fix(blocks): preserve UCS transformations

Bake BEDIT frames into block-local geometry while keeping model and viewport UCS isolated. Normalize legacy nonzero block origins during load.
This commit is contained in:
Hakan Seven committed 2026-07-30 19:50:33 +03:00
1 parent 02d15f5d23
commit 2c64888048
22 files changed
+693 -41

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@@ -9,6 +9,44 @@ struct TextOrient {
x_scale: f64,
}
fn inverse_affine(
transform: &acadrust::types::Transform,
) -> Option<acadrust::types::Transform> {
use acadrust::types::{Matrix3, Matrix4, Transform, Vector3};
let matrix = &transform.matrix.m;
let linear = Matrix3::from_rows(
[matrix[0][0], matrix[0][1], matrix[0][2]],
[matrix[1][0], matrix[1][1], matrix[1][2]],
[matrix[2][0], matrix[2][1], matrix[2][2]],
);
let inverse = linear.inverse()?;
let translation = Vector3::new(matrix[0][3], matrix[1][3], matrix[2][3]);
let inverse_translation = inverse * (translation * -1.0);
Some(Transform::from_matrix(Matrix4 {
m: [
[
inverse.m[0][0],
inverse.m[0][1],
inverse.m[0][2],
inverse_translation.x,
],
[
inverse.m[1][0],
inverse.m[1][1],
inverse.m[1][2],
inverse_translation.y,
],
[
inverse.m[2][0],
inverse.m[2][1],
inverse.m[2][2],
inverse_translation.z,
],
[0.0, 0.0, 0.0, 1.0],
],
}))
}
/// Snapshot the orientation of a text / mtext / shape entity, or `None` for any
/// other kind.
fn capture_text_orient(e: &EntityType) -> Option<TextOrient> {
@@ -229,6 +267,164 @@ impl Scene {
self.bump_entities(&changes);
}
/// Entities in anonymous dimension blocks that visually belong to
/// dimensions inside `block_record`. They must follow a block-coordinate
/// reframe and be included in BEDIT's discard snapshot.
pub(crate) fn block_definition_dependent_handles(
&self,
block_record: Handle,
) -> Vec<Handle> {
let Some(record) = self
.document
.block_records
.iter()
.find(|record| record.handle == block_record)
else {
return Vec::new();
};
let root_handles: HashSet<Handle> = record.entity_handles.iter().copied().collect();
let mut result = Vec::new();
let mut seen = HashSet::default();
for handle in &record.entity_handles {
let Some(EntityType::Dimension(dimension)) = self.document.get_entity(*handle) else {
continue;
};
let name = dimension.base().block_name.trim();
if name.is_empty() {
continue;
}
let Some(dependent) = self
.document
.block_records
.iter()
.find(|candidate| candidate.name.eq_ignore_ascii_case(name))
else {
continue;
};
for dependent_handle in &dependent.entity_handles {
if !root_handles.contains(dependent_handle) && seen.insert(*dependent_handle) {
result.push(*dependent_handle);
}
}
}
result
}
/// Bake a transient BEDIT UCS into one block definition.
///
/// `local_from_old` maps the currently stored block coordinates into the
/// newly selected UCS frame. No UCS record is attached to the block: the
/// content is transformed and remains canonical around identity/zero.
pub fn reframe_block_definition(
&mut self,
block_record: Handle,
local_from_old: &acadrust::types::Transform,
) -> usize {
let Some(record) = self
.document
.block_records
.iter()
.find(|record| record.handle == block_record)
else {
return 0;
};
let block_name = record.name.clone();
let root_handles: HashSet<Handle> = record.entity_handles.iter().copied().collect();
let dependent_handles = self.block_definition_dependent_handles(block_record);
let mut handles = record.entity_handles.clone();
handles.extend(dependent_handles.iter().copied());
let owned: HashSet<Handle> = handles.iter().copied().collect();
let transform = EntityTransform::Affine(*local_from_old);
let matrix = &local_from_old.matrix.m;
let dependent_transform =
EntityTransform::Affine(acadrust::types::Transform::from_matrix(
acadrust::types::Matrix4 {
m: [
[matrix[0][0], matrix[0][1], matrix[0][2], 0.0],
[matrix[1][0], matrix[1][1], matrix[1][2], 0.0],
[matrix[2][0], matrix[2][1], matrix[2][2], 0.0],
[0.0, 0.0, 0.0, 1.0],
],
},
));
let mut changed = Vec::new();
for handle in handles {
let is_structural = self.document.get_entity(handle).is_some_and(|entity| {
matches!(entity, EntityType::Block(_) | EntityType::BlockEnd(_))
});
if is_structural {
continue;
}
if self.is_recording_undo() {
let before = self.document.get_entity_arc(handle);
self.record_undo_before(handle, before);
}
if let Some(entity) = self.document.get_entity_mut(handle) {
// A nested dimension's anonymous `*D` picture is placed by
// adding the dimension insertion point. That point already
// receives the affine translation with the root dimension, so
// its picture receives only the new basis here; applying the
// translation twice would shift dimensions on origin changes.
let entity_transform = if root_handles.contains(&handle) {
&transform
} else {
&dependent_transform
};
view::dispatch::apply_transform(entity, entity_transform);
changed.push(handle);
}
}
// ATTRIBs live inline on each INSERT in that reference's owner space.
// Conjugate the block-local reframe through the INSERT transform:
// owner' = M · local_from_old · M⁻¹ · owner.
let references: Vec<(Handle, acadrust::types::Transform)> = self
.document
.entities()
.filter_map(|entity| match entity {
EntityType::Insert(reference)
if reference.block_name.eq_ignore_ascii_case(&block_name)
&& !reference.attributes.is_empty()
&& !owned.contains(&reference.common.handle) =>
{
let insertion = reference.get_transform();
let inverse = inverse_affine(&insertion)?;
Some((
reference.common.handle,
acadrust::types::Transform::from_matrix(
insertion.matrix * local_from_old.matrix * inverse.matrix,
),
))
}
_ => None,
})
.collect();
for (handle, attribute_transform) in references {
if self.is_recording_undo() {
let before = self.document.get_entity_arc(handle);
self.record_undo_before(handle, before);
}
if let Some(EntityType::Insert(reference)) = self.document.get_entity_mut(handle) {
for attribute in &mut reference.attributes {
acadrust::Entity::apply_transform(attribute, &attribute_transform);
}
changed.push(handle);
}
}
for handle in changed.iter().copied() {
let _ = crate::scene::annotative::sync_active_context_from_entity(
&mut self.document,
handle,
);
}
if !changed.is_empty() {
self.rebuild_derived_caches();
}
changed.len()
}
/// Give a freshly-cloned entity brand-new handles for every *inline*
/// sub-entity that stores one (INSERT attributes, 3D-polyline vertices).
/// `document.add_entity` only assigns the top-level handle, so without this