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secondo/Algebras/Spatial/LRS.h
2026-01-23 17:03:45 +08:00

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/*
----
This file is part of SECONDO.
Copyright (C) 2004, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO 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 2 of the License, or
(at your option) any later version.
SECONDO 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 SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
----
//[_] [\_]
*/
#ifndef LRS_H
#define LRS_H
/*
6 Struct LRS
This struct implements the Linear Referencing System (LRS) ordering for lines. It basicaly contains
a position to the half segment in the line and its offset in the LRS. A line value will contain an
array ordered by these positions.
*/
struct LRS
{
LRS() {}
LRS( double lrsPos, int hsPos ):
lrsPos( lrsPos ), hsPos( hsPos )
{}
LRS( const LRS& lrs ):
lrsPos( lrs.lrsPos ), hsPos( lrs.hsPos )
{}
LRS& operator=( const LRS& lrs )
{ lrsPos = lrs.lrsPos; hsPos = lrs.hsPos; return *this; }
double lrsPos;
int hsPos;
};
int LRSCompare( const void *a, const void *b );
std::ostream& operator<<(std::ostream& o, const LRS& lrs);
#endif