- motion.plot: joint values and a point's path sampled as the study plays (closed loops
following), with velocities and accelerations by finite differences, per step or per
second with a duration.
- motion.interference: the pairs of parts that pass through each other along a study, with
the first step, the step ranges, the depth and the shared volume; occurrences, against
or contact sets choose the pairs; bounded samples and work.
- Motion Study dialog: a Study box opens a saved study; a chart of a joint value or a
picked point with a cursor at the step shown (click to move there); Check collisions
with the steps shaded on the chart. ui.start motion.study takes study.
Record ownership transfers in the timeline so earlier Join/Cut membership,
world placement, machining data and styles survive component moves, edits,
independent copying, undo and reopening. Preserve pending positions in history
snapshots and keep constructor transfers ordered during feature redefinition.
Retain shallow sheet pockets and exact planar intersection islands through
unfold/refold, with depth-aware flat previews and DXF export. Store explicit
3D wire coordinate spaces and migrate known legacy provenance without moving
saved points or analytic fits.
Infer unique eligible cylindrical Emboss targets, align Revolve manipulators
with actual extent geometry, and discard obsolete preview errors after input
correction. Certify constructed and immutable imported face styles using exact
source metadata while preserving legacy face names. Upgrade designs to format10
with bounded validation and geometry-preserving legacy migration.