osgearth显示中文标签

 首先将带有中文的字符串转换成string

void unicodeToUTF8(const wstring &src, string& result)
{
int n = WideCharToMultiByte( CP_UTF8, 0, src.c_str(), -1, 0, 0, 0, 0 );
result.resize(n);
::WideCharToMultiByte( CP_UTF8, 0, src.c_str(), -1, (char*)result.c_str(), result.length(), 0, 0 );
}

osgEarth::Style style;
 osgEarth::Symbology::TextSymbol *textStyle=style.getOrCreateSymbol();
 textStyle->font()="simsun.ttc";//一定要制定一种中文字体，否则即使w2s成功了也无法显示中文
 textStyle->size()=30.0;
 textStyle->encoding()=osgEarth::Symbology::TextSymbol::ENCODING_UTF8;