[Visualpython-users] how to hide arrows drawn in vpython

[CHAPMAN, R. <ric...@um...>]

hi
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im having problems temporarily hiding the arrow drawn on screen the
code goes something like what follows but i added comments on what is
actually happening. any help would be appreciated.
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rich, see code below :-)
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xaxis=3Darrow(pos=3Dvector(0, 0, 0), axis=3D(0, 0, 0), =
color=3Dcolor.red,
shaftwidth=3D0.5)
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xaxis.axis =3D vector(1, 0, 0)
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#the vector is now displayed on screen
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#now i cant seem to hide it
xaxis.visible =3D 0
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#hhmm the xaxis is still visible on the screen but is no longer
updated if i change something like position
xaxis.pos =3D vector(3, 0, 0)
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#lets try to make it invisible by making the axis nothing
xaxis.axis =3D vector(0, 0, 0)
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#now reshow the vector, but it never hid it in the first place, shows
up in the position vector(3, 0, 0) xaxis.visible =3D 1
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