EDOBE XDOM TPC Technical Information download pdf (Page 31)

CHAPTER 3: Scripting Illustrator Page-item positioning and dimensions 31

You can see these coordinates in the Info panel when you select or create an object in Illustrator.

For the artboard, the default coordinate origin, (0,0), is the top-left corner, reflected in the

ruler origin

property of the

artboard object. X coordinate values increase from left to right, and Y values increase

from top to bottom. This changed in the CS5 release; to maintain script compatability, a document created

by a script still uses the older system, with the origin at the bottom left of the artboard, and the Y value

increasing from bottom to top. The

page origin property of a document object defines the bottom-left

corner of the printable region of the document as a fixed point.

Each

page item object has width and height properties. The maximum value allowed for the width or

height of a page item is 16348 points.

Art item bounds

Every page item object has three properties that use fixed rectangles to describe the object’s overall

extent:

X The geometric bounds of a page item are the rectangular dimensions of the object’s bounding box,

excluding stroke width.

X The visible bounds of a page item are the dimensions of the object, including any stroke widths.

X The control bounds define the rectangular dimensions of the object, including in and out control

points.

The following figure illustrates these properties, using JavaScript naming conventions.

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 67 68

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EDOBE XDOM TPC Technical Information Page 31