Re: [PyX-user] use of non-builtin palette?

[Michael S. <mic...@ph...>]

Hello.

On 10.06.06, John Owens wrote:
> Thanks for such a long and detailed reply. I'll try to be clearer this
> time around. :)

;-)

> palette.getColor(0, n)  => gives the first point's color
> palette.getColor(1, n)  => gives the second point's color
> etc.
> 
> Now, under the hood, that's implemented as a linear interpolation.
> Also, the need to specifically make that call is hidden, which is
> cool; it's all done under the hood as well. But somewhere in the code
> this calculation is made, and it's a function of the point number
> (first point, second point, etc.) and the total number of points.
> 
> My first question, then, is where specifically is this done? I admit I
> haven't dived in too deep, but I'm fairly sure the linear interpolant
> is calculated as "point_number / total_number_of_points", and I don't
> know where it's done in the code. You mention to start (below) in
> "plotitems" so I'll start poking around there; any further pointers
> would be appreciated. 

To answer your first question:
See module color.py lines 334 to 340.

Michael.

-- 
"A mathematician is a device for turning coffee into theorems"
  Paul Erdös.