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Code Issues Releases Activity

empty colorscale returns some value

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Nikolay 2021-02-27 16:00:39 +00:00 committed by GitHub
parent 513db54b64
commit 594a8f6c77
1 changed files with 3 additions and 0 deletions
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3
charts/colorscale.go
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@ -15,6 +15,9 @@ type BasicColorScale []color.RGBA
// GetColor returns color based on float value from 0 to 1
func (c BasicColorScale) GetColor(val float64) color.RGBA {
if len(c) == 0 {
return color.RGBA{}
}
maxIdx := len(c) - 1
idx := int(math.Round(float64(maxIdx) * val))
return c[idx]