427 |
rotated so that their virtual y-axis points toward a *nadir* |
rotated so that their virtual y-axis points toward a *nadir* |
428 |
at approximately one screen height below the physical screen. |
at approximately one screen height below the physical screen. |
429 |
|
|
430 |
|
.. figure:: nadirGeometry |
431 |
|
:label: fignadirgeom |
432 |
|
:width: 8.45cm |
433 |
|
|
434 |
|
The nadir rotations explained geometrically. The items on screen |
435 |
|
are rotated so that their local vertical axis points to |
436 |
|
the vanishing point (nadir) placed outside the screen. |
437 |
|
|
438 |
|
Interestingly, it appears in our experience |
439 |
|
that the placement of the nadir should |
440 |
|
be an absolute *angle* below the center of the screen from |
441 |
|
the viewer's point of view, rather than related to the size |
442 |
|
of the screen. |
443 |
|
|
444 |
The benefit of the nadir view is not only the appearance |
The benefit of the nadir view is not only the appearance |
445 |
but also it makes the different pieces of text on the screen |
but also it makes the different pieces of text on the screen |
446 |
visually more distinct from each other, |
visually more distinct from each other, |