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- /* Copyright (c) 1992 The Geometry Center; University of Minnesota
- 1300 South Second Street; Minneapolis, MN 55454, USA;
-
- This file is part of geomview/OOGL. geomview/OOGL is free software;
- you can redistribute it and/or modify it only under the terms given in
- the file COPYING, which you should have received along with this file.
- This and other related software may be obtained via anonymous ftp from
- geom.umn.edu; email: software@geom.umn.edu. */
-
- /* Authors: Charlie Gunn, Pat Hanrahan, Stuart Levy, Tamara Munzner, Mark Phillips */
-
- #include "transform3.h"
-
- /*-----------------------------------------------------------------------
- * Function: Tm3Transpose
- * Description: transpose a matrix
- * Args: T: the matrix to transpose (INPUT)
- * Ttrans: the transposed matrix (OUTPUT)
- * Returns: nothing
- * Author: hanrahan, mbp
- * Date: Thu Aug 8 14:41:24 1991
- * Notes:
- */
- void
- Tm3Transpose( T, Ttrans )
- Transform3 T, Ttrans;
- {
- register int i, j;
- double t;
-
- if( T != Ttrans ) {
- for( i=0; i<4; i++ )
- for( j=0; j<4; j++ )
- Ttrans[i][j] = T[j][i];
- }
- else {
- for( i=0; i<4; i++ )
- for( j=0; j<i; j++ ) {
- t = T[i][j];
- T[i][j] = T[j][i];
- T[j][i] = t;
- }
- }
- }
-