Diff for "VPython" - Python Wiki

Differences between revisions 3 and 23 (spanning 20 versions)

from visual import * from random import uniform

# David Scherer

scene.range = 3

a = convex(color=(0.5,0,0)) b = convex(color=(0,0.5,0)) c = convex(color=(0,0,0.5)) d = convex(color=(0.5,0,0.5)) e = convex(color=(0.5,0.5,0)) f = convex(color=(0,0.5,0.5))

# circle t = arange(0,2*pi,0.1) e.pos = transpose( (sin(t), cos(t)+2, 0*t) )

# triangle t = arange(0,2*pi,2*pi/3) f.pos = transpose( (sin(t)-2, cos(t)+2, 0*t) )

# disk for t in arange(0,2*pi,0.1):

a.append(pos = (cos(t),0,sin(t))) a.append(pos = (cos(t),0.2,sin(t)))

# box for i in range(8):

p = vector((i/4)%2 - 2.5, (i/2)%2 - 0.5, (i)%2 - 0.5) b.append(pos=p)

# random sphere L = [] for i in range(1000):

L.append(vector(2,0) + norm(vector(uniform(-1,1),uniform(-1,1),uniform(-1,1))))

c.pos = L

# lat/long sphere L = [] for t in arange(0,2*pi,0.2):

for s in arange(0,pi,0.1):
- L.append((cos(t)*sin(s)+2, sin(t)*sin(s)+2, cos(s)))

print len(L) d.pos = L

# modify the disk p = a p.color = (p.color[0]*2, p.color[1]*2, p.color[2]*2) while 1:

rate(10) if scene.mouse.clicked:
- c = scene.mouse.getclick() p.append(pos=c.pos)
p.pos[-1] = scene.mouse.pos

-  ⇤ ← Revision 3 as of 2005-12-15 20:23:43 → 
  Size: 874
  Editor: cpe-069-134-140-023
  Comment:
+   ← Revision 23 as of 2009-10-25 02:43:08 → ⇥
  Size: 1227
  Editor: ppp-64-109-16-57
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
-VPython is an extension for Python to allow easy, "pythonic" 3D.  It is used primarily for teaching physics, but can be applied to other domains readily.
+from visual import *
from random import uniform
-Line 3:
+Line 4:
-[https://vpython.org/ VPython Home Page]
+# David Scherer
-Line 5:
+Line 6:
-= Projects using VPython =
+scene.range = 3
-Line 7:
+Line 8:
-[https://pw1.netcom.com/~ajs/ PyGeo]
+a = convex(color=(0.5,0,0))
b = convex(color=(0,0.5,0))
c = convex(color=(0,0,0.5))
d = convex(color=(0.5,0,0.5))
e = convex(color=(0.5,0.5,0))
f = convex(color=(0,0.5,0.5))
-Line 9:
+Line 15:
-[https://www4.ncsu.edu/~rwchabay/mi Matter & Interactions] An introductory calculus-based physics curriculum for engineering and science students by Ruth Chabay and Bruce Sherwood (NCSU) that emphasizes a small number of powerful fundamental principles, incorporates the atomic nature of matter throughout, and includes an introduction to computational physics, in which students write programs in VPython to predict motion and to visualize fields.
+# circle
t = arange(0,2*pi,0.1)
e.pos = transpose( (sin(t), cos(t)+2, 0*t) )
-Line 11:
+Line 19:
-= VPython FAQ =
+# triangle
t = arange(0,2*pi,2*pi/3)
f.pos = transpose( (sin(t)-2, cos(t)+2, 0*t) )
-Line 13:
+Line 23:
-''This could also be moved to its own page if it grows unwieldy.''
+# disk
for t in arange(0,2*pi,0.1):
    a.append(pos = (cos(t),0,sin(t)))
    a.append(pos = (cos(t),0.2,sin(t)))
-Line 15:
+Line 28:
-''''How do I do X?''''
  Try using Y.
----
["CategoryPyGUI"]
+# box
for i in range(8):
    p = vector((i/4)%2 - 2.5, (i/2)%2 - 0.5, (i)%2 - 0.5)
    b.append(pos=p)

# random sphere
L = []
for i in range(1000):
    L.append(vector(2,0) + norm(vector(uniform(-1,1),uniform(-1,1),uniform(-1,1))))
c.pos = L

# lat/long sphere
L = []
for t in arange(0,2*pi,0.2):
    for s in arange(0,pi,0.1):
        L.append((cos(t)*sin(s)+2, sin(t)*sin(s)+2, cos(s)))
print len(L)
d.pos = L

# modify the disk
p = a
p.color = (p.color[0]*2, p.color[1]*2, p.color[2]*2)
while 1:
    rate(10)
    if scene.mouse.clicked:
        c = scene.mouse.getclick()
        p.append(pos=c.pos)
    p.pos[-1] = scene.mouse.pos

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