TRIANGULATION_MASK allows a user to remove triangles from a triangulation.



The user supplies a node file and a triangle file, containing

the coordinates of the nodes, and the indices of the nodes that

make up each triangle. Either 3-node or 6-node triangles may

be used.



The program reads the data. Then, for each triangle, it calls

a user routine



function mask = triangle_mask ( dim_num, triangle_order, nodes, coord )



The input to this routine is



Input, integer DIM_NUM, the spatial dimension (should be 2),

-　　 TRIANGULATION_MASK allows a user to remove triangles from a triangulation.



　　 The user supplies a node file and a triangle file, containing

　　 the coordinates of the nodes, and the indices of the nodes that

　　 make up each triangle.　Either 3-node or 6-node triangles may

　　 be used.



　　 The program reads the data.　Then, for each triangle, it calls

　　 a user routine



　　　 function mask = triangle_mask ( dim_num, triangle_order, nodes, coord )



　　 The input to this routine is



　　　 Input, integer DIM_NUM, the spatial dimension (should be 2),