oalefdefbase.inl

openaccess读def,lef文件所用的源代码

// *****************************************************************************
// *****************************************************************************
// oaLefDefBase.inl
//
// This file contains the implementation for inline and template member
// functions of classes defined in oaLefDefBase.h file.
//
// *****************************************************************************
// Except as specified in the OpenAccess terms of use of Cadence or Silicon
// Integration Initiative, this material may not be copied, modified,
// re-published, uploaded, executed, or distributed in any way, in any medium,
// in whole or in part, without prior written permission from Cadence.
//
//                Copyright 2002-2005 Cadence Design Systems, Inc.
//                           All Rights Reserved.
//
//  $Author: sailajad $
//  $Revision: 1.1 $
//  $Date: 2005/08/05 01:41:34 $
//  $State: Exp $
// *****************************************************************************
// *****************************************************************************



#if !defined(oaLefDefBase_I)
#define oaLefDefBase_I

BEGIN_LEFDEF_NAMESPACE



// *****************************************************************************
// LefDefBase::getDirection()
//
// This function returns an integer representing the direction of the segment
// formed by the given points.
// *****************************************************************************
inline oaUInt4
LefDefBase::getDirection(const oaPoint	&start,
			 const oaPoint	&end)
{
    if (start.x() == end.x()) {
	if (start.y() > end.y()) {
	    return 4;
	}

	return 0;
    }

    if (start.x() > end.x()) {
	if (start.y() == end.y()) {
	    return 2;
	}

	if (start.y() > end.y()) {
	    return 3;
	}

	return 1;
    }

    if (start.y() == end.y()) {
	return 6;
    }

    if (start.y() > end.y()) {
	return 5;
    }

    return 7;
}



// *****************************************************************************
// LefDefBase::orthoToDiagDBU()
// LefDefBase::diagToOrthoDBU()
//
// These functions convert between orthogonal and diagonal OA DB units.
// The last function converts a real diagonal distance to OA diagonal DB units.
// *****************************************************************************
inline oaInt4
LefDefBase::orthoToDiagDBU(double   x)
{
    oaUInt4 manufGrid = tech()->getDefaultManufacturingGrid();

    return 2 * manufGrid * (oaInt4) ceil(x / (vRoot2 * manufGrid));
}

inline oaInt4
LefDefBase::diagToOrthoDBU(double x)
{
    oaUInt4 manufGrid = tech()->getDefaultManufacturingGrid();

    return 2 * manufGrid * (oaInt4) floor(x / (vRoot2 * manufGrid * 2));
}



END_LEFDEF_NAMESPACE

#endif