summaryrefslogtreecommitdiff
path: root/graphics/epix/geometry.h
diff options
context:
space:
mode:
authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/epix/geometry.h
Initial commit
Diffstat (limited to 'graphics/epix/geometry.h')
-rw-r--r--graphics/epix/geometry.h125
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 */