133 lines
4.5 KiB
C++
133 lines
4.5 KiB
C++
/*
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* Portable Agile C++ Classes (PACC)
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* Copyright (C) 2001-2004 by Marc Parizeau
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* http://manitou.gel.ulaval.ca/~parizeau/PACC
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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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* Contact:
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* Laboratoire de Vision et Systemes Numeriques
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* Departement de genie electrique et de genie informatique
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* Universite Laval, Quebec, Canada, G1K 7P4
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* http://vision.gel.ulaval.ca
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*
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*/
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/*!
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* \file PACC/Math/Vector.cpp
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* \brief Method definitions for class Vector.
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* \author Marc Parizeau and Christian Gagné, Laboratoire de vision et systèmes numériques, Université Laval
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* $Revision: 1.7.2.1 $
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* $Date: 2007/09/10 18:24:08 $
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*/
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#include "Math/Vector.hpp"
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#include "Util/StringFunc.hpp"
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#include <stdexcept>
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using namespace std;
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using namespace PACC;
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/*!
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Vector elements must be enumerated in row order, and seperated by semi-columns (';'), comas (','), or white space (the semi-column is the recommended delimiter). For example:
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\verbatim
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<Vector name="My Vector" size="4">1;2;3;4</Vector>
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\endverbatim
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The number of elements must match the value of the "size" attribute.
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This method also supports the following deprecated markup style:
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\verbatim
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<Vector name="My Vector">
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<Float v="1.2"/>
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<Float v="23.8"/>
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...
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</Vector>
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\endverbatim
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Any read error raises an std::runtime_error exception.
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*/
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string Vector::read(const XML::Iterator& inNode)
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{
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if(!inNode) throw runtime_error("Vector::read() nothing to read!");
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clear();
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for(XML::Iterator lChild = inNode->getFirstChild(); lChild; ++lChild) {
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if(lChild->getType() == XML::eString) {
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// this is the recommended markup style
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istringstream lStream(lChild->getValue());
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Tokenizer lTokenizer(lStream);
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lTokenizer.setDelimiters(" \n\r\t,;", "");
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string lToken;
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while(lTokenizer.getNextToken(lToken)) {
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push_back(String::convertToFloat(lToken));
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}
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} else if(lChild->getType() == XML::eData && lChild->getValue() == "Float") {
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string lValue;
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if((lValue = lChild->getAttribute("v")) != "" || (lValue = lChild->getAttribute("value")) != "") push_back(String::convertToFloat(lValue));
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else if(lChild->getFirstChild() && lChild->getFirstChild()->getType() == XML::eString) push_back(String::convertToFloat(lChild->getFirstChild()->getValue()));
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}
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}
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mCols = 1;
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mRows = vector<double>::size();
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if(inNode->isDefined("size")) {
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unsigned int lSize = String::convertToInteger(inNode->getAttribute("size"));
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if(mRows != lSize) throwError("Vector::read() number of elements does not match the size attribute", inNode);
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}
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string lName = inNode->getAttribute("name");
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if(lName != "") mName = lName;
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return lName;
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}
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/*!
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See Vector::read for a description of the write format. By default, the precision
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of the output is set to 15 digits. This value can be changed using method
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Matrix::setPrecision.
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*/
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void Vector::write(XML::Streamer& outStream, const string& inTag) const
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{
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PACC_AssertM(mCols == 1, "write() invalid vector!");
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outStream.openTag(inTag, false);
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if(mName != "") outStream.insertAttribute("name", mName);
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outStream.insertAttribute("size", mRows);
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if(size() > 0) {
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ostringstream lContent;
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lContent.precision(mPrec);
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for(unsigned int i = 0; i < mRows; ++i) {
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if(i != 0) lContent << ";";
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lContent << (*this)[i];
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}
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outStream.insertStringContent(lContent.str());
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}
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outStream.closeTag();
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}
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/*!
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*/
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ostream& PACC::operator<<(ostream &outStream, const Vector& inVector)
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{
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XML::Streamer lStream(outStream);
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inVector.write(lStream);
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return outStream;
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}
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/*!
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This method uses the first data tag of the parse tree to read the vector. The corresponding tree root is then erased. Any read error throws a std::runtime_error.
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*/
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XML::Document& PACC::operator>>(XML::Document& inDocument, Vector& outVector)
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{
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XML::Iterator lNode = inDocument.getFirstDataTag();
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outVector.read(lNode);
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inDocument.erase(lNode);
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return inDocument;
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}
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