setup composition height and width via expression

[Dan Ebberts]

No, expressions can only control the value of the property hosting the expression.

Dan

[Rainier Raydán]

Hi Ron!

You can do that only with a Script. You can use mine

{
function myScript(thisObj) {
function myScript_buildUI(thisObj) {
var myPanel = (thisObj instanceof Panel) ? thisObj : new Window("palette", "compSettings RR V01", [0, 0, 300, 300]);

res = "group{orientation:'row', alignment:['fill', 'fill'], alignChildren:['fill', 'fill'],\
mainGroup: Group{orientation:'column', alignment:['fill', 'fill'], alignChildren:['fill', 'fill'],\
sizeGroup: Panel{text:'Panel Name',orientation:'row', alignment:['fill', 'fill'], alignChildren:['fill', 'fill'],\
widthText: StaticText{text:'Width'},\
editWidth: EditText{text:'', characters: 4},\
heightText: StaticText{text:'Height'},\
editHeight: EditText{text:'', characters: 4},\
},\
},\
btnGroup: Group{orientation:'column', alignment:['top', 'top'], alignChildren:['fill', 'fill'],\
runBtn: Button{text:'Run'},\
},\
},\
}"

// Adds resource string to panel
myPanel.grp = myPanel.add(res);

// VARIABLES
var proj = app.project;
var curWidth = myPanel.grp.mainGroup.sizeGroup.editWidth;
var curHeight = myPanel.grp.mainGroup.sizeGroup.editHeight;

var runButton = myPanel.grp.btnGroup.runBtn;

// Assign function to UI elements

runButton.onClick = function (){
var selectedArray = itemSelection();
if(!itemSelection()){
alert("Select at least one composition.");
}else{
app.beginUndoGroup("changeCompWH");
for(a=0;a0){
return itemAry;
}else{
return null;
}
}

// Setup panel sizing and make panel resizable
myPanel.layout.layout(true);
myPanel.grp.minimumSize = myPanel.grp.size;
myPanel.layout.resize();
myPanel.onResizing = myPanel.onResize = function () {this.layout.resize();}

return myPanel;
}

// Build script panel
var myScriptPal = myScript_buildUI(thisObj);

if ((myScriptPal != null) && (myScriptPal instanceof Window)) {
myScriptPal.center();
myScriptPal.show();
}
}

// Execute script
myScript(this);
}

Just put the dimension you want, select one or multiple comps and click the Run buttom.

If you want a slider (I do not recomend this) you can change the editText for a slider in the code.

P.D. : Copy the code into a notepad and save it with .jsx extension. Then open it with File/Scrips/Run Script File…

Bye!

[Ron Grev]

Hello Dan, hello Raineier,

thanks for response.
The Script-Version seems to be good for project.
But when i execute the script i alwas get the warning:

Unable to execute at line 40. Expected: ;

for(a=0;a0){

Whats the mistake?

And is it possible to dock the script-dialogue into the Interface over the ScriptUI Panels Folder?

Thanks a lot!

Ron

[Rainier Raydán]

You can download the file here

https://drive.google.com/open?id=18nkpVfR8P5DDzVYLn_2SYKiWPIaPRDJX

just put this file in the C:\Program Files\Adobe\YOUR VERSION OF AE\Support Files\Scripts\ScriptUI Panels

then you can dock it

[Ron Grev]

Hy Rainier,

thanks a lot but i’m a little bit confused ☺ about the link.

GDrive shows me a cryptic file named:
changeCompWH_RR.jsxbin

☹ mybe a GDrive problem? try a zip?

Tanks, Ron

[Rainier Raydán]

Just download the .jsxbin file.

Also you can download the zip file here:

https://drive.google.com/open?id=1unO24GcuYT_zIkwGADcyGUzQCVN3PGTL

Bye!