Is the glass window in front of the device in the bottom?
Yes, the window is in front of the controller.
    src        edge_attr  dst
0     0   to the left of    7
1     0      in front of    4
2     0  to the right of   14
3     0  to the right of    4
4     1   to the left of   19
5     1             near    7
6     1  to the right of    2
7     1  to the right of    9
8     2   to the left of    1
9     2   to the left of   14
10    2   to the left of    3
11    2   to the left of    4
12    3  to the right of    2
13    3  to the right of    9
14    3   to the left of   19
15    4   to the left of    0
16    4           behind    0
17    4  to the right of    2
18    5           behind    0
19    5   to the left of    7
20    6   to the left of   12
21    6   to the left of    7
22    6   to the left of   15
23    7             near    1
24    7  to the right of    5
25    7  to the right of    6
26    7  to the right of   15
27    7  to the right of   12
28    7          next to    1
29    7  to the right of   10
30    7  to the right of    0
31    8   to the left of   17
32    8   to the left of   13
33    8   to the left of   18
34    9   to the left of    1
35    9   to the left of    3
36   10   to the left of    7
37   12   to the left of   15
38   12   to the left of    7
39   12  to the right of    6
40   13  to the right of    8
41   14  to the right of    2
42   14   to the left of    0
43   15  to the right of    6
44   15  to the right of   12
45   15   to the left of    7
46   17  to the right of    8
47   18  to the right of    8
48   19  to the right of    1
49   19  to the right of    3