The codec now holds wide EntityType variants boxed (MText, Helix,
Dimension, Hatch, Viewport, MultiLeader, Surface, Table, Ole2Frame,
Light, Extended). Constructors box their entity; nested patterns reach
a dimension through entities::dimension::as_dimension(_mut). Also
follows BlockAction::action_ids, LineTypeComplexData::source_flags and
the decimal tab stop with an explicit character.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Two viewport-navigation defects, both measured against commercial solutions.
The cursor stayed a hand during a zoom. `selection_overlay` took one boolean
for all three interactive navigation tools, so ZOOM Dynamic and ORBIT both
showed PAN's grab hand — which reads as "drag the sheet", the wrong promise
for either. Split it into a `NavCursor` enum: PAN keeps the open/closed hand,
ORBIT gets four-way arrows, and ZOOM Dynamic gets the magnifier carrying the
sign of the zoom actually under way — "+" dragging up, "-" dragging down,
latched with a 2 px dead zone so a hand held still cannot strobe the glyph.
ZOOM Dynamic also reused `box_anchor` to remember where a drag began, so a
selection marquee rubber-banded across the screen while the view zoomed; the
drawing is now suppressed, the state left alone for `reproject_box_anchor`.
ZOOM EXTENTS did not reach the whole drawing, for three separate reasons, now
answered by one shared `Scene::visible_block_bounds`:
- A quartile filter dropped any wire whose centroid sat outside the
inter-quartile consensus of the others. It was meant to stop one junk wire
from a bad parse poisoning the box, but it could not tell parser junk from
an outlying detail, a survey point, or a block placed away from the rest,
and silently refused to frame them. Gone; the absolute 1e16 sentinel gate
the paper path already used is the only filter, and the XLine / Ray display
segments that motivated the heuristic are handled explicitly.
- HATCH tessellates to no wires at all, and the model path never read the
fill models, so a drawing whose outermost geometry is a fill — or which is
nothing but fills — had nothing to frame. It now folds them in, reusing the
renderer's own warm cache on the hot path rather than re-exploding every
INSERT per ZOOM EXTENTS.
- Inside a floating viewport the fit came from `compute_model_space_extents`,
which walked only `key_vertices` — empty for every tessellated curve.
Circles, arcs, ellipses and splines contributed nothing. Fixing it also
corrects plot Extents, sheet-set framing, viewport auto-fit and SpaceMouse
model bounds, which all inherited that blind spot.
Bounds stay f64 into the camera: a UTM drawing lost whole metres to the old
f32 round-trip. Drawing extents also no longer read the camera — the result is
cached per geometry epoch, and a floating viewport's camera is derived FROM
the extents, so `camera_for_viewport` recursed into a stack overflow.
`model_space_extents_mixed_entities_accuracy` asserted the curve-blind result;
it now asserts the true bounds.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
