81 lines
4.0 KiB
Rust
81 lines
4.0 KiB
Rust
//! STEP export regressions found by round-tripping the robustness designs: faces the writer
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//! merges must keep their whole surface, so the body reads back as the same solid.
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use serde_json::{Value, json};
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use solidcraft_engine::Session;
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use solidcraft_kernel::{measure, step_export, step_import};
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fn run(s: &mut Session, script: Value) {
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for c in script.as_array().into_iter().flatten() {
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let (id, p) = (c["command"].as_str().unwrap_or_default(), &c["params"]);
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if let Err(e) = s.execute(id, p) {
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panic!("{id} {p}: {e}");
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}
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}
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}
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/// The design's one body exports, and reads back closed with the same volume and area.
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fn round_trips(s: &Session) {
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let st = s.model.state();
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assert_eq!(st.bodies.len(), 1);
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let body = &st.bodies[0].body;
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let text = step_export(&[body], "test").unwrap_or_else(|e| panic!("export: {e}"));
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let imp = step_import(&text).unwrap_or_else(|e| panic!("import: {e}"));
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assert_eq!(imp.bodies.len(), 1, "{:?}", imp.warnings);
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assert!(imp.bodies[0].closed && imp.warnings.is_empty(), "{:?}", imp.warnings);
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let (a, b) = (measure(body).unwrap(), measure(&imp.bodies[0].body).unwrap());
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assert!((a.volume - b.volume).abs() < 1e-3 * a.volume, "volume {} -> {}", a.volume, b.volume);
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assert!((a.area - b.area).abs() < 1e-3 * a.area, "area {} -> {}", a.area, b.area);
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}
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/// Robustness seed 17, shrunk: a thin three-quarter tube shelled 1 mm with its bottom open. The
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/// export merged each wall's three quarter pieces into one face but kept the first piece's
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/// quarter sheet as its surface; the body read back closed, with no warning, 7% too small.
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#[test]
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fn shelled_thin_three_quarter_tube_keeps_its_volume() {
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let mut s = Session::default();
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run(
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&mut s,
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json!([
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{"command":"sketch.create","params":{"plane":"XZ"}},
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{"command":"sketch.rectangle.two_point","params":{"p0":[10.0,0],"p1":[12.5,27.5]}},
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{"command":"sketch.finish","params":{}},
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{"command":"solid.revolve","params":{"angle":"270 deg","axis":"Z"}},
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{"command":"solid.shell","params":{"faces":[[-7.182422893157272,7.182422893245109,0.0]],"thickness":1.0}}
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]),
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);
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round_trips(&s);
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}
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/// The same tube turned further: the merged wall leaves a gap of 60°, 30° or 10°. Its two straight
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/// end edges lie either side of the gap, so the mean direction of the face's points no longer
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/// points into the face, and a seam put opposite it falls inside the face. The seam belongs in the
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/// middle of the gap.
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#[test]
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fn shelled_thin_wide_tube_keeps_its_volume() {
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for turn in [300.0_f64, 330.0, 350.0] {
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let mid = (turn / 2.0).to_radians();
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let mut s = Session::default();
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run(
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&mut s,
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json!([
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{"command":"sketch.create","params":{"plane":"XZ"}},
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{"command":"sketch.rectangle.two_point","params":{"p0":[10.0,0],"p1":[12.5,27.5]}},
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{"command":"sketch.finish","params":{}},
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{"command":"solid.revolve","params":{"angle":format!("{turn} deg"),"axis":"Z"}},
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{"command":"solid.shell","params":{"faces":[[11.0 * mid.cos(), 11.0 * mid.sin(), 0.0]],"thickness":1.0}}
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]),
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);
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let st = s.model.state();
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assert_eq!(st.bodies.len(), 1, "{turn} deg");
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let body = &st.bodies[0].body;
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let text = step_export(&[body], "test").unwrap_or_else(|e| panic!("{turn} deg export: {e}"));
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let imp = step_import(&text).unwrap_or_else(|e| panic!("{turn} deg import: {e}"));
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assert_eq!(imp.bodies.len(), 1, "{turn} deg {:?}", imp.warnings);
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assert!(imp.bodies[0].closed && imp.warnings.is_empty(), "{turn} deg {:?}", imp.warnings);
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let (a, b) = (measure(body).unwrap(), measure(&imp.bodies[0].body).unwrap());
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assert!((a.volume - b.volume).abs() < 1e-3 * a.volume, "{turn} deg volume {} -> {}", a.volume, b.volume);
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assert!((a.area - b.area).abs() < 1e-3 * a.area, "{turn} deg area {} -> {}", a.area, b.area);
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}
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}
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