Re: [Visualpython-users] subclassing of visual objects

[Markus G. <gr...@iu...>]

David Scherer wrote:

> > Is it possible to subclass visual objects like "sphere" and "cone"?
>
> No, but there may be another way to accomplish your goal.  Can you be more
> specific about what you want?  Are you trying to change the rendering
> behavior of the objects, or just add methods and properties?

I know that it is possible to store additional attibutes in a visual object,
but subclassing would have been more elegant.  The problem was this, that I
already had a class called "Mass" which had several attributes including x,
y, z.  If the visual objects could have been subclassed, I would have derived
my Mass class from visual.sphere, and due to the usage of x, y, z in my Mass
class, I would have got visualization for free.  Because this is not possible
I had to store a visual.sphere object in my Mass class and rewrote every
usage of x, y, z in my class to use the visual.sphere x,y,z  instead.

Storing additional attributes in visual objects is nice, but in my case
subclassing would have been more elegant.

Do you think there is a better solution.

Thanks, and have fun,
Markus

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