc=3,
                 ncol=2, borderaxespad=0)
        title = "Oxymora Mars Rover Coordinates\nLast Longitude : " + str(
            yList2[len(yList2) - 1]) + "\nLast Latitude : " + str(yList[len(yList) - 1])
        a.set_title(title)
        self.draw()

这是相应的 kivy 代码。

<MainScreen>:
    name: "main"
    FloatLayout:
        Graph
            id:gr
        Button:
            on_release: gr.animate()
            text: "Refresh"
            font_size: 15
            size_hint:0.068,0.05
            pos_hint: {"x":0,"top":0.8}
            color: 1,0,1,1

最后，在运行我的完整代码后，kivy 应用程序看起来像这样 - Kivy application image