Re: [Visualpython-users] text placement in window space and future features

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

Currently there isn't a way to place text in a fixed position. Notice
however that a "label" does continue to face you as you rotate the camera.

Thom Ives initiated a module which creates some new objects: tube, frustum
(a cone with the top cut off), and partial sphere. These were built using
the low-level faces object. You can find this module in a new area of
http://vpython.org for demo programs contributed by users.

It would be lovely to have opacity for Visual objects, but this is very
difficult to achieve with real-time rendering. It is feasible with labels
because they are always in front.

Bruce Sherwood

----- Original Message -----
From: "John Keck" <joh...@ho...>
To: <vis...@li...>
Sent: Thursday, February 06, 2003 7:51 PM
Subject: [Visualpython-users] text placement in window space and future
features


> I'm wondering if it is possible to position text in 2-d window coordinates
> (as opposed to the virtual 3-d coordinates that VPython usually uses).  I
> want to have some text that remains in the same position (the edge of the
> window, say), even as the user rotates the scene and zooms, etc.  Is there
> any way to do this?
>
> Also, are there any other geometrical figures planned for VPython?  For
> example: ellipsoids, truncated cones, or non-rectangular prisms?  If not,
> how would one go about programming objects like these?  (I'm taking the
COG
> monte-carlo package as a model here.)
>
> Another question about plans for VPython: are there any plans to implment
> opacity for geometrical figures, as there is for labels?
>
> Thanks for any help you can provide.
>
> Sincerely,
>
> NV
>
>
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