SVG linear gradient from hue 0 to 360

Question

_{(source: elv1s.ru)}

What a proper way to do a gradient like this? I tried this SVG:

Answer 1

If it's acceptable to generate the SVG with Javascript you might want to look at: How to interpolate hue values in HSV colour space?

or perhaps:

http://www.carto.net/papers/svg/gui/colourPicker/

Edit: Actually there is one here. would that be correct?

http://upload.wikimedia.org/wikipedia/commons/5/5d/HSV-RGB-comparison.svg