[Tutor] pixel plotting

[Laney Mills]

The vpython library has wonderful plotting routines.  One of them is gdots. 
 Gdots plots points on a graph.  Although one can control the color of the 
dots, one apparently cannot control the size of the dots.

Suppose I wanted to write  Python program to create the Mandelbrot set, 
which has hundreds of thousands of dots.  One needs to plot individual 
pixels.

Here are my two questions then:

Is there a formal description of the various vpython routines?  There is a 
wonderful tutor, but no formal description with list all the attributes 
ascribable to gdots.

If gdots can't be made to plot individuals at a given (x,y) point, is there 
some other way to do it?

Thanks

Laney Mills