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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/constants.h
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+/*
+ * constants.h -- ePiX's hidden compile-time constants
+ *
+ * This file is part of ePiX, a C++ library for creating high-quality
+ * figures in LaTeX
+ *
+ * Version 1.1.15
+ * Last Change: September 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
+ */
+
+#ifndef EPIX_CONSTANTS
+#define EPIX_CONSTANTS
+
+#include "length.h"
+
+namespace ePiX {
+
+ // See lengths.cc for units conversion factors
+
+ //// Style Parameters -- min, default, max ////
+ // standard pen widths
+ const length PLAIN_WIDTH("0.4pt");
+ const length BOLD_WIDTH("0.8pt");
+ const length BBOLD_WIDTH("1.2pt");
+
+
+ // dot diam in pt
+ const double MIN_DOT(1);
+ const double AVG_DOT(4);
+ const double MAX_DOT(36);
+
+ // page length of dash pattern in pt
+ const double MIN_SEP(4);
+ const double AVG_SEP(12);
+ const double MAX_SEP(36);
+
+ // axis tick half-lengths
+ const double MIN_TICK(1);
+ const double AVG_TICK(3);
+ const double MAX_TICK(8);
+
+ // arrow head parameters
+ const double MIN_AWIDTH(1);
+ const double AVG_AWIDTH(3);
+ const double MAX_AWIDTH(12);
+
+ const double MIN_ARATIO(1);
+ const double AVG_ARATIO(5.5);
+ const double MAX_ARATIO(8);
+
+ const double MIN_INSET(-1);
+ const double AVG_INSET(0);
+ const double MAX_INSET(0.95); // not 1, so head can be hatched
+
+
+ // too small/large
+ const double EPIX_EPSILON(0.0001); // 10^-4 (prints as decimal)
+ const double EPIX_INFTY(100000.0); // 10^5
+
+ // Numerical constants
+ const double PI_180(0.01745329251994329577);
+ const double TWO_PI(6.28318530717958647692);
+
+ // smallest distance from camera to clipping plane
+ const double MIN_CLIP(0.01);
+
+ // No more than this many minor ticks per segment in log axis
+ const unsigned int MAX_LOG_BASE(100);
+
+ // For output
+ const unsigned int DEF_PRECISION(6);
+ const unsigned int MAX_PRECISION(20);
+
+ // In calculus plotting, the interval between adjacent points is too large
+ // for accuracy. Divide each such interval into this many subintervals
+ const unsigned int EPIX_ITERATIONS(200);
+
+ // Output-formatting constants:
+ const unsigned int EPIX_NUM_PTS(120); // # of points in ellipses, splines
+ const unsigned int EPIX_FILE_WIDTH(70); // Width of output file
+
+} // end of namespace
+
+#endif /* EPIX_CONSTANTS */