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| Allegro CL version 9.0 Unrevised from 8.2 to 9.0. 8.2 version

## nposition-transform

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) 1998-2019, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.2 page.
Created 2012.5.30.

|  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 9.0 Unrevised from 8.2 to 9.0. 8.2 version