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List:       vtkusers
Subject:    [vtkusers] How do I turn off translation of vtkSplineWidget
From:       delicasso () netscape ! net
Date:       2012-03-30 18:10:37
Message-ID: 8CEDCB78AD99A22-8D8-5D90 () webmail-d057 ! sysops ! aol ! com
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Hi All,

I'd like to turn off the translation feature on vtkSplineWidget.  This widget allow \
you to place a spline on a 2d surface and access either individual points on the line \
to change it's shape, or move the whole thing. I want the former but not the latter \
feature, since in my segmentation application our starting point is usually extremely \
close and we just want to adjust some of the finer points on the contour.

Any ideas on this?

I'm working in Python.
I tried subclassing and accessing the protected member, LineActor and changing the \
                dragable (SetDragable()) property, but I received an error message:
AttributeError: LineActor
I believe this is supported in C++, but perhaps the C++ to Python translation does \
not support this feature. So no help there.

Also tried to overwrite the Translate() function, but the code did not execute my \
Translate function when I clicked on the line.

None of the other public functions seem to allow the fine grained access to modify \
this functionality for this object.

Thanks in advance for your suggestions.

Regards, David

 


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<font face="arial" color="black" size="2"><font face="arial" color="black" \
size="2"><font face="Arial, Helvetica, sans-serif">Hi All,<br>


<br>


I'd like to turn off the translation feature on vtkSplineWidget.&nbsp; This widget \
allow you to place a spline on a 2d surface and access either individual points on \
the line to change it's shape, or move the whole thing. I want the former but not the \
latter feature, since in my segmentation application our starting point is usually \
extremely close and we just want to adjust some of the finer points on the \
contour.<br>


<br>


Any ideas on this?<br>


<br>


I'm working in Python.<br>


I tried subclassing and accessing the protected member, </font></font><font \
size="2"><font face="Arial, Helvetica, sans-serif">LineActor and changing the \
dragable (SetDragable()) property, but I received an error message:<br>


AttributeError: LineActor<br>


I believe this is supported in C++, but perhaps the C++ to Python translation does \
not support this feature.<br>


So no help there.<br>


<br>


Also tried to overwrite the Translate() function, but the code did not execute my \
Translate function when I clicked on the line.<br>


<br>


None of the other public functions seem to allow the fine grained access to modify \
this functionality for this object.<br>


<br>


Thanks in advance for your suggestions.<br>


<br>


Regards, David<br>


</font></font></font>
</div>

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