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/**********************************************************************
* $Id: IntervalSize.cpp,v 1.6 2004/07/02 13:28:27 strk Exp $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2001-2002 Vivid Solutions Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************
* $Log: IntervalSize.cpp,v $
* Revision 1.6 2004/07/02 13:28:27 strk
* Fixed all #include lines to reflect headers layout change.
* Added client application build tips in README.
*
* Revision 1.5 2003/11/07 01:23:42 pramsey
* Add standard CVS headers licence notices and copyrights to all cpp and h
* files.
*
*
**********************************************************************/
#include <geos/indexQuadtree.h>
namespace geos {
bool IntervalSize::isZeroWidth(double mn,double mx){
double width=mx-mn;
if (width==0.0) return true;
double maxAbs=max(fabs(mn),fabs(mx));
double scaledInterval=width/maxAbs;
int level=DoubleBits::exponent(scaledInterval);
return level<=MIN_BINARY_EXPONENT;
}
}
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