<div dir="ltr"><div><div><div><div>Hi,<br></div><br></div>I sub-classed vtkAbstractWidget and created a vtkSphereWidget3.<br> It seems to be working as expected when I use it in this example : <a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Widgets/SphereWidget2">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Widgets/SphereWidget2</a><br><br></div>I think that 'mouse cursor change on hover' feature is a desirable one since it indicates to the user that interaction with a sphere is possible and expected. <br><br></div>I would like to know how I can commit this piece of code for review and inclusion into the vtk repository.<br><br>Thanks<br><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Oct 10, 2014 at 10:15 AM, Cory Quammen <span dir="ltr"><<a href="mailto:cory.quammen@kitware.com" target="_blank">cory.quammen@kitware.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Alok,<br>
<br>
What I usually do is copy and paste an existing class and then modify<br>
it appropriately, e.g., renamed the class, change the parent class,<br>
remove unneeded member variables, methods, change the comments for the<br>
class, etc. In your case, I would copy the vtkSphereWidget2 class to a<br>
new class (vtkSphereWidget3?) and copy in the implementation for<br>
SetCursor() in vtkHandleWidget, then be sure to declare this method in<br>
your classes header file.<br>
<span class="HOEnZb"><font color="#888888"><br>
- Cory<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
On Fri, Oct 10, 2014 at 9:53 AM, Alok <<a href="mailto:alok.theanomaly@gmail.com">alok.theanomaly@gmail.com</a>> wrote:<br>
> Thanks Cory<br>
> I dont have experience with subclassing vtk classes yet. Is there any other<br>
> class that you can suggest as a reference to look at while going about this?<br>
><br>
><br>
><br>
> On Thu, Oct 9, 2014 at 5:13 PM, Cory Quammen <<a href="mailto:cory.quammen@kitware.com">cory.quammen@kitware.com</a>><br>
> wrote:<br>
>><br>
>> I think you will have to subclass vtkSphereWidget2 and override the<br>
>> SetCursor() method. The SetCursor() method for vtkHandleWidget is<br>
>><br>
>><br>
>> //-------------------------------------------------------------------------<br>
>> void vtkHandleWidget::SetCursor(int cState)<br>
>> {<br>
>> if ( this->ManagesCursor )<br>
>> {<br>
>> switch (cState)<br>
>> {<br>
>> case vtkHandleRepresentation::Outside:<br>
>> this->RequestCursorShape(VTK_CURSOR_DEFAULT);<br>
>> break;<br>
>> default:<br>
>> this->RequestCursorShape(VTK_CURSOR_HAND);<br>
>> }<br>
>> }<br>
>> }<br>
>><br>
>> I imagine you would want the same in your subclass.<br>
>><br>
>> HTH,<br>
>> Cory<br>
>><br>
>> On Thu, Oct 9, 2014 at 5:03 PM, junior <<a href="mailto:alok.theanomaly@gmail.com">alok.theanomaly@gmail.com</a>> wrote:<br>
>> > Hi,<br>
>> ><br>
>> > I want the mouse cursor to change to a 'hand' when the mouse is hovering<br>
>> > over a vtkSphereWidget.<br>
>> > Is there any out of box solution for this or do I need to subclass? I<br>
>> > tried<br>
>> > using vtkSphereWidget2 and setting ManagesCursorOn() to true but that<br>
>> > did<br>
>> > not help.<br>
>> ><br>
>> > I see that the vtkAngleWidget exhibits the said behavior when mouse<br>
>> > hovers<br>
>> > above one of the three control points which in my understanding are<br>
>> > vtkHandleWidgets.<br>
>> ><br>
>> > Any suggestions??<br>
>> > Thanks<br>
>> ><br>
>> ><br>
>> ><br>
>> > --<br>
>> > View this message in context:<br>
>> > <a href="http://vtk.1045678.n5.nabble.com/Change-mouse-cursor-while-hovering-on-vtkSphereWidget-tp5729100.html" target="_blank">http://vtk.1045678.n5.nabble.com/Change-mouse-cursor-while-hovering-on-vtkSphereWidget-tp5729100.html</a><br>
>> > Sent from the VTK - Users mailing list archive at Nabble.com.<br>
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><br>
><br>
><br>
><br>
> --<br>
> I live a simple life... in 0s and 1s !<br>
</div></div></blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr">I live a simple life... in 0s and 1s !</div>
</div>