Changeset 194 for trunk/src/mesh/element.h

Timestamp:

Feb 20, 2006 8:21:24 AM (18 years ago)

Author:

cxsong

Message:

changed data representation

File:

• trunk/src/mesh/element.h (modified) (2 diffs)

trunk/src/mesh/element.h

@@ -7 +7 @@
 #include "util.h"
 
+//
+// RpElement is defined as a list of nodes (by id) connected with each other
+// in a mesh.
+//
+// Example:
+//      int nodeIDs[8];
+//      RpElement elements[10];
+//
+//      // set ids for all elements
+//      for (int i=0; i<10; i++)
+//              elements[i].id(i);
+//
+//      // create node list for element 0
+//      nodeIDs[0] = 0;
+//      nodeIDs[1] = 1;
+//      nodeIDs[2] = 5;
+//      nodeIDs[3] = 6;
+//      nodeIDs[4] = 25;
+//      nodeIDs[5] = 26;
+//      nodeIDs[6] = 30;
+//      nodeIDs[7] = 31;
+//      element[0].addNodes(nodeIDs, 8);
+//
+//      nodeIDs[0] = 1;
+//      nodeIDs[1] = 2;
+//      nodeIDs[2] = 6;
+//      nodeIDs[3] = 7;
+//      nodeIDs[4] = 26;
+//      nodeIDs[5] = 27;
+//      nodeIDs[6] = 31;
+//      nodeIDs[7] = 32;
+//      element[1].addNodes(nodeIDs, 8);
+//
+//      ... 
+//
+//
 
 class RpElement {
 public:
         // constructors
-        RpElement() {  };
-
-        RpElement(int size, int id):
-                m_size(size), 
-                m_id(id)
-        {  
-                m_nodes.resize(size);
+        RpElement()
+        {
+                // default
+                m_nodes(8);
         };
 
+        RpElement(int numNodes, int id)
+        {
+                m_id = id;
+                if (m_nodes.capacity() < numNodes)
+                        m_nodes.resize(numNodes);
+        };
+
+        // instantiate from byte stream:
+        // id(int), numNodes(int), list of ids(int *)
+        RpElement(const char* buf);
+
         // add a node to element
-        void addNode(RpNode& node);
-
-        // add node name - may remove this later
         void addNode(int nodeName);
 
-        // add all nodes to element
-        void setNodes(RpNode* list, int numNodes, int id);
-
-        // set node names
-        RP_ERROR set(int* nodes, int numNodes, int id);
+        // add all the nodes to element
+        RP_ERROR addNodes(const int* nodes, int numNodes);
         
         // get node id's
@@ -51 +89 @@
 
 private:
-        int m_size;
         int m_id;
-        vector<int> m_nodes;
-        vector<RpNode> m_list;
+        vector<int> m_nodes; // list of node ids
 };