X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=ETL%2FETL%2F_bezier_angle.h;fp=ETL%2FETL%2F_bezier_angle.h;h=9a747bbdaba99105f8533504c84cb7f7fa837a81;hb=a095981e18cc37a8ecc7cd237cc22b9c10329264;hp=0000000000000000000000000000000000000000;hpb=9459638ad6797b8139f1e9f0715c96076dbf0890;p=synfig.git diff --git a/ETL/ETL/_bezier_angle.h b/ETL/ETL/_bezier_angle.h new file mode 100644 index 0000000..9a747bb --- /dev/null +++ b/ETL/ETL/_bezier_angle.h @@ -0,0 +1,107 @@ +/*! ======================================================================== +** Extended Template Library +** Bezier Template Class Implementation (Angle Specialization) +** $Id$ +** +** Copyright (c) 2002 Robert B. Quattlebaum Jr. +** +** This package is free software; you can redistribute it and/or +** modify it under the terms of the GNU General Public License as +** published by the Free Software Foundation; either version 2 of +** the License, or (at your option) any later version. +** +** This package is distributed in the hope that it will be useful, +** but WITHOUT ANY WARRANTY; without even the implied warranty of +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +** General Public License for more details. +** +** === N O T E S =========================================================== +** +** This is an internal header file, included by other ETL headers. +** You should not attempt to use it directly. +** +** ========================================================================= */ + +/* === S T A R T =========================================================== */ + +#ifndef __ETL__BEZIER_ANGLE_H +#define __ETL__BEZIER_ANGLE_H + +/* === H E A D E R S ======================================================= */ + +#include "_curve_func.h" +#include "angle" + +/* === M A C R O S ========================================================= */ + +/* === T Y P E D E F S ===================================================== */ + +/* === C L A S S E S & S T R U C T S ======================================= */ + +_ETL_BEGIN_NAMESPACE + +/* +template <> +class bezier_base : std::unary_function +{ +public: + typedef angle value_type; + typedef float time_type; +private: + affine_combo affine_func; + value_type a,b,c,d; + time_type r,s; + +public: + bezier_base():r(0.0),s(1.0) { } + bezier_base( + const value_type &a, const value_type &b, const value_type &c, const value_type &d, + const time_type &r=0.0, const time_type &s=1.0): + a(a),b(b),c(c),d(d),r(r),s(s) { sync(); } + + void sync(void) + { + } + + value_type + operator()(time_type t)const + { + t=(t-r)/(s-r); + return + affine_func( + affine_func( + affine_func(a,b,t), + affine_func(b,c,t) + ,t), + affine_func( + affine_func(b,c,t), + affine_func(c,d,t) + ,t) + ,t); + } + + void set_rs(time_type new_r, time_type new_s) { r=new_r; s=new_s; } + void set_r(time_type new_r) { r=new_r; } + void set_s(time_type new_s) { s=new_s; } + const time_type &get_r(void)const { return r; } + const time_type &get_s(void)const { return s; } + time_type get_dt(void)const { return s-r; } + + value_type & + operator[](int i) + { return (&a)[i]; } + + const value_type & + operator[](int i) const + { return (&a)[i]; } +}; +*/ + +_ETL_END_NAMESPACE + +/* === E X T E R N S ======================================================= */ + +/* === E N D =============================================================== */ + +#endif +