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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/tikz.cc
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+/*
+ * tikz.cc -- ePiX::tikz output format
+ *
+ * This file is part of ePiX, a C++ library for creating high-quality
+ * figures in LaTeX
+ *
+ * Version 1.1.15
+ * Last Change: September 07, 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 <list>
+
+#include <string>
+#include <sstream>
+
+#include <set>
+
+#include "constants.h"
+
+#include "utils.h"
+
+#include "pairs.h"
+#include "edge_data.h"
+
+#include "Color.h"
+
+#include "path_style.h"
+#include "pen_data.h"
+
+// need to get units from the_picture
+#include "picture_data.h"
+#include "picture.h"
+
+#include "format.h"
+#include "tikz.h"
+
+namespace ePiX {
+
+ tikz::tikz()
+ : m_fill(Neutral()), m_stroke(Black()), m_lwidth(PLAIN_WIDTH),
+ m_units(the_picture().the_unitlength.units()) { }
+
+
+ tikz* tikz::clone() const
+ {
+ return new tikz(*this);
+ }
+
+ // Filled region with specified Cartesian edges, offset, and color
+ std::string tikz::print_fill(const std::list<edge2d>& edges,
+ const pair& offset,
+ const Color& fc,
+ const pen_data& line,
+ const std::string& len) const
+ {
+ std::stringstream obuf;
+ obuf << set_fill_state(fc) << set_pen_state(line);
+
+ // compute attribute string
+ std::stringstream attribs;
+
+ if ( !(fc.is_unset()) )
+ {
+ attribs << "[fill";
+
+ if (fc.alpha() < 1)
+ attribs << ",opacity=" << fc.alpha();
+
+ attribs << "]";
+ }
+
+ obuf << print_paths(edges, offset, attribs.str(), len);
+
+ return obuf.str();
+ }
+
+ // Unfilled region, specified Cartesian edges
+ std::string tikz::print_line(const std::list<edge2d>& edges,
+ const pair& offset,
+ const pen_data& line,
+ const pen_data& base,
+ const path_state& style,
+ const std::string& len) const
+ {
+ std::string value;
+
+ // draw *solid* base first
+ if (line.width() < base.width() && !base.color().is_unset())
+ {
+ std::stringstream battr;
+ battr << "[color=" << format::print(base.color()) << ","
+ << "line width=" << format::print(base.width()) << "]";
+
+ value += format::print_line(edges, offset, base, path_state(),
+ battr.str(), len);
+ }
+
+ value += set_pen_state(line);
+
+ return value += format::print_line(edges, offset, line, style, "", len);
+ }
+
+ // Print color declaration strings: model, name, densities
+ std::string tikz::print_color(const std::string& model,
+ const std::string& name,
+ double d1, double d2,
+ double d3) const
+ {
+ return format::xdefinecolor(model, name, d1, d2, d3);
+ }
+
+ std::string tikz::print_color(const std::string& model,
+ const std::string& name,
+ double d1, double d2,
+ double d3, double d4) const
+ {
+ return format::xdefinecolor(model, name, d1, d2, d3, d4);
+ }
+
+
+ // One-line comment
+ std::string tikz::print_comment(const std::string& msg) const
+ {
+ std::stringstream obuf;
+ obuf << "%% " << msg << std::endl;
+
+ return obuf.str();
+ }
+
+ // verbatim string, newline protected
+ std::string tikz::print_verbatim(const std::string& msg) const
+ {
+ std::stringstream obuf;
+ obuf << msg << "%" << std::endl;
+
+ return obuf.str();
+ }
+
+
+ // start/end a picture-like environment, set unit length
+ std::string tikz::start_picture(const pair& sz, const pair& offset) const
+ {
+ std::stringstream obuf;
+ obuf << "\\begin{tikzpicture}" << std::endl
+ << "\\pgfsetlinewidth{" << format::print(PLAIN_WIDTH) << "}"
+ << std::endl
+ << "\\useasboundingbox " << print(offset)
+ << " rectangle " << print(sz + offset) << ";"
+ << std::endl;
+
+ return obuf.str();
+ }
+
+ std::string tikz::end_picture() const
+ {
+ std::stringstream obuf;
+ obuf << "\\end{tikzpicture}" << std::endl;
+
+ return obuf.str();
+ }
+
+ // Actual work done in start_picture
+ std::string tikz::set_unitlength(const std::string& len) const
+ {
+ return "";
+ /*
+ std::stringstream obuf;
+
+ obuf << "\\setlength{\\unitlength}{1" << len << "}%" << std::endl;
+
+ return obuf.str();
+ */
+ }
+
+
+ void tikz::reset_state() const
+ {
+ m_fill = Neutral();
+ m_stroke = Black();
+ m_lwidth = PLAIN_WIDTH;
+ }
+
+ //// private member functions ////
+ std::string tikz::path_connector() const
+ {
+ return "--";
+ }
+
+
+ std::string tikz::usepackages() const
+ {
+ return "usepackages tikz";
+ }
+
+ // string argument for passing attributes local to this path/loop
+ std::string tikz::start_open_path(const std::string& attribs) const
+ {
+ return "\\draw " + attribs;
+ }
+
+ std::string tikz::end_open_path(const std::string&) const
+ {
+ std::stringstream obuf;
+ obuf << ";" << std::endl;
+
+ return obuf.str();
+ }
+
+ std::string tikz::start_closed_path(const std::string& attribs) const
+ {
+ return "\\draw " + attribs;
+ }
+
+ std::string tikz::end_closed_path(const std::string&) const
+ {
+ std::stringstream obuf;
+ obuf << "--cycle;" << std::endl;
+
+ return obuf.str();
+ }
+
+ // print declarations to set state of output format
+ std::string tikz::set_fill_state(const Color& col) const
+ {
+ std::stringstream buf;
+ if (col != m_fill && !col.is_unset())
+ buf << "\\pgfsetfillcolor{" << format::print(col) << "}" << std::endl;
+
+ m_fill = col;
+ return buf.str();
+ }
+
+ std::string tikz::set_pen_state(const pen_data& pen) const
+ {
+ std::stringstream buf;
+ if (pen.color() != m_stroke)
+ {
+ buf << "\\pgfsetstrokecolor{" << format::print(pen.color()) << "}"
+ << std::endl;
+
+ m_stroke = pen.color();
+ }
+
+ if (pen.width() != m_lwidth)
+ {
+ buf << "\\pgfsetlinewidth{" << format::print(pen.width()) << "}"
+ << std::endl;
+
+ m_lwidth = pen.width();
+ }
+
+ return buf.str();
+ }
+
+ // place a LaTeX box of width zero (containing string) at location (pair)
+ std::string tikz::put_box(const pair& loc, const std::string& msg) const
+ {
+ std::stringstream obuf;
+
+ obuf << "\\pgftext[at={\\pgfpoint{"
+ << truncate(loc.x1()) << m_units << "}{"
+ << truncate(loc.x2()) << m_units
+ << "}}] {" << msg << "}" << std::endl;
+
+ return obuf.str();
+ }
+
+ std::string tikz::print_circle_marker(const pair& here, double diam,
+ bool fill, const Color& color,
+ const std::string& len) const
+ {
+ std::stringstream obuf;
+ obuf << "\\";
+
+ if (fill)
+ obuf << "fill";
+
+ obuf << "draw[color=" << format::print(color) << "] "
+ << print(here) << " circle(" << 0.5*diam << len << ");" << std::endl;
+
+ return obuf.str();
+ }
+
+ std::string tikz::print(const pair& arg) const
+ {
+ std::stringstream o;
+ o << "(" << truncate(arg.x1()) << m_units
+ << "," << truncate(arg.x2()) << m_units << ")";
+ return o.str();
+ }
+} // end of namespace