I am new to PyqtGraph ( Infact this is my first time)
I have a Qt designer file which I import in my python code. I 6 windows in
which I plot a 42x22 (different sizes) as an inmage, these have been
promoted the graphicview.
I have a data set which is 6x42x22 and so I use a for loop to plot the 6
images
for n in range(imageStackSize):
self.glayout = pg.GraphicsLayout()
self.vb = self.glayout.addViewBox()
self.vb.setAspectLocked(lock=True, ratio=self.aspect_ratio)
img_temp = image[n, :, :]
img = pg.ImageItem(img_temp, lut=self.jet_lut)
if n == 0:
self.ui.Channel1_img.setCentralItem(self.glayout)
self.vb.addItem(img)
elif n == 1:
self.ui.Channel2_img.setCentralItem(self.glayout)
self.vb.addItem(img)
elif n == 2:
self.ui.Channel3_img.setCentralItem(self.glayout)
self.vb.addItem(img)
elif n == 3:
self.ui.Channel4_img.setCentralItem(self.glayout)
self.vb.addItem(img)
elif n == 4:
self.ui.Channel5_img.setCentralItem(self.glayout)
self.vb.addItem(img)
elif n == 5:
self.ui.Channel6_img.setCentralItem(self.glayout)
self.vb.addItem(img)
After this I am trying to click on one of the image (ideally I would like
to make it such that I can click any of the six images) to get the (6,x,y)
coordinated the first dimension does not matter. In order to achieve this I
did
self.ui.Channel1_img.scene().sigMouseClicked.connect(self.onClick)
#self.ui.Channel2_img.scene().sigMouseClicked.connect(self.onClick)
#self.ui.Channel3_img.scene().sigMouseClicked.connect(self.onClick)
#self.ui.Channel4_img.scene().sigMouseClicked.connect(self.onClick)
#self.ui.Channel5_img.scene().sigMouseClicked.connect(self.onClick)
#self.ui.Channel6_img.scene().sigMouseClicked.connect(self.onClick)
#self.ui.PMTVoltage_plt.scene().sigMouseClicked.connect(self.onClick)
def onClick(self, event):
print("clicked")
and then I tried
items =
self.ui.Channel1_img.imageItem.mapFromViewToItem(event.pos())
and
items =
self.ui.Channel1_img.imageItem.mapFromSceneToView(event.pos())
but the prog just crashes. I read somewhere that the coordinates are in
the viewbox, but I cant seem to find the viewbox or vb in the
self.ui.Channel1_img
what am I missing? Any help is appreciated
thanks,
Pramod
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