Re: CLAMP or LINEAR to limit scale?

Hi David, position and scale are 2- (or 3-) dimensional properties. They have an x and a y component.
Motionscript uses an Array syntax or a list to assign those numbers.
For example: [100,50]
You can retrieve one component from a property by using it's index: x=0, y=1 like this:

x = position[0];
y = position[1];

since the linear() method likes to work with numbers, not lists/arrays, we apply the linear to x and y separately, then put the result back in a 2-dimensional array (because scale will give an error if it only gets a number as a result of the expression):


x_temp = thisComp.layer("UPDOWN").transform.position[0];
y_temp = thisComp.layer("UPDOWN").transform.position[1];

x_result = linear(x_temp, 150, 280, 65, 100);
y_result = linear(y_temp, 150, 280, 75, 100);

[x_result, y_result] ;



I hope that makes sense. You'll have to tweak the numbers in that linear expressions probably.