docs/mcp.md lists the four easingType values. It and the
object.blend.setEasing params text say that a blend made without a
spine takes easingType and ramp once Replace Spine has given it one,
which the set_easing test now checks.
With one whole blend selected, the Selection and Blend tools show two
widgets at the halfway point of its spine. Dragging the upper widget
along the spine sets the color shift (-100 to 100), and dragging the
lower one sets the easing strength (0 to 100). The lower widget shows
only when the steps follow a spine (a replaced spine or Align to Path),
the rule the step placement uses; a blend made without a spine shows
neither. When the boxes of three or more other visible objects hold a
widget's spot, the widget moves out in 16 px steps, up to 144 px, and
its line to the halfway point grows with it. While a widget is held,
the arrow keys step its value by 1 (Shift: by 10), and Escape or a
switch to another tool cancels the drag. A drag is one undo step; a
click or a drag that ends where it started records none.
- object.blend.setEasing sets easingType, ramp and colorShift on one
blend, refuses a hidden or locked blend and easing on a blend without
a spine, and records no undo step when nothing changes.
- BlendSpec::eases_along_spine holds the rule the step placement and
the widget share.
- While a tool is busy, an arrow it claims arrives with the press's
Shift and Alt; before, it always arrived plain.
Docs: docs/mcp.md, docs/target-app-parity.md.
The Blend panel gets a Create Spine menu (Auto, Always, Never) under Make,
and object.blend.createSpine {mode?} sets or reads it. It is kept with the
preferences, is not an undo step and leaves blends already made as they are.
object.blend.make takes createSpine to choose for one new blend.
Auto and Always give every new blend a straight spine, as before. Never
makes a blend without one: its steps sit where a straight spine puts them,
object.blend.info reports hasSpine: false, easing is refused and dimmed,
Reverse Spine and the spine point commands refuse it, Release gives back
no spine path, and Replace Spine gives it a spine. A blend taking more keys
keeps whether it has a spine. Native files save noSpine; older files open
with their spines.
Builds on #5177 by adambelis.
A top-object envelope splits its outline into four sides at four corners
and maps the content onto the Coons patch of those sides. The sides
shared out the content by length, and the corners were the anchors or
curve points nearest the bounding box corners.
Each piece of a side between anchors and corners now takes a share of the
content's width or height in proportion to the length of its control
polygon, spread along the piece by its curve parameter. A straight
segment spreads it evenly by length. A rounded rectangle stays close to
the identity, and the content follows the curves of a side whose segments
differ in size.
Each corner is now the nearest anchor to its bounding box corner among
the sharp anchors that point out of the outline and lie within 47.5% of
the box's width and height from that corner. A handle shorter than
0.01 pt, or tangent unit vectors that differ by 0.01 or more in x or y,
makes an anchor sharp, and the first one along the outline wins a tie.
Without such an anchor, the corner is the outline's nearest point to the
box corner, moved onto the end anchor of its segment within 0.5% of the
segment's parameter. Envelopes opened from .ai files keep the corners the
file saves.
These are VectorCraft's own rules. Existing top-object envelopes redraw by
them. Gradient meshes made from a path keep their sides measured by length.
- crates/doc/src/live/mesh.rs: Coons::from_top_object and the corner
search, used for top-object envelopes.
- EnvelopeKind::TopObject gains an optional `corners` field (anchor
indices); the .ai importer fills it from the mesh's corners.
- Params text of object.envelope.makeWithTopObject, docs/mcp.md
(Envelopes) and a progress line in docs/target-app-parity.md.
An envelope mapped type from its laid-out box: ascent to descent for
point type, the frame for area type. The distorted glyphs then filled
less of the envelope than other art does, with room above the capitals
and below the baseline.
The envelope now maps type from the bounds of its glyph outlines,
underlines and strikethroughs when the type is on its own, in groups
and layers, or used as a clipping path. Inline graphics count by their
boxes. Rotated type and type in perspective map from their outlines as
they are drawn. Make with Mesh,
Make with Top Object and Reset with Mesh without Maintain Shape use
those bounds. Type that draws nothing keeps its laid-out box, and so
does type inside any other object, such as a blend, a repeat or a
symbol instance. Shrink Text to Fit type is measured as it is laid out
on the page.
vectorcraft-text's envelope_ink measures the type, and
register_envelope_ink registers it with the document crate. The engine
session, Renderer::new, live evaluation in vectorcraft-effects and the
.ai reader register it. The document crate keeps the measured boxes per
thread, by object and by a hash of the content, and measures again when
the type, the fonts, the hyphenation exceptions or the transform's
scale or rotation change.
This is VectorCraft's own rule. Envelopes of type made in VectorCraft
and in saved files map from the glyph outline bounds instead of the
type's laid-out box, so they redraw differently.
When Distort Appearance is on and the size a `.ai` saves for an
envelope's contents (`AIDeformArtWidthKey`, `AIDeformArtHeightKey`)
matches the contents' bounds with strokes, the reader now maps the
contents from that stroked box. It used to map them from the geometric
bounds, half a stroke inside that box, so an envelope of stroked art
could differ from its drawn art and keep the drawn art with a note.
Envelope Options hold the box's margins as `boundsMargin`, shares of the
geometric bounds at the top, bottom, left and right. Native files write
them only when they are not zero, and `object.envelope.info` reports
them then. Leaving Edit Contents measures them again when the strokes
reach differently than when Edit Contents began, and the node holds
what they measured then until it leaves. New envelopes have no
margins, so their results do not change. Contents with no width or no
height, such as one straight line, get no margins.
Docs: docs/mcp.md, docs/target-app-parity.md.
Direct Selection kept only one picked point of a blend's spine. Shift-click
now adds a point of the same spine or takes it away, and dragging any picked
point moves them all. object.blend.spine.moveAnchor takes `with`, the other
points to move by as much, with the key objects on them, in one undo step.
A Mesh tool click within the hit tolerance outside a gradient mesh hit the
mesh, but object.mesh.addLine looked for the point inside the outline only
and failed with "point is outside the mesh". The same click on a path's edge
made a 1x1 mesh without the line.
- GradientMesh::locate_within takes a tolerance: a point outside the mesh
within it of the outline gives the nearest point of the edge.
- object.mesh.addLine and object.mesh.create take an optional `tolerance`
(0 by default), and the Mesh tool sends its hit tolerance.
dotCooCoo