source: trunk/src/mesh/element.h @ 222

#ifndef __RP_ELEMENT_H__
#define __RP_ELEMENT_H__

#include <iostream>
#include <vector>
#include "util.h"

//
// RpElement is defined as a list of nodes (by id) connected with each other
// in a mesh.
//
class RpElement {
public:

        // constructor, set number of nodes and/or element id
        RpElement(int numNodes, int id=0);

        // instantiate from byte stream:
        // id(int), numNodes(int), list of node ids(int *)
        RpElement(const char* buf);

        // add a node to element
        void addNode(int nodeName);

        // add all the nodes to element
        RP_ERROR addNodes(const int* nodes, int numNodes);
        
        // get node id's
        RP_ERROR getNodeIdList(int* list, int& len);

        int id() { return m_id; };
        void id(int id) { m_id = id; };

        int numNodes() { return m_nodes.size(); }; 

        // serialize
        // id(int), numNodes(int), list of ids(int *)
        char* serialize();
        RP_ERROR serialize(char* buf, int buflen);
        RP_ERROR deserialize(const char* buf);

        // serialize RpElement object into xml text
        void xmlString(std::string& xmlText);
        void print();

        virtual ~RpElement() { };

        // TODO
        // void xmlPut();
        // void xmlGet();

protected:
        // constructors, default to 8 nodes
        RpElement();

private:
        int m_id;
        vector<int> m_nodes; // list of node ids

        // total number of bytes in an element:
        //     bytes for all node ids + element id + numberOfNodes
        int numBytes() {
                return ((m_nodes.size()) * sizeof(int) + 2*sizeof(int));
        };
};

#endif