Multicoloured radial gradient -- how to?

[Hedley]

I want to create a representation of the HSV cone similar to that at
<http://en.wikipedia.org/wiki/Image:HSV_cone.png> to show how it is
derived from the CIE 1931 chromaticity diagram
<http://en.wikipedia.org/wiki/Image:CIExy1931.svg>.  I want all the
labels, arrows, and the wedge cut-out in this graphic -- which is
unfortunately a PNG and not a vector graphic -- to be removed.

If have tried using the clone tool to obliterate the unwanted arrows and
letters, but cannot get a clean blend, not even with a blurred brush
tool.  One approach would be to treat a vector circle as the top of an
apple pie, and create a series of wedges like slices.  Then, in each
wedge (slice), create a gradient from the edge to the tip.  But I can't
figure out how to  blend adjacent wedges.

Is there another approach to get a continuous rainbow of colours around
the perimeter of the circle, and then do a radial blend from white in
the centre to the perimeter?

I use The Gimp for pixmaps and Inkscape for vector graphics, and also
Scribus.  If you don't have experience with these programs, can you
describe what to do in general terms, not in specific PhotoShop,
Illustrator, or InDesign terms.  It shouldn't be too hard to translate a
general description into the necessary actions.

Regards,
Hedley

--

Hedley Finger

28 Regent Street   Camberwell VIC 3124   Australia
Tel. [phone]   Fax. (call phone first)
Mob. (cell) [phone]
Email. "Hedley Finger" <hfinger@...>




_______________________________________________
Scribus mailing list
Scribus@...
http://nashi.altmuehlnet.de/mailman/listinfo/scribus