Re: [Visualpython-users] Keeping labels in one place

[Bruce S. <bas...@nc...>]

You could put the time in an adjoining separate little window.

Bruce Sherwood

On Sat, Jul 17, 2010 at 5:09 PM, Robert French <rf...@rf...> wrote:

> Yes, C Anthony is correct. I want it to stay at an absolute pixel
> coordinate (2-D) in the window. Completely unaffected by any rotations or
> zooms.  The existing objects all move with the frame.
>
> I had thought about the constantly-reposition option but was hoping there
> was something easier.  This seems like it would be a common desire. For
> example, to put a title or timestamp or something in the display window.
>
> I'll try those suggestions and see if I can get it to work
>
> BTW, my application is orbit visualization of spacecraft. I just want the
> date and time to stay in one place.
>
> Thanks.
>
> On Jul 17, 2010, at 11:20 AM, C Anthony Risinger <an...@ex...> wrote:
>
> >
> >
> > On Sat, Jul 17, 2010 at 1:07 PM, Bruce Sherwood <bas...@nc...>
> wrote:
> >> The current version of VPython (5.32) offers a text object as well as a
> >> label object. The label object always faces the viewer, independent of
> >> rotation, whereas the (new) text object is extruded text that behaves
> like
> >> all other objects. Seems like one of these two should do what you want.
> The
> >> text object can have zero thickness.
> >> I'm not sure what you mean by a "time" display, but presumably you know
> >> about the graphing option.
> >> Bruce Sherwood
> >
> > i think what the OP is looking for is HUD functionality, ie. the
> > "time" display stays locked to the viewport, regardless of zoom or
> > rotation.
> >
> > AFIAK this is not currently supported in vpython.  however, the same
> > effect can be achieved by using a "HUD frame" and constantly
> > recomputing it's position/zoom/rotation as the main frame moves.  the
> > other option is to put your app into a "container" frame, and ensure
> > the main frame never moves... anything added to the main frame is a
> > part of the HUD; i think the issue with this was mouse grabs are sent
> > to the main frame (IIRC).  sorry, i don't have any code examples on
> > hand :-(
> >
> > C Anthony
> >
> >
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