1 /* === S I N F G =========================================================== */
3 ** \brief Template Header
5 ** $Id: ducktransform_scale.h,v 1.1.1.1 2005/01/07 03:34:36 darco Exp $
8 ** Copyright (c) 2002 Robert B. Quattlebaum Jr.
10 ** This software and associated documentation
11 ** are CONFIDENTIAL and PROPRIETARY property of
12 ** the above-mentioned copyright holder.
14 ** You may not copy, print, publish, or in any
15 ** other way distribute this software without
16 ** a prior written agreement with
17 ** the copyright holder.
20 /* ========================================================================= */
22 /* === S T A R T =========================================================== */
24 #ifndef __SINFG_STUDIO_DUCK_TRANSFORM_SCALE_H
25 #define __SINFG_STUDIO_DUCK_TRANSFORM_SCALE_H
27 /* === H E A D E R S ======================================================= */
29 #include "duckmatic.h"
31 /* === M A C R O S ========================================================= */
33 /* === T Y P E D E F S ===================================================== */
35 /* === C L A S S E S & S T R U C T S ======================================= */
39 class Transform_Scale : public sinfg::Transform
45 Transform_Scale(const sinfg::Vector& scale,const sinfg::Vector& origin=sinfg::Vector(0,0)):scale(scale),origin(origin) { }
46 sinfg::Vector perform(const sinfg::Vector& x)const { return sinfg::Vector((x[0]-origin[0])*scale[0]+origin[0],(x[1]-origin[1])*scale[1]+origin[1]); }
47 sinfg::Vector unperform(const sinfg::Vector& x)const { return sinfg::Vector((x[0]-origin[0])/scale[0]+origin[0],(x[1]-origin[1])/scale[1]+origin[1]); }
52 /* === E N D =============================================================== */