    curve.divideAtT(t)

Divide the curve into two curves at the point specified by `t`.

Returns an array with two new curves without modifying the original curve. 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.divideAt()` function. The relationship between `t` and distance along a curve is complex and non-linear. If it is necessary to divide the curve at a certain `ratio` (normalized length) away from beginning of the curve, use the `curve.divideAt()` function.