scale

Documentation

Overview

Package scale handles color scales and other types of scales

Index

• type CEntry
• type Color
  • func (c Color) Get(x float64) gohue.Color
  • func (c Color) Interpolate(x float64) gohue.Color

Types

type CEntry

type CEntry struct {
	Value float64
	Color gohue.Color
}

CEntry represents an entry in a color scale

type Color

type Color []CEntry

Color represents an immutable color scale. Entries must be sorted by Value in ascending order.

func (Color) Get

func (c Color) Get(x float64) gohue.Color

Get converts x to a color. The returned color corresponds to the smallest value greater than or equal to x. If there are no such values, Get() returns the last color in this scale.

func (Color) Interpolate

func (c Color) Interpolate(x float64) gohue.Color

Interpolate works like Get except that it interpolates between the colors if x falls between two values in this scale.