[vtkusers] calculating a point coordinates

[lydia many]

Hi,
I am not using TCl but MFC. Is there a way to interact with the viwer, pick 
a point of the image (2D)using a mouse. I'm really annoyed by this problem.
Thanks to reply

>From: Glen Lehmann <glehmann at irus.rri.ca>
>To: lydia many <vtklydia at hotmail.com>
>Subject: Re: [vtkusers] calculating a point coordinates
>Date: Sun, 04 Nov 2001 11:05:59 -0500
>
>try; value=imagedata->GetScalarComponentAsFloat(x,y,0,0)
>
>lydia many wrote:
>
>>Hello everybody
>>I have the following problem
>>I want to view an image (vtkimagedata), to click on a location of this
>>image (x,y).
>>I used vtkinteractorstyleuser to get the coordinates of the point on
>>the window of the viewer
>>How can I get the corresponding values in the imagedata.??
>>Thanks to reply
>>
>>
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>
>


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