From d191ae571e84088dae8b0899b29dd4342ea1bfb4 Mon Sep 17 00:00:00 2001
From: bherbruck <brennen.herbruck@gmail.com>
Date: Thu, 8 Oct 2026 18:43:55 +0000
Subject: [PATCH] Pending scenario: a root-active sketch on a face of a moved
 component projects the face where it is (today at the body's own
 coordinates); harness check linked_world_range

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL
---
 crates/ui-egui/src/scenario.rs                |  18 +++
 .../sketch_on_moved_component_face.json       | 112 ++++++++++++++++++
 2 files changed, 130 insertions(+)
 create mode 100644 crates/ui-egui/tests/scenarios/sketch_on_moved_component_face.json

diff --git a/crates/ui-egui/src/scenario.rs b/crates/ui-egui/src/scenario.rs
index f79ec2cb..1474f8b1 100644
--- a/crates/ui-egui/src/scenario.rs
+++ b/crates/ui-egui/src/scenario.rs
@@ -686,6 +686,24 @@ pub fn check(h: &mut Harness, e: &Value) -> Result<(), String> {
                 let got = m["bodies"][0]["volume_mm3"].as_f64().unwrap_or(f64::NAN);
                 approx(got, &v["volume"], &format!("{name} volume"))?;
             }
+            "linked_world_range" => {
+                // {"x"|"y"|"z": [min, max]}: where the active sketch's projected (linked) points lie
+                // in the world (±1e-3 mm).
+                let si = h.call("engine.execute", json!({"command": "sketch.inspect", "params": {}}))["result"].clone();
+                let pts: Vec<Value> = si["points"].as_array().into_iter().flatten().filter(|p| !p["link"].is_null()).cloned().collect();
+                if pts.is_empty() {
+                    return Err("the sketch has no projected points".into());
+                }
+                for (i, axis) in ["x", "y", "z"].iter().enumerate() {
+                    let Some(want) = v.get(*axis) else { continue };
+                    let xs: Vec<f64> = pts.iter().filter_map(|p| p["world"][i].as_f64()).collect();
+                    let (lo, hi) = xs.iter().fold((f64::INFINITY, f64::NEG_INFINITY), |(a, b), &x| (a.min(x), b.max(x)));
+                    let (wl, wh) = (want[0].as_f64().unwrap_or(f64::NAN), want[1].as_f64().unwrap_or(f64::NAN));
+                    if (lo - wl).abs() > 1e-3 || (hi - wh).abs() > 1e-3 {
+                        return Err(format!("projected points span {axis} {lo:.3}..{hi:.3}, want {wl}..{wh}"));
+                    }
+                }
+            }
             "sketch_world" => {
                 // {sketch, point, at: [x,y,z]}: where a sketch point is in the world (±1e-3 mm).
                 let si = h.call("engine.execute", json!({"command": "sketch.inspect", "params": {"sketch": v["sketch"]}}))["result"].clone();
diff --git a/crates/ui-egui/tests/scenarios/sketch_on_moved_component_face.json b/crates/ui-egui/tests/scenarios/sketch_on_moved_component_face.json
new file mode 100644
index 00000000..999f0c3e
--- /dev/null
+++ b/crates/ui-egui/tests/scenarios/sketch_on_moved_component_face.json
@@ -0,0 +1,112 @@
+[
+ {
+  "pending": "a root-active sketch on a face of a moved component lands in body-local coordinates (solvecraft-dialogs)"
+ },
+ {
+  "note": "A box in a new component, the component moved +100 in x, the root active: a sketch on the box's top face projects the face's edges where the face is (x 100-140), not at the body's own coordinates (x 0-40)."
+ },
+ {
+  "call": "engine.execute",
+  "params": {
+   "command": "FusionCreateNewComponentCommand",
+   "params": {}
+  }
+ },
+ {
+  "call": "engine.execute",
+  "params": {
+   "command": "PrimitiveBox",
+   "params": {
+    "length": 40,
+    "width": 30,
+    "height": 10,
+    "corner": [
+     0,
+     0,
+     0
+    ]
+   }
+  }
+ },
+ {
+  "call": "engine.execute",
+  "params": {
+   "command": "component.activate",
+   "params": {
+    "component": 0
+   }
+  }
+ },
+ {
+  "call": "engine.execute",
+  "params": {
+   "command": "occurrence.move",
+   "params": {
+    "occurrence": 2,
+    "translate": [
+     100,
+     0,
+     0
+    ]
+   }
+  }
+ },
+ {
+  "call": "ui.view",
+  "params": {
+   "view": "fit"
+  }
+ },
+ {
+  "expect": {
+   "bbox": {
+    "body": "Body1",
+    "min": [
+     100,
+     0,
+     0
+    ],
+    "max": [
+     140,
+     30,
+     10
+    ]
+   }
+  }
+ },
+ {
+  "start": "SketchCreate"
+ },
+ {
+  "click": {
+   "world": [
+    120,
+    15,
+    10
+   ]
+  }
+ },
+ {
+  "expect": {
+   "sketching": true
+  }
+ },
+ {
+  "expect": {
+   "linked_world_range": {
+    "x": [
+     100,
+     140
+    ],
+    "y": [
+     0,
+     30
+    ],
+    "z": [
+     10,
+     10
+    ]
+   }
+  }
+ }
+]