[proFit-list] parametric curves

[pro Fit Support]

Dear Chris

Check out the Lissajous example files that you will find under
Example Files/Programming 4 - drawing/

They basically restart to issuing a series of MoveTo/LineTo statements into the drawing window. In other words, they generate a polygon in the drawing window.

If you want to to the same as a curve within the graph, you must bracket the calls to MoveTo/LineTo within calls to OpenCurve() and CloseCurve().

Hope this helps

Kurt Sutter
QuantumSoft



On 28 Sep 2012, at 2:02, Chris Lee <laserboy at fusemail.com> wrote:

> Hi All,
> 
> Is there a simple way to plot a parametric curve? So, for instance:
> 
> from numpy import cos, sin
> def lisajFigures(t, A, omega_a, B, omega_B):
> 	x = A*cos(omega_a*t)
> 	y = B*sin(omega_b*t)
> 	return x, y
> 
> Now, I am not interested in x vs t or y vs t, but x vs y. I can't think of a good way to do this other than to tabulate and plot the data… Is there something better?
> 
> Cheers
> Chris
> 
> 
> 
> 
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