[vtkusers] Is it possible using VTK..??

[Darshan Pai]

The polylines each has its own polyData which means it is mapped to a
seperate actor I am assuming.
So you can use a vtkActorCollection class and add these actors to the
collection using AddProp() function

Now when the CellPicker picks any PolyLine, it basically can identify the
Prop selected using the Getprop() function
Theis you can reference in the collection using the IsItemPresent() function
in the vtkActorCollection class

Actor->GetMapper()->Getinput() - and you have your PolyData

Hope that helps

Regards
Darshan

On Fri, Mar 5, 2010 at 11:10 PM, Rakesh Patil <rakeshthp at in.com> wrote:

> Hi,
>
>
> I am not sure what you mean by solid boundary and soft boundary .
> These are the property of the polyline.. A region has a boundary. That
> boundary can be rigid boundary or a soft one through which water can pass
> for example.. this boundary is represented using polyline.. How to keep
> track of this property.??
>
>
> But when you pick the paticular polyline , you know which prop is that by
> say making an ActorCollection and finding the Prop in there.
> I didnt find any example of this class. How do i use this..?? Anyways, will
> give it a try..
>
>
> CellPicker has a GetProp Function. From the Prop you can get your Data
> back.
> Will try this also..
>
> Thanks
>
> Regards
> Rakesh Patil
>
>
> ---------- Original message ----------
> From:Darshan Pai< darshanpai at gmail.com >
> Date: 06 Mar 10 01:59:42
> Subject: Re: [vtkusers] Is it possible using VTK..??
> To: Rakesh Patil
>
> I am not sure what you mean by solid boundary and soft boundary .
>
> But when you pick the paticular polyline , you know which prop is that by
> say making an ActorCollection and finding the Prop in there . CellPicker has
> a GetProp Function. From the Prop you can get your Data back.
>
> Regards
> Darshan
>
> On Fri, Mar 5, 2010 at 10:35 AM, Rakesh Patil <rakeshthp at in.com> wrote:
>
>> Dear users,
>>
>> I'm back again with is it possible question.. I have a set of polylines..
>> Each polyline is having its own polydata..
>>
>> Now i select this data using vtkCellPicker. After selecting, I need to
>> draw a circle around this polyline. Is this possible..??
>>
>> Let me remind you, there are several polylines, and only one polyline is
>> to be selected... Now the problem is after picking this polyline,
>> how will i come to know which polyline is selected and how to get the data
>> of that polyline..?? Secondly, this polyline defines a boundary.
>> A solid boundary, and soft boundary.. The circle is to be drawn only if
>> the polyline is a solid boundary. So this checking how can be done.?
>>
>> I have attached a sample image file how i want the output to be..
>>
>> Any ideas ..??
>>
>> Thanks
>>
>> Regards
>> Rakesh Patil
>>
>>
>> Dear *vtkusers !* Get Yourself a cool, short *@in.com* Email ID now!<http://mail.in.com/mails/new_reg.php?u+tm_source=invite&utm_medium=outgoing>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Follow this link to subscribe/unsubscribe:
>> http://www.vtk.org/mailman/listinfo/vtkusers
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20100306/8160268d/attachment.htm>