SPLINE Close now builds a smooth closed (periodic) curve through the fit points
instead of repeating the first point. The geometry gets Spline::from_fit_points_closed:
chord-length parameters including the closing chord, a periodic knot vector, and the
first three control points repeated at the end. The fit data no longer duplicates the
first point. DXF writes group 70 bit 2 (periodic) for it, and a file whose closed spline
needs refitting is refitted closed. SPLINEDIT Close/refit/move and fit-point grips keep
a closed spline periodic.
SPLINE Method asks Fit/CV, and CV continues as SPLINE by control vertices. Knots, Object,
start/end Tangency and toLerance report "not available yet" and stay at the prompt.
Garbage text reports "Point or option keyword required.".
POLYGON with a typed radius puts the bottom edge horizontal for Inscribed and for
Circumscribed. The JSON form uses the same orientation when no angle is given.
CIRCLE reports "Point or option keyword required." for an invalid token at the centre
prompt, and "Invalid point." at the 3P/2P point prompts, then asks again.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
- Layer Properties Manager: filter tree (All / All Used Layers) with search, sortable table
(Status, Name, On, Freeze, Lock, Plot, Color, Linetype, Lineweight, Transparency,
New VP Freeze, Description; VP Freeze / VP Color inside an MSPACE viewport), inline
rename and description, ACI + true-colour picker, linetype picker with Load from the
library, lineweight picker, layer states save/restore/delete.
- Engine: qselect rewritten ({type, property, operator =,!=,>,<,*, value, mode new|append|
exclude, applyTo}) + qselect.info; layerstate.list/delete/rename; layer list reports
used layers and states; Layer.vp_freeze_new (DXF flag 2, applied by MVIEW) and
layer.set newVpFreeze; per-viewport layer colours (Viewport.layer_colors, vplayer
colors, honoured by the renderer); vplayer defaults to the active viewport; QPMODE
setting/sysvar/toggle; properties.set length/angle for lines.
- Canvas: constraint bars with code-drawn glyphs and coincident markers, dynamic
dimensional constraints (aligned/horizontal/vertical/radius/diameter/angular) with
name=value labels and lock icon, honouring CONSTRAINTBAR/DCDISPLAY; cached per
drawing revision; double-click a label to edit its expression (parameters).
- Quick Properties palette near the selection (status-bar toggle), Quick Select dialog,
Parameters Manager (edit, add user parameter, delete).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
