带滑块的 GRC QT GUI 范围显示错误

Question

使用 GNU Radio Companion 3.9.4.0.

我的应用程序有一个“QT GUI 范围”块。当 Widget 设置为“Counter + Slider”时，出现错误

TypeError: setRange(self, int, int): argument 2 has unexpected type 'float'

此条件的 Python 代码是，

self._rf_gain_win = RangeWidget(self._rf_gain_range, self.set_rf_gain, "RF Gain", "counter_slider", float, QtCore.Qt.Horizontal)

Widget 设置为“Counter”时没有错误。现在相同的 Python 行是，

self._rf_gain_win = RangeWidget(self._rf_gain_range, self.set_rf_gain, "RF Gain", "counter", float, QtCore.Qt.Horizontal)

如何使用所需的滑块？

= = =

完整的错误信息是：

File "C:\Users\User1\Documents\Records\Software Defined Radio - SDR\GNU Radio\Flowgraphs\HackADay Tutorials\Video 02\Simple_AM_Rx_01_temp.py", line 100, in __init__
    self._rf_gain_win = RangeWidget(self._rf_gain_range, self.set_rf_gain, "RF Gain", "counter_slider", float, QtCore.Qt.Horizontal)
  File "C:\Users\User1\miniforge3\envs\gnuradio\lib\site-packages\gnuradio\qtgui\range.py", line 121, in __init__
    self.d_widget = self.CounterSlider(self, self.range, self.notifyChanged, rangeType, orientation)
  File "C:\Users\User1\miniforge3\envs\gnuradio\lib\site-packages\gnuradio\qtgui\range.py", line 262, in __init__
    self.slider = RangeWidget.Slider(parent, ranges, self.sliderChanged, rangeType, orientation)
  File "C:\Users\User1\miniforge3\envs\gnuradio\lib\site-packages\gnuradio\qtgui\range.py", line 161, in __init__
    self.setRange(0, ranges.nsteps - 1)
TypeError: setRange(self, int, int): argument 2 has unexpected type 'float'

Answer 1

您的回溯表明文件 C:\Users\User1\miniforge3\envs\gnuradio\lib\site-packages\gnuradio\qtgui\range.py 有这一行：

self.setRange(0, ranges.nsteps - 1)

但是当我检查这个项目的存储库时here 我看到了

self.setRange(0, int(ranges.nsteps - 1))

他们纠正了一个错误。您正在使用该项目的过时版本。

带滑块的 GRC QT GUI 范围显示错误

GRC QT GUI Range with slider presents error

python

qt

gnuradio

gnuradio-companion