visualpython-users

[Visualpython-users] How to draw a polyhedron?

[Phlip <ppl...@om...>]

VPython users:

I'm auditioning 3D graphics libraries, and need to demonstrate VPython 
showing an Archimedian Solid. I can't find an examples on the net; what's the 
most rudimentary one possible?

-- 
  Phlip
     http://www.greencheese.org/SpringPicnicZero
  --  "In my experience, the customer doesn't know what he wants
       until you don't give it to him." --David Brady  --

[Visualpython-users] How to embed into Tk?

[Phlip <ppl...@om...>]

VPython users:

I'm auditioning 3D graphics libraries, and need to demonstrate VPython
grafted into a Frame. The rest of our UI is Tkinter (and uses 
multidimensional data), and a window floating over it revealing this data 
would damage the user's experience. I can't find an examples on the net; so 
(once again ;-) what's the most rudimentary one possible?

-- 
  Phlip
           http://www.greencheese.org/MayorZogg
"Education is an admirable thing, but it is well to remember that
nothing that is worth knowing can be taught."  -- Oscar Wilde

Re: [Visualpython-users] How to embed into Tk?

[Bruce S. <ba...@an...>]

This is only an educated guess, but I don't think it's possible to put a 
Visual display into a Tkinter window, because Visual uses OpenGL for its 
graphics.

Bruce Sherwood

--On Tuesday, April 16, 2002 2:44 PM -0700 Phlip <ppl...@om...> 
wrote:

> I'm auditioning 3D graphics libraries, and need to demonstrate VPython
> grafted into a Frame. The rest of our UI is Tkinter (and uses
> multidimensional data), and a window floating over it revealing this data
> would damage the user's experience. I can't find an examples on the net;
> so  (once again ;-) what's the most rudimentary one possible?

Re: [Visualpython-users] How to embed into Tk?

[Phlip <ppl...@om...>]

[Why is this list server set so Reply goes to individuals instead of the 
list? That is so lame!!]

Bruce Sherwood sez:

> This is only an educated guess, but I don't think it's possible to put a
> Visual display into a Tkinter window, because Visual uses OpenGL for its
> graphics.

PyOpenGL does it via TOGL.

The ideal library for us would have all VPython's features, the ability to 
just render into a Tk window and eat user inputs, and an easy pass-thru 
straight to PyOpenGL.

Yes, I know VPython wraps OpenGL directly. My problem is I have colleagues 
who are too smart for their own good; they will cheerfully code some complex 
geometric display using raw PyOpenGL calls in hideously long functions, not 
recognizing Assembler for what it is. I want to support their efforts, but I 
also want objects!

-- 
  Phlip
   http://www.greencheese.org/PhilosophyBrethrenThree
  --  Friends don't let friends use Closed Source software  --

Re: [Visualpython-users] How to embed into Tk?

[Phlip <ppl...@om...>]

Phlip sez:
> VPython users:
>
> I'm auditioning 3D graphics libraries, and need to demonstrate VPython
> grafted into a Frame. The rest of our UI is Tkinter (and uses
> multidimensional data), and a window floating over it revealing this data
> would damage the user's experience. I can't find an examples on the net; so
> (once again ;-) what's the most rudimentary one possible?

VPython wraps Gtk and gtkglarea, so this appears problematic. I will now be 
Googling for such inanities as "put a Gtk widget into a Tk window".

-- 
  Phlip
        http://www.greencheese.org/PeaceAndCalm
"Remember always that you not only have the right to be an
individual, you also have an obligation to be one."  -- Eleanor
Roosevelt

Re: [Visualpython-users] How to draw a polyhedron?

[Phlip <ppl...@om...>]

Phlip sez:

> I'm auditioning 3D graphics libraries, and need to demonstrate VPython
> showing an Archimedian Solid. I can't find an examples on the net; what's
> the most rudimentary one possible?

Here ya go:

from visual import frame, rate, convex

points = ( (0, 0.771, 0.257), (0.727, 0.257, -0.257), (
			0.364, 0.514, -0.514), (0, 0.257, 0.771), (
			-0.364, 0.514, 0.514), (-0.364, -0.514, -0.514), (
			0, -0.771, 0.257), (-0.727, -0.257, 0.257), (
			0.364, 0.514, 0.514), (0.727, -0.257, -0.257), (
			0.727, 0.257, 0.257), (0, 0.257, -0.771), (
			0.727, -0.257, 0.257), (-0.364, 0.514, -0.514), (
			-0.727, 0.257, 0.257), (0.364, -0.514, -0.514), (
			-0.727, -0.257, -0.257), (0, 0.771, -0.257), (
			0, -0.771, -0.257), (-0.727, 0.257, -0.257), (
			0, -0.257, -0.771), (0.364, -0.514, 0.514), (
			-0.364, -0.514, 0.514), (0, -0.257, 0.771), )

f = frame()
a = convex(color = (0.9,0.1,0.8), frame = f)

for t in points:
    a.append(pos = t)

while 1:
    rate(100)
    f.rotate(angle=0.01)


Next question - can we make it glass? ;-)

-- 
  Phlip
     http://www.greencheese.org/DontPlanDesigns
"I love deadlines.  I love the whooshing sound they make as they fly
by." -- Douglas Adams

Re: [Visualpython-users] How to draw a polyhedron?

[Bruce S. <ba...@an...>]

Nice polyhedron. You can improve the appearance by inserting this line just 
before the while:

a.display.autoscale = 0

Without it, with this particular solid, Visual's attempt to autoscale is 
incorrectly making small adjustments to the camera position.

Nope, no glass yet. Transparency and real time are somewhat incompatible 
and require a major restructuring of Visual.

Bruce Sherwood