Element Group Descriptions

• NumElems - This is a single integer representing the number of elements in the mesh.
• NodeIds - This is a 2D array of integers which specifies the node indices that make up each element. The node indices are the array indices of the node locations in the nodes group. The array has an attribute, MaxNumnodes, which is the maximum number of nodes in any element. The size of the NodeIds array is NumElems X MaxNumnodes.
• Types - The integer id defining the type of each element as given in Table 4. This may be either an array of size NumElems where each item in the array is the element type for its corresponding element, or a single integer if all the element types are the same.

Node Group Descriptions

• NumNodes - This is a single integer representing the number of nodes in the mesh.
• Locations - This is a 2D array of doubles for the x, y, and z locations of the mesh nodes. The size of the array is 3 X NumNodes.