diff --git a/ATTRIBUTION.md b/ATTRIBUTION.md
index 683a40d..cc770aa 100644
--- a/ATTRIBUTION.md
+++ b/ATTRIBUTION.md
@@ -38,6 +38,8 @@ is committed and listed here with its exports.
| assets/icons/file.save.svg, assets/icons/file.save.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/file.save.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
| assets/icons/geometry.bodies.svg, assets/icons/geometry.bodies.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.bodies.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
| assets/icons/geometry.datum.svg, assets/icons/geometry.datum.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.datum.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.datum.axis.svg, assets/icons/geometry.datum.axis.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.datum.axis.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
+| assets/icons/geometry.datum.point.svg, assets/icons/geometry.datum.point.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.datum.point.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
| assets/icons/geometry.import.mesh.svg, assets/icons/geometry.import.mesh.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.import.mesh.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
| assets/icons/geometry.midsurface.svg, assets/icons/geometry.midsurface.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.midsurface.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
| assets/icons/geometry.open.svg, assets/icons/geometry.open.vectorcraft | FieldCraft contributors | Original toolbar icon drawn with VectorCraft from `assets/icons/src/geometry.open.json` (`cargo xtask icons`) | MIT OR Apache-2.0 |
diff --git a/assets/icons/geometry.datum.axis.svg b/assets/icons/geometry.datum.axis.svg
new file mode 100644
index 0000000..e11febb
--- /dev/null
+++ b/assets/icons/geometry.datum.axis.svg
@@ -0,0 +1,11 @@
+
+
diff --git a/assets/icons/geometry.datum.axis.vectorcraft b/assets/icons/geometry.datum.axis.vectorcraft
new file mode 100644
index 0000000..f51eef6
Binary files /dev/null and b/assets/icons/geometry.datum.axis.vectorcraft differ
diff --git a/assets/icons/geometry.datum.point.svg b/assets/icons/geometry.datum.point.svg
new file mode 100644
index 0000000..dd5681d
--- /dev/null
+++ b/assets/icons/geometry.datum.point.svg
@@ -0,0 +1,10 @@
+
+
diff --git a/assets/icons/geometry.datum.point.vectorcraft b/assets/icons/geometry.datum.point.vectorcraft
new file mode 100644
index 0000000..e63fdbc
Binary files /dev/null and b/assets/icons/geometry.datum.point.vectorcraft differ
diff --git a/assets/icons/src/geometry.datum.axis.json b/assets/icons/src/geometry.datum.axis.json
new file mode 100644
index 0000000..30ce973
--- /dev/null
+++ b/assets/icons/src/geometry.datum.axis.json
@@ -0,0 +1 @@
+{"shapes": [{"d": "M7 17 L19 5", "stroke": "accent", "width": 2}, {"d": "M20 4 L15 5.2 M20 4 L18.8 9", "stroke": "accent", "width": 2}, {"d": "M5.5 18.5 L2.5 21.5", "stroke": "line", "dash": [1.5, 2]}, {"circle": [12, 12, 3.2], "fill": "soft", "stroke": "line", "width": 1.25}, {"circle": [12, 12, 1.4], "fill": "warm", "stroke": null}]}
diff --git a/assets/icons/src/geometry.datum.point.json b/assets/icons/src/geometry.datum.point.json
new file mode 100644
index 0000000..b0854ff
--- /dev/null
+++ b/assets/icons/src/geometry.datum.point.json
@@ -0,0 +1 @@
+{"shapes": [{"d": "M3 16 L9 10 L21 10 L15 16 Z", "fill": "soft", "stroke": "line", "width": 1.25}, {"d": "M12 3 L12 11 M8 7 L16 7", "stroke": "accent", "width": 2}, {"circle": [12, 7, 1.8], "fill": "warm", "stroke": null}, {"d": "M12 12.5 L12 20", "stroke": "line", "dash": [1.5, 2]}]}
diff --git a/crates/engine/src/catalogue.rs b/crates/engine/src/catalogue.rs
index b660366..a40d04f 100644
--- a/crates/engine/src/catalogue.rs
+++ b/crates/engine/src/catalogue.rs
@@ -155,8 +155,9 @@ pub struct Capability {
pub status: Status,
/// Related commands in the entry's drop-down (edit, delete…).
pub more: &'static [&'static str],
- /// Commands the entry's own form covers (an option of it does the same): claimed by the entry
- /// for the command search and the ribbon's stage, but not listed in the ribbon.
+ /// Commands the entry's own form covers (an option of it does the same), or that act on what
+ /// it makes from the browser's item menu (edit, delete): claimed by the entry for the command
+ /// search and the ribbon's stage, but not listed in the ribbon.
pub covers: &'static [&'static str],
}
@@ -246,15 +247,32 @@ pub static CATALOGUE: &[Capability] = &[
"Inspect",
"Weld, closed, manifold, orientation and self-intersection checks; feature edges",
),
- ready_more(
+ // Edit and delete of datums and partitions are on the browser's item menu, not the ribbon.
+ covering(
"geometry.datum",
"Datum Plane",
Geometry,
"Prepare",
- "Datum planes (principal plane and offset, three points, point and normal) and axes",
- &["geometry.datum.axis", "geometry.datum.delete"],
+ "A datum plane: principal plane and offset, three points or datum points, point and normal, normal to an axis",
+ &["geometry.datum.edit", "geometry.datum.delete"],
),
- ready_more(
+ covering(
+ "geometry.datum.axis",
+ "Datum Axis",
+ Geometry,
+ "Prepare",
+ "A datum axis: principal axis, two points or datum points, point and direction",
+ &["geometry.datum.axis.edit"],
+ ),
+ covering(
+ "geometry.datum.point",
+ "Datum Point",
+ Geometry,
+ "Prepare",
+ "A datum point: coordinates, a mesh vertex, along an edge, a face's centre, an axis through a plane",
+ &["geometry.datum.point.edit"],
+ ),
+ covering(
"geometry.partition",
"Partition",
Geometry,
diff --git a/crates/engine/src/cmd/datum.rs b/crates/engine/src/cmd/datum.rs
index 40e8dcb..e837bd9 100644
--- a/crates/engine/src/cmd/datum.rs
+++ b/crates/engine/src/cmd/datum.rs
@@ -1,6 +1,10 @@
-//! Datum planes and axes, and partitions of the open design by datum planes.
+//! Datum planes, axes and points, and partitions of the open design by datum planes.
//!
-//! Datums and partitions are part of the model (`fieldcraft_model::datums`). A partition cuts the
+//! Datums and partitions are part of the model (`fieldcraft_model::datums`). A datum point is
+//! placed by coordinates, at a mesh vertex, along a design edge, at a design face's centre or
+//! where a datum axis crosses a datum plane; planes and axes can be made through datum points.
+//! Each takes the coordinates of what it is made from when it is made (a later edit of a datum
+//! point leaves the planes and axes made through it where they are). A partition cuts the
//! design in memory (`fieldcraft_geometry::partition`); the model's partitions are applied again,
//! in order, whenever the design is opened (`geometry.open`, `file.open`, samples), so an edit
//! of the design followed by a re-open replays them.
@@ -19,7 +23,7 @@ use crate::{CommandKind, CommandSpec, EngineError, Result, Session};
pub const DATUM_PLANE: CommandSpec = CommandSpec {
id: "geometry.datum",
label: "Datum Plane",
- params: r#"{"name": "Mid", "by": {"type": "offset", "plane": "yz" | "zx" | "xy", "offset": 15} | {"type": "three_points", "a": [x, y, z], "b": […], "c": […]} | {"type": "point_normal", "point": [x, y, z], "normal": [nx, ny, nz]}} — a named datum plane (model coordinates, mm for SolidCraft geometry): a principal plane moved along its normal (yz: normal +x, zx: normal +y, xy: normal +z), through three points (normal (b − a) × (c − a)), or through a point with a normal. Partitions (geometry.partition) cut by it; shown in the viewport"#,
+ params: r#"{"name": "Mid", "by": {"type": "offset", "plane": "yz" | "zx" | "xy", "offset": 15} | {"type": "three_points", "a": [x, y, z], "b": […], "c": […]} | {"type": "point_normal", "point": [x, y, z], "normal": [nx, ny, nz]} | {"type": "datum_points", "a": "P1", "b": "P2", "c": "P3"} | {"type": "normal_to_axis", "axis": "Spindle", "point"?: "P1"}} — a named datum plane (model coordinates, mm for SolidCraft geometry): a principal plane moved along its normal (yz: normal +x, zx: normal +y, xy: normal +z), through three points or three datum points (normal (b − a) × (c − a)), through a point with a normal, or normal to a datum axis through a datum point (the axis's point by default). Partitions (geometry.partition) cut by it; shown in the viewport"#,
form: Some(super::forms::DATUM_PLANE),
kind: CommandKind::Model,
requires: &[],
@@ -29,17 +33,57 @@ pub const DATUM_PLANE: CommandSpec = CommandSpec {
pub const DATUM_AXIS: CommandSpec = CommandSpec {
id: "geometry.datum.axis",
label: "Datum Axis",
- params: r#"{"name": "Spindle", "by": {"type": "principal", "axis": "x" | "y" | "z", "through"?: [x, y, z] (default the origin)} | {"type": "two_points", "a": [x, y, z], "b": […]} | {"type": "point_direction", "point": [x, y, z], "direction": [dx, dy, dz]}} — a named datum axis, shown in the viewport"#,
+ params: r#"{"name": "Spindle", "by": {"type": "principal", "axis": "x" | "y" | "z", "through"?: [x, y, z] (default the origin)} | {"type": "two_points", "a": [x, y, z], "b": […]} | {"type": "point_direction", "point": [x, y, z], "direction": [dx, dy, dz]} | {"type": "datum_points", "a": "P1", "b": "P2"}} — a named datum axis, shown in the viewport"#,
form: Some(super::forms::DATUM_AXIS),
kind: CommandKind::Model,
requires: &[],
run: datum_axis,
};
+pub const DATUM_POINT: CommandSpec = CommandSpec {
+ id: "geometry.datum.point",
+ label: "Datum Point",
+ params: r#"{"name": "P1", "by": {"type": "coordinates", "point": [x, y, z]} | {"type": "vertex", "body": "Body1", "vertex": "v3"} | {"type": "edge", "body": "Body1", "edge": "F1:top|F2:side", "fraction"?: 0.5} | {"type": "face_centre", "body": "Body1", "face": "F2:top"} | {"type": "axis_plane", "axis": "Spindle", "plane": "Mid"}} — a named datum point, shown in the viewport as a small cross: at coordinates, at a vertex of the mesh (as its geometry tags name it), a fraction along an edge of the open design (0.5: its midpoint), at the area centre of a face of the open design, or where a datum axis crosses a datum plane. Datum planes and axes can be made through datum points"#,
+ form: Some(super::forms::DATUM_POINT),
+ kind: CommandKind::Model,
+ requires: &[],
+ run: datum_point,
+};
+
+pub const DATUM_EDIT: CommandSpec = CommandSpec {
+ id: "geometry.datum.edit",
+ label: "Edit Datum Plane",
+ params: r#"{"name": "Mid", "by": …} — redefines a datum plane (the parameters of geometry.datum); the partitions that cut by it cut again"#,
+ form: Some(super::forms::DATUM_PLANE),
+ kind: CommandKind::Model,
+ requires: &[Requirement::DatumPlane],
+ run: |s, p| datum_edit(s, p, "plane"),
+};
+
+pub const DATUM_AXIS_EDIT: CommandSpec = CommandSpec {
+ id: "geometry.datum.axis.edit",
+ label: "Edit Datum Axis",
+ params: r#"{"name": "Spindle", "by": …} — redefines a datum axis (the parameters of geometry.datum.axis)"#,
+ form: Some(super::forms::DATUM_AXIS),
+ kind: CommandKind::Model,
+ requires: &[Requirement::DatumAxis],
+ run: |s, p| datum_edit(s, p, "axis"),
+};
+
+pub const DATUM_POINT_EDIT: CommandSpec = CommandSpec {
+ id: "geometry.datum.point.edit",
+ label: "Edit Datum Point",
+ params: r#"{"name": "P1", "by": …} — redefines a datum point (the parameters of geometry.datum.point); planes and axes made through it stay where they are"#,
+ form: Some(super::forms::DATUM_POINT),
+ kind: CommandKind::Model,
+ requires: &[Requirement::DatumPoint],
+ run: |s, p| datum_edit(s, p, "point"),
+};
+
pub const DATUM_DELETE: CommandSpec = CommandSpec {
id: "geometry.datum.delete",
label: "Delete Datum",
- params: r#"{"name": "Mid"} — deletes a datum plane or axis no partition uses"#,
+ params: r#"{"name": "Mid", "cascade"?: false} — deletes a datum plane, axis or point; one a partition cuts by is refused (naming the partitions), unless `cascade` deletes those partitions too"#,
form: Some(super::forms::DATUM_DELETE),
kind: CommandKind::Model,
requires: &[Requirement::Datum],
@@ -91,6 +135,16 @@ enum PlaneBy {
point: [f64; 3],
normal: [f64; 3],
},
+ DatumPoints {
+ a: String,
+ b: String,
+ c: String,
+ },
+ NormalToAxis {
+ axis: String,
+ #[serde(default)]
+ point: Option,
+ },
}
#[derive(Deserialize)]
@@ -117,13 +171,74 @@ enum AxisBy {
point: [f64; 3],
direction: [f64; 3],
},
+ DatumPoints {
+ a: String,
+ b: String,
+ },
+}
+
+fn half() -> f64 {
+ 0.5
+}
+
+#[derive(Deserialize)]
+#[serde(tag = "type", rename_all = "snake_case", deny_unknown_fields)]
+enum PointBy {
+ Coordinates {
+ point: [f64; 3],
+ },
+ Vertex {
+ body: String,
+ vertex: String,
+ },
+ Edge {
+ body: String,
+ edge: String,
+ #[serde(default = "half")]
+ fraction: f64,
+ },
+ FaceCentre {
+ body: String,
+ face: String,
+ },
+ AxisPlane {
+ axis: String,
+ plane: String,
+ },
}
fn sub(a: [f64; 3], b: [f64; 3]) -> [f64; 3] {
[a[0] - b[0], a[1] - b[1], a[2] - b[2]]
}
-fn plane_datum(by: PlaneBy) -> Result {
+/// The coordinates of datum point `name`.
+fn datum_point_at(m: &Model, name: &str) -> Result<[f64; 3]> {
+ match m.datum(name) {
+ Some(d) => d.point().ok_or_else(|| EngineError::Params(format!("datum `{name}` is a datum {}, not a point", d.kind()))),
+ None => Err(EngineError::Params(format!("no datum point `{name}`"))),
+ }
+}
+
+/// The point and unit direction of datum axis `name`.
+fn datum_axis_of(m: &Model, name: &str) -> Result<([f64; 3], [f64; 3])> {
+ match m.datum(name) {
+ Some(d) => d.axis().ok_or_else(|| EngineError::Params(format!("datum `{name}` is a datum {}, not an axis", d.kind()))),
+ None => Err(EngineError::Params(format!("no datum axis `{name}`"))),
+ }
+}
+
+/// A plane through three points; collinear points are refused relative to their spread.
+fn three_points(a: [f64; 3], b: [f64; 3], c: [f64; 3]) -> Result {
+ let (u, v) = (sub(b, a), sub(c, a));
+ let n = [u[1] * v[2] - u[2] * v[1], u[2] * v[0] - u[0] * v[2], u[0] * v[1] - u[1] * v[0]];
+ let size = u.iter().chain(&v).map(|x| x * x).sum::();
+ if !(n.iter().map(|x| x * x).sum::() > 1e-20 * size * size) {
+ return Err(EngineError::Params("the three points must not lie on one line".into()));
+ }
+ Ok(Datum::Plane { point: a, normal: n })
+}
+
+fn plane_datum(m: &Model, by: PlaneBy) -> Result {
Ok(match by {
PlaneBy::Offset { plane, offset } => {
if !offset.is_finite() {
@@ -136,22 +251,22 @@ fn plane_datum(by: PlaneBy) -> Result {
};
Datum::Plane { point: normal.map(|n| n * offset), normal }
}
- PlaneBy::ThreePoints { a, b, c } => {
- let (u, v) = (sub(b, a), sub(c, a));
- let n = [u[1] * v[2] - u[2] * v[1], u[2] * v[0] - u[0] * v[2], u[0] * v[1] - u[1] * v[0]];
- // Collinear points: refused relative to the points' spread.
- let size = u.iter().chain(&v).map(|x| x * x).sum::();
- if !(n.iter().map(|x| x * x).sum::() > 1e-20 * size * size) {
- return Err(EngineError::Params("the three points must not lie on one line".into()));
- }
- Datum::Plane { point: a, normal: n }
- }
+ PlaneBy::ThreePoints { a, b, c } => three_points(a, b, c)?,
PlaneBy::PointNormal { point, normal } => Datum::Plane { point, normal },
+ PlaneBy::DatumPoints { a, b, c } => three_points(datum_point_at(m, &a)?, datum_point_at(m, &b)?, datum_point_at(m, &c)?)?,
+ PlaneBy::NormalToAxis { axis, point } => {
+ let (on_axis, direction) = datum_axis_of(m, &axis)?;
+ let point = match point {
+ Some(p) => datum_point_at(m, &p)?,
+ None => on_axis,
+ };
+ Datum::Plane { point, normal: direction }
+ }
})
}
-fn axis_datum(by: AxisBy) -> Datum {
- match by {
+fn axis_datum(m: &Model, by: AxisBy) -> Result {
+ Ok(match by {
AxisBy::Principal { axis, through } => {
let direction = match axis {
Axis::X => [1.0, 0.0, 0.0],
@@ -162,6 +277,80 @@ fn axis_datum(by: AxisBy) -> Datum {
}
AxisBy::TwoPoints { a, b } => Datum::Axis { point: a, direction: sub(b, a) },
AxisBy::PointDirection { point, direction } => Datum::Axis { point, direction },
+ AxisBy::DatumPoints { a, b } => {
+ let a = datum_point_at(m, &a)?;
+ Datum::Axis { point: a, direction: sub(datum_point_at(m, &b)?, a) }
+ }
+ })
+}
+
+/// Most mesh nodes a vertex is looked for among.
+const MAX_VERTEX_NODES: usize = 10_000_000;
+
+fn point_datum(s: &Session, by: PointBy) -> Result {
+ let shape = |body: &str| -> Result<&fieldcraft_geometry::Shape> {
+ let design = s.design.as_deref().ok_or_else(|| EngineError::Params("open a design first".into()))?;
+ design.body(body).ok_or_else(|| EngineError::Params(format!("the design has no body `{body}`")))
+ };
+ let point = match by {
+ PointBy::Coordinates { point } => point,
+ PointBy::Vertex { body, vertex } => {
+ let m = &s.model;
+ let at = fieldcraft_model::GeometryRef::new(body.clone(), fieldcraft_model::Entity::Vertex(vertex.clone()))?;
+ let tags = m.classification().tags_selected_by(&at);
+ let node =
+ m.classification().nodes().iter().take(MAX_VERTEX_NODES).find(|(_, t)| tags.contains(t)).and_then(|(n, _)| m.node(*n)).ok_or_else(
+ || EngineError::Params(format!("vertex `{vertex}` of body `{body}` is on no mesh node (vertices are named on meshed bodies)")),
+ )?;
+ node.xyz
+ }
+ PointBy::Edge { body, edge, fraction } => {
+ if !(0.0..=1.0).contains(&fraction) {
+ return Err(EngineError::invalid("fraction", "is a number from 0 to 1".to_string()));
+ }
+ let edges = shape(&body)?.edges()?;
+ let e = edges.iter().find(|e| e.name == edge).ok_or_else(|| EngineError::Params(format!("body `{body}` has no edge `{edge}`")))?;
+ e.point_at(fraction).ok_or_else(|| EngineError::Params(format!("edge `{edge}` of body `{body}` has no points")))?
+ }
+ PointBy::FaceCentre { body, face } => shape(&body)?.face_centre(&face)?,
+ PointBy::AxisPlane { axis, plane } => {
+ let (p, d) = datum_axis_of(&s.model, &axis)?;
+ let (q, n) = match s.model.datum(&plane) {
+ Some(x) => x.plane().ok_or_else(|| EngineError::Params(format!("datum `{plane}` is a datum {}, not a plane", x.kind())))?,
+ None => return Err(EngineError::Params(format!("no datum plane `{plane}`"))),
+ };
+ let along = |a: [f64; 3], b: [f64; 3]| a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+ let across = along(d, n);
+ // Unit vectors: the sine of the angle between the axis and the plane.
+ if across.abs() < 1e-9 {
+ return Err(EngineError::Params(format!("axis `{axis}` is parallel to plane `{plane}`: they do not cross")));
+ }
+ let t = along(sub(q, p), n) / across;
+ [p[0] + t * d[0], p[1] + t * d[1], p[2] + t * d[2]]
+ }
+ };
+ Ok(Datum::Point { point })
+}
+
+/// The datum `by` defines for a datum of `kind` (`plane`, `axis` or `point`).
+fn datum_of(s: &Session, kind: &str, p: &Value) -> Result {
+ match kind {
+ "plane" => plane_datum(&s.model, super::req(p, "by")?),
+ "axis" => axis_datum(&s.model, super::req(p, "by")?),
+ _ => point_datum(s, super::req(p, "by")?),
+ }
+}
+
+/// The parameters of the command that edits datum `name`, describing it as it is (a plane by
+/// its point and normal, an axis by its point and direction, a point by its coordinates); and
+/// that command.
+pub fn edit_params(name: &str, d: &Datum) -> (&'static str, Value) {
+ match *d {
+ Datum::Plane { point, normal } => (DATUM_EDIT.id, json!({"name": name, "by": {"type": "point_normal", "point": point, "normal": normal}})),
+ Datum::Axis { point, direction } => {
+ (DATUM_AXIS_EDIT.id, json!({"name": name, "by": {"type": "point_direction", "point": point, "direction": direction}}))
+ }
+ Datum::Point { point } => (DATUM_POINT_EDIT.id, json!({"name": name, "by": {"type": "coordinates", "point": point}})),
}
}
@@ -173,24 +362,55 @@ fn datum_json(name: &str, d: &Datum) -> Value {
v
}
-fn datum_plane(s: &mut Session, p: &Value) -> Result {
+fn datum_create(s: &mut Session, p: &Value, kind: &str) -> Result {
let name = super::name(p)?;
- let datum = plane_datum(super::req(p, "by")?)?;
+ let datum = datum_of(s, kind, p)?;
s.model.add_datum(name, datum)?;
Ok(datum_json(name, s.model.datum(name).unwrap_or(&datum)))
}
+fn datum_plane(s: &mut Session, p: &Value) -> Result {
+ datum_create(s, p, "plane")
+}
+
fn datum_axis(s: &mut Session, p: &Value) -> Result {
+ datum_create(s, p, "axis")
+}
+
+fn datum_point(s: &mut Session, p: &Value) -> Result {
+ datum_create(s, p, "point")
+}
+
+/// Redefine datum `name` of `kind`; the partitions that cut by a plane cut again.
+fn datum_edit(s: &mut Session, p: &Value, kind: &str) -> Result {
let name = super::name(p)?;
- let datum = axis_datum(super::req(p, "by")?);
- s.model.add_datum(name, datum)?;
+ match s.model.datum(name) {
+ Some(d) if d.kind() == kind => {}
+ Some(d) => return Err(EngineError::Params(format!("datum `{name}` is a datum {}, not a {kind}", d.kind()))),
+ None => return Err(EngineError::Params(format!("no datum {kind} `{name}`"))),
+ }
+ let datum = datum_of(s, kind, p)?;
+ s.model.replace_datum(name, datum)?;
+ if !s.model.datum_users(name).is_empty() {
+ recut(s)?;
+ }
Ok(datum_json(name, s.model.datum(name).unwrap_or(&datum)))
}
fn datum_delete(s: &mut Session, p: &Value) -> Result {
let name = super::name(p)?;
+ let cascade: bool = super::opt(p, "cascade")?.unwrap_or(false);
+ let partitions: Vec = s.model.partitions().iter().filter(|x| x.datum == name).map(|x| x.name.clone()).collect();
+ if cascade {
+ for partition in &partitions {
+ s.model.remove_partition(partition)?;
+ }
+ }
s.model.remove_datum(name)?;
- Ok(json!({"deleted": name}))
+ if cascade && !partitions.is_empty() {
+ recut(s)?;
+ }
+ Ok(json!({"deleted": name, "partitions": if cascade { partitions } else { Vec::new() }}))
}
/// The model's partitions as cuts of the geometry.
@@ -362,6 +582,117 @@ pub(crate) mod tests {
let _ = std::fs::remove_dir_all(&dir);
}
+ #[test]
+ fn datum_points_by_each_definition_and_planes_and_axes_through_them() {
+ let (mut s, dir) = plate();
+ let point = |s: &Session, n: &str| s.model.datum(n).and_then(Datum::point).unwrap();
+ let close = |a: [f64; 3], b: [f64; 3]| a.iter().zip(&b).all(|(x, y)| (x - y).abs() < 1e-6);
+ s.execute("geometry.datum.point", &json!({"name": "O", "by": {"type": "coordinates", "point": [0, 0, 0]}})).unwrap();
+ s.execute("geometry.datum.point", &json!({"name": "X", "by": {"type": "coordinates", "point": [10, 0, 0]}})).unwrap();
+ s.execute("geometry.datum.point", &json!({"name": "Y", "by": {"type": "coordinates", "point": [0, 10, 0]}})).unwrap();
+ // The plate's edge along x at y = 0, z = 0, its midpoint and a quarter along it.
+ let body = s.design.as_ref().unwrap().bodies[0].clone();
+ let edge = body.edges().unwrap().into_iter().find(|e| e.points.iter().all(|p| p[1].abs() < 1e-9 && p[2].abs() < 1e-9)).unwrap();
+ let by = |fraction: f64| json!({"type": "edge", "body": body.name, "edge": edge.name, "fraction": fraction});
+ s.execute("geometry.datum.point", &json!({"name": "Mid", "by": {"type": "edge", "body": body.name, "edge": edge.name}})).unwrap();
+ assert!(close(point(&s, "Mid"), [20.0, 0.0, 0.0]), "{:?}", point(&s, "Mid"));
+ s.execute("geometry.datum.point", &json!({"name": "Q", "by": by(0.25)})).unwrap();
+ let q = point(&s, "Q");
+ assert!((q[0] - 10.0).abs() < 1e-6 || (q[0] - 30.0).abs() < 1e-6, "{q:?}");
+ // The centre of the face at x = 0.
+ let side =
+ body.face_surfaces().unwrap().iter().position(
+ |f| matches!(f, Some(fieldcraft_geometry::FaceSurface::Plane { normal, point }) if normal[0] < -0.5 && point[0].abs() < 1e-9),
+ );
+ let face = body.faces()[side.unwrap()].name.clone();
+ s.execute("geometry.datum.point", &json!({"name": "C", "by": {"type": "face_centre", "body": body.name, "face": face}})).unwrap();
+ assert!(close(point(&s, "C"), [0.0, 15.0, 5.0]), "{:?}", point(&s, "C"));
+
+ // Planes and axes through datum points; a point where an axis crosses a plane.
+ let r = s.execute("geometry.datum", &json!({"name": "Base", "by": {"type": "datum_points", "a": "O", "b": "X", "c": "Y"}})).unwrap();
+ assert_eq!(r["normal"], json!([0.0, 0.0, 1.0]));
+ s.execute("geometry.datum.axis", &json!({"name": "Ax", "by": {"type": "datum_points", "a": "O", "b": "X"}})).unwrap();
+ assert_eq!(s.model.datum("Ax"), Some(&Datum::Axis { point: [0.0; 3], direction: [1.0, 0.0, 0.0] }));
+ s.execute("geometry.datum", &json!({"name": "Cut", "by": {"type": "normal_to_axis", "axis": "Ax", "point": "Mid"}})).unwrap();
+ assert_eq!(s.model.datum("Cut"), Some(&Datum::Plane { point: point(&s, "Mid"), normal: [1.0, 0.0, 0.0] }));
+ s.execute("geometry.datum.point", &json!({"name": "Hit", "by": {"type": "axis_plane", "axis": "Ax", "plane": "Cut"}})).unwrap();
+ assert!(close(point(&s, "Hit"), [20.0, 0.0, 0.0]));
+
+ let journal = s.journal.len();
+ for p in [
+ json!({"name": "Z", "by": {"type": "axis_plane", "axis": "Ax", "plane": "Base"}}),
+ json!({"name": "Z", "by": {"type": "axis_plane", "axis": "Base", "plane": "Cut"}}),
+ json!({"name": "Z", "by": {"type": "edge", "body": body.name, "edge": edge.name, "fraction": 2}}),
+ json!({"name": "Z", "by": {"type": "edge", "body": body.name, "edge": "nope"}}),
+ json!({"name": "Z", "by": {"type": "edge", "body": "Nope", "edge": edge.name}}),
+ json!({"name": "Z", "by": {"type": "face_centre", "body": body.name, "face": "nope"}}),
+ // No mesh: no vertex is named.
+ json!({"name": "Z", "by": {"type": "vertex", "body": body.name, "vertex": "v1"}}),
+ json!({"name": "Z", "by": {"type": "coordinates", "point": [f64::MAX, 0, 0]}}),
+ json!({"name": "Z", "by": {"type": "coordinates", "point": [0, 0]}}),
+ ] {
+ assert!(s.execute("geometry.datum.point", &p).is_err(), "{p}");
+ }
+ for (command, p) in [
+ ("geometry.datum", json!({"name": "Z", "by": {"type": "datum_points", "a": "O", "b": "X", "c": "Mid"}})),
+ ("geometry.datum", json!({"name": "Z", "by": {"type": "datum_points", "a": "O", "b": "X", "c": "Ax"}})),
+ ("geometry.datum", json!({"name": "Z", "by": {"type": "normal_to_axis", "axis": "Nope"}})),
+ ("geometry.datum.axis", json!({"name": "Z", "by": {"type": "datum_points", "a": "O", "b": "O"}})),
+ ] {
+ assert!(s.execute(command, &p).is_err(), "{p}");
+ }
+ assert_eq!(s.journal.len(), journal);
+ let _ = std::fs::remove_dir_all(&dir);
+ }
+
+ #[test]
+ fn a_vertex_point_is_at_the_tagged_mesh_node() {
+ let mut s = Session::default();
+ s.execute(
+ "mesh.block",
+ &json!({"body": "Bar", "kind": "hex8", "corners": [[0,0,0],[4,0,0],[4,1,0],[0,1,0],[0,0,1],[4,0,1],[4,1,1],[0,1,1]], "divisions": [2, 1, 1], "vertices": {"7": "tip"}}),
+ )
+ .unwrap();
+ s.execute("geometry.datum.point", &json!({"name": "Tip", "by": {"type": "vertex", "body": "Bar", "vertex": "tip"}})).unwrap();
+ assert_eq!(s.model.datum("Tip").and_then(Datum::point), Some([4.0, 1.0, 1.0]));
+ }
+
+ #[test]
+ fn editing_and_deleting_datums_follow_their_partitions() {
+ let (mut s, dir) = plate();
+ s.execute("geometry.datum", &json!({"name": "Mid", "by": {"type": "offset", "plane": "yz", "offset": 15}})).unwrap();
+ s.execute("geometry.datum.axis", &json!({"name": "Ax", "by": {"type": "principal", "axis": "x"}})).unwrap();
+ s.execute("geometry.partition", &json!({"name": "Half", "datum": "Mid"})).unwrap();
+ let cut_at = |s: &Session| s.design.as_ref().unwrap().bodies[0].measure().unwrap().bbox_max[0];
+ assert!((cut_at(&s) - 15.0).abs() < 1e-6);
+
+ // Moving the plane cuts again; an edit of the wrong kind or to an axis is refused.
+ s.execute("geometry.datum.edit", &json!({"name": "Mid", "by": {"type": "offset", "plane": "yz", "offset": 25}})).unwrap();
+ assert!((cut_at(&s) - 25.0).abs() < 1e-6);
+ assert!(s.execute("geometry.datum.axis.edit", &json!({"name": "Mid", "by": {"type": "principal", "axis": "y"}})).is_err());
+ assert!(s.execute("geometry.datum.edit", &json!({"name": "Ax", "by": {"type": "offset", "plane": "xy"}})).is_err());
+ s.execute("geometry.datum.axis.edit", &json!({"name": "Ax", "by": {"type": "principal", "axis": "y"}})).unwrap();
+ assert_eq!(s.model.datum("Ax"), Some(&Datum::Axis { point: [0.0; 3], direction: [0.0, 1.0, 0.0] }));
+
+ // The edit commands take the parameters edit_params gives back.
+ for name in ["Mid", "Ax"] {
+ let (command, params) = edit_params(name, s.model.datum(name).unwrap());
+ s.execute(command, ¶ms).unwrap();
+ }
+
+ // Deleting the plane names its partition, or deletes it too.
+ let e = s.execute("geometry.datum.delete", &json!({"name": "Mid"})).unwrap_err().to_string();
+ assert!(e.contains("partition `Half`"), "{e}");
+ let r = s.execute("geometry.datum.delete", &json!({"name": "Mid", "cascade": true})).unwrap();
+ assert_eq!(r["partitions"], json!(["Half"]));
+ assert!(s.model.partitions().is_empty() && s.model.datum("Mid").is_none());
+ assert_eq!(bodies(&s).len(), 1);
+ // One undo step brings both back.
+ s.execute("edit.undo", &json!({})).unwrap();
+ assert_eq!((s.model.partitions().len(), bodies(&s).len()), (1, 2));
+ let _ = std::fs::remove_dir_all(&dir);
+ }
+
#[test]
fn a_partition_that_cuts_nothing_changes_nothing() {
let (mut s, dir) = plate();
diff --git a/crates/engine/src/cmd/forms.rs b/crates/engine/src/cmd/forms.rs
index 11530b1..2f63789 100644
--- a/crates/engine/src/cmd/forms.rs
+++ b/crates/engine/src/cmd/forms.rs
@@ -1277,6 +1277,25 @@ pub const DATUM_PLANE: &[Field] = &[
xyz("normal", "Normal", D::None).help("The plane's normal direction.").req(),
],
),
+ variant(
+ "datum_points",
+ "Three datum points",
+ &[
+ reference("a", "Point A", C::DatumPoint).help("First datum point.").req(),
+ reference("b", "Point B", C::DatumPoint).help("Second datum point.").req(),
+ reference("c", "Point C", C::DatumPoint).help("Third datum point.").req(),
+ ],
+ ),
+ variant(
+ "normal_to_axis",
+ "Normal to an axis",
+ &[
+ reference("axis", "Axis", C::DatumAxis).help("The datum axis the plane is normal to.").req(),
+ reference("point", "Through", C::DatumPoint)
+ .help("A datum point on the plane; the axis's own point when empty.")
+ .hint("the axis's point"),
+ ],
+ ),
],
)
.help("How the plane is defined.")
@@ -1313,13 +1332,70 @@ pub const DATUM_AXIS: &[Field] = &[
xyz("direction", "Direction", D::None).help("The axis direction.").req(),
],
),
+ variant(
+ "datum_points",
+ "Two datum points",
+ &[
+ reference("a", "Point A", C::DatumPoint).help("First datum point on the axis.").req(),
+ reference("b", "Point B", C::DatumPoint).help("Second datum point on the axis.").req(),
+ ],
+ ),
],
)
.help("How the axis is defined.")
.req()
.def(r#"{"type": "principal"}"#),
];
-pub const DATUM_DELETE: &[Field] = existing!("Datum", C::Datum);
+pub const DATUM_POINT: &[Field] = &[
+ NAME,
+ variants(
+ "by",
+ "Definition",
+ &[
+ variant("coordinates", "Coordinates", &[xyz("point", "Point", POINT).help("The point's coordinates.").req()]),
+ variant(
+ "vertex",
+ "Mesh vertex",
+ &[
+ reference("body", "Body", C::Body).help("The body the vertex belongs to.").req(),
+ text("vertex", "Vertex").help("The vertex's name, as the mesh tags it.").req(),
+ ],
+ ),
+ variant(
+ "edge",
+ "On an edge",
+ &[
+ reference("body", "Body", C::Body).help("The body the edge belongs to.").req(),
+ text("edge", "Edge").help("The edge's persistent name.").req(),
+ range("fraction", "Fraction", D::None, 0.0, 1.0).help("How far along the edge from its start: 0.5 is its midpoint.").def("0.5"),
+ ],
+ ),
+ variant(
+ "face_centre",
+ "Face centre",
+ &[
+ reference("body", "Body", C::Body).help("The body the face belongs to.").req(),
+ text("face", "Face").help("The face's persistent name.").req(),
+ ],
+ ),
+ variant(
+ "axis_plane",
+ "Axis and plane",
+ &[
+ reference("axis", "Axis", C::DatumAxis).help("The datum axis.").req(),
+ reference("plane", "Plane", C::DatumPlane).help("The datum plane the axis crosses.").req(),
+ ],
+ ),
+ ],
+ )
+ .help("How the point is defined.")
+ .req()
+ .def(r#"{"type": "coordinates"}"#),
+];
+pub const DATUM_DELETE: &[Field] = &[
+ reference("name", "Datum", C::Datum).req().help("The Datum to act on, by name."),
+ flag("cascade", "Delete its partitions").help("Also delete the partitions that cut by it; without it, a datum in use is refused."),
+];
pub const PARTITION: &[Field] = &[
NAME,
reference("datum", "Datum plane", C::DatumPlane).help("The plane that divides the bodies.").req(),
diff --git a/crates/engine/src/cmd/mod.rs b/crates/engine/src/cmd/mod.rs
index a240482..28a1def 100644
--- a/crates/engine/src/cmd/mod.rs
+++ b/crates/engine/src/cmd/mod.rs
@@ -13,6 +13,7 @@ mod geometry;
mod hex;
pub(crate) mod mesh;
+pub use datum::edit_params as datum_edit_params;
pub use mesh::analytic_surfaces;
mod mirror;
mod model;
@@ -41,6 +42,10 @@ pub static ALL: &[CommandSpec] = &[
geometry::IMPORT_MESH,
datum::DATUM_PLANE,
datum::DATUM_AXIS,
+ datum::DATUM_POINT,
+ datum::DATUM_EDIT,
+ datum::DATUM_AXIS_EDIT,
+ datum::DATUM_POINT_EDIT,
datum::DATUM_DELETE,
datum::PARTITION,
datum::PARTITION_DELETE,
diff --git a/crates/engine/src/requirement.rs b/crates/engine/src/requirement.rs
index 2be20ed..dc46ffd 100644
--- a/crates/engine/src/requirement.rs
+++ b/crates/engine/src/requirement.rs
@@ -24,10 +24,12 @@ pub enum Requirement {
Design,
/// Geometry to mesh: an open design or an imported surface.
Geometry,
- /// A datum plane or axis.
+ /// A datum plane, axis or point.
Datum,
/// A datum plane (what a partition cuts by).
DatumPlane,
+ DatumAxis,
+ DatumPoint,
/// A partition of the design.
Partition,
/// An edge seed.
@@ -74,6 +76,8 @@ impl Requirement {
Requirement::Geometry => s.design.is_some() || !s.surfaces.is_empty(),
Requirement::Datum => !m.datums().is_empty(),
Requirement::DatumPlane => m.datums().values().any(|d| d.plane().is_some()),
+ Requirement::DatumAxis => m.datums().values().any(|d| d.axis().is_some()),
+ Requirement::DatumPoint => m.datums().values().any(|d| d.point().is_some()),
Requirement::Partition => !m.partitions().is_empty(),
Requirement::Seed => !m.seeds().is_empty(),
Requirement::Nodes => !m.nodes().is_empty(),
@@ -110,8 +114,10 @@ impl Requirement {
match self {
Requirement::Design => "an open design",
Requirement::Geometry => "geometry (an open design or an imported surface)",
- Requirement::Datum => "a datum plane or axis",
+ Requirement::Datum => "a datum",
Requirement::DatumPlane => "a datum plane",
+ Requirement::DatumAxis => "a datum axis",
+ Requirement::DatumPoint => "a datum point",
Requirement::Partition => "a partition",
Requirement::Seed => "an edge seed",
Requirement::Nodes => "mesh nodes",
@@ -140,6 +146,8 @@ impl Requirement {
match self {
Requirement::Design | Requirement::Geometry => "geometry.open",
Requirement::Datum | Requirement::DatumPlane => "geometry.datum",
+ Requirement::DatumAxis => "geometry.datum.axis",
+ Requirement::DatumPoint => "geometry.datum.point",
Requirement::Partition => "geometry.partition",
Requirement::Seed => "mesh.seed.edge",
Requirement::Nodes => "mesh.node.add",
@@ -195,6 +203,8 @@ impl crate::schema::Collection {
C::Body => Requirement::Design,
C::Datum => Requirement::Datum,
C::DatumPlane => Requirement::DatumPlane,
+ C::DatumAxis => Requirement::DatumAxis,
+ C::DatumPoint => Requirement::DatumPoint,
C::Partition => Requirement::Partition,
}
}
@@ -333,6 +343,8 @@ mod tests {
C::Body,
C::Datum,
C::DatumPlane,
+ C::DatumAxis,
+ C::DatumPoint,
C::Partition,
];
let empty = Session::default();
diff --git a/crates/engine/src/schema.rs b/crates/engine/src/schema.rs
index e14582a..bc43888 100644
--- a/crates/engine/src/schema.rs
+++ b/crates/engine/src/schema.rs
@@ -124,10 +124,14 @@ pub enum Collection {
SolvedStep,
/// A body of the open design.
Body,
- /// A datum plane or axis.
+ /// A datum plane, axis or point.
Datum,
/// A datum plane.
DatumPlane,
+ /// A datum axis.
+ DatumAxis,
+ /// A datum point.
+ DatumPoint,
Partition,
}
@@ -151,6 +155,8 @@ impl Collection {
Collection::Body => "body",
Collection::Datum => "datum",
Collection::DatumPlane => "datum plane",
+ Collection::DatumAxis => "datum axis",
+ Collection::DatumPoint => "datum point",
Collection::Partition => "partition",
}
}
@@ -178,6 +184,8 @@ impl Session {
Collection::Body => Box::new(self.design.iter().flat_map(|d| d.bodies.iter().map(|b| b.name.as_str()))),
Collection::Datum => Box::new(m.datums().keys().map(String::as_str)),
Collection::DatumPlane => Box::new(m.datums().iter().filter(|(_, d)| d.plane().is_some()).map(|(n, _)| n.as_str())),
+ Collection::DatumAxis => Box::new(m.datums().iter().filter(|(_, d)| d.axis().is_some()).map(|(n, _)| n.as_str())),
+ Collection::DatumPoint => Box::new(m.datums().iter().filter(|(_, d)| d.point().is_some()).map(|(n, _)| n.as_str())),
Collection::Partition => Box::new(m.partitions().iter().map(|p| p.name.as_str())),
};
names.take(MAX_NAMES).map(str::to_string).collect()
diff --git a/docs/features.md b/docs/features.md
index 3f8b829..0a74288 100644
--- a/docs/features.md
+++ b/docs/features.md
@@ -6,7 +6,7 @@ Every entry is a toolbar button. **Ready** entries run their command; **coming s
shown greyed with the roadmap milestone that brings them (ROADMAP.md). Scripts, the command line,
the control channel and AI agents over MCP (docs/mcp.md) run the same commands.
-62 ready, 41 coming soon.
+64 ready, 41 coming soon.
## Geometry
@@ -17,8 +17,10 @@ the control channel and AI agents over MCP (docs/mcp.md) run the same commands.
| Inspect | Bodies — List the open design's bodies, volumes and named faces | ready | `geometry.bodies` |
| Inspect | Tessellate — Tessellate a body into a face-tagged boundary surface | ready | `geometry.tessellate` |
| Inspect | Check Surface — Weld, closed, manifold, orientation and self-intersection checks; feature edges | ready | `mesh.surface.check` |
-| Prepare | Datum Plane — Datum planes (principal plane and offset, three points, point and normal) and axes | ready | `geometry.datum`, `geometry.datum.axis`, `geometry.datum.delete` |
-| Prepare | Partition — Cut bodies into cells by a datum plane; the two faces of each cut are paired by name | ready | `geometry.partition`, `geometry.partition.delete` |
+| Prepare | Datum Plane — A datum plane: principal plane and offset, three points or datum points, point and normal, normal to an axis | ready | `geometry.datum`, (`geometry.datum.edit`), (`geometry.datum.delete`) |
+| Prepare | Datum Axis — A datum axis: principal axis, two points or datum points, point and direction | ready | `geometry.datum.axis`, (`geometry.datum.axis.edit`) |
+| Prepare | Datum Point — A datum point: coordinates, a mesh vertex, along an edge, a face's centre, an axis through a plane | ready | `geometry.datum.point`, (`geometry.datum.point.edit`) |
+| Prepare | Partition — Cut bodies into cells by a datum plane; the two faces of each cut are paired by name | ready | `geometry.partition`, (`geometry.partition.delete`) |
| Prepare | Midsurface — Extract midsurfaces of thin parts for shell meshes | coming soon (M8) | |
## Mesh