- Every engine twist (DVIEW, view.set, opening a drawing, the untiled view) goes through norm_angle, so a tiny negative twist is 0, not a full turn.
- VIEW Window in a twisted view stores the window's size along the view's axes (View::twisted_box), so a restore shows all of it.
- A deferred tangent or perpendicular snap on an arc in a twisted layout viewport turns the arc's angles with its centre.
- The active viewport's cached drawing is rebuilt when its twist changes; moving and scaling it can't turn it.
Inside a routine, commands recorded no undo step (the routine becomes
one when it ends), so U inside a routine took back the step from before
the routine: after drawing a line D, ERASE B then U in one routine
brought B back and removed D.
As AutoCAD 2024 does (accoreconsole, the drawing read back after one
routine), U inside a routine now takes back the routine's last command,
with what the routine did after it (entdel, entmake); U again, UNDO n
and REDO go on through its commands. With none left, U takes back the
drawing's step before the routine, as before, and the routine's step
then starts from there. Once the routine ends it is still one undo step.
The routine's steps live in the session's LISP state (RoutineSteps), not
in the drawing's undo stack, so a long routine doesn't push the drawing's
earlier steps out. A command inside the routine ends what REDO could
bring back; UNDO Control One and None apply. DocState::swap_in is the
one restore step undo, redo and the routine share.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* Add -ARRAY, the classic command-line array, as AutoCAD lays it out
Rectangular arrays move the copy in row r and column c by (c * column distance, r * row
distance), asking for a distance only when there is more than one row or column; polar arrays
space n items 360/n apart around a full circle and fill/(n - 1) otherwise, turning the copies or
moving them with the group 10 point of the object selected last. The copies are separate
objects; the type asked defaults to the one used last.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* -ARRAY: refuse an unknown type and oversized arrays before making transforms
The JSON form errors on a type other than rectangular or polar, and checks MAXARRAY before the
copies' transforms are made; the command line bounds the columns by the rows (CodeRabbit).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
panic_hunt runs every command in a fresh session and fails on real panics. The guard now covers the steps after a command, so a late panic restores the drawing instead of ending the app.
* LISP: entity names answer prompts that pick one object
`command` fed an entity name, alone or as `entsel` returns it (name and
point), to the running command as a pick. Prompts that pick a single
object with a point (MEASURE, DIVIDE, LENGTHEN, PEDIT, BREAK, TRIM and
EXTEND in Standard mode, FILLET, OFFSET, REVCLOUD Object, dimensions…)
only take points, so routines got "Invalid input" or nothing at all.
At such a prompt the name is now entered as its point, and a pick at
exactly that point finds the named object (Session::pick_object), so
the point says where on it, as in AutoCAD. A bare name stands at the
object's DXF group 10 point, the point AutoCAD picks it at: a line's
start, a circle's or an arc's centre, a polyline's first vertex. At an
arc's centre MEASURE runs from the arc's end, as AutoCAD does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Keep a named object for its own input and its own space
A name given at a prompt picking one object now holds only while that
input is taken: a later pick at the same point finds what lies there.
A name for an object in another space picks nothing, instead of the
object under its point in the current space.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
An expression typed at a command's prompt is evaluated, and its value
answers the prompt. That value went back through typed(), which treated
it as typed text and evaluated it again when it looked like LISP. So
`circle (setq q "!q")` returned "!q", which evaluated to "!q" again,
forever, until the native stack overflowed and the process aborted
(a stack overflow is not a panic, so the catch_unwind guards cannot
help), losing unsaved work in every open drawing. It is reachable from
the command line, .scr scripts, the control channel and MCP.
The value now goes back with LISP evaluation off: a string that looks
like an expression is taken as text, as AutoCAD does.
Tanish Manku