Place, Open and relink read a CMYK or grayscale TIFF with an alpha
channel through extra_samples_tiff_rgba, which cut every 16-bit sample
to its high byte before converting it. A faint ink or a low alpha was
lost: cyan 129 at full alpha showed as white, and an alpha of 129
became fully transparent.
The samples are now normalized at the depth the file stores them, and
only the resulting color and alpha are rounded to 8 bits (a 16-bit
alpha to the nearest 8-bit value). Associated alpha is divided out at
16 bits. A pixel whose associated alpha is zero now has no color,
instead of keeping its stored color. TIFF 6.0's Associated Alpha
Handling section states this arithmetic and the zero-alpha rule for
RGB data; applying them to CMYK and gray samples is VectorCraft's own
rule.
Character panel > Tsume, shown with Show East Asian Options, takes away a
percentage of the blank space on each side of a character's ink, inside
its own width, in horizontal type. The value is from 0 to 100, 0 by
default. 50 halves that space and 100 sets the ink against the
characters before and after it; the glyph keeps its shape. A character
without ink, such as a space, keeps its width, and a ligature or a
letter with its marks takes the value of its first character. The
font's pair kerning, tracking, manual kerning and Insert Aki are added
after it, and justification keeps it. Vertical type keeps its spacing.
- text.setFormat and text.setRangeStyle take `tsume`; a value that is
not a number or is outside 0 to 100 is refused, naming the key.
Character styles carry it, and a file holding a value outside the
range opens with the nearer end.
- The Character panel's Tsume field has 0, 25, 50, 75 and 100 in its
menu, and Reset Panel sets it to 0. Character Style Options shows it
in Advanced Character Formats.
- Live SVG text places each character Tsume moves, and type on a path
with Tsume is written as outlines.
Docs: docs/mcp.md (Tsume, Character Style Options fields),
docs/target-app-parity.md.
After Reset Bounding Box on a turned symbol instance, Break Link to
Symbol and Object > Expand gave the art a box turned with the instance's
transform again. The art's boxes now turn with the instance's own box,
so they stand square when the instance's box did, and the angles the
art has inside the symbol are kept relative to it. The group that an
instance's opacity, blending mode or opacity mask adds around the art
takes the instance's box angle instead of standing square to the page.
A reflected instance can hold a box 180 degrees from the box its
transform gives in one step; the art now takes the instance's box
there too, the same rectangle with its handles where the instance had
them.
Compound shapes and Pathfinder receive an instance's art through the
same rule.
The clip groups and clip paths that 9-slice guides make for gradient
and pattern art take the angle of the cell that places them, and the
outer group keeps the object's angle turned by the instance, instead
of standing square to the page. This also changes the result for an
instance that was never reset: a 20 degree sliced instance gave clip
groups at 0 degrees and now gives them at 20.
Docs: params text, docs/mcp.md, docs/target-app-parity.md.
A symbol instance colored with the Symbol Stainer lost its stain in
export whenever the canvas's stained art was not used:
- An instance with geometry effects was reshaped for export from the
symbol's art with only its dynamic changes, so SVG, PDF, EPS, .ai,
DXF, EMF/WMF and HPGL wrote the unstained colors. A color adjustment
on an instance recolored the unstained art the same way.
- PDF, EPS, legacy .ai, DXF and EMF/WMF wrote an instance without
effects from the unstained art.
tint_node, stain and instance_art now live in
vectorcraft_doc::symbol_overrides, which both the effects and the
exporters can use; vectorcraft_brush re-exports them. Baking, color
adjustments and the writers above now use instance_art: dynamic changes
first, then the stain.
Node::strip_ruler_guides and Node::map_ruler_guide_positions asked a
layer whether its whole subtree held a ruler guide, then asked each
sublayer the same question again when filtering the children and again
when the recursive call started. A layer nested d deep was tested
2d + 1 times, so a chain of N layers cost about N^2 layer tests.
strip_ruler_guides runs when a document's objects are placed or pasted
(Clipboard::from_document), when a copy of the document is saved
(Document::guides_to_saved) and when a temporary editing layer is
removed (Document::remove_edit_layer). map_ruler_guide_positions runs
when an imported EPS is scaled.
A new held_guides reads the layer once and records which children are
ruler guides and which sublayers hold one; strip_held and map_held then
visit and copy only those sublayers. The guides removed, the order f is
called in, the art and its order, and the sharing of layers without a
guide are the same as before. Neither method records an undo step.
Deleting ruler guides and moving or scaling an artboard's guides asked
each layer whether its whole subtree held a matching guide, then asked
every sublayer the same question again on the way down. A layer nested
N deep was scanned N times, so a chain of N layers cost N(N+1)/2 layer
scans.
One read walk now records which children match and which sublayers hold
a match, and the edit visits and copies only those layers. The guides
removed, the count returned, the selection, the order the guides are
changed in and the sharing of untouched layers are the same as before.
The same walk replaces the repeated subtree scans in the other guide
edits in this file:
- tidying the ruler guides of an opened file (guides below art, in
objects, in opacity-mask art, in symbols and patterns)
- saving the guides as a list
- removing an editing layer while keeping its guides
A graph series kept a gradient with the document coordinates it had on
the one mark it was stored from, and gave that paint unchanged to every
mark when the graph was drawn again. The other marks showed the gradient
placed over the edited mark, and the placement stayed behind when the
data or the graph moved the marks.
The graph now stores a gradient relative to the unit box of the mark it
comes from (its geometric bounds, or its stroke's box for a stroke).
Each path of the series, the legend swatch and a Filled Lines band
included, takes it on its own box. Every store route does this:
paint.setFill and paint.setStroke, the Eyedropper, graphic styles,
Appearance commands, paint.setGradientGeom and the freeform point
edits. A command that writes a mark's paint as the graph drew it leaves
the stored gradient as it is and records no undo step.
The series paints save this as fillUnitBox and strokeUnitBox. A
gradient in a file saved without these flags is drawn where it was
stored. So is a gradient stored from a path with no width or height.
Docs: docs/mcp.md, the paint.setGradientGeom params text and the Graphs
line in docs/target-app-parity.md.
When a read document is brought within the canvas, each saved guide was
checked against the removed artboard ids and the removed layer ids with
linear scans, and each guide node against the removed artboard ids, so
the work grew with the number of guides times the number of removed ids.
The ids are now collected into ordered sets, and each guide is checked
in logarithmic time.
Removing what lies beyond the canvas scanned each container's whole
subtree to see whether anything reached beyond, then scanned each child
again while removing, one level down at a time, so a deeply nested
object was measured once for every group around it. Removing guide nodes
probed each layer's subtree the same way before descending into its
sublayers. Both now make one read-only walk that records, by index,
which objects reach beyond (or which guides are removed), and the
removal follows that record. The objects clipped by a clipping path
beyond the canvas are still not measured.
Containers with nothing to remove are still not copied. The objects and
guides that remain, their order, the counts, the retired artboard ids
and the saved selections are unchanged.
Spreading two keys along a spine whose length overflows splits nothing, so
it returned the end anchors, and a closed spine was then opened at its start.
spread_anchors now rejects a length that is not finite before it makes any
target, so two keys get no anchors and the path stays as it was, as for
three or more keys.
A fill or stroke row that the Appearance commands gave a graph label, its
object opacity, and the characters the Eyedropper gave it lasted only
until the graph was drawn again: the graph stored nothing for a label's
rows, and the Eyedropper's character attributes were not stored.
- The graph keeps, for value axis numbers, category labels and legend
labels, the paint, weight, opacity and blend mode of a label's topmost
visible fill and stroke row, their order and place relative to the
Characters row, and the label's object opacity and blend mode
(labelStyles valuesRows, categoriesRows, legendRows). Every label of
the kind gets those rows when the graph is drawn again, with a placed
gradient fitted to each label.
- Every appearance.* command stores them, and so do graphicStyle.apply
and redefine and the paint, stroke, gradient and transparency edits
aimed at a row, even when the label already showed them.
transparency.set without a row and object.setProps store only the
object opacity and blend mode. With several labels of a kind, the last
one edited wins.
- appearance.copyFrom onto all of a label's text stores the character
attributes it applied and, from type, the paragraph attributes; a
transparency pick stores the object opacity and blend mode, and
append stores the rows.
- paint.setFill and paint.setStroke store a character fill or stroke
only when the characters take the paint (the whole label, or all of
its text highlighted with the Type tool); aimed at a row, they store
the row.
- Document Color Mode and swatch edits reach the kept rows.
Docs: docs/mcp.md, the commands' params text, docs/target-app-parity.md.
Giving the keys of a blend whose spine came from Replace Spine anchors of
their own flattened and measured the whole spine again for every key,
then walked its segments one by one. 1,000 keys on a spine of 4,096
segments flattened it 999 times.
The spine is now flattened once into one buffer. A split flattens only
its two halves and measures the segments after it again, in order, only
as far as the next key, so the arc lengths are summed as before and the
keys get the same anchors. A binary search finds each key's segment.
A spine so large that its length overflows no longer gets an anchor
split at a parameter that is not a number: spreading keys along it
returns nothing and leaves it as it was.
stops and stop flattened the path twice, once for the points and once
for its length, and stop did both before rejecting an index past the
last object. place validated the path with attachable_path first, and
transform measured the old and new paths up to three times each.
A private Measured value now holds the flattened first subpath with its
length and closed flag, and path_length, stops, stop and transform use
it. stop returns None for an out-of-range index without measuring, and
a move of the group measures no path.
attachable_path now uses path_length, so a path whose length overflows
to infinity is no longer offered as one objects can attach to when
placement cannot measure it.
In SVG and PDF output, each piece of a warped image whose pieces can show
through was drawn through a mask of every later piece that reaches it. On a
later piece's antialiased edge the viewer multiplies the earlier piece's
coverage by the mask and draws the later piece over it, so an image with
both opaque and partly transparent pixels came out lighter at its opaque
pixels along the triangles' edges (alpha 184 of 255 in the new SVG test).
A later piece now goes into an earlier piece's mask only when a pixel of
either piece's image within 2 pixels of their overlap is less than opaque
(vectorcraft_effects::WarpSeams). Where two pieces overlap over opaque
pixels, the later one is drawn over the earlier one without a mask.
Type with an inline graphic was resolved only in the layers, so type in
the art of another symbol, a graph design, a pattern tile or an opacity
mask kept the size its graphic had when it was made. The symbol holding
that type, its instances and the inline graphics that show it were
measured from the stale layout.
- Inline graphics are resolved in every tree that holds type. Symbols
are resolved in dependency order, so a symbol's type is laid out
before the type that shows that symbol inline. Edits, opening,
reverting and Refresh Font List use the same pass.
- The pass visits each object once: it resolves the children first and
copies a node only when something below it changed. It measures each
symbol's art once per pass.
- An inline graphic of a symbol whose art shows that symbol inline,
directly or through other symbols, is an empty slot. The symbols on
such a cycle are found once and cached until the symbols change.
- A changed inline graphic also clears the text's cached baselines.
Edit > Edit Colors > Convert to Indexed Color... (edit.colors.toIndexed)
stores the embedded images in the selection as indexed-color PNGs: a
palette of at most 256 RGB colors, each pixel the index of one. The
dialog previews live and OK is one undo step.
- The palette is chosen as for a PNG-8 export (selective, perceptual,
adaptive, web, gray, black and white), as evenly spaced levels of red,
green and blue (uniform), or from the document's swatches. Dithering
is diffusion, pattern, noise or none, with an amount.
- Pixels under half opacity become one transparent entry; the others
become opaque in their own color. Linked images, colorized images and
color glyph images keep their pixels.
- An image that is already an indexed PNG and would show the same pixels
is left as it is, and no undo step is recorded when no image changes.
- An image of more than 134,217,728 pixels (33,554,432 in the web app)
is refused, read from its header before decoding.
- With Select All, locked and hidden objects that hold an image that is
not an indexed PNG yet are counted in notChanged, without converting
them.
- The quantizer gains quantize_to, which maps pixels to a given palette.
Docs: docs/mcp.md, docs/target-app-parity.md.
An envelope around type of only spaces and a rectangle mapped from the
union of the rectangle and the type's laid-out box, so the empty type
moved and scaled how the rectangle was distorted. Type that draws
nothing now adds no box while other content in the envelope has one,
in groups and layers and as a clipping path too. When nothing else in
the envelope has a box, the type keeps its laid-out box, so an envelope
of only empty type keeps its frame, Make with Mesh and Reset with Mesh
still work, and Release still gives back the warp shape.
This applies to Make with Warp, Make with Mesh, Make with Top Object,
Reset with Mesh, Edit Contents and the stroke margins. Type that has
not been measured yet keeps its laid-out box as before.
The PDF/.ai import's boxes for envelopes with Distort Appearance
measure each object as the whole contents measure it, so the margins
the import tries match the contents' geometric box. The three import
tests that measure type without registering the glyph measure now
register it first, so another test registering it while they run no
longer changes their result.
An envelope or the Warp effect cuts an image into triangle pieces that
reach a little past their edges, so neighbors overlap and no seams show.
On an image with alpha, the overlap drew that alpha twice: a 50% image
came out about 75% opaque along every cell edge and diagonal.
- The pieces now form a knockout group, and each piece is marked as a
warp piece (`warp_piece`) whose knockout shape is its whole triangle,
so where pieces overlap only the top one draws.
- The canvas knocks each piece out by its triangle at full coverage.
- SVG and PDF draw the pieces of a partly transparent image (its pixels,
opacity, color mask or colorize paint) through one mask each, of the
later triangles that reach it; pixels on a triangle's antialiased edge
come out slightly lighter there. Pieces of an opaque image are drawn
one over another as before.
- SVG writes one copy of the image for pieces cut by opacity masks
(Preserve Shape Using Transparency) too.
- A cell count past the generated-object budget makes an empty group
instead of overflowing.
Docs: docs/target-app-parity.md.
Open and Place store some images again instead of keeping their bytes:
a photo turned by its orientation, a TIFF the image decoder reads, and
a CMYK TIFF with one plane per ink. Those images lost the ICC profile
their file embeds, and 16-bit samples were cut to 8 bits.
- raster_image keeps gray and RGB samples at 8 or 16 bits in the
stored PNG, with the gray or RGB profile in its iCCP chunk. A
profile of another color space, such as the CMYK profile of a CMYK
image read as RGB, is left out. A TIFF's profile is read with the
tiff decoder, which reads it whatever the image's size.
- stored_cmyk_tiff and turned_cmyk write CMYK8 or CMYK16 as the file
has it, with the CMYK profile as TIFF tag 34675 (UNDEFINED). A CMYK
JPEG's profile is put together from all its APP2 segments.
- The docs/target-app-parity.md line on EXIF orientation says 8 or 16
bits, and a line after it describes the kept profile.
BFlat