Text Size Constrained By Width X

[Sem Brys]

Something simple I came up with, add it in the scale parameter of the text layer:

myWidth = sourceRectAtTime(time).width;
myHeight = sourceRectAtTime(time).height;
MaxWidth = 500;
MaxHeight = 500;

[100*(MaxWidth/myWidth),100*(MaxHeight/myHeight)];

To explain: it reads the width and height of the text layer (sourcerect) then scales it by the ratio compared to the maximum width or height.
You should connect the MaxWidth and MaxHeigth variables to a slider effect, then it would be something like that:

MaxWidth = effect("MaxWidth")("Slider");

If you want only 1 value, you can remove the MaxHeight and then it would be:

[100*(MaxWidth/myWidth),100*(MaxWidth/myHeight)];

Doesn’t seem to be 100% the pixel value, but maybe it’s good enough ☺ (if I find the time I will try to find out why it’s not 100% the given pixel value)

[Christian Geijer]

This is one way. Apply this to the scale property.

L = thisLayer;
w = L.sourceRectAtTime().width;

maxW = 500;
sca = (maxW/w) * 100;

[sca, sca]

[Sem Brys]

Ok, so it is 100% the given value, I compared with a rectangle that was 500 pixels in width and height, but forgot to turn off the stroke…

[Jamie Nguyen]

These are amazing thank you! I ended up using yours Christian, worked like a charm!

[Jamie Nguyen]

So I’ve been using what Christian came up with and it’s working great. But now instead of 1 line of text in my text layer I want 2 lines. When I add a second line, both lines are not scaled to be 540px but rather only 1 line is. Is there any way to get both lines of text to always scale to 540px?

[Kalleheikki Kannisto]

You need to split to two text boxes with the same expression. You will need to add some code to move one or both of the lines vertically based on the scale so as to adjust the space between the two lines as well.

Kalleheikki Kannisto
Senior Graphic Designer