Reconstruct constant-section meshes as parametric solids

crates/ui-egui/tests/mesh_conversion.rs

@@ -0,0 +1,44 @@
+use serde_json::json;
+use solvecraft_engine::doc::{Document, FeatureKind, MeshData};
+use solvecraft_engine::geom::Vec3;
+use solvecraft_engine::{Sel, Session};
+use solvecraft_ui_egui::scenario::Harness;
+
+#[test]
+fn convert_mesh_uses_preselection_and_reopens_its_timeline_dialog() {
+    let body = solvecraft_engine::kernel::box_solid(Vec3::ZERO, Vec3::new(10., 20., 30.)).unwrap();
+    let mesh = body.tessellate(0.01).unwrap();
+    let mut doc = Document::default();
+    doc.add_feature(
+        FeatureKind::MeshImport {
+            file: "box.stl".into(),
+            meshes: vec![MeshData {
+                name: "Mesh".into(),
+                positions: mesh.positions.iter().flat_map(|p| [p.x, p.y, p.z]).collect(),
+                triangles: mesh.triangles.iter().flatten().copied().collect(),
+                color: None,
+            }],
+        },
+        None,
+    )
+    .unwrap();
+    let mut h = Harness::new();
+    h.app.session = Session::new(doc);
+    h.app.session.selection = vec![Sel::Body { name: "Mesh".into() }];
+    h.step(&json!({"start":"mesh.convert"})).unwrap();
+    let dialog = h.app.dialog.as_ref().unwrap();
+    assert_eq!(dialog.inputs[0].items, vec![Sel::Body { name: "Mesh".into() }]);
+    h.step(&json!({"widget":"OK"})).unwrap();
+    assert!(h.app.dialog.is_none(), "{:?}", h.app.status);
+    assert!(!h.app.session.model.state().body("Mesh").unwrap().body.is_mesh());
+    let feature = h.app.session.doc.features.last().unwrap().id;
+    let response = h.call("ui.editFeature", json!({"feature":feature}));
+    assert_eq!(response["ok"], true, "{response}");
+    let dialog = h.app.dialog.as_ref().unwrap();
+    assert!(
+        matches!(&dialog.kind,solvecraft_ui_egui::dialogs::Kind::Surface(solvecraft_ui_egui::dialogs_surface::Surf::ConvertMesh { tolerance }) if tolerance=="0.05 mm")
+    );
+    assert!(h.app.session.model.state().body("Mesh").unwrap().body.is_mesh());
+    h.step(&json!({"key":"Escape"})).unwrap();
+    assert!(!h.app.session.model.state().body("Mesh").unwrap().body.is_mesh());
+}