11 May 2025 07:58:53 PM

grf_display_opengl():
  C++ version
  This is a program which uses OpenGL
  to display a graph stored in the GRF format.

GRFL_DISPLAY_OPENGL:
  Please enter the "prefix" of the GRF file.

  The number of nodes NODE_NUM = 28
  The number of edges EDGE_NUM = 84

  Number of points     = 28
  Number of lines      = 84
  Number of line items = 168
node_i = 0
0  7
0  1
0  2
node_i = 1
1  13
1  0
1  4
node_i = 2
2  8
2  3
2  0
node_i = 3
3  9
3  6
3  2
node_i = 4
4  12
4  1
4  5
node_i = 5
5  11
5  4
5  6
node_i = 6
6  10
6  5
6  3
node_i = 7
7  24
7  19
7  0
node_i = 8
8  23
8  20
8  2
node_i = 9
9  22
9  14
9  3
node_i = 10
10  21
10  15
10  6
node_i = 11
11  27
11  16
11  5
node_i = 12
12  26
12  17
12  4
node_i = 13
13  25
13  18
13  1
node_i = 14
14  9
14  17
14  18
node_i = 15
15  10
15  18
15  19
node_i = 16
16  11
16  20
16  19
node_i = 17
17  12
17  14
17  20
node_i = 18
18  13
18  15
18  14
node_i = 19
19  7
19  16
19  15
node_i = 20
20  8
20  17
20  16
node_i = 21
21  10
21  26
21  23
node_i = 22
22  9
22  27
22  24
node_i = 23
23  8
23  25
23  21
node_i = 24
24  7
24  22
24  26
node_i = 25
25  13
25  23
25  27
node_i = 26
26  12
26  24
26  21
node_i = 27
27  11
27  25
27  22

  Minimum: 0.102  0.27
  Maximum: 0.83  0.984
  Range:   0.728  0.714
  Pixels:  500  490