ColorBarItem was introduced in 0.12.1 but it is undocumented right now
(we'll add documenting before too long I promise).

On Fri, Apr 16, 2021 at 01:38 [email protected] <[email protected]> wrote:

> Hello
> I tried to run your example in my environment with pyqtgraph 0.12 and
> pyside2, but I actually don't have the ColorBarItem. The only colorbaritem
> I found online was part of pyqtgraph-extensions which I did not have
> installed. Can you tell me if you installed that separately ?
> On Thursday, April 15, 2021 at 8:29:51 PM UTC+2 [email protected] wrote:
>
>> Thanks for the great graphics library!
>>
>> I've been trying to incorporate the new colorbar into my app, with
>> partial success. The widget works in every way, except that the actual
>> "color map" ImageItem shows up as a blank image (with possibly a compressed
>> image at the bottom?)
>>
>> [image: colorbar.png]
>>
>> My ignorance about Qt can't be helping.. perhaps there's a problem with
>> the way I'm setting up the panel where these items live. Within a
>> GraphicsLayoutWidget, I do
>>
>> 1) addLayout to get a new panel
>> 2) create ImageItem, layout.addPlot to get plot, add image to plot
>> 3) create ColorBarItem, attach to ImageItem
>> 4) layout.addItem for colorbar
>>
>> Attached: I have successfully modified the colorbar demo to use the same
>> steps (bottom left image). Just don't know why it's blank in my app.
>>
>> Appreciate any insights..
>>
>> cheers
>> Mike
>>
>>
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