[AS/CC]Resizing a box and its contained image

Well. There is another method:

use a transformation matrix.

/*
Scales the selected object with the image to 50%:
scaleMatrix( .5 , .5 )
through method transform() on the selection.
*/

var mySel = app.selection[0];

var myTransformationMatrix = 
app.transformationMatrices.add
(
{
horizontalScaleFactor:1, 
verticalScaleFactor:1
}
);

myTransformationMatrix = 
myTransformationMatrix.scaleMatrix(.5, .5);

mySel.transform
(
CoordinateSpaces.pasteboardCoordinates, 
AnchorPoint.centerAnchor, 
myTransformationMatrix
);

And that seems to be the solution.

Rectangle plus image scaled in one go.

Here the proof with two overprinting rectangles overlapping perfectly. One scaled with the script above, one scaled with the UI. No shift visible.

Uwe