IDP.Math.KArc3d.getApproximatePointsByRatio() method

对当前圆弧进行离散，保证相邻两点之间的弦高和弦长之比小于给定的比例值。

Discretize the Arc to points with specified ratio between sagitta and chord length.

Signature:

getApproximatePointsByRatio(ratio?: number): KPoint3d[];

Links: getApproximatePointsByRatio(ratio?: number): KPoint3d[];

Parameters

Parameter	Type	Description
ratio	number	(Optional) 相邻两点之间圆弧段的弦高和弦长之比。 如果没有输入弦高和弦长比例值或者输入值不在（0，1）之间，则默认会采用PI/60为刻度去离散圆弧。 ratio = sagitta / chord length. If ratio is not provided or the value is not between (0,1), then it will use step = PI/60 radians to discretize the arc.

Returns:

KPoint3d[]

离散点列。

The discretized points.