Ruler guides were a list kept beside the layers. Each guide is now an
object of its layer or sublayer, always directly in it and above the
layer's art. These behave as on main:
- Guides draw on screen only. Exports (SVG, PDF, PNG, PSD), Fit All,
Select All, the art bounds, clicks and marquees, and a layer's
Pathfinder and Transform effects leave them out. The Layers panel
lists them as guide rows of their layer, the highest guide.list
index first.
- Deleting a layer deletes its guides, and merging layers keeps their
guides in the merged layer.
- The guide commands number guides as guide.list does, in the order
they were made.
New: each guide takes an id from the document's object ids. An object
command given a guide's id fails with an error, and node.move cannot
put a guide into a group or out of its layers. A guide made while an
opacity mask, a symbol or a pattern is edited moves to the top
visible, unlocked layer when editing ends.
File format: native files still save the guides in the document's
guides list, in every file version, so older builds read them. Each
entry may now also carry the guide's id, name, locked and hidden
flags; older builds ignore those fields. Opening a file puts each
saved guide on its layer (on the top visible, unlocked layer when the
file names none or a layer it does not have), and each saved guide
counts against the object limit for opening a file. A ruler guide node
that a file holds below a layer's art moves up to the layer's guides,
and one anywhere else (in a group or another object, beside the
layers, or in a symbol) is removed. Ruler guides read from an .ai file
become guide objects on the layer they were on, numbered in the order
the file lists them.
Measure Type by Glyph Bounds (`typeGlyphBounds`, off by default) is in
Preferences > Type > Glyph Bounds and the Transform panel menu. With it
on, the bounding box, the Transform, Control bar and Properties X, Y, W
and H, `object.setBounds`, the transform tools' reference point and the
Arrange commands measure point type selected on its own by the ink of
its glyphs instead of its em box. A typed W or H scales the live type
until its ink has that size.
- The engine caches each type object's ink in text space with its
layout bounds; the cache is not saved.
- Use Preview Bounds adds the characters' strokes, and type with
geometry effects is measured as drawn. Skewed type is measured by its
outlines.
- Type that draws nothing, area type, type on a path and type inside a
selected group are measured as before. Align and Distribute keep
following Align to Glyph Bounds.
Docs: docs/mcp.md, docs/control-protocol.md, docs/target-app-parity.md,
object.setBounds params text.
dotCooCoo