====== Mesh API ======

  * [[meshapi#getthirdnodeindex|GetThirdNodeIndex]](Node **ppNs, Node * pN0, Node * pN1)
  * [[meshapi#replacenode|ReplaceNode]](Element * pElem, Node * pOld, Node * pNew)

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{{anchor:getthirdnodeindex}}
**int GetThirdNodeIndex(Node %%**%%ppNs, Node * pN0, Node * pN1)**
  *function£ºÔڱ䳤ģʽϹ¹ÔìMemPool¶ÔÏó
  *parameters£º
    - [i]Node %%**%%ppNs£ºchunkµÄ´óС,Æ䷶Χ[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE]
    - [i]Node * pN0£ºchunkµÄ´óС,Æ䷶Χ[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE]
    - [i]Node * pN1£ºchunkµÄ´óС,Æ䷶Χ[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE]
  *return value£ºÎÞ

{{anchor:replacenode}}
**void ReplaceNode(Element * pElem, Node * pOld, Node * pNew)**
  *function£ºÔڱ䳤ģʽϹ¹ÔìMemPool¶ÔÏó
  *parameters£º
    - [i]Element * pElem£ºchunkµÄ´óС,Æ䷶Χ[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE]
    - [i]Node * pOld£ºchunkµÄ´óС,Æ䷶Χ[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE]
    - [i]Node * pNew£ºchunkµÄ´óС,Æ䷶Χ[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE]
  *return value£ºÎÞ