@noobboy, If you are talking about the coordinates to use in a huddraw element, then it depends on 2 factors
One is the huddraw_align command. With it you can set the alignment of the HUD (left/center/right and top/center/bottom)
and the other is the huddraw_rect command, which is used to set the exact position of the HUD in pixels.
Now, the position of the 0,0 coordinates used in the huddraw_rect command will depend of the alignment you set with the huddraw_align command.
For example, this code has all the 9 possible alignments of a huddraw element. (you can see the result in the screenshot below).
Please copy it, play with it and try to learn from it before asking something else.
local.index = 33
// LEFT
huddraw_virtualsize local.index 0
huddraw_align local.index "left" "top"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index 0 0 0 0
huddraw_string local.index ".left-top"
huddraw_alpha local.index 1
local.index++
huddraw_virtualsize local.index 0
huddraw_align local.index "left" "center"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index 0 0 0 0
huddraw_string local.index ".left-center"
huddraw_alpha local.index 1
local.index++
huddraw_virtualsize local.index 0
huddraw_align local.index "left" "bottom"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index 0 -14 0 0
huddraw_string local.index ".left-bottom"
huddraw_alpha local.index 1
// CENTER
local.index++
huddraw_virtualsize local.index 0
huddraw_align local.index "center" "top"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index -42 0 0 0
huddraw_string local.index "center.top"
huddraw_alpha local.index 1
local.index++
huddraw_virtualsize local.index 0
huddraw_align local.index "center" "center"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index -42 -15 0 0
huddraw_string local.index "center.center"
huddraw_alpha local.index 1
local.index++
huddraw_virtualsize local.index 0
huddraw_align local.index "center" "bottom"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index -42 -15 0 0
huddraw_string local.index "center.bottom"
huddraw_alpha local.index 1
// RIGHT
local.index++
huddraw_virtualsize local.index 0
huddraw_align local.index "right" "top"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index -60 0 0 0
huddraw_string local.index "right-top."
huddraw_alpha local.index 1
local.index++
huddraw_virtualsize local.index 0
huddraw_align local.index "right" "center"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index -80 0 0 0
huddraw_string local.index "right-center."
huddraw_alpha local.index 1
local.index++
huddraw_virtualsize local.index 0
huddraw_align local.index "right" "bottom"
huddraw_color local.index 1 1 1
huddraw_font local.index "facfont-20"
huddraw_rect local.index -80 -20 0 0
huddraw_string local.index "right-bottom."
huddraw_alpha local.index 1