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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/facet.h
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+/*
+ * facet.h -- Utility classes for shaded surface plotting
+ *
+ * This file is part of ePiX, a C++ library for creating high-quality
+ * figures in LaTeX
+ *
+ * Version 1.1.7
+ * Last Change: July 08, 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
+ */
+
+#include "triples.h"
+#include "frame.h"
+
+#include "path.h"
+
+#include "Color.h"
+#include "pen_data.h"
+
+namespace ePiX {
+
+ class facet {
+ public:
+ // create quasi-planar region bounded by path segments in f(R)
+ facet(P f(double, double),
+ double u0, double v0, double du, double dv,
+ const unsigned int N1, const unsigned int N2);
+
+ facet(P f(double, double, double),
+ double u0, double v0, double w0,
+ double du, double dv, double dw,
+ const unsigned int N1, const unsigned int N2);
+
+ // for surfaces of rotation
+ facet(double f(double), double g(double),
+ double u0, double v0, double du, double dv,
+ const unsigned int N1, const unsigned int N2,
+ const frame& coords=frame());
+
+
+ facet(P f(double, double),
+ double u0, double v0, double du, double dv,
+ const unsigned int N1, const unsigned int N2, const Color&);
+
+ facet(P f(double, double, double),
+ double u0, double v0, double w0,
+ double du, double dv, double dw,
+ const unsigned int N1, const unsigned int N2, const Color&);
+
+ // for surfaces of rotation
+ facet(double f(double), double g(double),
+ double u0, double v0, double du, double dv,
+ const unsigned int N1, const unsigned int N2, const Color&,
+ const frame& coords=frame());
+
+
+ facet* clone() const;
+
+ double how_far() const;
+
+ bool front_facing() const;
+
+ void draw(int cull) const;
+
+ private:
+ Color m_tint;
+ pen_data m_line;
+ bool m_fill;
+
+ P pt1, pt2, pt3, pt4, center, direction, perp;
+ double distance;
+
+ path bd;
+ };
+
+
+ class by_distance {
+ public:
+ bool operator() (const facet&, const facet&);
+ bool operator() (const facet*, const facet*);
+ };
+} // end of namespace