C++ (Cpp) isNumberDigit示例

示例#1

文件： kmlnode.cpp 项目： garnertb/gdal

static
Coordinate* ParseCoordinate(std::string const& text)
{
    int pos = 0;
    const char* pszStr = text.c_str();
    Coordinate *psTmp = new Coordinate();

    // X coordinate
    psTmp->dfLongitude = CPLAtof(pszStr);
    while(isNumberDigit(pszStr[pos++]));

    // Y coordinate
    if(pszStr[pos - 1] != ',')
    {
        delete psTmp;
        return NULL;
    }

    psTmp->dfLatitude = CPLAtof(pszStr + pos);
    while(isNumberDigit(pszStr[pos++]));

    // Z coordinate
    if(pszStr[pos - 1] != ',')
    {
        psTmp->bHasZ = FALSE;
        psTmp->dfAltitude = 0;
        return psTmp;
    }

    psTmp->bHasZ = TRUE;
    psTmp->dfAltitude = CPLAtof(pszStr + pos);

    return psTmp;
}

示例#2

文件： kmlnode.cpp 项目： 469447793/World-Wind-Java

Coordinate* ParseCoordinate(std::string const& text)
{
    std::string::size_type pos = 0;
    Coordinate *psTmp = new Coordinate();

    // X coordinate
    while(isNumberDigit(text[pos++]));
    psTmp->dfLongitude = atof(text.substr(0, (pos - 1)).c_str());

    // Y coordinate
    if(text[pos - 1] != ',')
    {
        delete psTmp;
        return NULL;
    }
    std::string tmp(text.substr(pos, text.length() - pos));
    pos = 0;
    while(isNumberDigit(tmp[pos++]));
    psTmp->dfLatitude = atof(tmp.substr(0, (pos - 1)).c_str());
    
    // Z coordinate
    if(tmp[pos - 1] != ',')
    {
        psTmp->bHasZ = FALSE;
        psTmp->dfAltitude = 0;
        return psTmp;
    }
    tmp = tmp.substr(pos, tmp.length() - pos);
    pos = 0;
    while(isNumberDigit(tmp[pos++]));
    psTmp->bHasZ = TRUE;
    psTmp->dfAltitude = atof(tmp.substr(0, (pos - 1)).c_str());

    return psTmp;
}