diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/epix/geometry.h |
Initial commit
Diffstat (limited to 'graphics/epix/geometry.h')
-rw-r--r-- | graphics/epix/geometry.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/graphics/epix/geometry.h b/graphics/epix/geometry.h new file mode 100644 index 0000000000..60afb8af9c --- /dev/null +++ b/graphics/epix/geometry.h @@ -0,0 +1,125 @@ +/* + * geometry.h + * + * This file is part of ePiX, a preprocessor for creating high-quality + * line figures in LaTeX + * + * Version 1.1.6 + * Last Change: June 28, 2007 + */ + +/* + * Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 + * Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh> + * Department of Mathematics and Computer Science + * College of the Holy Cross + * Worcester, MA, 01610-2395, USA + */ + +/* + * ePiX 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. + * + * ePiX 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. + * + * You should have received a copy of the GNU General Public License + * along with ePiX; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef EPIX_GEOMETRY +#define EPIX_GEOMETRY + +#include "frame.h" +#include "sphere.h" + +namespace ePiX { + class P; + + // latitude, longitude lines with hiding + void latitude(double lat, double long_min, double long_max, + const Sphere& S=Sphere(), const frame& coords=frame()); + + void longitude(double lngtd, double lat_min, double lat_max, + const Sphere& S=Sphere(), const frame& coords=frame()); + + void back_latitude(double lat, double long_min, double long_max, + const Sphere& S=Sphere(), const frame& coords=frame()); + + void back_longitude(double lngtd, double lat_min, double lat_max, + const Sphere& S=Sphere(), const frame& coords=frame()); + + + // stereographic projection; path first projected vertically + void frontplot_N(double f1(double), double f2(double), + double t_min, double t_max, int num_pts, + const Sphere& S = Sphere()); + + void backplot_N(double f1(double), double f2(double), + double t_min, double t_max, int num_pts, + const Sphere& S = Sphere()); + + void frontplot_S(double f1(double), double f2(double), + double t_min, double t_max, int num_pts, + const Sphere& S = Sphere()); + + void backplot_S(double f1(double), double f2(double), + double t_min, double t_max, int num_pts, + const Sphere& S = Sphere()); + + // Radial projection from center + void frontplot_R(P phi(double), double t_min, double t_max, + int num_pts, const Sphere& S = Sphere()); + + void backplot_R(P phi(double), double t_min, double t_max, + int num_pts, const Sphere& S = Sphere()); + + + // All sphere line functions treat point arguments as unscaled + // displacements from the center of the sphere, not as absolute + // spatial locations. If the center or radius of the sphere + // changes, the line automatically adjusts as expected. + + // front portion of spherical segment joining p1 to p2 + void front_arc(const P& p1, const P& p2, const Sphere& S = Sphere()); + void back_arc(const P& p1, const P& p2, const Sphere& S = Sphere()); + + // half-line joining p1 to -p1 through p2 + void front_arc2(const P&, const P&, const Sphere& S=Sphere()); + void back_arc2(const P&, const P&, const Sphere& S=Sphere()); + + // great circle through p1 and p2 + void front_line(const P&, const P&, const Sphere& S=Sphere()); + void back_line(const P&, const P&, const Sphere& S=Sphere()); + + void front_triangle(const P&, const P&, const P&, const Sphere& S=Sphere()); + void back_triangle(const P&, const P&, const P&, const Sphere& S=Sphere()); + + // spherical polyhedra + void front_tetra(const Sphere& S=Sphere(), const frame& coords=frame()); + void back_tetra(const Sphere& S=Sphere(), const frame& coords=frame()); + + void front_cube(const Sphere& S=Sphere(), const frame& coords=frame()); + void back_cube(const Sphere& S=Sphere(), const frame& coords=frame()); + + void front_octa(const Sphere& S=Sphere(), const frame& coords=frame()); + void back_octa(const Sphere& S=Sphere(), const frame& coords=frame()); + + void front_dodeca(const Sphere& S=Sphere(), const frame& coords=frame()); + void back_dodeca(const Sphere& S=Sphere(), const frame& coords=frame()); + + void front_icosa(const Sphere& S=Sphere(), const frame& coords=frame()); + void back_icosa(const Sphere& S=Sphere(), const frame& coords=frame()); + + // Hyperbolic lines + void hyperbolic_line (const P&, const P&); + void disk_line (const P&, const P&); + +} // end of namespace + +#endif /* EPIX_GEOMETRY */ |