Change coordinate system #4

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opened 2022-09-24 17:11:11 +00:00 by mars · 3 comments

mars commented

2022-09-24 17:11:11 +00:00

Owner

The current coordinate system is:

(0, 0) at the middle of the panel
X goes right, Y goes up
(-1, -1) and (1, 1) are the corner bounds

This sucks! HTML, for example, is Y-down for a reason. Coding UIs that read top-to-bottom is easier when Y increases downwards. Coordinates should also be guaranteed to be square.

Change the coordinate system and all existing UI code to:

(0, 0) at the top-left
X goes right, Y goes down
use logical points for scaling

I don't know how logical points are going to work. It depends on DPI scaling and what VR is expected to use. Perhaps Canary's core library doesn't need to care.

EDIT: it has been decided that Canary's unit measurement is the millimeter.

The current coordinate system is: - (0, 0) at the middle of the panel - X goes right, Y goes up - (-1, -1) and (1, 1) are the corner bounds This sucks! HTML, for example, is Y-down for a reason. Coding UIs that read top-to-bottom is easier when Y increases downwards. Coordinates should also be guaranteed to be square. Change the coordinate system and all existing UI code to: - (0, 0) at the top-left - X goes right, Y goes down - use logical points for scaling I don't know how logical points are going to work. It depends on DPI scaling and what VR is expected to use. Perhaps Canary's core library doesn't need to care. EDIT: it has been decided that Canary's unit measurement is the millimeter.

mars added this to the Launch milestone 2022-09-24 17:11:11 +00:00

mars self-assigned this 2022-09-24 17:21:54 +00:00

mars referenced this issue

2022-09-27 17:59:32 +00:00

Add on_resize() callback #5

mars added a new dependency 2022-09-27 17:59:45 +00:00

#5 Add on_resize() callback

mars commented

2022-10-31 06:05:52 +00:00

Author

Owner

Magpie and the text rendering internals are updated to use the new coordinate system, but the sandbox and the SAO script are not. They need updating as soon as possible.

23d699dfef

Magpie and the text rendering internals are updated to use the new coordinate system, but the sandbox and the SAO script are not. They need updating as soon as possible. 23d699dfef

mars commented

2022-11-01 00:44:14 +00:00

Author

Owner

canary-script and canary-types both use bl and tr for Rect coordinates, but because the Y axis is inverted, all Rects will need to use tl and br instead.

`canary-script` and `canary-types` both use `bl` and `tr` for `Rect` coordinates, but because the Y axis is inverted, all `Rect`s will need to use `tl` and `br` instead.

mars added the

feature

consistency

api change

labels 2022-11-01 06:27:29 +00:00

mars referenced this issue

2022-11-03 04:44:11 +00:00

Fix use of coordinate system in SAO UI #28

mars referenced this issue

2022-11-03 04:45:21 +00:00

Use the new coordinate system in the sandbox #29

mars commented