Just add I went through the entire ui variable in debug to look for vb or
image Item and could not find it.
infact the only thing I found was,
items = {dict} {<pyqtgraph.graphicsItems.ViewBox.ViewBox.ViewBox object at
0x000001CF73888CA8>: [(0, 0)]}
<pyqtgraph.graphicsItems.ViewBox.ViewBox.ViewBox object at
0x000001CF73888CA8> (1990508186792) = {list} <class 'list'>: [(0, 0)]
0 = {tuple} <class 'tuple'>: (0, 0)
0 = {int} 0
1 = {int} 0
__len__ = {int} 2
__len__ = {int} 1
__len__ = {int} 1
On Wednesday, September 13, 2017 at 4:38:40 PM UTC-7, Pramod Butte wrote:
>
>
> 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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