The general effect of the bands of colour fanning out from the point on ![]() The L and R corners at the centre, as this is fixed later, as long as Spectrum CCW gradient and adjust the copy's end colours to match thoseġ Create a new document with a square selection on a white background.Ģ Change the blend tool to Gradient: Custom copy of Full Saturationģ Drag the blend tool horizontally from the L to R side of the square.Ĥ Press Ctrl+a to select the entire square.Ħ Drag the bottom L and R handles to the vertical centre line, keeping So you will first need to copy the Full Saturation The cone will make a tangent to the ellipse a little around the bottomĬurve from the ends. To change the four white corners of the ellipse to black.ĩ Choose Select > By Colour, click the black, and cut the black This is the base of the inverted cone.ħ Add an alpha channel to the ellipse layer.Ĩ Change the foreground colour to black, then use the Bucket Fill tool The copy so that the transparency sets in earlier.Ħ Change the proportions so the circle becomes an ellipse, longer in Saturated enough, copy the FG Colour to Transparent gradient and adjust Now have a circle filled with a coloured cone.ĥ Change the Gradient to FG Colour to Transparent and Shape to (You might want to set up guides to locate the centre ofĢ Click the Blend tool, set the Gradient to Full Saturation SpectrumĬCW, and set the Shape to Conical (asym).ģ Click the centre of the circular selection and draw a radius. *Create the base of the inverted HSV cone*ġ Use the ellipse selection to create a circle selection on a whiteīackground. I did it in Gimp in the end as follows (thanks, Gimp listers): ![]() > unfortunately a PNG and not a vector graphic - to be removed. > labels, arrows, and the wedge cut-out in this graphic - which is > derived from the CIE 1931 chromaticity diagram I want to create a representation of the HSV cone similar to that at
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