136 lines
3.0 KiB
C++
136 lines
3.0 KiB
C++
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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01590 Fachpraktikum "Erweiterbare Datenbanksysteme"
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WS 2014 / 2015
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<our names here>
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//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
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//paragraph [10] Footnote: [{\footnote{] [}}]
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//[TOC] [\tableofcontents]
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[1] Implementation of a Spatial3D algebra
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[TOC]
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1 Includes and Defines
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*/
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#include "Spatial3D.h"
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#include "QueryProcessor.h"
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extern NestedList* nl;
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extern QueryProcessor* qp;
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using namespace std;
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namespace spatial3DOperatorSize {
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/*
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11 Operator ~size~
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Computes the number of triangles of a 3D object (surface3d or volume3d)
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11.1 Type mapping function for operator ~size~
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----
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geo3d --> int
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(For the representation of a geo3d the data structure TransformObject
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is used)
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----
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*/
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ListExpr
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Spatial3dSizeMap( ListExpr args )
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{
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string errmsg = "Expected a surface3d, or a volume3d.";
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if (!nl->HasLength(args, 1)){
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return listutils::typeError(errmsg + " (wrong number of arguments)");
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}
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if( !Surface3d::checkType(nl->First(args)) &&
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!Volume3d::checkType(nl->First(args)) ){
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return listutils::typeError(errmsg);
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}
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return ( nl->SymbolAtom( CcInt::BasicType() ));
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}
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/*
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11.2 Value mapping function of operator ~size~
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*/
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int
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Spatial3dSize( Word* args, Word& result, int message,
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Word& local, Supplier s )
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{
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result = qp->ResultStorage( s );
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CcInt* res = static_cast<CcInt*>(result.addr);
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TriangleContainer* c = static_cast<TriangleContainer*>(args[0].addr);
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if(!c->IsDefined()){
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res->SetDefined(false);
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return 0;
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}
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res->Set(true,c->size());
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return 0;
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}
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/*
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11.3 Specification of operator ~size~
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*/
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OperatorSpec sizeSpec(
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"geo3d --> int",
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"size()",
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"Computes the number of triangles of a 3D object (surface3d or volume3d).",
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"query size([const surface3d value (((0 0 0) (0 1 0) (1 1 0)) "
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"((1 1 0) (0 1 0) (1 1 2)))])"
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);
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/*
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11.4 Definition of operator ~size~
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*/
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Operator* getSizePtr(){
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return new Operator(
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"size",
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sizeSpec.getStr(),
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Spatial3dSize,
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Operator::SimpleSelect,
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Spatial3dSizeMap
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);
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}
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} // end of namespace spatial3DOperatorSize
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