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Clipping Lines to Rectangular Viewports in MATLAB

This is so easy, someone else should have done it already. There is some code here: http://www.mathworks.co.uk/matlabcentral/fileexchange/25528-line-clipping. However, among other things (like using input), it doesn’t check for lines parallel with the clipping window borders.

Wikipedia gives a variety of algorithms – Liang/Barsky’s algorithm is probably the one which one implement most quickly.

Here goes the code:

Now, running this:

Makes this:

Category: code Tags: matlab 2-D line clipping