Python pyqtgraph:调用PlotDataItem.setData会给出TypeError:PySide.QtCore.QPointF.\uu添加\uuuuuuuuuu使用错误的参数类型调用

背景

• 我正在使用

  pyqtgraph

  制作一个交互式程序，用于绘制和分析一些数据

• 相关事物的版本：
  • PySide版本1.2.1

    from PySide import QtGui, QtCore
    

  • pyqtgraph

    0.9.10版（目前最新版本）：
    其中：

            from numpy import r_
            self.baseTimeBoxX = r_[0.0,0.0,100.0,100.0,0.0]
            self.baseTimeBoxY = r_[-1.0,1.0,1.0,-1.0,-1.0]
    

  • 因此，

    self.w.timeBox

    是

    pyqtgraph.graphicsItems.PlotDataItem.PlotDataItem

  • 当用户单击绘图时，我只想在X方向上移动长方体。为此，我计算出

    clickedXCoord

    ，将其添加到self.baseTimeBoxX，现在想更新

    self.w.timeBox

    以使用这些x坐标。为此，我打电话

    self.w.timeBox.setData(
        x=(clickedXCoord+self.baseTimeBoxX),
        y=self.baseTimeBoxY
    )
    

  问题
  这是我得到的回溯：

   Traceback (most recent call last):
    File "doesntMatter.py", line <whatever>, in _moveTimeBox
      self.w.timeBox.setData(x=(clickedXCoord+self.baseTimeBoxX),y=self.baseTimeBoxY)
  TypeError: 'PySide.QtCore.QPointF.__add__' called with wrong argument types:
    PySide.QtCore.QPointF.__add__(numpy.ndarray)
  Supported signatures:
    PySide.QtCore.QPointF.__add__(PySide.QtCore.QPointF)
  

  我基本上犯了同样的错误

---

回溯看起来非常清晰：您只能向另一个

QPointF

@ekhumoro添加一个回溯。回溯比我见过的一些回溯更清晰，但我不想向QPointF添加任何内容。根据文档，setData方法采用与

\uuuuu init\uuuuu

方法相同的参数，我所做的调用完全有效。我没有直接调用QPointF。uuu add_uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu。错误发生在

doesntMatter.py

中，而不是在定义

setData

的任何地方。愚蠢的我，我是在给

self.baseTimeBoxX

添加一个QPointF，而不仅仅是一个标量。谢谢，ekhumoro。回溯看起来很清楚：你只能在另一个

QPointF

@ekhumoro中添加一个。回溯比我见过的一些更清楚，但我不想在QPointF中添加任何内容。根据文档，setData方法采用与

\uuuuu init\uuuuu

方法相同的参数，我所做的调用完全有效。我没有直接调用QPointF。uuu add_uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu。错误发生在

doesntMatter.py

中，而不是在定义

setData

的任何地方。愚蠢的我，我是在给

self.baseTimeBoxX

添加一个QPointF，而不仅仅是一个标量。谢谢你，埃克胡洛。

self.w.timeBox.setData(
    x=(clickedXCoord+self.baseTimeBoxX),
    y=self.baseTimeBoxY
)

 Traceback (most recent call last):
  File "doesntMatter.py", line <whatever>, in _moveTimeBox
    self.w.timeBox.setData(x=(clickedXCoord+self.baseTimeBoxX),y=self.baseTimeBoxY)
TypeError: 'PySide.QtCore.QPointF.__add__' called with wrong argument types:
  PySide.QtCore.QPointF.__add__(numpy.ndarray)
Supported signatures:
  PySide.QtCore.QPointF.__add__(PySide.QtCore.QPointF)

self.w.timeBox = self.w.dotPlot.plot(
x=(clickedXCoord+self.baseTimeBoxX),
y=self.baseTimeBoxY
)