Tiled map中的polylinePoints点如何读取？？？？

Cocos2d-x
#1

我因为要用来制作box2d的刚体的点，，，需要取到tiled map中object的polyline的点。。。。

<object id="46"name="wall"type="floor"x="0"y="400"width=“1000”>

TMXObjectGroup* objectGroup = map->getObjectGroup("Object1");
ValueVector object = objectGroup->getObjects();

for (ValueVector::iterator it = object.begin(); it != object.end(); it++) {
Value obj = *it;
ValueMap map = obj.asValueMap();

//这些都能取到

    std::string name = map.at("name").asString();
    std::string type = map.at("type").asString();

    int height = map.at("height").asInt();

    int width = map.at("width").asInt();

//这些都能取到，但是下面报错：

    std::string word = map.at("polylinePoints").asString();
    log("字符处啊是==========%s",word.c_str() );

}
报错如下：

Assert failed: Only base type (bool, string, float, double, int) could be converted

Assertion failed: (_type != Type::VECTOR && _type != Type::MAP && _type != Type::INT_KEY_MAP), function asString, file /Users/shadow/game/test/cocos2d/cocos/base/CCValue.cpp, line 603.

.那么问题来了，我该怎么取到polylinePoints里面的点的数据呢？？？？？？？求大神支招

#2

看来只能自己回自己的贴， std::string word = map.at(“polylinePoints”).asValueVector();