POC: solid_id as loft field

Fixes #4662

e2e/playwright/point-click.spec.ts

@@ -854,6 +854,67 @@ loftPointAndClickCases.forEach(({ shouldPreselect }) => {
   })
 })
 
+// TODO: merge with above test. Right now we're not able to delete a loft
+// right after creation via selection for some reason, so we go with a new instance
+test('Loft and offset plane deletion via selection', async ({
+  context,
+  page,
+  homePage,
+  scene,
+}) => {
+  const initialCode = `sketch001 = startSketchOn('XZ')
+  |> circle({ center = [0, 0], radius = 30 }, %)
+  plane001 = offsetPlane('XZ', 50)
+  sketch002 = startSketchOn(plane001)
+  |> circle({ center = [0, 0], radius = 20 }, %)
+loft001 = loft([sketch001, sketch002])
+`
+  await context.addInitScript((initialCode) => {
+    localStorage.setItem('persistCode', initialCode)
+  }, initialCode)
+  await page.setBodyDimensions({ width: 1000, height: 500 })
+  await homePage.goToModelingScene()
+
+  // One dumb hardcoded screen pixel value
+  const testPoint = { x: 575, y: 200 }
+  const [clickOnSketch1] = scene.makeMouseHelpers(testPoint.x, testPoint.y)
+  const [clickOnSketch2] = scene.makeMouseHelpers(testPoint.x, testPoint.y + 80)
+
+  await test.step(`Delete loft`, async () => {
+    // Check for loft
+    await scene.expectPixelColor([89, 89, 89], testPoint, 15)
+    await clickOnSketch1()
+    await expect(page.locator('.cm-activeLine')).toHaveText(`
+      |> circle({ center = [0, 0], radius = 30 }, %)
+    `)
+    await page.keyboard.press('Backspace')
+    // Check for sketch 1
+    await scene.expectPixelColor([254, 254, 254], testPoint, 15)
+  })
+
+  await test.step('Delete sketch002', async () => {
+    await page.waitForTimeout(1000)
+    await clickOnSketch2()
+    await expect(page.locator('.cm-activeLine')).toHaveText(`
+      |> circle({ center = [0, 0], radius = 20 }, %)
+    `)
+    await page.keyboard.press('Backspace')
+    // Check for plane001
+    await scene.expectPixelColor([228, 228, 228], testPoint, 15)
+  })
+
+  await test.step('Delete plane001', async () => {
+    await page.waitForTimeout(1000)
+    await clickOnSketch2()
+    await expect(page.locator('.cm-activeLine')).toHaveText(`
+      plane001 = offsetPlane('XZ', 50)
+    `)
+    await page.keyboard.press('Backspace')
+    // Check for sketch 1
+    await scene.expectPixelColor([254, 254, 254], testPoint, 15)
+  })
+})
+
 const shellPointAndClickCapCases = [
   { shouldPreselect: true },
   { shouldPreselect: false },
@@ -1030,4 +1091,12 @@ extrude001 = extrude(40, sketch001)
     })
     await scene.expectPixelColor([49, 49, 49], testPoint, 15)
   })
+
+  await test.step('Delete shell via feature tree selection', async () => {
+    await editor.closePane()
+    const operationButton = await toolbar.getFeatureTreeOperation('Shell', 0)
+    await operationButton.click({ button: 'left' })
+    await page.keyboard.press('Backspace')
+    await scene.expectPixelColor([99, 99, 99], testPoint, 15)
+  })
 })

src/lang/modifyAst.ts

@@ -1149,11 +1149,17 @@ export async function deleteFromSelection(
     ((selection?.artifact?.type === 'wall' ||
       selection?.artifact?.type === 'cap') &&
       varDec.node.init.type === 'PipeExpression') ||
-    selection.artifact?.type === 'sweep'
+    selection.artifact?.type === 'sweep' ||
+    selection.artifact?.type === 'plane' ||
+    !selection.artifact // aka expected to be a shell at this point
   ) {
     let extrudeNameToDelete = ''
     let pathToNode: PathToNode | null = null
-    if (selection.artifact?.type !== 'sweep') {
+    if (
+      selection.artifact &&
+      selection.artifact.type !== 'sweep' &&
+      selection.artifact.type !== 'plane'
+    ) {
       const varDecName = varDec.node.id.name
       traverse(astClone, {
         enter: (node, path) => {
@@ -1169,6 +1175,17 @@ export async function deleteFromSelection(
               pathToNode = path
               extrudeNameToDelete = dec.id.name
             }
+            if (
+              dec.init.type === 'CallExpression' &&
+              dec.init.callee.name === 'loft' &&
+              dec.init.arguments?.[0].type === 'ArrayExpression' &&
+              dec.init.arguments?.[0].elements.some(
+                (a) => a.type === 'Identifier' && a.name === varDecName
+              )
+            ) {
+              pathToNode = path
+              extrudeNameToDelete = dec.id.name
+            }
           }
         },
       })

src/lang/std/artifactGraph.ts

@@ -69,7 +69,7 @@ interface SegmentArtifactRich extends BaseArtifact {
 /** A Sweep is a more generic term for extrude, revolve, loft and sweep*/
 interface SweepArtifact extends BaseArtifact {
   type: 'sweep'
-  subType: 'extrusion' | 'revolve'
+  subType: 'extrusion' | 'revolve' | 'loft'
   pathId: string
   surfaceIds: Array<string>
   edgeIds: Array<string>
@@ -77,7 +77,7 @@ interface SweepArtifact extends BaseArtifact {
 }
 interface SweepArtifactRich extends BaseArtifact {
   type: 'sweep'
-  subType: 'extrusion' | 'revolve'
+  subType: 'extrusion' | 'revolve' | 'loft'
   path: PathArtifact
   surfaces: Array<WallArtifact | CapArtifact>
   edges: Array<SweepEdge>
@@ -393,6 +393,33 @@ export function getArtifactsToUpdate({
         artifact: { ...path, sweepId: id },
       })
     return returnArr
+  } else if (
+    cmd.type === 'loft' &&
+    response.type === 'modeling' &&
+    response.data.modeling_response.type === 'loft'
+  ) {
+    returnArr.push({
+      id,
+      artifact: {
+        type: 'sweep',
+        subType: 'loft',
+        id,
+        // TODO: make sure this is the right one to give here
+        pathId: cmd.section_ids[0],
+        surfaceIds: [],
+        edgeIds: [],
+        codeRef: { range, pathToNode },
+      },
+    })
+    for (const sectionId of cmd.section_ids) {
+      const path = getArtifact(sectionId)
+      if (path?.type === 'path')
+        returnArr.push({
+          id: sectionId,
+          artifact: { ...path, sweepId: id },
+        })
+    }
+    return returnArr
   } else if (
     cmd.type === 'solid3d_get_extrusion_face_info' &&
     response?.type === 'modeling' &&

src/wasm-lib/kcl/src/std/loft.rs

@@ -143,6 +143,8 @@ async fn inner_loft(
     }
 
     let id = exec_state.next_uuid();
+    let solid_id = exec_state.next_uuid();
+    // TODO: get engine team to add the solid_id field
     args.batch_modeling_cmd(
             id,
             ModelingCmd::from(mcmd::Loft {
@@ -151,10 +153,16 @@ async fn inner_loft(
                 bez_approximate_rational,
                 tolerance: LengthUnit(tolerance.unwrap_or(default_tolerance(&args.ctx.settings.units))),
                 v_degree,
+                solid_id,
             }),
         )
         .await?;
 
-    // Using the first sketch as the base curve, idk we might want to change this later.
+    // Take the sketch with the most paths, as its edges are spawning the loft faces
-    do_post_extrude(sketches[0].clone(), 0.0, exec_state, args).await
+    let mut desc_sorted_sketches = sketches.to_vec();
+    desc_sorted_sketches.sort_by(|s0, s1| s1.paths.len().cmp(&s0.paths.len()));
+    let mut sketch = desc_sorted_sketches[0].clone();
+    // Overwrite the sketch id with the loft id, so it gets picked up to get the face info in post_extrude
+    sketch.id = solid_id;
+    do_post_extrude(sketch, 0.0, exec_state, args).await
 }