Rotation of coordinates in MATLAB result in inconsistency with Python

[ptim0626]

The rotation during pixel origin initialisation at here results in inconsistency with Python. To illustrate this, consider the variable xy before shifting the fractional part when rotating at angle 1 and 90 degree using the example dataset. The important value to look at here is xy(1,2).

For rotating 1 degree, xy(1,2) is 28.588474093612945 in MATLAB, and in Python xy[1,0] is 27.588474093612945 (MATLAB and Python indices differ by 1), so they are equal; however for rotating 90 degree, xy(1,2) is 32.999999999999970 in MATLAB, and in Python xy[1,0] is 32.0.

So for 90 degree, mod(xy(1,2),1) in MATLAB results in 0.9999... and xy(:,2) is shifted by that amount, but it does not happen in Python.

Attached some files containing values of xy for both MATLAB and Python at degree 1 and 90.
xy_deg_1_90.zip

[ptim0626]

A fix could be increasing the precision in rotation in MATLAB, see here. The xy value matches for any angle now. This is the change I made when I compare the Python and MATLAB results.