This function allows the user to generate elements in an area defined by three lines. After all of the lines are selected, the submenu SELECT OPTION dialog box, as illustrated in Figure 5.3.3 is displayed.
Figure 5.3.3 Select Option dialog box
• TRIANGLE AT CORNER
The user needs to input two numbers, N1 and N2, in the displayed dialog box. The third number will be the N1 element along each line of line 1 and line 2. N2 elements will be along line 3. The triangular elements will be generated at the vertex of line 1 and line 2.
• TRIANGLE ALONG EDGE
The user needs to input only one number, N, in the displayed dialog box. There is N elements along each of the three lines. All triangular elements will be along the third selected line.