Javadoc
Finds the index for a point on the line
which is greater than the given index.
If no such index exists, returns minIndex.
This method can be used to determine all indexes for
a point which occurs more than once on a non-simple line.
It can also be used to disambiguate cases where the given point lies
slightly off the line and is equidistant from two different
points on the line.
The supplied point does not necessarily have to lie precisely
on the line, but if it is far from the line the accuracy and
performance of this function is not guaranteed.
Use
#project to compute a guaranteed result for points
which may be far from the line.