MODELING APPARATUS AND MODELING METHOD

A modeling apparatus calculates, with respect to edges in a three-dimensional mesh model, an evaluation value of each edge on the basis of the length of the edge, and selects the edges one by one as a first edge in ascending order of their evaluation value. In this connection, a lower evaluation value is calculated for a shorter edge. Then, if there is a specific node placement position where a value of a calculation formula using distances between the node placement position and each first face having either one of first nodes at both ends of the selected first edge as a vertex is lower than or equal to a threshold, the modeling apparatus removes the first edge, first nodes, and first faces from the three-dimensional mesh model, and adds a second node at the specific node placement position in the three-dimensional mesh model.