Read justification info from text layer.

Question

How to read  justification info from text layer?
myLayer.property("Source Text").value.justification;
return
6612 - Left, 6613 - Right, 6614 - Center  in CS6
6814 - Right, 6813 - Left, 6815 - Center  in CC
it is right for any computer and operating system?

Answer 1

I would try to steer clear of using the numbers, only because they have changed in each version of After Effects and probably will continue to. You should compare the justification value against the ParagraphJustification options. Pg. 185 in the CS6 scripting guide has the list of choices:
TextDocument justification attribute
textDocument.justification Description
The paragraph justification for the text layer.
Type
A ParagraphJustification enumerated value; read-only. One of:
ParagraphJustification.LEFT_JUSTIFY
ParagraphJustification.RIGHT_JUSTIFY
ParagraphJustification.CENTER_JUSTIFY
ParagraphJustification.FULL_JUSTIFY_LASTLINE_LEFT
ParagraphJustification.FULL_JUSTIFY_LASTLINE_RIGHT
ParagraphJustification.FULL_JUSTIFY_LASTLINE_CENTER
ParagraphJustification.FULL_JUSTIFY_LASTLINE_FULL
Here is a simple test function that will alert the justification value when it's matched. You can change the alerts to return whatever code you want based on the justifaction value found.
/*     SAMPLE FUNCTION THAT CHECKS FOR JUSTIFICATION VALUE     */
var myLayer = app.project.item(1).layer(1);
textJustVal(myLayer);
function textJustVal(myLayer){
          var val = myLayer.property("ADBE Text Properties").property("ADBE Text Document").value.justification;
          if(val == ParagraphJustification.LEFT_JUSTIFY){
                    alert("Left");
          }else if(val == ParagraphJustification.RIGHT_JUSTIFY){
                    alert("Right");
          }else if(val == ParagraphJustification.CENTER_JUSTIFY){
                    alert("Justified");
          }else if(val == ParagraphJustification.FULL_JUSTIFY_LASTLINE_LEFT){
                    alert("Lastline Left");
          }else if(val == ParagraphJustification.FULL_JUSTIFY_LASTLINE_RIGHT){
                    alert("Lastline Right");
          }else if(val == ParagraphJustification.FULL_JUSTIFY_LASTLINE_CENTER){
                    alert("Lastline Center");
          }else if(val == ParagraphJustification.FULL_JUSTIFY_LASTLINE_FULL){
                    alert("Lastline Full");
          }else{
                    alert("There must be an error.");