| Allegro CL version 6.2 Unrevised from 6.1 | |||||||||
Arguments: position matrix
The destructive version of position-transform. The position argument is modified to be the result.
This function transforms the given position with the supplied matrix, which is a 2 by 2 array (or larger 2-dimensional array -- extra cells of the array are ignored). If the elements of matrix are floats, the returned (and modified) position will have rounded whole number components. The transform works as follows:
xnew = A(0,0)*xold + A(0,1)*yold ynew = A(1,0)*xold + A(1,1)*yold
Copyright (c) 1998-2002, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 6.2. This page was not revised from the 6.1 page.
Created 2002.2.26.
| Allegro CL version 6.2 Unrevised from 6.1 | |||||||||