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-rw-r--r--graphics/epix/mask_diamond.cc129
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diff --git a/graphics/epix/mask_diamond.cc b/graphics/epix/mask_diamond.cc
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-/*
- * mask_diamond.cc -- ePiX diamond crop mask
- *
- * This file is part of ePiX, a C++ library for creating high-quality
- * figures in LaTeX
- *
- * Version 1.1.10
- * Last Change: August 09, 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 <cmath>
-
-#include "functions.h"
-//#include "errors.h"
-
-#include "constants.h"
-
-#include "pairs.h"
-
-#include "Color.h"
-
-#include "paint_style.h"
-#include "length.h"
-
-#include "pen_line.h"
-#include "pen_fill.h"
-
-#include "edge_data.h"
-#include "screen_crop.h"
-
-#include "screen_mask.h"
-#include "mask_diamond.h"
-
-namespace ePiX {
-
- mask_diamond::mask_diamond(const pair& arg1, const pair& arg2)
- : m_hmin(min(arg1.x1(), arg2.x1())),
- m_hmax(max(arg1.x1(), arg2.x1())),
- m_vmin(min(arg1.x2(), arg2.x2())),
- m_vmax(max(arg1.x2(), arg2.x2()))
- {
- m_border.push_back(edge2d(l(), b(), true));
- m_border.push_back(edge2d(b(), r(), true));
- m_border.push_back(edge2d(r(), t(), true));
- m_border.push_back(edge2d(t(), l(), true));
- }
-
- mask_diamond* mask_diamond::clone() const
- {
- return new mask_diamond(*this);
- }
-
- // corners and midpoints
- double mask_diamond::h_min() const { return m_hmin; }
- double mask_diamond::v_min() const { return m_vmin; }
-
- double mask_diamond::h_max() const { return m_hmax; }
- double mask_diamond::v_max() const { return m_vmax; }
-
- double mask_diamond::h_avg() const { return 0.5*(m_hmin+m_hmax); }
- double mask_diamond::v_avg() const { return 0.5*(m_vmin+m_vmax); }
-
- double mask_diamond::h_size() const { return m_hmax - m_hmin; }
- double mask_diamond::v_size() const { return m_vmax - m_vmin; }
-
- // diamond-specific functions
- bool mask_diamond::crops(const pair& arg) const
- {
- const double x(fabs(arg.x1() - h_avg())/h_size());
- const double y(fabs(arg.x2() - v_avg())/v_size());
-
- return !((x + y) <= 0.5);
- }
-
- std::list<edge2d>& mask_diamond::crop_path(std::list<edge2d>& L) const
- {
- return crop_path_2nd(m_border, L);
- }
-
- std::list<edge2d>& mask_diamond::crop_loop(std::list<edge2d>& L) const
- {
- return crop_loop_2nd(m_border, L);
- }
-
- pen_line mask_diamond::border(const Color& col, const length& len) const
- {
- return pen_line(pen_data(col, len), Xfine(), m_border);
- }
-
- pen_fill mask_diamond::backing(const Color& col) const
- {
- return pen_fill(col, pen_data(col, PLAIN_WIDTH), 0, m_border);
- }
-
- pen_line mask_diamond::border() const
- {
- return pen_line(the_paint_style().line_pen(),
- the_paint_style().base_pen(), m_border);
- }
-
- pen_fill mask_diamond::backing() const
- {
- const Color& col(the_paint_style().fill_color());
- return pen_fill(col, pen_data(col, PLAIN_WIDTH), 0, m_border);
- }
-} // end of ePiX namespace