# Connections Between Triangles and Segments

Data for connections between triangles and segments are given for triangles and segments that share connection points.

GEOMETRIC DATA OF CONNECTIONS SEGMENTS - TRIANGLES Data of triang.data of segm. info of symmetry no. DRENUM DREPOI SEGNUM SEGPOI angle yz xz xy status 1 11 1 360.0000 0 0 0 unknown 15 1 45.0000 33 1 45.0000 55 1 45.0000

Each connection point is assigned a consecutive number which is given in the first column. The column DRENUM gives the number of the triangle at the connection point, while the connecting vertex (1 to 3) is listed in the column DREPOI. Likewise the column SEGNUM gives the connecting segment’s number and the connecting end in the SEGPOI column. If the start point of the segment is connected, SEGPOI=1, else the end point is connected and SEGPOI=2. The column angle gives the angle that is formed by the triangle at the connection point (in degrees). The meaning of the symmetry information in the last four columns is the same as that of the metallic triangles.