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/*
* path_data.h -- ePiX implementation classes for polygons and paths
*
* This file is part of ePiX, a C++ library for creating high-quality
* figures in LaTeX
*
* Version 1.2
* Last Change5: May 04, 2008
*/
/*
* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
* Andrew D. Hwang <ahwang -at- holycross -dot- edu>
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef EPIX_PATH_DATA
#define EPIX_PATH_DATA
#include <list>
#include <vector>
#include "triples.h"
#include "edge_data.h"
namespace ePiX {
class Camera;
class Color;
class halfspace;
class pen_data;
class screen;
class Sphere;
// sequence of vertices
class path_data {
public:
path_data();
path_data(const std::vector<P>&, bool closed=false, bool filled=false);
path_data(const std::list<edge3d>&, bool closed=false, bool filled=false);
path_data* clone() const;
// add points
path_data& pt(const P&);
// concatenate path_data segments
path_data& operator+= (path_data);
// concatenate, reversing second sequence
path_data& operator-= (path_data);
bool is_closed() const;
bool is_filled() const;
// make loop and prevent subsequent additions of points
path_data& close();
// (un)set fill flag if closed
path_data& fill(const bool arg=true);
path_data& clip();
path_data& clip_to(const halfspace&);
// assumes path already lies on sphere
path_data& clip_to(const Sphere&, const P& viewpt, bool back=false);
void photo(screen&, const Camera&, const Color& fill,
const pen_data& line, const pen_data& base) const;
std::vector<P> data() const;
void draw() const;
void draw(const Color&, const pen_data&) const;
private:
bool m_closed;
bool m_filled;
std::list<edge3d> m_data;
}; // end of class path_data
} // end of namespace
#endif /* EPIX_PATH_DATA */
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