diff --git a/src/main.ts b/src/main.ts
index 1e29773..e7006f6 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -23,6 +23,7 @@ import { bearingPlanSvg, type BearingPlanOverlay, PAIR_CHIP_LABELS } from './vie
import { bearingSectionSvg, type BearingDrawingRef } from './view/bearing-section-svg';
import { solplateDetailSvg, type SolplateDrawingRef } from './view/solplate-svg';
import { blockRebarSectionSvg } from './view/block-rebar-svg';
+import { blockRebarPlanSvg } from './view/block-rebar-plan-svg';
import { BLOCK_REBAR_RANGES } from './core/rebar/block-check';
import { DEFAULT_BLOCK_REBAR, type BlockRebarSettings } from './core/rebar/bearing-block';
import { groundSectionSvg } from './view/ground-svg';
@@ -1048,8 +1049,22 @@ function renderBlockRebarSettings(box: HTMLDivElement, pier: Pier): void {
const n = pier.model.integratedBlocks.length;
wrap.appendChild(el('p', `적용 블럭: ${n > 0 ? `일체 ${n}쌍` : `분리 ${pier.model.blocks.length}개`} (전체)`, 'muted small'));
const fig = el('figure', undefined, 'ground-fig');
- fig.innerHTML = blockRebarSectionSvg(pier.model, Math.min(bearingPairIndex, Math.max(0, pairEccentricities(pier.model.blocks).length - 1)));
- fig.appendChild(el('figcaption', '단면 C–C · 교축 방향 · 선택한 쌍 · S2 점(상면), S1 선과 다리(⊓) · 치수 mm', 'muted small'));
+ const pairIdx = Math.min(bearingPairIndex, Math.max(0, pairEccentricities(pier.model.blocks).length - 1));
+ // 단면 C–C / 평면 (승인 2026-10-26): the two views of the same settings; the 평면 shows the legs as dots and the row numbers.
+ const viewRow = el('div', undefined, 'opts');
+ for (const [v, label] of [['section', '단면 C–C'], ['plan', '평면']] as const) {
+ const b = el('button', label, 'btn small');
+ b.type = 'button';
+ b.setAttribute('aria-pressed', String(bearingRebarView === v));
+ b.addEventListener('click', () => {
+ bearingRebarView = v;
+ renderAll();
+ });
+ viewRow.appendChild(b);
+ }
+ wrap.appendChild(viewRow);
+ fig.innerHTML = bearingRebarView === 'plan' ? blockRebarPlanSvg(pier.model, pairIdx) : blockRebarSectionSvg(pier.model, pairIdx);
+ fig.appendChild(el('figcaption', bearingRebarView === 'plan' ? '평면 · 선택한 쌍 · S2 선(교각축 방향), S1 선(교축 방향) · 다리는 점 · 번호는 표의 행 번호' : '단면 C–C · 교축 방향 · 선택한 쌍 · S2 점(상면), S1 선과 다리(⊓) · 치수 mm', 'muted small'));
wrap.appendChild(fig);
box.appendChild(wrap);
}
@@ -1589,6 +1604,8 @@ function renderBearingBasis(wrap: HTMLDivElement, pier: Pier): void {
/** 상세 보기 pair shown in the plan, and whether the drawing values are overlaid (screen state only, 승인 2026-10-26). */
let bearingPairIndex = 0;
let bearingOverlayOn = true;
+/** ③ 받침블럭 view: the C–C section or the plan (승인 2026-10-26). */
+let bearingRebarView: 'section' | 'plan' = 'section';
/**
* Drawing values of one bearing for the overlays (승인 2026-10-26): the imported drawing row where it has the value
diff --git a/src/view/block-rebar-plan-svg.ts b/src/view/block-rebar-plan-svg.ts
new file mode 100644
index 0000000..3dd7dc1
--- /dev/null
+++ b/src/view/block-rebar-plan-svg.ts
@@ -0,0 +1,76 @@
+import type { PierModel } from '../core/geometry';
+import { blockFramePoint } from '../core/geometry';
+import { barDepths, barsAcross, type BlockRebarSettings } from '../core/rebar/bearing-block';
+import { pairEccentricities } from '../core/bearing-layout';
+import { INTEGRATED_BLOCK } from '../core/integrated-block';
+
+/**
+ * 받침블럭 배근 · 평면 (승인 2026-10-26): the blocks seen from above for the selected pair. x = 교축 (n), y = 교각축 (s).
+ * S2 bars run along the 교각축 (lines spaced across the 교축 at S2), S1 bars run along the 교축 (spaced along the 교각축 at S1).
+ * Each bar's ends are dots (the legs). The bar sets carry the table row numbers only (S1, S2).
+ */
+export function blockRebarPlanSvg(m: PierModel, pairIndex = 0): string {
+ const s: BlockRebarSettings = m.blockRebar;
+ const depth = barDepths(s);
+ const pair = pairEccentricities(m.blocks)[pairIndex];
+ if (!pair) return '';
+ const f = m.blocks.find((b) => b.no === pair.frontNo && b.row === '전열')!;
+ const k = m.blocks.find((b) => b.no === pair.backNo && b.row === '후열')!;
+ const ib = m.integratedBlocks.find((x) => x.frontNo === pair.frontNo);
+ const sc = ib ? ib.s : (f.s + k.s) / 2;
+ const nc = ib ? ib.n : (f.n + k.n) / 2;
+ const X = (n: number) => (n - nc) * 1000;
+ const Y = (sv: number) => (sv - sc) * 1000;
+ const parts: string[] = [];
+
+ // One block: a = along the 교각축 (s), c = along the 교축 (n), both in metres from the block centre, turned by the row skew.
+ const drawBlock = (cs: number, cn: number, skew: number, wA: number, wC: number) => {
+ const P = (a: number, c: number): [number, number] => {
+ const [sv, nv] = blockFramePoint({ s: cs, n: cn, rowSkewDeg: skew }, a, c);
+ return [X(nv), Y(sv)];
+ };
+ // Outline
+ const corners = [P(-wA / 2, -wC / 2), P(wA / 2, -wC / 2), P(wA / 2, wC / 2), P(-wA / 2, wC / 2)];
+ parts.push(``);
+ // S2: lines along the 교각축 at offsets across the 교축.
+ {
+ const a2s = barsAcross(wC * 1000, s.spacingS2, s);
+ const half = (wA * 1000 - 2 * s.coverSide) / 2000;
+ for (let i = 0; i < a2s.count; i++) {
+ const c = (a2s.firstEnd + i * a2s.spacing) / 1000 - wC / 2;
+ const p1 = P(-half, c);
+ const p2 = P(half, c);
+ parts.push(``);
+ parts.push(``);
+ }
+ }
+ // S1: lines along the 교축 at offsets along the 교각축.
+ {
+ const a1s = barsAcross(wA * 1000, s.spacingS1, s);
+ const half = (wC * 1000 - 2 * s.coverSide) / 2000;
+ for (let i = 0; i < a1s.count; i++) {
+ const a = (a1s.firstEnd + i * a1s.spacing) / 1000 - wA / 2;
+ const p1 = P(a, -half);
+ const p2 = P(a, half);
+ parts.push(``);
+ parts.push(``);
+ }
+ }
+ return P;
+ };
+
+ if (ib) {
+ const P = drawBlock(ib.s, ib.n, ib.rowSkewDeg, INTEGRATED_BLOCK.depth / 1000, INTEGRATED_BLOCK.length / 1000);
+ // Row numbers: S2 and S1 once each, at the first bar's end.
+ const [sx, sy] = P(-0.6 + 0.1, -1.25 + 0.1);
+ parts.push(`S2`);
+ parts.push(`S1`);
+ parts.push(`${INTEGRATED_BLOCK.length}`);
+ } else {
+ for (const b of [f, k]) drawBlock(b.s, b.n, b.rowSkewDeg, 1.2, 1.2);
+ const [sx, sy] = [X(f.n) - 500, Y(f.s) - 500];
+ parts.push(`S2`);
+ parts.push(`S1`);
+ }
+ return ``;
+}
diff --git a/tests/block-rebar-plan-svg.test.ts b/tests/block-rebar-plan-svg.test.ts
new file mode 100644
index 0000000..0109a95
--- /dev/null
+++ b/tests/block-rebar-plan-svg.test.ts
@@ -0,0 +1,28 @@
+import { describe, expect, it } from 'vitest';
+import { buildPier } from '../src/core/geometry';
+import { blockRebarPlanSvg } from '../src/view/block-rebar-plan-svg';
+import { loadP1 } from './helpers';
+
+const count = (svg: string, re: RegExp) => (svg.match(re) ?? []).length;
+
+describe('받침블럭 배근 평면 (승인 2026-10-26)', () => {
+ it('a separate pair: 8 S2 and 8 S1 lines per block, each with two leg dots', () => {
+ const svg = blockRebarPlanSvg(buildPier(loadP1()), 0);
+ expect(count(svg, /stroke="#0F5C66" stroke-width="8"/g)).toBe(16);
+ expect(count(svg, /stroke="#B4531F" stroke-width="8"/g)).toBe(16);
+ expect(count(svg, / {
+ const svg = blockRebarPlanSvg(buildPier({ ...loadP1(), bearingLayout: '일체' }), 0);
+ expect(count(svg, /stroke="#0F5C66" stroke-width="8"/g)).toBe(19);
+ expect(count(svg, /stroke="#B4531F" stroke-width="8"/g)).toBe(8);
+ expect(count(svg, / {
+ const svg = blockRebarPlanSvg(buildPier(loadP1()), 0);
+ expect(svg).toContain('>S2<');
+ expect(svg).toContain('>S1<');
+ });
+});