feat(rebar): add 3D coupler modeling for P1/P2 (368) and P4/P5 (35) with separate summary table rows

src/view/rebar3d.ts

@@ -25,6 +25,8 @@ const COLOR = {
   shear: 0x6b3fa0,
   column: 0x0f5c66,
   tie: 0x6b3fa0,
+  couplerMain: 0x0b3f46,
+  couplerTie: 0x553088,
   footing: 0x0f5c66,
   footingBottom: 0x2e7d32,
   block: 0xa07a10,
@@ -213,6 +215,52 @@ export function buildRebar3D(m: PierModel): RebarScene {
     for (const z of col.p3) ring('P3', c.k, sc, base + mm(z), rt, NOMINAL_DIAMETER.H19);
     for (const z of col.p5) ring('P5', c.k, sc, base + mm(z), rt, NOMINAL_DIAMETER.H19);
     for (const z of col.p4) ring('P4', c.k, sc, base + mm(z), rt, NOMINAL_DIAMETER.H19);
+
+    // Main bar couplers (D32, L150 Ø60, 4단 × 46줄 × 2열 = 368개): P1 at col.couplerP1, P2 at col.couplerP2 (+150 mm)
+    const r1 = mm(col.r1);
+    const r2 = mm(col.r2);
+    for (let i = 0; i < COLUMN_P1.nDiv; i++) {
+      const th = (2 * Math.PI * i) / COLUMN_P1.nDiv;
+      const cosTh = Math.cos(th);
+      const sinTh = Math.sin(th);
+      // P1 couplers (184)
+      for (const z of col.couplerP1) {
+        const cx = sc + r1 * cosTh;
+        const cz = r1 * sinTh;
+        const cy = base + mm(z);
+        addBar('주철근 커플러', c.k, [cx, cy - 0.075, cz], [cx, cy + 0.075, cz], 60, COLOR.couplerMain);
+      }
+      // P2 couplers (184, shifted +150 mm)
+      for (const z of col.couplerP2) {
+        const cx = sc + r2 * cosTh;
+        const cz = r2 * sinTh;
+        const cy = base + mm(z);
+        addBar('주철근 커플러', c.k, [cx, cy - 0.075, cz], [cx, cy + 0.075, cz], 60, COLOR.couplerMain);
+      }
+    }
+
+    // Tie couplers (D19, L100 Ø40, 총 35개): P5 1개 (19개) · P4 2개 (16개)
+    col.p5.forEach((z, j) => {
+      const th = (2 * Math.PI * (j * 7 + 0.5)) / COLUMN_P1.nDiv;
+      const cx = sc + rt * Math.cos(th);
+      const cz = rt * Math.sin(th);
+      const cy = base + mm(z);
+      const dx = 0.05 * -Math.sin(th);
+      const dz = 0.05 * Math.cos(th);
+      addBar('띠철근 커플러', c.k, [cx - dx, cy, cz - dz], [cx + dx, cy, cz + dz], 40, COLOR.couplerTie);
+    });
+    col.p4.forEach((z) => {
+      const angles = [(2 * Math.PI * 0.5) / COLUMN_P1.nDiv, (2 * Math.PI * 0.5) / COLUMN_P1.nDiv + Math.PI];
+      angles.forEach((th) => {
+        const cx = sc + rt * Math.cos(th);
+        const cz = rt * Math.sin(th);
+        const cy = base + mm(z);
+        const dx = 0.05 * -Math.sin(th);
+        const dz = 0.05 * Math.cos(th);
+        addBar('띠철근 커플러', c.k, [cx - dx, cy, cz - dz], [cx + dx, cy, cz + dz], 40, COLOR.couplerTie);
+      });
+    });
+
     const hookP6 = mm(Math.round(hookLength('tie90', NOMINAL_DIAMETER.H16))); // 135 mm
     const dP6 = NOMINAL_DIAMETER.H16; // 15.9 mm
     const p6Angles = [0, 46.96, 90, 133.04];
@@ -373,10 +421,16 @@ export function buildRebar3D(m: PierModel): RebarScene {
     for (const [key, meshes] of byName) {
       for (const mesh of meshes) {
         const mat = mesh.material as THREE.MeshStandardMaterial;
-        const on = name === null || key === name;
+        const on =
+          name === null ||
+          key === name ||
+          (name === '커플러' && key.includes('커플러')) ||
+          (name === '주철근 커플러' && key === '주철근 커플러') ||
+          (name === '띠철근 커플러' && key === '띠철근 커플러');
         mat.transparent = !on;
         mat.opacity = on ? 1 : 0.18;
-        mat.emissive.setHex(name !== null && key === name ? 0x6b5a00 : 0x000000);
+        const match = name !== null && (key === name || (name === '커플러' && key.includes('커플러')));
+        mat.emissive.setHex(match ? 0x6b5a00 : 0x000000);
       }
     }
   };