这是用c++生成svg的一段代码
一个是建立空的svg文档,一个是加入svg的根节点,你看看吧!
//建立空的SVG文档
BOOL CMXVSVG::CreateNullSVGDocAndPI()
{
HRESULT hr;
hr = CoCreateInstance(MSXML::CLSID_DOMDocument, NULL, CLSCTX_INPROC_SERVER,
MSXML::IID_IXMLDOMDocument, (void**)&m_pSVGDOMDocument);
if(FAILED(hr))
return FALSE;
VARIANT varType;
VARIANT varValue;
BSTR bstrName;
BSTR bstrNameSpaceURI;
MSXML::IXMLDOMNode* pPIISVGDOMNode = NULL;
MSXML::IXMLDOMNode* pTmpISVGDOMNode = NULL;
MSXML::IXMLDOMAttribute* pISVGDOMAttribute = NULL;
MSXML::IXMLDOMNamedNodeMap* pISVGDOMNamedNodeMap = NULL;
VariantInit(&varType);
VariantInit(&varValue);
//构造xml文件的预处理指令
varType.vt = VT_BSTR;
varType.bstrVal = _com_util::ConvertStringToBSTR("processinginstruction");
bstrName = _com_util::ConvertStringToBSTR("xml"); //xml 不能用大写的
bstrNameSpaceURI = _com_util::ConvertStringToBSTR("");
hr = m_pSVGDOMDocument->createNode(varType,bstrName,bstrNameSpaceURI,&pPIISVGDOMNode);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
hr = m_pSVGDOMDocument->appendChild(pPIISVGDOMNode,&pPIISVGDOMNode);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
//为预指令添加standalone 属性
varType.vt = VT_BSTR;
varType.bstrVal = _com_util::ConvertStringToBSTR("attribute");
bstrName = _com_util::ConvertStringToBSTR("standalone");
bstrNameSpaceURI = _com_util::ConvertStringToBSTR("");
hr = m_pSVGDOMDocument->createNode(varType,bstrName,bstrNameSpaceURI,(MSXML::IXMLDOMNode**)&pISVGDOMAttribute);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
varValue.vt = VT_BSTR;
varValue.bstrVal = _com_util::ConvertStringToBSTR("no");
hr = pISVGDOMAttribute->put_nodeValue(varValue);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
hr = pPIISVGDOMNode->get_attributes(&pISVGDOMNamedNodeMap);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
hr = pISVGDOMNamedNodeMap->setNamedItem(pISVGDOMAttribute,&pTmpISVGDOMNode);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
VariantClear(&varType);
VariantClear(&varValue);
return TRUE;
}
//建立根节点
BOOL CMXVSVG::CreateSVGNode()
{
int height=1000;
int width=1000;
VARIANT varType;
VARIANT varValue;
BSTR bstrName;
BSTR bstrNameSpaceURI;
MSXML::IXMLDOMNode* pSVGTmpISVGDOMNode = NULL;
MSXML::IXMLDOMAttribute* pISVGDOMAttribute = NULL;
MSXML::IXMLDOMNamedNodeMap* pISVGDOMNamedNodeMap = NULL;
VariantInit(&varType);
VariantInit(&varValue);
//创建根节点svg
varType.vt = VT_BSTR;
varType.bstrVal = _com_util::ConvertStringToBSTR("element");
bstrName = _com_util::ConvertStringToBSTR("svg");
bstrNameSpaceURI = _com_util::ConvertStringToBSTR("");
HRESULT hr = m_pSVGDOMDocument->createNode(varType,bstrName,bstrNameSpaceURI,&m_pSVGDOMNode);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
hr = m_pSVGDOMDocument->appendChild(m_pSVGDOMNode,&m_pSVGDOMNode);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
//为svg节点加入height属性
varType.vt = VT_BSTR;
varType.bstrVal = _com_util::ConvertStringToBSTR("attribute");
bstrName = _com_util::ConvertStringToBSTR("height");
bstrNameSpaceURI = _com_util::ConvertStringToBSTR("");
hr = m_pSVGDOMDocument->createNode(varType,bstrName,bstrNameSpaceURI,(MSXML::IXMLDOMNode**)&pISVGDOMAttribute);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
varValue.vt = VT_I4;
varValue.lVal =height;
hr = pISVGDOMAttribute->put_nodeValue(varValue);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
hr = m_pSVGDOMNode->get_attributes(&pISVGDOMNamedNodeMap);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
hr = pISVGDOMNamedNodeMap->setNamedItem(pISVGDOMAttribute,&pSVGTmpISVGDOMNode);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
//为svg节点加入width属性
varType.vt = VT_BSTR;
varType.bstrVal = _com_util::ConvertStringToBSTR("attribute");
bstrName = _com_util::ConvertStringToBSTR("width");
bstrNameSpaceURI = _com_util::ConvertStringToBSTR("");
hr = m_pSVGDOMDocument->createNode(varType,bstrName,bstrNameSpaceURI,(MSXML::IXMLDOMNode**)&pISVGDOMAttribute);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
varValue.vt = VT_I4;
varValue.lVal = width;
hr = pISVGDOMAttribute->put_nodeValue(varValue);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
hr = m_pSVGDOMNode->get_attributes(&pISVGDOMNamedNodeMap);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
hr = pISVGDOMNamedNodeMap->setNamedItem(pISVGDOMAttribute,&pSVGTmpISVGDOMNode);
if(FAILED(hr))
{
VariantClear(&varType);
VariantClear(&varValue);
return FALSE;
}
VariantClear(&varType);
VariantClear(&varValue);
return TRUE;
}
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XML.ORG.CN讨论区 - 高级XML应用 → 『 SVG/GML/VRML/X3D/XAML 』 → 各位高手又没有C++和svg编程的书或例子阿，急！！
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2005/1/17 8:40:00
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各位高手又没有C++和svg编程的书或例子阿，急！！
