Layers in a grid need to change the spacing between them

[Dan Ebberts]

The expression would need to know where its layer is in the grid. I think I would let the expression control the grid spacing. You’d have a null named “controls” on the bottom of the layer stack with a Point Control named “Origin” to control the position of the upper-left element of the grid, a slider named “Horiz Spacing” to control the horizontal spacing, one named “Vert Spacing” for vertical spacing, and another named “Number of Columns” to control the number of columns. Then each layer participating in the grid (starting with layer 1) would have this expression:

L = thisComp.layer(“controls”);
origin = thisComp.layer(“controls”).effect(“Origin”)(“Point”);
hSpace = thisComp.layer(“controls”).effect(“Horiz Spacing”)(“Slider”);
vSpace = thisComp.layer(“controls”).effect(“Vert Spacing”)(“Slider”);
nCols = thisComp.layer(“controls”).effect(“Number of Columns”)(“Slider”);

n = Math.round(nCols);
col = (index-1)%n;
row = Math.floor((index-1)/n);
origin + [col*hSpace,row*vSpace]

Dan

[Dan Ebberts]

Oops. That last line should be:

L.toComp(origin) + [col*hSpace,row*vSpace]

Dan