How can I control the coordinate system?

Hi Dick,

just one thing to add:

reframe() is always working with Points as unit.

+ 20 in Ariel's example will actually add 20 points.

Even if your ruler guides are showing e.g. millimeters.

You cannot use strings with reframe() like one can do with geometric bounds.
E.g. if you want to work with millimeters:

var myNewGeometricBounds = [0,0,"100 mm","70mm"];
app.selection[0].geometricBounds = myNewGeometricBounds;

Instead you first have to convert your intended measurements to points:

// Example:
// Values here meant as millimeters
// Converted to points:
var s = app.selection[0];
var xPlus = UnitValue( 30 , MeasurementUnits.MILLIMETERS).as(MeasurementUnits.POINTS);
var yPlus = UnitValue( 20 , MeasurementUnits.MILLIMETERS).as(MeasurementUnits.POINTS);
var topLeft = s.resolve(AnchorPoint.TOP_LEFT_ANCHOR, CoordinateSpaces.SPREAD_COORDINATES)[0];
var bottomRight = s.resolve(AnchorPoint.BOTTOM_RIGHT_ANCHOR, CoordinateSpaces.SPREAD_COORDINATES)[0];
// reframe() and other transform methods always use points as unit when in comes to coordinates:
s.reframe(CoordinateSpaces.SPREAD_COORDINATES, [topLeft, [bottomRight[0] + xPlus, bottomRight[1] + yPlus]] );

Regards,
Uwe

What Jarek said...

So, if you want to keep it simple, just stick to reading and writing geometricBounds of the object. Just remember that when you're writing the geometricBounds, you have to supply a full array. You can't write myObject.geometricBounds[1] = 30. You'd have to write: myObject.geometricBounds = [1,2,3,4];

However, really it is more correct and better to use reframe(). But in that case, to stay consistent, don't get the bounds of the object with geometricBounds, but with the resolve() method. Something like this:

s = app.selection[0];

topLeft = s.resolve(AnchorPoint.TOP_LEFT_ANCHOR, CoordinateSpaces.SPREAD_COORDINATES)[0];

bottomRight = s.resolve(AnchorPoint.BOTTOM_RIGHT_ANCHOR, CoordinateSpaces.SPREAD_COORDINATES)[0];

s.reframe(CoordinateSpaces.SPREAD_COORDINATES, [topLeft, [bottomRight[0] + 20, bottomRight[1] + 20]]);

Ariel