485 |
|
|
486 |
When a person places papers on a desk, they |
When a person places papers on a desk, they |
487 |
are usually not placed in the same orientation with each other |
are usually not placed in the same orientation with each other |
488 |
(unless explicitly building a grid). |
(unless the person is explicitly building a grid). |
489 |
Rather, the papers are arranged so that the bottom edge of |
Rather, the papers are arranged so that the bottom edge of |
490 |
the page points towards the viewer, i.e. there's a kind of |
each page points towards the viewer, i.e. so that there's a kind of |
491 |
"vanishing point" at the viewer's stomach. |
"vanishing point" at the viewer's stomach. |
492 |
|
|
493 |
We have found that simulating this on a computer screen |
We have found that simulating this on a computer screen |
503 |
are rotated so that their local vertical axis points to |
are rotated so that their local vertical axis points to |
504 |
the vanishing point (nadir) placed outside the screen. |
the vanishing point (nadir) placed outside the screen. |
505 |
|
|
506 |
Interestingly, it appears in our experience |
Interestingly, in our experience, it seems |
507 |
that the placement of the nadir should |
that the placement of the nadir should |
508 |
be an absolute *angle* below the center of the screen from |
be at an absolute *angle* below the center of the screen from |
509 |
the viewer's point of view, rather than related to the size |
the viewer's point of view, rather than related to the size |
510 |
of the screen. |
of the screen. |
511 |
|
|