TFOTS
City Story Export notes
screen dimensions: 3840×2160
individual frame dimensions: 640 x 480
4 x 3 grid:
HORIZONTAL
gaps between each frame = 256px
number of frames 640*4=2560
screen minus frames 3840-2560=1280
spaces next to frames 1280/5=256
VERTICAL
gaps between each frame = 180px
number of frames 480*3=1440
screen minus frames 2160-1440=720
spaces next to frames 720/4=180
COORDINATES
Premiere, annoyingly enough, uses the center of the image as the point from which it measures its position on-screen.
For example, the coordinates of the frame in the upper left corner of a 4×3 grid would be calculated in the following way:
X COORDINATE
gap between screen edge and frame 256px
+ left half of frame 320px
576px
Y COORDINATE
gap between screen top and frame 180px
+ top half of frame 240px
420px
The horizontal frame point would be at 1472px…
576+320 = 896
896+256 = 1152
1152+320 = 1472
All this can be expressed in simple formulae:
X COORDINATE
[starting point]+(framegap x)+(framewidth)
Y COORDINATE
[starting point]+(framegap y)+(frameheight)
[sp]+256+640
X COORDINATES
576
1472
2368
3264
[sp]+180+480
Y COORDINATES
420
1080
1740
So… all the coordinate pairs for a 4×3 grid are:
576,420 1472,420 2368,420 3264,420
576,1080 1472,1080 2368,1080 3264,1080
576,1740 1472,1740 2368,1740 3264,1740
5 x 4 grid:
HORIZONTAL
gaps between each frame = 106px
number of frames 640*5=3200
screen minus frames 3840-3200=640
spaces next to frames 640/6=106
VERTICAL
gaps between each frame = 180px
number of frames 480*4=1920
screen minus frames 2160-1920=240
spaces next to frames 240/5=48
[sp]+106+640
HORIZONTAL COORDINATES
426
1172
1918
2664
3410
[sp]+48+480
VERTICAL COORDINATES
288
816
1344
1872
All the coordinates for a 5×4 grid:
426,288 1172,288 1918,288 2664,288 3410,288
426,816 1172,816 1918,816 2664,816 3410,816
426,1344 1172,1344 1918,1344 2664,1344 3410,1344
426,1872 1172,1872 1918,1872 2664,1872 3410,1872