53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
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// Boost.Geometry
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// Copyright (c) 2018-2019 Barend Gehrels, Amsterdam, the Netherlands.
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_GEOMETRIES_INFINITE_LINE_HPP
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#define BOOST_GEOMETRY_GEOMETRIES_INFINITE_LINE_HPP
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namespace boost { namespace geometry
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{
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namespace model
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{
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//--------------------------------------------------------------------------
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// Structure containing an infinite line.
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// It is written using "General Form", a*x + b*y + c == 0
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// Might be conceptized later. Therefore operations are implemented outside
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// the structure itself.
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template <typename Type = double>
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struct infinite_line
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{
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using type = Type;
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infinite_line()
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: a(0)
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, b(0)
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, c(0)
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, normalized(false)
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{}
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// Horizontal: a == 0, for example y-3=0, y==3
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// Vertical: b == 0, for example x-2=0, x==2
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// Through origin: c == 0
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Type a;
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Type b;
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Type c;
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bool normalized;
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};
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} // namespace model
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_GEOMETRIES_INFINITE_LINE_HPP
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