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log 是使用对数函数进行数据映射,它的映射函数为 y = log(x) + b。

开始使用

{
"scale": {
"y": {}
}
}

选项

属性描述类型默认值
domain设置数据的定义域范围number[]输入数据的最大最小值范围
domainMin设置数据的定义域最小值number输入数据的最小值
domainMax设置数据的定义域最大值number输入数据的最大
range设置数据映射的值域范围number[] | string[][0, 1]
rangeMin设置数据映射的值域最小值number | string0
rangeMax设置数据映射的值域最大值number | string1
unknown对于 undefined, NaN,null 空值,返回的数据anyundefined
tickCount设置推荐的 tick 生成数量,tickCount 只是建议值,不会完全按照这个值产生 ticknumber5
tickMethod设置生成 tick 的方法,常用于自定义 tick(min: number, max: number, count: number) => number[]calculateLogTicks
round输出值去四舍五入booleanfalse
clamp将映射值限定在 range 的范围内booleanfalse
nice扩展 domain 范围,让输出的 tick 展示得更加友好booleanfalse
interpolate自定义差值函数(a: number, b: number) => (t: number) => T(a, b) => (t) => a * (1 - t) + b * t
base设定对数底number10
  • log 底数默认为 10,怎么设定 log 的底数
{
"scale": {
"y": {
"base": 100
}
}
}