Example #1
0
mapnik::value_holder get_params_by_key1(mapnik::parameters const& p, std::string const& key)
{
    parameters::const_iterator pos = p.find(key);
    if (pos != p.end())
    {
        // will be auto-converted to proper python type by `mapnik_params_to_python`
        return pos->second;
    }
    return mapnik::value_null();
}
Example #2
0
mapnik::value_holder get_params_by_key2(mapnik::parameters const& p, std::string const& key)
{
    parameters::const_iterator pos = p.find(key);
    if (pos == p.end())
    {
        PyErr_SetString(PyExc_KeyError, key.c_str());
        boost::python::throw_error_already_set();
    }
    // will be auto-converted to proper python type by `mapnik_params_to_python`
    return pos->second;
}
Example #3
0
mapnik::parameter get_params_by_index(mapnik::parameters const& p, int index)
{
    if (index < 0 || static_cast<unsigned>(index) > p.size())
    {
        PyErr_SetString(PyExc_IndexError, "Index is out of range");
        throw boost::python::error_already_set();
    }

    parameters::const_iterator itr = p.begin();
    std::advance(itr, index);
    if (itr != p.end())
    {
        return *itr;
    }
    PyErr_SetString(PyExc_IndexError, "Index is out of range");
    throw boost::python::error_already_set();
}