Patent ID: 7148904

Claim:
A method for merging a first mesh and a second mesh that differ from each other in density, the method comprising: a first step of determining length of an edge of a portion that becomes a boundary between the first mesh and the second mesh; a second step of adjusting size of a first group of polygons including the edge of the portion that becomes the boundary based on the length determined in the first step, and of adjusting size of a second group of polygons other than the first group of polygons so that an adjustment ratio is smaller as a distance between a position of each of the second group of polygons and the portion that becomes the boundary is greater, each of the first and second groups of polygons being part of polygons structuring the first mesh and of polygons structuring the second mesh; and a third step of merging the first mesh and the second mesh in each of which the polygons are adjusted.