> > thanks for your reply.

> > i have been able to make simple ellipse plots with the tvellipse
> > routine, as Wayne suggested. However, it is hard to make nice images
> > with this tool... Before giving a real try at function graphics, do
> > you think that it will really allow to make good pictures with color
> > gradients ? I am asking that since I never used this tool so far and
> > it looks much more complex than standard plot routines... :)
> > Would you have examples of beautiful images computed with the function
> > graphics?
> > Cheers
> > Dreamer

> Here is Wayne's example written by using function graphics :

> pl = plot([0,100], [0,100], /NODATA)
> x = [10,40,80]
> y = [20,70,60]
> orient = [80,140,0]
> for i=0,2 do begin
>   !null = ellipse(x[i], y[i], MAJOR=12, MINOR=6, THETA=orient[i], /
> DATA, FILL_COLOR=!COLOR.FIREBRICK)
>   !null = ellipse(x[i], y[i], MAJOR=8, MINOR=4, THETA=orient[i], /
> DATA, FILL_COLOR=!COLOR.SALMON)
> endfor

> then, while adding another ellipse with "manual" color blending :

> pl.Refresh, /DISABLE
> !null = ellipse(60, 20, MAJOR=20, MINOR=10, /DATA, FILL_COLOR=!
> COLOR.FIREBRICK)
> for i=0,19 do !null = ellipse(60, 20, MAJOR=20*i*0.05,
> MINOR=10*i*0.05, LINESTYLE=6, $
>   /DATA, FILL_COLOR=!COLOR.SALMON, FILL_TRANSPARENCY=6*i < 100)
> pl.Refresh

> alx.