Question

我试图在pyqt5程序的主gui上显示图。一切正常，减去文件加载...

我有两个类，即App（主要）和PlotCanvas：

我使用Tkinter进行了相同的程序，并且效果很好，我试图将文件名解析为字符串，但是不起作用。需要帮助，我是新手...

处理打开的文件系统：

def openFileNameDialog(self):
        options = fd.Options()
        options |= fd.DontUseNativeDialog
        fileName = fd.getOpenFileName(self,"fd.getOpenFileName()", "/","All Files (*);;CSV Files (*.csv)", options=options)    
        new_file = fileName.__str__()

        myplot = PlotCanvas(self, width=5, height=4, dpi=100)
        myplot._plot(new_file)

然后是绘图方法：

def _plot(self, myselected_file):
        x = []
        y = []

        with open(myselected_file,'r') as csvfile:
            plots = csv.reader(csvfile, delimiter=';')
            for row in plots:
                x.append(double(row[0]))
                y.append(double(row[1]))   
            plt.plot(x,y, label='CSV')
            plt.xlabel('Tempo milisegundos')
            plt.ylabel('Vetor X do acelerometro')
            # plt.title('Salto 1 TEMPO x Vetor X')
            plt.legend()
            plt.draw()
        del x [:], y[:]

错误：

Traceback (most recent call last):
  File "/Users/diegomota/Projects/py_workspace/Athetech/gui/__main__.py", line 55, in on_click
    self.openFileNameDialog()   
  File "/Users/diegomota/Projects/py_workspace/Athetech/gui/__main__.py", line 51, in openFileNameDialog
    myplot._plot(new_file)
  File "/Users/diegomota/Projects/py_workspace/Athetech/gui/PlotCanvas.py", line 32, in _plot
    with open(myselected_file,'r') as csvfile:
FileNotFoundError: [Errno 2] No such file or directory: "('/Users/diegomota/Desktop/salto_1_1.csv', 'All Files (*)')"

无法从QFileDialog绘制CVS文件

0 个答案: