Level 17 wrong polarizer images

[sjvrijn]

There is a small problem with some polarizers in this level. The polarizers on (i=5, j=7) and (i=8, j=5) have names that do not match their images. Especially for the 5,7 polarizer this can be confusing because it would suggest no polarization adaptation is needed.

(observed in Chrome, Version 64.0.3282.186 (Official Build) (64-bit))

[stared]

@sjvrijn I am not sure if I understand what do you mean. Could you attach a screenshot?

Checked this level and seem to look fine:

[sjvrijn]

I've annotated the polarizers in the level based on their image (arrows) and name (text) in the following screenshot: As you can see, the two polarizers towards the top-left are correct: arrows match the name. For the other two (outlined in red), the arrows don't match the name. For the right-most polarizer, the behavior matches that of the image (a 90 turn is needed), but for the bottom-most, the image suggests that no further polarization change is needed after the top-most filter.

Also in the encyclopedia, the polarization images do not match their names in half the cases (outlined in red)

[stared]

I think I understand the confusion. It is due to projection of 3D object on the 2D board.

• West-East means that its surface is on the line West-East (i.e. for beams going left to right and right to left),
• North-South means that its surface is on the line North-South (i.e. for beams going top to bottom and bottom to top).

They can be rotated on board.

If you have an idea to draw them in a less confusing way, let me know.

[sjvrijn]

Ah, now it makes sense. I'll try to think about it and be sure to let you know if I think of something.