MorphWeightSpline - CesiumJS API 文档

new Cesium.MorphWeightSpline(options)

线性内插于形态目标所使用的一系列权重值上的示意图.

Name Type Description

options

object

下列属性的对象 :

Name	Type	Description
`times`	Array.<number>	每个点都有严格递增的,无单位的,浮点时间的阵列. 数值与时钟时间绝无关联. 它们是曲线的参数化.
`weights`	Array.<number>	给定的浮点控制权重阵列。重物是订好的目标的所有权重按其出现的时间顺序排列 the glTF from which the morph targets come. This means for 2 targets, weights = [w(0,0), w(0,1), w(1,0), w(1,1) ...] where i and j in w(i,j) are the time indices and target indices, respectively.

Throws:

DeveloperError : weights.length must be greater than or equal to 2.
DeveloperError : times.length must be a factor of weights.length.

Example:

const times = [ 0.0, 1.5, 3.0, 4.5, 6.0 ];
const weights = [0.0, 1.0, 0.25, 0.75, 0.5, 0.5, 0.75, 0.25, 1.0, 0.0]; //Two targets
const spline = new Cesium.WeightSpline({
    times : times,
    weights : weights
});

const p0 = spline.evaluate(times[0]);

See:

Methods

clampTime(time) → number

将给定的时间压缩到线条覆盖的期间.

Name	Type	Description
`time`	number	The time.

Returns:

时间,夹在动画时期.

evaluate(time, result) → Array.<number>

在特定时间评估曲线.

Name	Type	Description
`time`	number	评估曲线的时间.
`result`	Array.<number>	optional 存储结果的对象 .

Returns:

修改后的结果参数或给定时间曲线上点的新实例.

Throws:

DeveloperError : time must be in the range [t₀, t_n], where t₀ is the first element in the array times and t_n is the last element in the array times.

findTimeInterval(time) → number

在 NT 2 times NT 3 中查找索引 NT 0 i NT 1 ,使参数如此 -NT+0 时间 NT+1 时间间隔 NT+2 [时间[i],时间[i+1]] NT+3 .

Name	Type	Description
`time`	number	The time.

Returns:

间隔开始时元素的索引.

Throws:

DeveloperError : time must be in the range [t₀, t_n], where t₀ is the first element in the array times and t_n is the last element in the array times.

wrapTime(time) → number

将给定的时间包到线条覆盖的期间.

Name	Type	Description
`time`	number	The time.

Returns:

时间,包裹在更新的动画.