Also should be the following (I mistakenly put view2 instead of view1:
def update_view1(self):
# This doesn't appear to be called at all
minX, maxX, = self.lr.getRegion()
self.view1.vb.setXRange(minX, maxX)
On Friday, December 8, 2017 at 11:10:53 AM UTC-5, Geoffrey Barrett wrote:
>
> Hello,
>
> I am trying to do something similar to the *crosshair.py* example but
> with *RemoteGraphicsView.*
>
> Hypothetically if I have something similar to this:
>
> from PyQt4 import QtGui, QtCore
> import numpy as np
> import pyqtgraph as pg
> import pyqtgraph.widgets.RemoteGraphicsView
> import sys
>
> class main_window(QtGui.QWidget):
> """class that will serve as main window"""
> def __init__(self):
> super(main_window, self).__init__()
>
> # view 1
>
> self.view1 = pg.widgets.RemoteGraphicsView.RemoteGraphicsView()
> self.plot1 = self.view1.pg.PlotItem()
> self.view1.setCentralItem(self.plot1)
>
> # view 2
> self.view2 = pg.widgets.RemoteGraphicsView.RemoteGraphicsView()
> self.plot2 = self.view2.pg.PlotItem()
> self.view2.setCentralItem(self.plot2)
>
>
>
> # add Layout to widget
>
> layout = QtGui.QVBoxLayout()
>
> layout.addWidget(self.view1)
> layout.addWidget(self.view2)
>
> self.setLayout(layout)
>
> self.show()
>
> self.plot()
>
> def plot(self):
>
> """Plot random stuff for test"""
>
> t = np.arange(10000)/500
>
> data = np.random.rand(1, len(t))
>
> self.plot1.plot(t, data.flatten())
> self.plot2.plot(t, data.flatten())
>
>
> # add linear region item
> # self.lr = pg.LinearRegionItem() # this doesn't work it seems
> # self.plot1.addItem(self.lr)
> # RuntimeError: super-class __init__() of type InfiniteLine was never
> called
>
> self.lr = self.view2.pg.LinearRegionItem() # this appears to work
> self.plot2.addItem(self.lr)
>
> self.lr_proxy = pg.multiprocess.proxy(self.update_view1,
> callSync='off', autoProxy=True)
> self.lr.sigRegionChanged.connect(self.lr_proxy)
>
>
>
> def update_view1(self):
> # This doesn't appear to be called at all
> minX, maxX, = self.lr.getRegion()
> self.view2.vb.setXRange(minX, maxX)
>
> def run():
>
> app = pg.mkQApp()
> win = main_window()
> sys.exit(app.exec_())
>
>
> if __name__ == '__main__':
> run()
>
>
> When you move the linear region nothing happens so there's something
> wrong. I used a proxy to connect the update_view1 slot to the
> sigRegionChanged signal because I was getting a pickling error otherwise.
> Any advice would be appreciated.
>
> -Geoff
>
--
You received this message because you are subscribed to the Google Groups
"pyqtgraph" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/pyqtgraph/568607fd-349d-4712-8c8a-ff46cbe072e2%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
