[vtkusers] Annotation using vtk and Qt

[Prathamesh Kulkarni]

Also, I as I go on marking points for any layer, I need to fit a
spline/line connecting them and show it on the image to verify if the
annotation is close enough to the layer boundary. I tried using the
example at VTK/Examples/Widgets/ContourWidget but this does not give
me the pixel co-ordinates.

On Wed, Jun 23, 2010 at 2:28 PM, Prathamesh Kulkarni
<prathameshmkulkarni at gmail.com> wrote:
> That's cool, I saw the demo for vtkSeedWidget. That will pretty much
> work for me.
>
> Since my application involves marking pixels on different layers of an
> image, I need to allow the user (using a push button) to save and
> clear all the points and mark new ones for a different layer.
>
> Will anyone please point me to the right classes which will allow me
> to add such kind of user interaction?
>
> If I don't find an easy way to do this, I might have to switch to Matlab :(
>
> Prathamesh
>
> On Wed, Jun 23, 2010 at 11:35 AM, Jothy <jothybasu at gmail.com> wrote:
>> If you want to mark point on image then you should use vtkSeedWidget
>>
>> If you want to display text then you should use
>> vtkTextWidget/vtkCaptionwidget
>>
>> Jothy
>>
>>
>> On Wed, Jun 23, 2010 at 5:32 PM, Prathamesh Kulkarni
>> <prathameshmkulkarni at gmail.com> wrote:
>>>
>>> Thanks for the help. I will have a look at them. So if you mean to say
>>> that these 2 classes will suffice for marking points on a vtkImage and
>>> saving its image co-ordinates to a file (I also want to provide
>>> options to user) ? Do I need to do anything with Qt for this?
>>>
>>> On Wed, Jun 23, 2010 at 11:10 AM, Jothy <jothybasu at gmail.com> wrote:
>>> > I think you should use vtkCaptionWidget or vtkTextWidget.
>>> >
>>> > Jothy
>>> >
>>> > On Wed, Jun 23, 2010 at 5:00 PM, Prathamesh Kulkarni
>>> > <prathameshmkulkarni at gmail.com> wrote:
>>> >>
>>> >> Hello all,
>>> >>
>>> >>
>>> >> I want to develop an application in which I can annotate points on
>>> >> medical images and save their image co-ordinates in my class. Also, I
>>> >> want to provide options like deleting previous point and adding more
>>> >> points while the points are being marked by the user.
>>> >>
>>> >> I am new to vtk and have never tasted Qt.
>>> >>
>>> >> Could someone please guide me by giving me a step by step procedure
>>> >> required to do this?
>>> >>
>>> >> Thanks,
>>> >> Prathamesh
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>>
>>
>