Greetings
I'm playing with visual.controls and want to mention 3 issues.
####### Issue1: I can't position the controls window. Help?
###### Issue2: it is apparently impossible to subclass vpython
objects.
######
http://mail.python.org/pipermail/tutor/2002-November/018952.html
###### Issue3:
###### But I can simulate the effect I want by adding attributes
(including methods) to an object. FYI.
###### (This should be documented shouldn't it?) Comment?
These Issues are illustrated in the snippet below, which creates a
variant slider that displays an ID and its current value.
Visual 3.0 -2003-10-05, Mac OSX 10.3
Comments welcome.
from visual.controls import *
####### Issue1: I can't position the controls window.
c=controls(x=800) # Issue 1:
print c.display.x
####### this confirms that the value of 800 'took', but it has no
consequence. Help?
###### Issue2: it is apparently impossible to subclass vpython objects.
######
http://mail.python.org/pipermail/tutor/2002-November/018952.html
###### (This should be documented shouldn't it?) Comment?
###### Issue3:
###### But I can simulate the effect by adding attributes (including
methods) to an object. FYI.
def jslider2(**args):
self=slider(**args)
######### create the object, passing all arguments up to the
"parent"
self.label=label(display=c.display, pos=(self.pos[0] ,
self.pos[1]+self.length), text=str(self.value), box=0 )
######### turn the optional attribute ID into the text of a label
if 'ID' in args:
self.ID=label(display=c.display, pos=self.pos,
text=args['ID'], box=0 )
######### Create an internal function to
def showVal(obj, intify=0):
if intify: obj.value=int(round(obj.value))
obj.label.text=str(obj.value)
######### make showVal the "action" attribute
self.action=lambda:showVal(self, intify=0)
return self
if __name__=='__main__':
scene.autoscale=0
sph=sphere()
b2=box(pos=(2,2))
s22 = jslider2(ID='s2', pos=(-30,-50), width=7, length=50,
axis=(0,1,0) )
while 1:
c.interact()
sph.radius=1+s22.value |
