VectorCraft could open and place HP-GL plot files but not write them,
so art for a pen plotter or a vinyl cutter had to go through another
program.
Export As, document.export and Export Selection now write HP-GL.
vectorcraft_cad::hpgl::export draws each visible path once along its
own line: a filled shape is its closed outline and a stroked path its
center line. Type is drawn as glyph outlines, a gradient mesh as its
outline, and a symbol instance as its art with its effects and the
instance's stain. Clipping masks cut the art they clip, and the art is
cut at the artboard's edges. Hidden and non-printing layers, hidden objects,
objects at 0% opacity, template layers, guides and placed images are
left out. Coordinates are plotter units (1016 to the inch, y up) from
the artboard's bottom-left corner or its center, and art more than
8,388,607 units from the origin is cut off.
Each color is a pen, in the order the plot first draws in it (up to
255), or a pen table maps each path to the pen of the nearest color.
With Use Artboards every file of the export uses the same numbering.
The pens draw in turn, each in paint order or, with sortPaths, nearest
path first. Curves are flattened to curveTolerance (0.1 pt by default).
hpglVersion "hpgl" writes IN, SP, PU and PD; "hpgl2" also writes the
palette (NP, PC) and each pen's paths as one encoded polyline (PE).
Options are checked, and Export As writes the file with the defaults.
Plots read back by the HP-GL reader give the same lines.
Docs: docs/mcp.md, docs/control-protocol.md, docs/file-format-parity.md,
docs/target-app-parity.md.
tests::pen::a_drag_from_the_first_anchor_closes_the_path expected the
closing drag to give the first anchor an outgoing handle mirroring the
incoming one, which is the behavior #6634 reports. The first anchor is
placed by a click, so after the close it stays a corner with its
outgoing handle at the anchor. The test now checks that.
A plain Save that the location refuses (read-only filesystem or permission denied) now opens Save As with the name filled in, instead of ending in an error dialog. The refusal travels as a typed engine error (READ_ONLY_LOCATION), so the control protocol and MCP still return an error and never open a panel. Recovery failures, explicit destinations, a busy picker and Close/Quit keep their existing flow.
Closes#6146
engine.commands, command_list and list_commands now list an inputSchema
next to schema for each command with a parameter schema. It is the same
JSON Schema 2020-12 schema with the root type "object", the form an MCP
tool's inputSchema takes
(https://modelcontextprotocol.io/specification/2026-07-28/schema);
schema keeps the root type ["object", "null"] when no parameter is
required. A command without a schema lists neither field. tools/list is
unchanged, and the commands are still run with command_run or
run_command.
brief now leaves out schema and inputSchema as well as the params text;
a listing filtered to the command's id gives them.
Docs: docs/mcp.md, docs/target-app-parity.md.
File › Scripts › Other Script… picks a .js or .jsx file, shows a warning
that can be turned off in Preferences › General, and runs the script
against the open documents through the `vc` object. The new
`script.run` and `script.stop` commands run and stop a script over MCP.
- A run is one transaction. Each document it changed gets one undo step
named Run Script. An uncaught error, a limit or a stop puts every
document, the paint, the clipboard, menu state and preferences back.
- A command that fails inside a run, or whose result is too large to
reach the script, is undone and throws an error the script can catch.
- Files a command wrote stay on disk and the report names them, also
when the run is stopped from the quit question.
- While a script runs, other commands that change anything fail with a
busy error; MCP reports it as JSON-RPC error -32003.
- In the app the run advances one slice per frame with a Stop button in
the status bar. A run that adds a great many objects asks whether to
continue; Stop and Escape end it.
- Commands that change state outside the documents, such as prefs.*,
plugin.* and file.place.queue, are refused to scripts.
Docs: docs/mcp.md, docs/gaps.md, docs/roadmap.md,
docs/target-app-parity.md.
document.save, file.saveAs, file.saveCopy and file.saveAsTemplate wrote
the file when given a key that no save format reads, beside the path or
in options, or an unknown key inside a PDF option object such as
marks.useDocumentBleed. document.exportForScreens did the same for an
unknown top-level key, a key in a format row and a key in the settings
of a format.
These commands now refuse such a key and name its path
(options.noSuchOption, formats[1].marks.useDocumentBleed). The svg
object is checked in every save, export and format row, also when the
file written is not SVG. A save still leaves out a key that only another
save format reads, and warns as before. A format row and a format's
settings still take includeArtboardFill and richBlack, which the
encoders read. document.exportPresets.save checks its settings, with the
rows and settings in it, the same way.
In the app, file.save and file.exportForScreens sent as commands are
checked as document.save and document.exportForScreens, and app.save is
checked before anything is written; MCP's app.save, file.save and
file.exportForScreens are checked the same way. The SVG Options dialog
no longer passes its internal fields on to the save.
File › Open With asks for the parameters of an importer that declares
any, at their defaults, once the file is picked (dialog `pluginImport`),
and opens the file with the values set. `file.openWith`, `app.open` and
MCP's `open_file` take `params` and pass them to the importer;
`app.open` without them runs the importer on their defaults, with no
dialog. A file opened with Open With is added to Open Recent, as File ›
Open adds the files it opens.
open_file passes `importer` (an importer plug-in's format id,
plugin.<id>) on to app.open. Headless, it becomes document.open's
`importer`; in the app, app.open with `importer` runs file.openWith, so
the file opens with that importer as File > Open With does, also when a
built-in format reads its extension.
document.export, document.exportSelection, document.serialize, app.export
and file.export took {noSuchOption: true} and wrote the file with no
warning. They now refuse a key that no format lists in document.formats,
and name the nearest key when one is close. document.exportPdf,
document.pdfSettings and pdf.preset.save refuse a key PDF doesn't take,
document.exportEps one EPS doesn't take and document.exportDxf one DXF
doesn't take. Each refuses an unknown key inside an option object it takes,
such as marks.useDocumentBleed, and names its path.
A key that only another format reads, such as {format: pdf, quality: 80},
is still ignored: docs/mcp.md says one object can carry several formats'
options. The check runs for callers (the control channel, MCP, the CLI).
A journal or a recorded action isn't checked, and a saved PDF preset with
a key that is no longer read still loads.
document.formats now also lists PDF's thumbnails, fastWebView and
viewAfterSaving.
save_file's note for a key in `options` that the written format doesn't
read named every .ai file a PDF-compatible .ai, also when the save wrote
a version 7 file (`aiVersion: "7"`) or one without PDF content
(`pdfCompatible: false`).
The save itself now writes that note, beside its note on a top-level
`compress`, `version`, `preview` or `precision`, and names the file it
writes, including when it reuses the options the document was last saved
with. save_file returns the save's reply unchanged, and
`run_command document.save` and the other save commands give the same
notes.
File > Open and File > Place read BMP files named .dib or .rle (run-length
encoded bitmaps included), Photoshop files named .pdd and PNG files named
.pns, in any letter case. The Open and Place dialogs list them in "All
readable files", "All placeable files" and their format's own filter, and
Glass's Load Texture lists them too. Linked files with these names update
and relink, the Links panel shows their format, and Edit Original opens
them.
The extensions are read-only: exports still write .bmp, .psd and .png, and
an export to a path with one of the new extensions is refused as before.
The desktop packaging does not associate them with the app.
Ahmed Gomaa