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记录一些TinyXml使用指南(3)

2006-08-01 13:10 267 查看

#include <iostream>
#include <fstream>
#include "tinyxml.h"

using namespace std;

int main()
{
string filename = "first.xml";
TiXmlDocument* doc = new TiXmlDocument(filename.c_str());

//////////////////////////////////////////////////////////////////////////
// 在这里复制文件
//////////////////////////////////////////////////////////////////////////
std::ifstream ifs(filename.c_str());
char buffer[1024];
char c, *p = buffer;
while(ifs.get(c))
{
*p++=c;
}
*p = 0;
ifs.close();
//////////////////////////////////////////////////////////////////////////

if(!doc->Parse(buffer))
{
cout << doc->ErrorDesc() << endl;
}

const TiXmlElement* root = doc->RootElement();
for( const TiXmlNode* child = root->FirstChild();
child;
child=child->NextSibling())
{
OutputDebugStringA(child->Value());

/*
生成一个StaticBox

<staticbox mesh="crate.mesh">
<position x="-8" y="2" z="4" />
<dimension x="2" y="4" z="2" />
</staticbox>

*/
if((child->Type() == TiXmlNode::ELEMENT) && (!strcmp(child->Value(),"staticbox")))
{
const TiXmlElement *box = (const TiXmlElement*)child;

double px, py, pz;
double dx, dy, dz;

std::string mesh;
mesh = box->Attribute("mesh");

for(const TiXmlNode *sub_tag = box->FirstChild(); sub_tag; sub_tag = sub_tag->NextSibling() )
{
if(sub_tag->Type() == TiXmlNode::ELEMENT)
{
const TiXmlElement *sub_element = (const TiXmlElement*)sub_tag;

if(!strcmp(sub_tag->Value(),"position"))
{
px = (sub_element->Attribute("x",&px))?px:0.0;
py = (sub_element->Attribute("y",&py))?py:0.0;
pz = (sub_element->Attribute("z",&pz))?pz:0.0;
}
else if(!strcmp(sub_tag->Value(),"dimension"))
{
dx = (sub_element->Attribute("x",&dx))?dx:1.0;
dy = (sub_element->Attribute("y",&dy))?dy:1.0;
dz = (sub_element->Attribute("z",&dz))?dz:1.0;
}
}
}

cout << "<StaticBox>/n";
cout << "/tPosition = (" << px << ", " << py << ", " << pz << ")/n";
cout << "/tDimension = (" << dx << ", " << dy << ", " << dz << ")/n/n";
}
}

delete doc;

getchar();
return 0;
}

然后在项目的文件夹中加入一个xml文件,如下:

<?xml version="1.0" encoding="utf-8" ?>
<Scene>
<staticbox mesh="crate.mesh">
<position x="-8" y="2" z="4" />
<dimension x="2" y="4" z="2" />
</staticbox>
<staticbox mesh="crate.mesh">
<position x="3" y="2" z="4" />
<dimension x="2" y="4" z="2" />
</staticbox>
</Scene>

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