`curve.pointAtT(t)`

Return a point on the curve at a point specified by `t`

.

The function expects `t`

to lie between 0 and 1; values outside the range are constrained to 0 and 1, respectively.

This function is not a counterpart to the `line.pointAt()`

function. The relationship between `t`

and distance along a curve is complex and non-linear. If a point at a certain `ratio`

(normalized length) away from beginning of the curve is needed, use the `curve.pointAt()`

function.