Checkbox to select X value or Y Value of a Layer

[David Conklin]

Something like this should work.

Change the 2 variables at the top to point to your Layer and Checkbox controls. This expression will output the X-Value of the Layer Control Layer if the box is un-ticked, and the Y-Value if it is ticked.

var lyrControl = thisLayer("Effects")("Layer Control")("Layer");
var chkbxControl = thisLayer("Effects")("Checkbox Control")("Checkbox");

if(!chkbxControl.value){
lyrControl.position[0]; // use X-position.
} else {
lyrControl.position[1]; // use Y-Position
}

David Conklin
Motion Designer

[Kevin Snyder]

Thanks David for the input. I appreciate it.

I’m getting an error stating an illegal use of a reserved word. Here is the full expression that I have. I have it working without the check box, but I would love to get it working with the check box to select the x or y value. The overall goal is to select a parent and then map the x or y value to the scale of my “child” layer using sliders to define the range of the parent and the range of the scale for the child… I think I might be in over my head on this one…

x = var lyrControl = thisLayer("Effects")("Parent Select")("Layer");
var chkbxControl = thisLayer("Effects")("Map")("Checkbox");

if(!chkbxControl.value)

{lyrControl.position[0]; // use X-position.}

else

{lyrControl.position[1]; // use Y-Position}

scaleobject=linear(x,effect("Parent Input 02")("Slider"),effect("Parent Input 01")("Slider"),effect("Child Output 02")("Slider"), effect("Child Output 01")("Slider"));
[scaleobject,effect("Fixed Scale")("Slider")]

[David Conklin]

Hey.

In re-purposing my code, I think some typing/syntax errors may have occurred. For instance on line 1, you have ‘x = var lyrControl = thisLayer’. I think you need to retype this as ‘var lyrControl = thisLayer’ or ‘var x = thisLayer’.

Syntax errors also exist on lines 6 and 10, where the ‘//’ (signifying a comment) have caused the closing curly brace to not be computed.

I’ve re-typed the code below. I can’t check it because I don’t have your project setup; however, it is evaluating without syntax errors.

Good luck!

var x = thisLayer("Effects")("Parent Select")("Layer");
var chkbxControl = thisLayer("Effects")("Map")("Checkbox");

if(!chkbxControl.value){
x.position[0]; // use X-position.
}
else{
x.position[1]; // use Y-Position
}

scaleobject=linear( x, effect("Parent Input 02")("Slider"), effect("Parent Input 01")("Slider"), effect("Child Output 02")("Slider"), effect("Child Output 01")("Slider"));
[scaleobject,effect("Fixed Scale")("Slider")]

David Conklin
Motion Designer