For pattern recognition and computer vision, fitting of curves and surfaces to a set of given data points in space is a relevant
subject. In this paper, we review the current orthogonal distance fitting algorithms for parametric model features, and, present
two new algorithms in a well organized and easily understandable manner. Each of these algorithms estimates the model parameters
which minimize the square sum of the shortest error distances between the model feature and the given data points. The model
parameters are grouped and simultaneously estimated in terms of form, position, and rotation parameters. We give various examples
of fitting curves and surfaces to a point set in space.