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To / From Object finds a target in another, moved component (#993)

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Fixes #928. Extrude To / From Object and Revolve To Object now resolve their target in the feature's own component frame, so a face in another component whose occurrence is moved is found where it is shown instead of the extrude stopping at a flat plane through the picked point. The point is named after the nearest face, a named point keeps its named face when another component touches it there, and such features re-evaluate when a placement changes, so they follow the target when it moves later.

Co-authored-by: SychPL <SychPL@users.noreply.github.com>
This commit is contained in:
Mateusz SychandSychPL authored and GitHub committed 2026-10-14 04:41:59 -04:00
1 parent 6e84c03946
commit cf9d7772f1
5 files changed
+289 -28
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crates/doc/src/eval.rs
+104 -24
View File
@@ -897,6 +897,15 @@ fn placement_digest(doc: &Document, f: &Feature) -> u64 {
}
return hash.finish();
}
// To / From Object finds its target where that target's component is placed (#928).
let to_object = match &f.kind {
FeatureKind::Extrude { extent, .. } => extent.to.is_some() || extent.from.is_some(),
FeatureKind::Revolve { to, .. } => to.is_some(),
_ => false,
};
if to_object {
return if doc.occurrences.is_empty() && doc.body_offsets.is_empty() { 0 } else { placements_hash(doc) };
}
let FeatureKind::Sketch { plane, sketch } = &f.kind else { return 0 };
let anchor = crate::face_anchor::plane_face_anchor(plane);
if (doc.occurrences.is_empty() && (anchor.is_none() || doc.body_offsets.is_empty()))
@@ -904,6 +913,11 @@ fn placement_digest(doc: &Document, f: &Feature) -> u64 {
{
return 0;
}
placements_hash(doc)
}
/// Every occurrence's placement and every body offset.
fn placements_hash(doc: &Document) -> u64 {
let mut h = std::collections::hash_map::DefaultHasher::new();
for o in &doc.occurrences {
o.id.hash(&mut h);
@@ -1105,17 +1119,18 @@ impl Model {
FeatureKind::Hole { direction, points: None, .. } => direction.normalized(),
_ => None,
};
let fst = face_point_state(doc, &state, &f.kind, f.component);
for (k, (p, n)) in g.kind.face_points_mut().into_iter().zip(&f.face_names).enumerate() {
if n.is_empty() {
continue;
}
match crate::naming::locate_face(&state, n, *p) {
match crate::naming::locate_face(&fst, n, *p) {
Some(hit) => {
if let Some(note) = hit.note(n) {
notes.push(note);
}
match (k, hole_axis) {
(0, Some(axis)) => match hit.along(&state, *p, axis) {
(0, Some(axis)) => match hit.along(&fst, *p, axis) {
Some(q) => *p = q,
// The place still lies on the face (the axis may run along it).
None if hit.on_point => {}
@@ -2489,15 +2504,22 @@ fn feature_tools_with_constructor(
)?;
let regions = solidcraft_sketch::merge_regions(&select_profiles(&ss, profiles)?);
// From / To Object: where the face or point lies along the normal, measured over the
// middle of the profiles.
// middle of the profiles. The points are in this feature's component frame, so the
// model is seen from there: a target in another, moved component where it is shown.
let n = ss.plane.normal();
let tst =
if extent.to.is_some() || extent.from.is_some() { state_in_frame(doc, st, f.component) } else { std::borrow::Cow::Borrowed(st) };
// The face names follow `face_points`: To, then From.
let name = |k: usize| f.face_names.get(k).map(String::as_str);
let (to_name, from_name) = if extent.to.is_some() { (name(0), name(1)) } else { (None, name(0)) };
let to_face = extent.to.and_then(|p| object_face(&tst, to_name, p));
let centre = {
let pts: Vec<Vec2> = regions.iter().flat_map(|r| r.outer.polyline(1e-2)).collect();
let c = pts.iter().fold(Vec2::default(), |a, p| a + *p) * (1.0 / pts.len().max(1) as f64);
ss.plane.to_world(c)
};
let from = match extent.from {
Some(p) => object_height(st, &ss.plane, centre, p),
Some(p) => height_at(&tst, object_face(&tst, from_name, p), &ss.plane, centre, p),
None => 0.0,
};
let d = match extent.to {
@@ -2506,7 +2528,7 @@ fn feature_tools_with_constructor(
Some(e) => val(vals, e, Kind::Length)?,
None => 0.0,
};
let h = object_height(st, &ss.plane, centre, p);
let h = height_at(&tst, to_face, &ss.plane, centre, p);
let start = from + extent.start_offset.as_deref().map(|e| val(vals, e, Kind::Length)).transpose()?.unwrap_or(0.0);
// Past the face by the offset, in the direction travelled.
let to = h + if h >= start { off } else { -off };
@@ -2550,9 +2572,9 @@ fn feature_tools_with_constructor(
let (mut lo, mut hi) = if a <= b { (a, b) } else { (b, a) };
// To a curved (or slanted) face: run right through the target body, then keep what
// lies before its surface (the tool less the body, the piece at the start).
let curved = extent.to.and_then(|p| curved_target(st, n, p));
let curved = curved_face(&tst, to_face, Some(n));
if let Some(bi) = curved
&& let Some(tb) = st.bodies.get(bi)
&& let Some(tb) = tst.bodies.get(bi)
{
let m = tb.mesh();
let hs: Vec<f64> = m.positions.iter().map(|q| (*q - ss.plane.origin).dot(n) - off).collect();
@@ -2604,7 +2626,7 @@ fn feature_tools_with_constructor(
tools = vec![Traced::step(one, &tools.iter().collect::<Vec<_>>())];
}
}
if let Some(tb) = curved.and_then(|bi| st.bodies.get(bi)) {
if let Some(tb) = curved.and_then(|bi| tst.bodies.get(bi)) {
let start = if hi > 0.0 { lo + off } else { hi + off };
tools = trim_to_body(tools, tb, |q: Vec3| ((q - ss.plane.origin).dot(n) - start).abs())?;
}
@@ -2662,13 +2684,15 @@ fn feature_tools_with_constructor(
)?;
let regions = solidcraft_sketch::merge_regions(&select_profiles(&ss, profiles)?);
let (o, d) = revolve_axis(&ss, axis)?;
// To Object is in this feature's component frame: the model as seen from there.
let tst = if to.is_some() { state_in_frame(doc, st, f.component) } else { std::borrow::Cow::Borrowed(st) };
let angles = if to.is_some() {
(0.0, None)
} else {
(val(vals, angle, Kind::Angle)?, angle2.as_ref().map(|a| val(vals, a, Kind::Angle)).transpose()?)
};
let extent = revolve_extent_with_convention(
st,
&tst,
&ss.plane,
&regions,
(ss.plane.to_world(o), ss.plane.dir_to_world(d)),
@@ -2683,7 +2707,7 @@ fn feature_tools_with_constructor(
.map(|r| {
if *convention == crate::RevolveConvention::SketchNormal && to.is_some() {
revolve_extent_with_convention(
st,
&tst,
&ss.plane,
std::slice::from_ref(r),
(ss.plane.to_world(o), ss.plane.dir_to_world(d)),
@@ -2724,8 +2748,8 @@ fn feature_tools_with_constructor(
.collect::<Result<Vec<_>>>()?;
// To a curved face: turn past the whole target body, then cut back to its surface
// (the piece that starts at the profile).
let curved = to.and_then(|p| curved_target_any(st, p));
let curved_body = curved.and_then(|bi| st.bodies.get(bi));
let curved = curved_face(&tst, to.and_then(|p| object_face(&tst, f.face_names.first().map(String::as_str), p)), None);
let curved_body = curved.and_then(|bi| tst.bodies.get(bi));
// Each region's body: its sides named by the sketch curves, its caps start and end.
let tool = |r: &Region2, body: Body, built: Option<&Body>| crate::lineage::ProfileRoles::swept(Some(&ss), Some(r)).tool(body, built);
let build_curved = |regions: &[Region2], angle_axis: Vec3, tb: &ModelBody| -> Result<Vec<Traced>> {
@@ -3437,9 +3461,14 @@ mod surface;
/// there if it is planar and parallel (its plane), else where a ray from `centre` along the
/// normal meets the body there, else the point itself.
pub fn object_height(st: &ModelState, plane: &Plane, centre: Vec3, p: Vec3) -> f64 {
height_at(st, face_at(st, p), plane, centre, p)
}
/// [`object_height`] of the point `p` on `face` (`(body index, face index)`, see [`object_face`]).
fn height_at(st: &ModelState, face: Option<(usize, usize)>, plane: &Plane, centre: Vec3, p: Vec3) -> f64 {
let n = plane.normal();
let h = |q: Vec3| (q - plane.origin).dot(n);
let Some((bi, fi)) = face_at(st, p) else { return h(p) };
let Some((bi, fi)) = face else { return h(p) };
let Some(b) = st.bodies.get(bi) else { return h(p) };
let tol = (b.body.size() * 1e-3).max(1e-3);
let Ok(faces) = b.body.faces(tol) else { return h(p) };
@@ -3477,24 +3506,37 @@ fn face_at(st: &ModelState, p: Vec3) -> Option<(usize, usize)> {
.map(|(_, bi, fi)| (bi, fi))
}
/// The body at `p` when the face there is not a plane square to `n` (To Object must then
/// follow the face's shape).
fn curved_target(st: &ModelState, n: Vec3, p: Vec3) -> Option<usize> {
let (bi, fi) = face_at(st, p)?;
/// The face a To / From Object point stands for, `(body index, face index)`: the face its
/// stored `name` finds when the point lies on it (evaluation has moved the point onto its named
/// face), else the nearest face at the point. The name settles a tie: in an assembly a part of
/// another component may rest on the target and touch it at the point.
fn object_face(st: &ModelState, name: Option<&str>, p: Vec3) -> Option<(usize, usize)> {
if let Some(n) = name.filter(|n| !n.is_empty())
&& let Some(hit) = crate::naming::locate_face(st, n, p)
&& hit.on_point
{
return Some((hit.body, hit.face));
}
face_at(st, p)
}
/// The body of `face` when that face is not a plane (with `n`: not a plane square to `n`), so To
/// Object must follow its shape.
fn curved_face(st: &ModelState, face: Option<(usize, usize)>, n: Option<Vec3>) -> Option<usize> {
let (bi, fi) = face?;
let b = st.bodies.get(bi)?;
let tol = (b.body.size() * 1e-3).max(1e-3);
let planar =
b.body.faces(tol).ok()?.into_iter().find(|f| f.index == fi).and_then(|f| f.plane_normal).is_some_and(|fnrm| fnrm.cross(n).len() < 1e-6);
let normal = b.body.faces(tol).ok()?.into_iter().find(|f| f.index == fi).map(|f| f.plane_normal);
let planar = match n {
Some(n) => normal.flatten().is_some_and(|fnrm| fnrm.cross(n).len() < 1e-6),
None => normal.is_some_and(|fnrm| fnrm.is_some()),
};
(!planar).then_some(bi)
}
/// The body at `p` when the face there is not planar.
fn curved_target_any(st: &ModelState, p: Vec3) -> Option<usize> {
let (bi, fi) = face_at(st, p)?;
let b = st.bodies.get(bi)?;
let tol = (b.body.size() * 1e-3).max(1e-3);
let planar = b.body.faces(tol).ok()?.into_iter().find(|f| f.index == fi).is_some_and(|f| f.plane_normal.is_some());
(!planar).then_some(bi)
curved_face(st, face_at(st, p), None)
}
/// Tools run through `target`, cut back to its surface: each tool less the body, keeping the
@@ -4427,6 +4469,44 @@ pub fn state_in_frame<'a>(doc: &Document, st: &'a ModelState, comp: u64) -> std:
state_in_frame_at(doc, st, comp, doc.component_transform(comp))
}
/// The model a feature's face points (`FeatureKind::face_points`) are found in. Extrude's To /
/// From and Revolve's To place geometry, so they are kept in the feature's own component frame
/// (`comp`): the model as that component sees it, a target in another, moved component where it
/// is shown (#928). Other face points are picks, kept in the frame of the body they lie on: the
/// model itself.
pub fn face_point_state<'a>(doc: &Document, st: &'a ModelState, kind: &FeatureKind, comp: u64) -> std::borrow::Cow<'a, ModelState> {
match kind {
FeatureKind::Extrude { .. } | FeatureKind::Revolve { .. } => state_in_frame(doc, st, comp),
_ => std::borrow::Cow::Borrowed(st),
}
}
/// The names of the faces a feature's face points lie on (empty where none), found in
/// [`face_point_state`]. A To / From point is named after the nearest face over every body, the
/// one `object_height` resolves it to, not the first body with a face within tolerance: a part
/// resting a hair from the picked face would otherwise take its name.
pub fn face_point_names(doc: &Document, st: &ModelState, kind: &FeatureKind, comp: u64) -> Vec<String> {
let pts = kind.face_points();
if !matches!(kind, FeatureKind::Extrude { .. } | FeatureKind::Revolve { .. }) {
return crate::naming::face_names_at(st, &pts);
}
let fst = face_point_state(doc, st, kind, comp);
pts.iter()
.map(|p| {
fst.bodies
.iter()
.filter(|b| !b.body.is_mesh())
.filter_map(|b| {
let (d, fi) = crate::appearance::nearest_face(b, *p)?;
(d <= (b.body.size() * 1e-3).max(1e-3)).then_some((d, b, fi))
})
.min_by(|a, b| a.0.total_cmp(&b.0))
.and_then(|(_, b, fi)| crate::naming::face_names(b).get(fi).cloned())
.unwrap_or_default()
})
.collect()
}
/// As `state_in_frame`, using the exact active placement for its shared source geometry.
pub fn state_in_frame_at<'a>(doc: &Document, st: &'a ModelState, comp: u64, frame: Mat) -> std::borrow::Cow<'a, ModelState> {
use std::borrow::Cow;
crates/doc/src/lib.rs
+2 -2
View File
@@ -47,8 +47,8 @@ pub use assembly::{
pub use document::*;
pub use eval::{
EdgeRef, FeatureResult, Model, ModelBody, ModelState, RevolveExtent, SolvedSketch, ThreadInfo, curve_pick_error, edge_names_for, edge_refs,
hole_direction_at, object_height, parse_metric_thread, pattern_matrices, revolve_extent, revolve_extent_with_convention, select_profiles,
sketch_hole_direction, state_in_frame, state_in_frame_at, through_all_distance, world_state,
face_point_names, face_point_state, hole_direction_at, object_height, parse_metric_thread, pattern_matrices, revolve_extent,
revolve_extent_with_convention, select_profiles, sketch_hole_direction, state_in_frame, state_in_frame_at, through_all_distance, world_state,
};
pub use params::{ParamRow, ParamUser, cycles};
pub use solidcraft_kernel as kernel;
crates/engine/src/cmd/edit.rs
+1 -1
View File
@@ -667,7 +667,7 @@ fn edit_feature(s: &mut Session, p: &Value) -> Result<Value> {
}
// New face points: their faces' names now.
if nf.kind.face_points() != f.kind.face_points() {
nf.face_names = solidcraft_doc::naming::face_names_at(&s.model.state_before(id), &nf.kind.face_points());
nf.face_names = solidcraft_doc::face_point_names(&s.doc, &s.model.state_before(id), &nf.kind, nf.component);
}
if let Some(slot) = s.doc_mut().feature_mut(id) {
*slot = nf;
crates/engine/src/cmd/features.rs
+1 -1
View File
@@ -418,7 +418,7 @@ fn add_feature_in(s: &mut Session, p: &Value, kind: FeatureKind, world: bool) ->
} else if pts.is_empty() {
Vec::new()
} else {
solidcraft_doc::naming::face_names_at(&s.model.state(), &pts)
solidcraft_doc::face_point_names(&s.doc, &s.model.state(), &kind, s.active_component)
}
};
// Primitives have no `targets` of their own: their `targets` are the bodies taking part (#259).
crates/engine/src/tests/component_frames.rs
+181
View File
@@ -108,3 +108,184 @@ fn extrude_to_a_face_in_a_moved_component() {
let v = run(&mut s, "inspect.measure", json!({"bodies": ["Jaw"]}))["total"]["volume_mm3"].as_f64().unwrap();
assert!(rel(v, 4000.0 + 10.0 * 2.0 * 15.0) < 1e-6, "{v}");
}
/// Component `Target` with a ramp (top face z = -20 + y/2 over x -10..10, y -20..20, in its own
/// frame), its occurrence moved by `moves`, then a new component `Post`, active, with a 6 x 6 mm
/// sketch `Pad` centred at the origin (#928).
fn ramp_and_pad(s: &mut Session, moves: &[serde_json::Value]) {
run(s, "component.create", json!({"name": "Target"}));
run(s, "sketch.create", json!({"plane": "YZ", "name": "Wedge"}));
run(s, "sketch.line", json!({"points": [[-20, -30], [20, -30], [20, -10], [-20, -30]]}));
run(s, "sketch.finish", json!({}));
run(s, "solid.extrude", json!({"sketch": "Wedge", "distance": "20 mm", "direction": "symmetric", "body_name": "Ramp"}));
run(s, "component.activate", json!({"component": "root"}));
for m in moves {
run(s, "occurrence.move", m.clone());
}
run(s, "component.create", json!({"name": "Post"}));
run(s, "sketch.create", json!({"plane": "XY", "name": "Pad"}));
run(s, "sketch.rectangle.two_point", json!({"p0": [-3, -3], "p1": [3, 3]}));
run(s, "sketch.finish", json!({}));
}
fn leg_volume(s: &mut Session) -> f64 {
run(s, "inspect.measure", json!({"bodies": ["Leg"]}))["total"]["volume_mm3"].as_f64().unwrap()
}
/// To Object on a slanted face of a body in another component whose occurrence is moved: the
/// extrude ends at the face where it is shown, not where the component's own frame has it
/// (#928: the pad ran 20 mm deep, as if the ramp had not moved).
#[test]
fn extrude_to_a_slanted_face_in_another_moved_component() {
// Moved 5 mm along +y: the face is z = -20 + (y - 5)/2, 22.5 mm below the pad on average.
let mut s = Session::default();
ramp_and_pad(&mut s, &[json!({"occurrence": "Target:1", "space": "world", "translate": [0, 5, 0]})]);
run(
&mut s,
"solid.extrude",
json!({"sketch": "Pad", "distance": "1 mm", "direction": "negative", "to": [0, 5, -20], "operation": "new", "body_name": "Leg"}),
);
let v = leg_volume(&mut s);
assert!(rel(v, 36.0 * 22.5) < 1e-6, "{v}");
// Turned a quarter turn about Z and moved 4 mm along +x: the face is z = -18 - x/2.
let mut s = Session::default();
ramp_and_pad(
&mut s,
&[json!({"occurrence": "Target:1", "space": "world", "axis": [0, 0, 1], "angle": "90 deg", "origin": [0, 0, 0], "translate": [4, 0, 0]})],
);
run(
&mut s,
"solid.extrude",
json!({"sketch": "Pad", "distance": "1 mm", "direction": "negative", "to": [0, 0, -18], "operation": "new", "body_name": "Leg"}),
);
let v = leg_volume(&mut s);
assert!(rel(v, 36.0 * 18.0) < 1e-6, "{v}");
}
/// From Object on a slanted face in another, moved component: the extrude starts where the
/// pad's middle meets the face as shown (z -22.5), not where it is in the component's frame.
#[test]
fn extrude_from_a_slanted_face_in_another_moved_component() {
let mut s = Session::default();
ramp_and_pad(&mut s, &[json!({"occurrence": "Target:1", "space": "world", "translate": [0, 5, 0]})]);
run(
&mut s,
"solid.extrude",
json!({"sketch": "Pad", "from": [0, 5, -20], "distance": 4, "direction": "negative", "operation": "new", "body_name": "Leg"}),
);
let b = s.world_state().body("Leg").unwrap().mesh().bounds();
assert!((b.max.z + 22.5).abs() < 1e-6 && (b.min.z + 26.5).abs() < 1e-6, "{b:?}");
}
/// The To face in another component is kept by name, as one in the same component is: when that
/// component's occurrence moves on, the extrude follows the face.
#[test]
fn extrude_to_a_face_in_another_component_follows_it() {
let mut s = Session::default();
ramp_and_pad(&mut s, &[json!({"occurrence": "Target:1", "space": "world", "translate": [0, 5, 0]})]);
run(
&mut s,
"solid.extrude",
json!({"sketch": "Pad", "distance": "1 mm", "direction": "negative", "to": [0, 5, -20], "operation": "new", "body_name": "Leg"}),
);
let names = s.doc.features.last().map(|f| f.face_names.clone()).unwrap_or_default();
assert!(names.first().is_some_and(|n| !n.is_empty()), "the To face is stored by name: {names:?}");
// Another 10 mm along +y: the face is z = -20 + (y - 15)/2, 27.5 mm below the pad on average.
run(&mut s, "component.activate", json!({"component": "root"}));
run(&mut s, "occurrence.move", json!({"occurrence": "Target:1", "space": "world", "translate": [0, 10, 0]}));
let v = leg_volume(&mut s);
assert!(rel(v, 36.0 * 27.5) < 1e-6, "{v}");
}
/// Revolve To a curved face of a body in another component whose occurrence is turned: the
/// sweep is cut back to the post where it is shown (here a quarter of a turn earlier, at 45°).
#[test]
fn revolve_to_a_cylinder_in_another_moved_component() {
let mut s = Session::default();
run(&mut s, "component.create", json!({"name": "Pin"}));
run(&mut s, "solid.cylinder", json!({"base": [0, 14, -5], "radius": 4, "height": 15, "body_name": "PostBody"}));
run(&mut s, "component.activate", json!({"component": "root"}));
// From 90° round to 45° about Z: the post's axis is at (14 sin 45°, 14 cos 45°).
run(&mut s, "occurrence.move", json!({"occurrence": "Pin:1", "space": "world", "axis": [0, 0, 1], "angle": "-45 deg", "origin": [0, 0, 0]}));
run(&mut s, "sketch.create", json!({"name": "Profile", "plane": "XZ"}));
run(&mut s, "sketch.rectangle.two_point", json!({"p0": [10, 0], "p1": [15, 5]}));
run(&mut s, "sketch.finish", json!({}));
let (c, sn) = ((PI / 4.0).cos(), (PI / 4.0).sin());
// The post's side nearest the profile: its axis plus 4 mm turned the same way.
let to = [14.0 * sn + 4.0 * c, 14.0 * c - 4.0 * sn, 2.0];
run(
&mut s,
"solid.revolve",
json!({"sketch": "Profile", "axis": {"origin": [0, 0, 0], "dir": [0, 0, 1]}, "to": to, "operation": "new", "body_name": "Arc"}),
);
let world = s.world_state();
let arc = &world.body("Arc").unwrap().body;
let post = &world.body("PostBody").unwrap().body;
let overlap = solidcraft_kernel::boolean(arc, post, solidcraft_kernel::BoolOp::Intersect).unwrap();
assert!(overlap.is_none_or(|b| solidcraft_kernel::measure(&b).unwrap().volume < 1e-3), "the arc runs into the post");
// Past the picked point's angle (29°) on the inner side, where the post leaves room.
let at = |r: f64, deg: f64| Vec3::new(r * deg.to_radians().cos(), r * deg.to_radians().sin(), -2.5);
assert!(arc.contains(at(10.2, 35.0)), "the arc is not cut back to the post's surface");
}
/// A To Object pick is named after the face it is on, the nearest one, even when a face of a
/// body earlier in the model lies within its naming tolerance: here a big shim of another
/// component 0.02 mm under the floor's top face. Naming the shim's face would move the point
/// onto it and end the extrude 0.02 mm too deep.
#[test]
fn extrude_to_names_the_face_it_is_on() {
for moved in [false, true] {
let mut s = Session::default();
run(&mut s, "component.create", json!({"name": "Other"}));
let z = if moved { -40.02 + 10.0 } else { -40.02 };
run(&mut s, "solid.box", json!({"corner": [-50, -50, z], "length": 100, "width": 100, "height": 20, "body_name": "Shim"}));
run(&mut s, "component.activate", json!({"component": "root"}));
if moved {
run(&mut s, "occurrence.move", json!({"occurrence": "Other:1", "space": "world", "translate": [0, 0, -10]}));
}
run(&mut s, "component.create", json!({"name": "Post"}));
run(&mut s, "solid.box", json!({"corner": [-10, -10, -30], "length": 20, "width": 20, "height": 10, "body_name": "Floor"}));
run(&mut s, "sketch.create", json!({"plane": "XY", "name": "Pad"}));
run(&mut s, "sketch.rectangle.two_point", json!({"p0": [-3, -3], "p1": [3, 3]}));
run(&mut s, "sketch.finish", json!({}));
run(
&mut s,
"solid.extrude",
json!({"sketch": "Pad", "distance": "1 mm", "direction": "negative", "to": [5, 5, -20], "operation": "new", "body_name": "Leg"}),
);
let b = s.world_state().body("Leg").unwrap().mesh().bounds();
assert!((b.min.z + 20.0).abs() < 1e-9 && b.max.z.abs() < 1e-9, "moved {moved}: {b:?}");
}
}
/// A named To face settles which face the extrude ends at: when a part of another component is
/// later placed against the target, its face through the stored point is as near as the named
/// one, and it comes earlier in the model, but the extrude still follows the slanted face.
#[test]
fn extrude_to_a_named_face_keeps_it_when_another_part_touches_it() {
let mut s = Session::default();
run(&mut s, "component.create", json!({"name": "Other"}));
// A plate whose top face is z = 50, out of the way for now.
run(&mut s, "solid.box", json!({"corner": [-50, -50, 30], "length": 100, "width": 100, "height": 20, "body_name": "Plate"}));
run(&mut s, "component.activate", json!({"component": "root"}));
run(&mut s, "component.create", json!({"name": "Post"}));
// The ramp in the extrude's own component: top face z = -20 + y/2.
run(&mut s, "sketch.create", json!({"plane": "YZ", "name": "Wedge"}));
run(&mut s, "sketch.line", json!({"points": [[-20, -30], [20, -30], [20, -10], [-20, -30]]}));
run(&mut s, "sketch.finish", json!({}));
run(&mut s, "solid.extrude", json!({"sketch": "Wedge", "distance": "20 mm", "direction": "symmetric", "body_name": "Ramp"}));
run(&mut s, "sketch.create", json!({"plane": "XY", "name": "Pad"}));
run(&mut s, "sketch.rectangle.two_point", json!({"p0": [-3, -3], "p1": [3, 3]}));
run(&mut s, "sketch.finish", json!({}));
run(
&mut s,
"solid.extrude",
json!({"sketch": "Pad", "distance": "1 mm", "direction": "negative", "to": [0, 2, -19], "operation": "new", "body_name": "Leg"}),
);
assert!(rel(leg_volume(&mut s), 36.0 * 20.0) < 1e-6, "{}", leg_volume(&mut s));
// The plate lowered so its top face runs through the To point (z = -19).
run(&mut s, "component.activate", json!({"component": "root"}));
run(&mut s, "occurrence.move", json!({"occurrence": "Other:1", "space": "world", "translate": [0, 0, -69]}));
let v = leg_volume(&mut s);
assert!(rel(v, 36.0 * 20.0) < 1e-6, "the extrude ended at the plate: {v}");
}