/usr/include/mapnik/agg/agg_vcgen_stroke.h is in libmapnik-dev 2.2.0+ds1-6build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Anti-Grain Geometry - Version 2.4
// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
#ifndef AGG_VCGEN_STROKE_INCLUDED
#define AGG_VCGEN_STROKE_INCLUDED
#include "agg_math_stroke.h"
namespace agg
{
//============================================================vcgen_stroke
//
// See Implementation agg_vcgen_stroke.cpp
// Stroke generator
//
//------------------------------------------------------------------------
class vcgen_stroke
{
enum status_e
{
initial,
ready,
cap1,
cap2,
outline1,
close_first,
outline2,
out_vertices,
end_poly1,
end_poly2,
stop
};
public:
typedef vertex_sequence<vertex_dist, 6> vertex_storage;
typedef pod_bvector<point_d, 6> coord_storage;
vcgen_stroke();
void line_cap(line_cap_e lc) { m_stroker.line_cap(lc); }
void line_join(line_join_e lj) { m_stroker.line_join(lj); }
void inner_join(inner_join_e ij) { m_stroker.inner_join(ij); }
line_cap_e line_cap() const { return m_stroker.line_cap(); }
line_join_e line_join() const { return m_stroker.line_join(); }
inner_join_e inner_join() const { return m_stroker.inner_join(); }
void width(double w) { m_stroker.width(w); }
void miter_limit(double ml) { m_stroker.miter_limit(ml); }
void miter_limit_theta(double t) { m_stroker.miter_limit_theta(t); }
void inner_miter_limit(double ml) { m_stroker.inner_miter_limit(ml); }
void approximation_scale(double as) { m_stroker.approximation_scale(as); }
double width() const { return m_stroker.width(); }
double miter_limit() const { return m_stroker.miter_limit(); }
double inner_miter_limit() const { return m_stroker.inner_miter_limit(); }
double approximation_scale() const { return m_stroker.approximation_scale(); }
void shorten(double s) { m_shorten = s; }
double shorten() const { return m_shorten; }
// Vertex Generator Interface
void remove_all();
void add_vertex(double x, double y, unsigned cmd);
// Vertex Source Interface
void rewind(unsigned path_id);
unsigned vertex(double* x, double* y);
private:
vcgen_stroke(const vcgen_stroke&);
const vcgen_stroke& operator = (const vcgen_stroke&);
math_stroke<coord_storage> m_stroker;
vertex_storage m_src_vertices;
coord_storage m_out_vertices;
double m_shorten;
unsigned m_closed;
status_e m_status;
status_e m_prev_status;
unsigned m_src_vertex;
unsigned m_out_vertex;
};
}
#endif
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