[vtkusers] Add tooltipl to a vtkChartXY

[Martina Litterio]

I have a class that extend vtkChartXY and I've tried to override its
MouseMoveEvent().
I've added the following line

if(mouse.GetButton()== vtkContextMouseEvent::LEFT_BUTTON)
to intercept the start of the dragging event, but it returns false.

The only condition that returns true put in that function is this one

if(mouse.GetButton()== vtkContextMouseEvent::NO_BUTTON)

I know something is missing but I can't understand what 😅

*Martina*

2018-05-04 14:05 GMT+02:00 Paul Douglas Hahn <pdhahn at comcast.net>:

> You can override the MouseMoveEvent() method in your subclass of
> vtkChartXY.
>
>
> On 05/04/2018 04:46 AM, Martina Litterio wrote:
>
> Updates: I'm finally able to show a tooltip when I left click on my
> vtkChartXY.
> My problem now is that I would like that the tooltip changes its values
> when I drag the point with the mouse.
> How can I intercept that event?
>
> *Martina*
>
> 2018-05-04 9:53 GMT+02:00 Martina Litterio <litteriomartina at gmail.com>:
>
>> Hello everybody!
>>
>> I have a vtkChartXY like the which one in figure and I would like to add
>> a tooltip when I select a point with the mouse left button. Is it possible?
>> I've tried a little bit, but I failed!
>> Thank you for the help!
>>
>> *Martina*
>>
>
>
>
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