perm filename PAGE17[00,BGB] blob
sn#046249 filedate 1973-06-05 generic text, type T, neo UTF8
~F86. IMAGE NODE FORMAT.
_____________________________________________
word | CW | CCW |
0 | image ring | 3
_____|___________________|___________________|
word | DAD | SON |
1 | film | 1st level | 3
_____|___________________|___________________|
word | type | reloc |
2 | | 33 0000 |
_____|___________________|___________________|
word | | |
3 | --- | --- | 0
_____|___________________|___________________|
word | | |
4 | --- | --- | 0
_____|___________________|___________________|
word | | |
5 | --- | --- | 0
_____|___________________|___________________|
word | | |
6 | --- | --- | 0
_____|___________________|___________________|
Every image belongs to the film pointed to by the DAD link;
the ring of images of the film is formed in the CW and CCW links;
the son of an image is its first level and that first level is the
-1 intensity cut level of the image.
Although an affront to common sense, the counter clockwise
direction about the image ring is positive or later in time and the
clockwise direction is negative or earlier in time. I achieved this
curio by consistently adhereing to the mathematical convention of
counter clockwise as positive; and a day came when counter clockwise
around a ring of real time events was represented in the same manner
as counter clockwise around a polygonal ring of edges.
All the empty space in the image node is reserved for camera
specification data.
~I1973,800;F8- 17 -