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OneCAD/apps/solidcraft-cli/src/recipe.rs
T
Lasse Lian 6df69e9def Thin Extrude: walls of a set thickness along sketch curves (#721) (#991)
Thin Extrude builds walls of a set thickness along sketch curves, open chains and closed loops, with the wall centred, inside, outside or on both sides at two thicknesses. Saved under format 20 (thin on an Extrude); an extrude without thin saves as before. Closes #721.
2026-10-14 11:46:16 -04:00

588 lines
31 KiB
Rust

//! Reference-test recipes (`tests/oracle/*/recipe.json`) → SolidCraft command scripts.
//!
//! A recipe lists features with sketch entities in sketch-local coordinates; point references
//! (`l1.end`) share points. Each feature becomes one or more commands.
use serde_json::{Value, json};
fn plane_param(pl: &Value) -> Value {
let r = pl.get("ref").and_then(Value::as_str).unwrap_or("");
let origin_zero = pl.get("origin").and_then(Value::as_array).is_none_or(|o| o.iter().all(|x| x.as_f64().unwrap_or(0.0).abs() < 1e-12));
let std = match r.to_ascii_uppercase().as_str() {
"XY" => Some(([1.0, 0.0, 0.0], [0.0, 1.0, 0.0])),
"XZ" => Some(([1.0, 0.0, 0.0], [0.0, 0.0, -1.0])),
"YZ" => Some(([0.0, 1.0, 0.0], [0.0, 0.0, 1.0])),
_ => None,
};
let axes_match = |k: &str, want: [f64; 3]| {
pl.get(k).and_then(Value::as_array).is_some_and(|a| a.iter().zip(want).all(|(x, w)| (x.as_f64().unwrap_or(f64::NAN) - w).abs() < 1e-9))
};
match std {
Some((x, y)) if origin_zero && axes_match("x_dir", x) && axes_match("y_dir", y) => json!(r.to_ascii_uppercase()),
_ => json!({"origin": pl.get("origin").cloned().unwrap_or(json!([0, 0, 0])), "x_dir": pl.get("x_dir"), "y_dir": pl.get("y_dir")}),
}
}
/// A point argument: the shared reference if any, else the coordinates.
fn parg(p: Option<&Value>) -> Value {
match p {
Some(v) => match (v.get("ref"), v.get("at")) {
(Some(Value::String(r)), _) => json!(r),
(_, Some(at)) => at.clone(),
_ => v.clone(),
},
None => Value::Null,
}
}
fn op(f: &Value) -> Value {
f.get("operation").cloned().unwrap_or(json!("new"))
}
fn sketch_cmds(f: &Value, out: &mut Vec<Value>) -> Result<(), String> {
let mut p = json!({"plane": plane_param(f.get("plane").unwrap_or(&Value::Null))});
if let Some(n) = f.get("name") {
p["name"] = n.clone();
}
out.push(json!({"command": "sketch.create", "params": p}));
for e in f.get("entities").and_then(Value::as_array).into_iter().flatten() {
let id = e.get("id").cloned().unwrap_or(Value::Null);
let construction = e.get("construction").cloned().unwrap_or(json!(false));
match e.get("type").and_then(Value::as_str) {
Some("line") => out.push(json!({"command": "sketch.line", "params": {"points": [parg(e.get("start")), parg(e.get("end"))], "ids": [id], "construction": construction}})),
Some("circle") => out.push(json!({"command": "sketch.circle.center", "params": {"center": parg(e.get("center")), "radius": e.get("radius"), "id": id, "construction": construction}})),
Some("arc_three_point") => out.push(json!({"command": "sketch.arc.three_point", "params": {"start": parg(e.get("start")), "end": parg(e.get("end")), "through": e.get("mid").or(e.get("through")), "id": id}})),
Some("arc_center_start_sweep") => out.push(json!({"command": "sketch.arc.center_point", "params": {"center": parg(e.get("center")), "start": parg(e.get("start")), "sweep": e.get("sweep_deg").or(e.get("sweep")), "id": id}})),
Some("arc") => {
if e.get("center").is_some() {
out.push(json!({"command": "sketch.arc.center_point", "params": {"center": parg(e.get("center")), "start": parg(e.get("start")), "end": parg(e.get("end")), "id": id}}))
} else {
out.push(json!({"command": "sketch.arc.three_point", "params": {"start": parg(e.get("start")), "end": parg(e.get("end")), "through": parg(e.get("through").or(e.get("mid"))), "id": id}}))
}
}
Some("point") => out.push(json!({"command": "sketch.point", "params": {"point": parg(e.get("at").map(|a| json!({"at": a})).as_ref().or(Some(e))), "id": id}})),
// A 3D helix fit: the sweep along it becomes a coil (see `helix_path`).
Some("fitted_spline") if e.get("fit_points").and_then(Value::as_array).is_some_and(|a| a.iter().any(|p| p.get(2).is_some())) => {}
Some(other) => return Err(format!("recipe: sketch entity type `{other}` is not supported yet")),
None => return Err("recipe: sketch entity without type".into()),
}
}
for c in f.get("constraints").and_then(Value::as_array).into_iter().flatten() {
out.push(constraint_cmd(c)?);
}
for d in f.get("dimensions").and_then(Value::as_array).into_iter().flatten() {
let mut p = json!({"entities": d.get("refs").or(d.get("entities")), "type": d.get("type"), "value": d.get("value")});
for k in ["orientation", "text_at"] {
if let Some(v) = d.get(k) {
p[k] = v.clone();
}
}
out.push(json!({"command": "sketch.dimension", "params": p}));
}
out.push(json!({"command": "sketch.finish", "params": {}}));
Ok(())
}
/// Extent parameters for the Extrude command.
fn extent(f: &Value, p: &mut Value) {
let e = f.get("extent").cloned().unwrap_or(Value::Null);
let ty = e.get("type").and_then(Value::as_str).unwrap_or("distance");
let dist = e.get("distance").cloned().or_else(|| f.get("distance").cloned()).unwrap_or(Value::Null);
match ty {
"symmetric" => {
let full = e.get("is_full_length").and_then(Value::as_bool).unwrap_or(false);
p["direction"] = json!("symmetric");
p["distance"] = if full { json!(format!("({}) / 2", expr_text(&dist))) } else { dist };
}
"two_sides" => {
p["distance"] = e.get("side1").cloned().unwrap_or(Value::Null);
p["distance2"] = e.get("side2_opposite").or(e.get("side2")).cloned().unwrap_or(Value::Null);
}
"through_all" => {
p["through_all"] = json!(true);
p["direction"] = e.get("direction").cloned().unwrap_or(json!("positive"));
}
_ => {
p["distance"] = dist;
p["direction"] = e.get("direction").cloned().unwrap_or(json!("positive"));
}
}
if let Some(t) = e.get("taper_deg") {
p["taper"] = t.clone();
}
}
fn expr_text(v: &Value) -> String {
match v {
Value::String(s) => s.clone(),
other => other.to_string(),
}
}
fn refs(c: &Value) -> Vec<Value> {
c.get("refs").and_then(Value::as_array).cloned().unwrap_or_default()
}
/// A recipe constraint `{type, refs}` → a constraint command.
fn constraint_cmd(c: &Value) -> Result<Value, String> {
let ty = c.get("type").and_then(Value::as_str).unwrap_or("").to_ascii_lowercase();
let r = refs(c);
let at = |i: usize| r.get(i).cloned().unwrap_or(Value::Null);
let is_point = |v: &Value| v.as_str().is_some_and(|s| s.contains('.') || s == "origin" || s.starts_with('p'));
let (cmd, p) = match ty.as_str() {
"horizontal" | "vertical" if r.len() >= 2 => ("sketch.constraint.horizontal_vertical", json!({"points": [at(0), at(1)], "mode": ty})),
"horizontal" | "vertical" => ("sketch.constraint.horizontal_vertical", json!({"line": at(0), "mode": ty})),
"horizontal_points" => ("sketch.constraint.horizontal_vertical", json!({"points": [at(0), at(1)], "mode": "horizontal"})),
"vertical_points" => ("sketch.constraint.horizontal_vertical", json!({"points": [at(0), at(1)], "mode": "vertical"})),
"coincident" | "point_on_curve" => {
// The point goes first.
if is_point(&at(0)) {
("sketch.constraint.coincident", json!({"a": at(0), "b": at(1)}))
} else {
("sketch.constraint.coincident", json!({"a": at(1), "b": at(0)}))
}
}
"midpoint" => {
if is_point(&at(0)) {
("sketch.constraint.midpoint", json!({"point": at(0), "line": at(1)}))
} else {
("sketch.constraint.midpoint", json!({"point": at(1), "line": at(0)}))
}
}
"symmetric" | "symmetry" => ("sketch.constraint.symmetry", json!({"a": at(0), "b": at(1), "line": at(2)})),
"fix" => ("sketch.constraint.fix", json!({"entity": at(0), "fixed": true})),
"tangent" => ("sketch.constraint.tangent", json!({"a": at(0), "b": at(1)})),
"equal" => ("sketch.constraint.equal", json!({"a": at(0), "b": at(1)})),
"parallel" => ("sketch.constraint.parallel", json!({"a": at(0), "b": at(1)})),
"perpendicular" => ("sketch.constraint.perpendicular", json!({"a": at(0), "b": at(1)})),
"concentric" => ("sketch.constraint.concentric", json!({"a": at(0), "b": at(1)})),
"collinear" => ("sketch.constraint.collinear", json!({"a": at(0), "b": at(1)})),
other => return Err(format!("recipe: constraint `{other}` is not supported yet")),
};
Ok(json!({"command": cmd, "params": p}))
}
/// The profiles a feature uses (`profiles` list or a single `profile`).
fn profiles_of(f: &Value) -> Value {
match (f.get("profiles"), f.get("profile")) {
(Some(p), _) => p.clone(),
(None, Some(p)) => json!([p]),
_ => json!("all"),
}
}
/// The sketch a feature uses (name), from its profiles.
fn profile_sketch(f: &Value) -> Value {
profiles_of(f)
.as_array()
.and_then(|a| a.first())
.and_then(|p| p.get("sketch"))
.cloned()
.or_else(|| f.get("sketch").cloned())
.unwrap_or(Value::Null)
}
fn sketch_entity<'a>(features: &'a [Value], sketch: &Value, id: &Value) -> Option<&'a Value> {
features
.iter()
.find(|x| x.get("op").and_then(Value::as_str) == Some("sketch") && x.get("name") == Some(sketch))?
.get("entities")?
.as_array()?
.iter()
.find(|e| e.get("id") == Some(id))
}
/// A sweep of a circle along a fitted 3D spline that is a helix about a Z-parallel axis:
/// (base, diameter, pitch, turns, start angle, clockwise, section size).
#[allow(clippy::type_complexity)]
fn helix_path(features: &[Value], f: &Value) -> Option<([f64; 3], f64, f64, f64, f64, bool, f64)> {
let path = f.get("path")?;
let curve = sketch_entity(features, path.get("sketch")?, path.get("curves")?.as_array()?.first()?)?;
if curve.get("type")?.as_str()? != "fitted_spline" {
return None;
}
let pts: Vec<[f64; 3]> = curve
.get("fit_points")?
.as_array()?
.iter()
.filter_map(|p| {
let a = p.as_array()?;
Some([a.first()?.as_f64()?, a.get(1)?.as_f64()?, a.get(2)?.as_f64()?])
})
.collect();
if pts.len() < 8 {
return None;
}
let n = pts.len() as f64;
let (cx, cy) = circle_fit(&pts)?;
let r: Vec<f64> = pts.iter().map(|p| (p[0] - cx).hypot(p[1] - cy)).collect();
let rm = r.iter().sum::<f64>() / n;
if rm <= 0.0 || r.iter().any(|x| (x - rm).abs() > 1e-3 * rm) {
return None;
}
// Unwrapped angle and height: both linear along a helix.
let mut total = 0.0;
let mut prev = (pts[0][1] - cy).atan2(pts[0][0] - cx);
let start = prev;
for p in pts.iter().skip(1) {
let a = (p[1] - cy).atan2(p[0] - cx);
let mut d = a - prev;
while d > std::f64::consts::PI {
d -= std::f64::consts::TAU;
}
while d < -std::f64::consts::PI {
d += std::f64::consts::TAU;
}
total += d;
prev = a;
}
let turns = total.abs() / std::f64::consts::TAU;
let rise = pts.last()?[2] - pts[0][2];
if turns < 1e-6 || rise.abs() < 1e-9 {
return None;
}
// The section: a circle in the profile sketch.
let prof = f.get("profile").or_else(|| f.get("profiles").and_then(|x| x.get(0)))?;
let loop0 = prof.get("loops")?.get(0)?.get("curves")?.get(0)?;
let circle = sketch_entity(features, prof.get("sketch")?, loop0)?;
let size = 2.0 * circle.get("radius")?.as_f64()?;
Some(([cx, cy, pts[0][2]], 2.0 * rm, rise.abs() / turns, turns, start, (total < 0.0) != (rise < 0.0), size))
}
/// Least-squares circle through the points' (x, y): x² + y² + D x + E y + F = 0 (Kåsa).
#[allow(clippy::needless_range_loop)]
fn circle_fit(pts: &[[f64; 3]]) -> Option<(f64, f64)> {
let mut m = [[0.0f64; 4]; 3];
for p in pts {
let row = [p[0], p[1], 1.0];
let rhs = -(p[0] * p[0] + p[1] * p[1]);
for i in 0..3 {
for j in 0..3 {
m[i][j] += row[i] * row[j];
}
m[i][3] += row[i] * rhs;
}
}
// Gauss-Jordan on the 3x4 normal equations.
for c in 0..3 {
let piv = (c..3).max_by(|a, b| m[*a][c].abs().total_cmp(&m[*b][c].abs()))?;
m.swap(c, piv);
if m[c][c].abs() < 1e-12 {
return None;
}
for r in 0..3 {
if r != c {
let f = m[r][c] / m[c][c];
for k in c..4 {
m[r][k] -= f * m[c][k];
}
}
}
}
let (d, e) = (m[0][3] / m[0][0], m[1][3] / m[1][1]);
Some((-d / 2.0, -e / 2.0))
}
pub fn to_script(recipe: &Value) -> Result<Value, String> {
let mut out: Vec<Value> = Vec::new();
for p in recipe.get("parameters").and_then(Value::as_array).into_iter().flatten() {
out.push(json!({"command": "parameters.change", "params": {"name": p.get("name"), "expression": p.get("expression").or(p.get("value")), "unit": p.get("unit").cloned().unwrap_or(json!("mm"))}}));
}
let features = recipe.get("features").and_then(Value::as_array).ok_or("recipe: missing `features`")?;
for f in features {
let name = f.get("name").cloned().unwrap_or(Value::Null);
let bodies = f.get("result_bodies").cloned().unwrap_or(json!([]));
match f.get("op").and_then(Value::as_str) {
Some("sketch") => sketch_cmds(f, &mut out)?,
Some("extrude") => {
let mut p = json!({"sketch": profile_sketch(f), "profiles": profiles_of(f), "operation": op(f), "name": name, "body_names": bodies});
// Thin: {sketch, curves, thickness, side?, thickness2?} instead of profiles.
if let (Some(thin), Some(params)) = (f.get("thin"), p.as_object_mut()) {
params.remove("profiles");
params.insert("thin".into(), json!(true));
params.insert("sketch".into(), thin.get("sketch").cloned().unwrap_or(Value::Null));
for key in ["curves", "thickness", "side", "thickness2"] {
if let Some(v) = thin.get(key) {
params.insert(key.into(), v.clone());
}
}
}
extent(f, &mut p);
out.push(json!({"command": "solid.extrude", "params": p}));
}
Some("combine") => out.push(json!({"command": "solid.combine", "params": {
"target": f.get("target_body").or(f.get("target")), "tools": f.get("tool_bodies").or(f.get("tools")),
"operation": op(f), "keep_tools": f.get("keep_tools").cloned().unwrap_or(json!(false)), "name": name}})),
Some("revolve") => {
let axis = match f.get("axis") {
Some(a) if a.get("dir").is_some() => json!({"origin": a.get("origin").cloned().unwrap_or(json!([0, 0, 0])), "dir": a.get("dir")}),
Some(a) => a.get("line").or(a.get("ref")).cloned().unwrap_or_else(|| a.clone()),
None => Value::Null,
};
out.push(json!({"command": "solid.revolve", "params": {
"sketch": profile_sketch(f), "profiles": profiles_of(f), "axis": axis,
"angle": f.get("angle").cloned().unwrap_or(json!("360 deg")), "operation": op(f), "name": name, "body_names": bodies}}));
}
Some("rectangular_pattern") => {
let d1 = f.get("direction1").cloned().unwrap_or(Value::Null);
let d2 = f.get("direction2").cloned().unwrap_or(Value::Null);
let mut p = json!({"features": feature_refs(f.get("features")), "dir1": d1.get("axis"), "count1": d1.get("count"), "spacing1": d1.get("spacing"), "name": name});
if !d2.is_null() {
p["dir2"] = d2.get("axis").cloned().unwrap_or(Value::Null);
p["count2"] = d2.get("count").cloned().unwrap_or(Value::Null);
p["spacing2"] = d2.get("spacing").cloned().unwrap_or(Value::Null);
}
out.push(json!({"command": "solid.pattern.rectangular", "params": p}));
}
Some("circular_pattern") => {
let axis = f.get("axis").map(|a| json!({"origin": a.get("origin").cloned().unwrap_or(json!([0, 0, 0])), "dir": a.get("dir")})).unwrap_or(Value::Null);
out.push(json!({"command": "solid.pattern.circular", "params": {"features": feature_refs(f.get("features")), "axis": axis, "count": f.get("count"), "angle": f.get("total_angle").cloned().unwrap_or(json!(360)), "name": name}}));
}
Some("sm_flange") => match f.get("type").and_then(Value::as_str) {
Some("edge") => {
let mut p = json!({"type": "edge", "edges": edge_points(f), "height": f.get("height"), "name": name});
if let Some(a) = f.get("angle") {
p["angle"] = a.clone();
}
if f.get("flip").and_then(Value::as_bool) == Some(true) {
p["flip"] = json!(true);
}
out.push(json!({"command": "sheet.flange", "params": p}));
}
Some("contour") => out.push(json!({"command": "sheet.flange", "params": {
"type": "contour", "sketch": f.get("profile_sketch"), "curves": f.get("profile_curves"), "distance": f.get("distance"), "name": name}})),
_ => out.push(json!({"command": "sheet.flange", "params": {
"type": "base", "sketch": profile_sketch(f), "profiles": profiles_of(f), "name": name, "body_names": bodies}})),
},
Some("sheet_metal_rule_edit") => {
let rule = f.get("rule").cloned().unwrap_or(json!("Steel (mm)"));
let mut p = json!({"name": rule});
if let Some(set) = f.get("set") {
for (from, to) in [("thickness", "thickness"), ("kFactor", "k_factor"), ("bendRadius", "bend_radius")] {
if let Some(v) = set.get(from) {
p[to] = v.clone();
}
}
}
// "thickness 3 mm (final state…)": the last step of a sequence.
if let Some(last) = f.get("sequence").and_then(Value::as_array).and_then(|a| a.last()).and_then(Value::as_str) {
let w: Vec<&str> = last.split_whitespace().collect();
if let (Some(&"thickness"), Some(v), Some(u)) = (w.first(), w.get(1), w.get(2)) {
p["thickness"] = json!(format!("{v} {u}"));
}
}
out.push(json!({"command": "sheet.manage_rules", "params": p}));
}
Some("sm_hem") => {
let e = f.get("edge").and_then(|e| e.get("point")).cloned().unwrap_or(Value::Null);
let mut p = json!({"edges": [e], "length": f.get("length"), "name": name});
if f.get("flipped").and_then(Value::as_bool) == Some(true) {
p["flip"] = json!(true);
}
out.push(json!({"command": "sheet.hem", "params": p}));
}
Some("sm_unfold") => out.push(json!({"command": "sheet.unfold", "params": {"name": name}})),
Some("sm_refold") => out.push(json!({"command": "sheet.refold", "params": {"name": name}})),
Some("path_pattern") => {
let path = f.get("path").cloned().unwrap_or(Value::Null);
let mut p = json!({"path_sketch": path.get("sketch"), "path": path.get("curves"), "count": f.get("count"), "name": name});
match f.get("spacing") {
Some(sp) => p["spacing"] = sp.clone(),
None => p["distance"] = f.get("distance").cloned().unwrap_or(Value::Null),
}
if f.get("pattern_of").and_then(Value::as_str) == Some("bodies") {
p["bodies"] = f.get("bodies").cloned().unwrap_or(Value::Null);
} else {
p["features"] = feature_refs(f.get("features"));
}
out.push(json!({"command": "solid.pattern.path", "params": p}));
}
Some("loft") => {
let sections: Vec<Value> = f
.get("sections")
.and_then(Value::as_array)
.into_iter()
.flatten()
.map(|sec| match sec.get("point") {
Some(pt) => json!({"sketch": sec.get("sketch"), "point": pt}),
None => json!({"sketch": sec.get("sketch"), "profiles": [sec]}),
})
.collect();
out.push(json!({"command": "solid.loft", "params": {"sections": sections, "operation": op(f), "name": name, "body_names": bodies}}));
}
Some("sweep") if helix_path(features, f).is_some() => {
// A swept circle along a fitted 3D helix: a coil (the true helix).
let Some((base, diameter, pitch, turns, start, cw, size)) = helix_path(features, f) else { continue };
out.push(json!({"command": "solid.coil", "params": {
"base": base, "diameter": diameter, "pitch": pitch, "revolutions": turns, "section_size": size,
"start_angle": format!("{start} rad"), "clockwise": cw, "operation": op(f), "name": name, "body_names": bodies}}));
}
Some("sweep") => {
let path = f.get("path").cloned().unwrap_or(Value::Null);
out.push(json!({"command": "solid.sweep", "params": {
"sketch": profile_sketch(f), "profiles": profiles_of(f), "path_sketch": path.get("sketch"), "path": path.get("curves"),
"operation": op(f), "name": name, "body_names": bodies}}));
}
Some("shell") => {
let faces: Vec<Value> = f.get("faces_removed").and_then(Value::as_array).into_iter().flatten().filter_map(|x| x.get("point").cloned()).collect();
out.push(json!({"command": "solid.shell", "params": {"faces": faces, "thickness": f.get("inside_thickness"), "name": name}}));
}
Some("draft") => {
let faces: Vec<Value> = f.get("faces").and_then(Value::as_array).into_iter().flatten().filter_map(|x| x.get("point").cloned()).collect();
let np = f.get("neutral_plane").cloned().unwrap_or(Value::Null);
let n = np.get("plane_normal_outward").or(np.get("normal_at_point_on_face")).cloned().unwrap_or(json!([0, 0, 1]));
let neutral = json!({"origin": np.get("point").or(np.get("centroid")).cloned().unwrap_or(json!([0, 0, 0])), "normal": n.clone()});
let mut angle = f.get("angle").and_then(Value::as_f64).unwrap_or(0.0);
if f.get("flipped").and_then(Value::as_bool).unwrap_or(false) {
angle = -angle;
}
out.push(json!({"command": "solid.draft", "params": {"faces": faces, "angle": angle, "neutral": neutral, "pull": n, "name": name}}));
}
Some("thread") => {
let face = f.get("face").and_then(|x| x.get("point")).cloned().unwrap_or(Value::Null);
let mut p = json!({"face": face, "designation": f.get("designation"), "name": name});
if f.get("full_length").and_then(Value::as_bool) == Some(false)
&& let Some(l) = f.get("length")
{
p["length"] = l.clone();
}
out.push(json!({"command": "solid.thread", "params": p}));
}
Some("hole") => {
let n = f.get("face").and_then(|fc| fc.get("plane_normal_outward").or(fc.get("normal_at_point_on_face"))).cloned();
let mut dir = n.and_then(|n| n.as_array().map(|a| a.iter().map(|x| -x.as_f64().unwrap_or(0.0)).collect::<Vec<f64>>()));
// On a cylinder the normal given is at the face's sample point: drill toward the axis.
let v3 = |v: Option<&Value>| -> Option<[f64; 3]> {
let a = v?.as_array()?;
Some([a.first()?.as_f64()?, a.get(1)?.as_f64()?, a.get(2)?.as_f64()?])
};
if let Some(fc) = f.get("face").filter(|fc| fc.get("type").and_then(Value::as_str) == Some("cylinder"))
&& let (Some(o), Some(ax), Some(p)) = (v3(fc.get("axis_origin")), v3(fc.get("axis")), v3(f.get("position")))
{
let d = [p[0] - o[0], p[1] - o[1], p[2] - o[2]];
let t = d[0] * ax[0] + d[1] * ax[1] + d[2] * ax[2];
let r = [d[0] - t * ax[0], d[1] - t * ax[1], d[2] - t * ax[2]];
let l = (r[0] * r[0] + r[1] * r[1] + r[2] * r[2]).sqrt();
if l > 1e-9 {
dir = Some(vec![-r[0] / l, -r[1] / l, -r[2] / l]);
}
}
let ty = f.get("hole_type").and_then(Value::as_str).unwrap_or("simple");
let mut p = json!({"position": f.get("position"), "diameter": f.get("diameter"), "type": ty, "name": name});
// "sketch HolePoints points p1..p6"
if let Some(src) = f.get("positions_from").and_then(Value::as_str) {
let w: Vec<&str> = src.split_whitespace().collect();
if let (Some(sk), Some(range)) = (w.iter().position(|x| *x == "sketch").and_then(|i| w.get(i + 1)), w.iter().position(|x| *x == "points").and_then(|i| w.get(i + 1))) {
let ids: Vec<String> = match range.split_once("..") {
Some((a, b)) => {
let pre: String = a.chars().take_while(|c| !c.is_ascii_digit()).collect();
let (lo, hi) = (a[pre.len()..].parse::<u32>().unwrap_or(1), b.trim_start_matches(pre.as_str()).parse::<u32>().unwrap_or(0));
(lo..=hi).map(|k| format!("{pre}{k}")).collect()
}
None => range.split(',').map(str::to_string).collect(),
};
p = json!({"sketch": sk, "points": ids, "diameter": f.get("diameter"), "type": ty, "name": name});
}
}
if let Some(d) = dir {
p["direction"] = json!(d);
}
if f.get("extent").and_then(Value::as_str) != Some("through_all") {
p["depth"] = f.get("depth").cloned().unwrap_or(Value::Null);
if let Some(t) = f.get("tip_angle") {
p["tip_angle"] = t.clone();
}
}
for (k, src) in [("cb_diameter", "counterbore_diameter"), ("cb_depth", "counterbore_depth"), ("cs_diameter", "countersink_diameter"), ("cs_angle", "countersink_angle")] {
if let Some(v) = f.get(src) {
p[k] = v.clone();
}
}
out.push(json!({"command": "solid.hole", "params": p}));
}
Some("construction_plane") => match f.get("method").and_then(Value::as_str) {
Some("offset") => out.push(json!({"command": "construct.plane.offset", "params": {"base": f.get("base"), "offset": f.get("offset"), "name": name}})),
_ => {
// Use the resulting plane as recorded.
let (o, n) = (f.get("result_origin").cloned().unwrap_or(json!([0, 0, 0])), f.get("result_normal").cloned().unwrap_or(Value::Null));
if n.is_null() {
return Err(format!("recipe: construction plane method {:?} without result_normal", f.get("method")));
}
out.push(json!({"command": "construct.plane.offset", "params": {"base": {"origin": o, "normal": n}, "offset": 0, "name": name}}));
}
},
Some("split_body") => out.push(json!({"command": "solid.split_body", "params": {"body": f.get("body"), "plane": f.get("tool"), "name": name}})),
Some("mirror") => {
let pl = f.get("plane").cloned().unwrap_or(Value::Null);
let plane = match pl.get("ref").and_then(Value::as_str) {
Some(r @ ("XY" | "XZ" | "YZ")) => json!(r),
_ => json!({"origin": pl.get("origin").cloned().unwrap_or(json!([0, 0, 0])), "normal": pl.get("normal")}),
};
let mut p = json!({"features": feature_refs(f.get("features")), "plane": plane, "name": name});
if f.get("mirror_of").and_then(Value::as_str) == Some("bodies") {
p = json!({"bodies": f.get("bodies"), "combine": f.get("combine").cloned().unwrap_or(json!(false)), "plane": plane, "name": name});
}
out.push(json!({"command": "solid.mirror", "params": p}));
}
Some("fillet") => {
let mut p = json!({"edges": edge_points(f), "radius": f.get("radius"), "name": name});
// Constant radius (the default), chord length, or a radius varying along each edge
// (`radius` at the end nearest `start`, `radius2` at the other, `mid` between,
// `smooth`), or a B-spline along each edge (`radius` its first control radius,
// `radii` the rest, `knots`); `fit` for a radius too large for the geometry.
match f.get("type").and_then(Value::as_str) {
Some("chord_length") => p["type"] = json!("chord"),
Some("variable_radius") => p["type"] = json!("variable"),
Some("spline_radius") => p["type"] = json!("spline"),
_ => {}
}
for key in ["radius2", "start", "mid", "smooth", "fit", "radii", "knots"] {
if let Some(v) = f.get(key) {
p[key] = v.clone();
}
}
out.push(json!({"command": "solid.fillet", "params": p}))
}
Some("chamfer") => {
out.push(json!({"command": "solid.chamfer", "params": {"edges": edge_points(f), "distance": f.get("distance"), "name": name}}))
}
Some(other) => return Err(format!("recipe: feature op `{other}` is not supported yet")),
None => return Err("recipe: feature without `op`".into()),
}
}
Ok(json!({"commands": out}))
}
fn edge_points(f: &Value) -> Value {
Value::Array(
f.get("edges")
.and_then(Value::as_array)
.into_iter()
.flatten()
.map(|e| e.get("point").or(e.get("mid")).cloned().unwrap_or_else(|| e.clone()))
.collect(),
)
}
/// A pattern's source features may carry an occurrence suffix ("Hole1 (1)"); the features are
/// the recipe's own names.
fn feature_refs(v: Option<&Value>) -> Value {
let list: Vec<Value> = v
.and_then(Value::as_array)
.into_iter()
.flatten()
.map(|x| match x.as_str() {
Some(s) => {
let t = s.trim();
let base = match t.rfind(" (") {
Some(i) if t.ends_with(')') && t[i + 2..t.len() - 1].chars().all(|c| c.is_ascii_digit()) => &t[..i],
_ => t,
};
json!(base)
}
None => x.clone(),
})
.collect();
json!(list)
}