Data reduction

To reduce the number of data points without losing the features of a data set you can apply one of several line simplification algorithm:

Douglas-Peucker

Visvalingam-Whyatt

Reumann-Witkam

Perpendicular distance simplification

n-th point simplification

Radial distance simplification

Interpolation (nearest neighbor)

Opheim

Lang

The desired tolerance is automatically calculated from the data but can also be changed in the dock widget.