I just install Vpython (I compile it from the cvs) on Linux 2.2.18 (suse
7.1 distribution) under python2.0.
It seems that Vpython work fine.
But I have a problem with povexport.py (from povexport1-1.zip).
It seems that the problem comes from the call to hasattr() in the
add_texture() function in povexport.py.
for testing purpose, I have modified the add_texture function in
povexport.py as:
-------------------------------------------------------
def add_texture(a, code):
# add in user-specified texture (will override color)
print 'in add_texture',a,a.__class__,a.__members__ #added by A.K
if hasattr(a, 'pov_texture'):
print 'yes, has attr pov_texture' #added by A.K.
tstring = ' texture { '+ a.pov_texture + ' }\n'
end = rfind(code, '}')
code = code[:end] + tstring + code[end:]
else:#else block added by A.K.
print 'no, has not attr pov_texture'
return code
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and I excute the following python povsimple.py module:
---------------------------------------------------
#file povsimple.py
from visual import *
import povexport #with the modified add_texture
print 'Instructions: zoom and rotate to get the viewing angle\n\
you want. Click the mouse to generate POV-Ray code.\n'
scene.x=scene.y=0
rod = cylinder(pos=(0,2,1), axis=(5,0,0), radius=1)
rod.color = (0,0,1) # make rod be blue
filename = 'povexample.pov'
scene.mouse.getclick() ## position camera somewhere, then click
code = povexport.export(display=scene)
ff = open(filename, 'w')
ff.write(code)
ff.close()
print 'PovRay code written to ',filename
-----------------------------------------------------------
then the execution of:
python povsimple.py
gives:
-------------------------------------------------
Visual-2001-02-20
Instructions: zoom and rotate to get the viewing angle
you want. Click the mouse to generate POV-Ray code.
in add_texture <Primitive object at 0x818f5c8> cylinder ['axis', 'blue',
'color', 'display', 'frame', 'green', 'length', 'pos', 'radius', 'red',
'up', 'visible', 'x', 'y', 'z']
Erreur de segmentation
------------------------------------------------
thanks for your help
--
Arne Keller
Laboratoire de Photophysique Moleculaire du CNRS, Bat. 213.
Universite de Paris-Sud, 91405 Orsay Cedex, France.
tel.: (33) 1 69 15 82 83 -- fax. : (33) 1 69 15 67 77
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