Screen coordinates

Discostew

Technically speaking, 720p means 720 lines. With base 0, those lines are designated 0 to 719, just as columns are from 0 to 1279.

Nisse5

@Discostew But the point is that the coordinate system is 1-based, not 0-based as the documentation says.

In docked mode (1080p)

plot(200, 1080, white)

will result in a visible dot at the bottom of the screen. If it would have been a 0-based coordinate system, that dot wouldn't show up.

Discostew

Hmm, just checked, it does range from 1-1080 (docked) on the y axis, and 1-1920 on the x. Yet on the HELP page for plot(), it randomizes the x/y destination based on the screen dimensions, but random() ranges from 0 to one less than the inputted value. Guess we can ask if this is a bug, but in the meantime, if you use 0-based plotting, you can always just add 1 to the overall X/Y coordinates.

Jonboy

Really...?! - you have got to be kidding! this should be 0 to 1919 etc. We will have to fix that.

pianofire

@Jonboy Yes I have noticed that this morning

Discostew

@Jonboy Hehe, it should be an easy fix, yeah?

Myddrak

@Jonboy said in Screen coordinates:

Really...?! - you have got to be kidding! this should be 0 to 1919 etc. We will have to fix that.

but then you'll either need to change gheight/gwidth to return the 0 based value, or we'll need to start subtracting 1 from it?

Nisse5

@Myddrak gheight/gwidth are dimensions, not coordinates.

Myddrak

@Nisse5
yeah, but

for x=1 to gwidth()

vs

for x=0 to gwidth()-1

just sayin
:pensive:

MikeDX

If I were drawing to the screen, I would start at 0 and finish at gwidth(), since that would be 0 to gwidth()-1

for a = 0 to gwidth() loop
print(a)
repeat

would output (sort of)

Myddrak

sorry, my mistake, I missed where for loops don't include the boundary... all good :)

Martin

@Myddrak said in Screen coordinates:

sorry, my mistake, I missed where for loops don't include the boundary... all good :)

To be fair, I’d say it is a little on the quirky side but just one of those things. As long as you know, it’s easy enough to live with.