/*
* This file is part of libgim.
*
* libgim 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 3 of the License, or (at your option) any later
* version.
*
* libgim 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 libgim. If not, see .
*
* Copyright 2010-2015 Danny Robson
*/
#include "extent.hpp"
#include "debug.hpp"
#include "maths.hpp"
#include
///////////////////////////////////////////////////////////////////////////////
template
util::extent::extent (vector _v):
extent (_v.x, _v.y)
{ ; }
///////////////////////////////////////////////////////////////////////////////
template
T
util::extent::diameter (void) const
{
return static_cast (
std::sqrt (
std::accumulate (std::begin (this->data),
std::end (this->data),
T {0},
[] (auto a, auto b) { return a + b * b; })
)
);
}
//-----------------------------------------------------------------------------
template
T
util::extent::area (void) const
{
return std::accumulate (std::begin (this->data),
std::end (this->data),
T {1},
std::multiplies ());
}
///////////////////////////////////////////////////////////////////////////////
template
util::extent
util::extent::expanded (util::vector mag) const
{
return *this + mag;
}
//-----------------------------------------------------------------------------
template
util::extent
util::extent::expanded (T t) const
{
return expanded (util::vector {t});
}
///////////////////////////////////////////////////////////////////////////////
template
bool
util::extent::empty (void) const
{
return almost_equal (area(), 0);
}
///////////////////////////////////////////////////////////////////////////////
template
util::extent
util::extent::operator+ (vector rhs) const
{
extent out;
std::adjacent_difference (std::begin (this->data),
std::end (this->data),
std::begin (rhs.data),
std::plus ());
return out;
}
///////////////////////////////////////////////////////////////////////////////
template
bool
util::extent::operator ==(const extent& rhs) const
{
return std::equal (std::begin (this->data),
std::end (this->data),
std::begin (rhs.data),
almost_equal);
}
///////////////////////////////////////////////////////////////////////////////
template
const util::extent util::extent::MIN { 0 };
//-----------------------------------------------------------------------------
template
const util::extent util::extent::MAX {
std::numeric_limits::max ()
};
///////////////////////////////////////////////////////////////////////////////
namespace debug {
template
struct validator {
static bool is_valid (const util::extent &e)
{
return e.w >= 0 && e.h >= 0;
}
};
}
template bool debug::valid (const util::extent<2,float>&);
template bool debug::valid (const util::extent<2,double>&);
template bool debug::valid (const util::extent<2,uint16_t>&);
template bool debug::valid (const util::extent<2,uint32_t>&);
template bool debug::valid (const util::extent<2,uint64_t>&);
///////////////////////////////////////////////////////////////////////////////
template
std::ostream&
util::operator<< (std::ostream &os, util::extent e)
{
os << "[" << e.w << ", " << e.h << "]";
return os;
}
template std::ostream& util::operator<< (std::ostream&, util::extent<2,uint16_t>);
template std::ostream& util::operator<< (std::ostream&, util::extent<2,uint32_t>);
template std::ostream& util::operator<< (std::ostream&, util::extent<2,uint64_t>);
template std::ostream& util::operator<< (std::ostream&, util::extent<2,float>);
template std::ostream& util::operator<< (std::ostream&, util::extent<2,double>);
//-----------------------------------------------------------------------------
namespace util {
template struct extent<2,uint32_t>;
template struct extent<2,uint64_t>;
template struct extent<2,float>;
template struct extent<2,double>;
}