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/*
* Copyright (c) 2015 Tricoire Sebastien 3dsman@free.fr
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
*/
#include "OE_utils.h"
BoundingBox::BoundingBox(float minX, float minY, float maxX, float maxY)
{
min.x = minX;
min.y = minY;
max.x = maxX;
max.y = maxY;
init = true;
}
const vector_2d& BoundingBox::getMax()
{
return max;
}
const vector_2d& BoundingBox::getMin()
{
return min;
}
const vector_2d BoundingBox::getCenter()
{
return (min+max)/2;
}
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void BoundingBox::operator += (const BoundingBox& box)
{
if (!box.init)
return;
if (!init)
{
min = box.min;
max = box.max;
init = true;
return;
}
min.x = std::min(min.x,box.min.x);
min.y = std::min(min.y,box.min.y);
max.x = std::max(max.x,box.max.x);
max.y = std::max(max.y,box.max.y);
}
void BoundingBox::operator += (const vector_2d& point)
{
if (!init)
{
min.x = point.x;
max.x = point.x;
min.y = point.y;
max.y = point.y;
init = true;
return;
}
min.x = std::min(min.x,point.x);
min.y = std::min(min.y,point.y);
max.x = std::max(max.x,point.x);
max.y = std::max(max.y,point.y);
}
BoundingBox BoundingBox::operator + (const BoundingBox& box)
{
if (init)
{
if(box.init)
return BoundingBox(std::min(min.x,box.min.x),std::min(min.y,box.min.y),std::max(max.x,box.max.x),std::max(max.y,box.max.y));
else
return BoundingBox(min.x,min.y,max.x,max.y);
}
else
if(box.init)
return BoundingBox(box.min.x,box.min.y,box.max.x,box.max.y);
return BoundingBox();
}
BoundingBox BoundingBox::operator + (const vector_2d& point)
{
if(init)
return BoundingBox(std::min(min.x,point.x),std::min(min.y,point.y),std::max(max.x,point.x),std::max(max.y,point.y));
else
return BoundingBox(point.x,point.y,point.x,point.y);
}