diff --git a/B04_PreProcess/B04_PreProcess_Engine.py b/B04_PreProcess/B04_PreProcess_Engine.py
index 53f567821..6e18bfc88 100644
--- a/B04_PreProcess/B04_PreProcess_Engine.py
+++ b/B04_PreProcess/B04_PreProcess_Engine.py
@@ -526,9 +526,14 @@ def download_geodata(
             # 선정에서 빠진 zip은 쓰이지 않으므로 정리한다(다른 지역 잔재 포함).
             prune_sheets(sheet_store, sheet_grid)
 
-            # 확보된 도엽을 레이어별 병합 GeoJSON으로 산출 — 열쇠(도엽 번호 목록)가 같으면 스킵
+            from B04_PreProcess.B04_PreProcess_Engine_SheetParser import PARSER_VERSION
+
+            # 확보된 도엽을 레이어별 병합 GeoJSON으로 산출 — 열쇠(도엽 번호 목록 · 파서 판)가 같으면 스킵
             merge_key_path = processed_dir / "sheet_merge.key.json"
-            merge_key = {"sheets": sorted(str(item) for item in sheet_result["available"])}
+            merge_key = {
+                "sheets": sorted(str(item) for item in sheet_result["available"]),
+                "parser": PARSER_VERSION,
+            }
             if sheet_result["available"] and (
                 rebuild
                 or not any(processed_dir.glob("도엽_*.geojson"))
diff --git a/B04_PreProcess/B04_PreProcess_Engine_SheetParser.py b/B04_PreProcess/B04_PreProcess_Engine_SheetParser.py
index ff575eeeb..8d1ef96dd 100644
--- a/B04_PreProcess/B04_PreProcess_Engine_SheetParser.py
+++ b/B04_PreProcess/B04_PreProcess_Engine_SheetParser.py
@@ -37,6 +37,10 @@ SHEET_LAYERS: dict[str, tuple[str, str]] = {
 
 # 산출 파일 접두사 (기존 processed/의 국가 GIS geojson과 구분)
 _OUTPUT_PREFIX = "도엽"
+# 파서 판 번호 — 병합 캐시 열쇠에 넣음 · 읽는 법이 바뀌면 올려 옛 병합본을 다시 지음
+PARSER_VERSION = 2
+# .cpg 없는 도엽 dbf 의 글자 인코딩(국토지리정보원 배포본)
+DBF_FALLBACK_ENCODING = "cp949"
 
 
 def _read_layer_from_zip(
@@ -57,7 +61,9 @@ def _read_layer_from_zip(
         with tempfile.TemporaryDirectory() as td:
             for n in wanted:
                 (Path(td) / Path(n).name).write_bytes(zf.read(n))
-            gdf = gpd.read_file(Path(td) / f"{member_base}.shp")
+            has_cpg = any(Path(n).suffix.lower() == ".cpg" for n in wanted)
+            options = {} if has_cpg else {"encoding": DBF_FALLBACK_ENCODING}
+            gdf = gpd.read_file(Path(td) / f"{member_base}.shp", **options)
 
     if gdf.empty:
         return None
diff --git a/D03_PlanAnalysis/D03_PlanAnalysis_Draw.py b/D03_PlanAnalysis/D03_PlanAnalysis_Draw.py
new file mode 100644
index 000000000..d30968ecf
--- /dev/null
+++ b/D03_PlanAnalysis/D03_PlanAnalysis_Draw.py
@@ -0,0 +1,253 @@
+"""D 예정노선 수동 직선 그리기 셈 — [저장] 정본 쪽 (PLAN 562-1 · 요구 389 12 · 13).
+
+구간 길이 · 원지반 기울기 · 길이 고정 · 기울기 고정 · 둘 다(양각기) · 선 위 거리 ↔ 점 · 측점.
+높이는 인자 `height_at(x, y)`(nan = 지형 밖).
+
+⚠ 파이썬·TS 짝 — `logic/D03_PlanAnalysis_Draw.ts` 같은 이름(camel). 한쪽을 고치면 다른 쪽도 고치고
+거울 시험 `resources/tester/test_562_1_plan_draw.py`.
+"""
+
+from __future__ import annotations
+
+import math
+from collections.abc import Callable, Sequence
+
+Vertex = tuple[float, float]
+HeightAt = Callable[[float, float], float]
+
+# 기울기 고정 반직선 걸음(m) · 이분 횟수 · 양각기 원 표본 수 — 짝 TS 상수
+SLOPE_STEP_M = 1
+BISECT = 40
+COMPASS_SAMPLES = 360
+EPS = 1e-9
+
+
+def _finite(value: float) -> bool:
+    return math.isfinite(value)
+
+
+def segment_length(a: Sequence[float], b: Sequence[float]) -> float:
+    """수평 길이(m)."""
+    dx = b[0] - a[0]
+    dy = b[1] - a[1]
+    return math.sqrt(dx * dx + dy * dy)
+
+
+def ground_slope_pct(a: Sequence[float], b: Sequence[float], height_at: HeightAt) -> float | None:
+    """원지반 기울기(%) = (z끝 − z시작) / 수평 길이 × 100 · + 오르막 · None = 지형 밖 · 길이 0."""
+    length = segment_length(a, b)
+    if length < EPS:
+        return None
+    za = height_at(a[0], a[1])
+    zb = height_at(b[0], b[1])
+    if not _finite(za) or not _finite(zb):
+        return None
+    return ((zb - za) / length) * 100
+
+
+def fixed_length_point(
+    start: Sequence[float], cursor: Sequence[float], length_m: float
+) -> Vertex | None:
+    """길이 고정 — 마우스 방향으로 그 길이 점 · 마우스 = 시작이면 None."""
+    d = segment_length(start, cursor)
+    if d < EPS:
+        return None
+    return (
+        start[0] + ((cursor[0] - start[0]) / d) * length_m,
+        start[1] + ((cursor[1] - start[1]) / d) * length_m,
+    )
+
+
+def fixed_slope_point(
+    start: Sequence[float],
+    cursor: Sequence[float],
+    slope_pct: float,
+    height_at: HeightAt,
+    max_m: float = 1000,
+) -> Vertex | None:
+    """기울기 고정 — 마우스 방향 반직선 위 |기울기| 가 목표가 되는 첫 자리(1 m 걸음 · 이분) ·
+    `max_m` 안에 없거나 지형 밖에 닿으면 None."""
+    d = segment_length(start, cursor)
+    z0 = height_at(start[0], start[1])
+    if d < EPS or not _finite(z0):
+        return None
+    ux = (cursor[0] - start[0]) / d
+    uy = (cursor[1] - start[1]) / d
+    grade = abs(slope_pct) / 100
+
+    def at(t: float) -> Vertex:
+        return (start[0] + ux * t, start[1] + uy * t)
+
+    def f(t: float) -> float:
+        p = at(t)
+        return abs(height_at(p[0], p[1]) - z0) - grade * t
+
+    lo = 0.0
+    flo = math.nan
+    i = 1
+    while i * SLOPE_STEP_M <= max_m:
+        t = i * SLOPE_STEP_M
+        ft = f(t)
+        if not _finite(ft):
+            return None
+        if ft == 0:
+            return at(t)
+        if i > 1 and (flo < 0) != (ft < 0):
+            hi = t
+            for _ in range(BISECT):
+                mid = (lo + hi) / 2
+                fm = f(mid)
+                if not _finite(fm):
+                    return None
+                if (fm < 0) == (flo < 0):
+                    lo = mid
+                    flo = fm
+                else:
+                    hi = mid
+            return at((lo + hi) / 2)
+        lo = t
+        flo = ft
+        i += 1
+    return None
+
+
+def compass_candidates(
+    start: Sequence[float], length_m: float, slope_pct: float, height_at: HeightAt
+) -> list[Vertex]:
+    """둘 다(양각기) — 반지름 `length_m` 원 위에서 |기울기| = 목표인 후보들
+    (방위 표본 · 이분 · 동쪽부터 반시계)."""
+    z0 = height_at(start[0], start[1])
+    if not length_m > EPS or not _finite(z0):
+        return []
+    rise = (abs(slope_pct) / 100) * length_m
+    step = (2 * math.pi) / COMPASS_SAMPLES
+
+    def at(angle: float) -> Vertex:
+        return (start[0] + math.cos(angle) * length_m, start[1] + math.sin(angle) * length_m)
+
+    def h(angle: float) -> float:
+        p = at(angle)
+        return abs(height_at(p[0], p[1]) - z0) - rise
+
+    values = [h(k * step) for k in range(COMPASS_SAMPLES)]
+    out: list[Vertex] = []
+    for k in range(COMPASS_SAMPLES):
+        hk = values[k]
+        hn = values[(k + 1) % COMPASS_SAMPLES]
+        if not _finite(hk) or not _finite(hn):
+            continue
+        if hk == 0:
+            out.append(at(k * step))
+            continue
+        if hn == 0 or (hk < 0) == (hn < 0):
+            continue
+        lo = k * step
+        hi = lo + step
+        flo = hk
+        ok = True
+        for _ in range(BISECT):
+            mid = (lo + hi) / 2
+            fm = h(mid)
+            if not _finite(fm):
+                ok = False
+                break
+            if (fm < 0) == (flo < 0):
+                lo = mid
+                flo = fm
+            else:
+                hi = mid
+        if ok:
+            out.append(at((lo + hi) / 2))
+    return out
+
+
+def compass_point(
+    start: Sequence[float],
+    cursor: Sequence[float],
+    length_m: float,
+    slope_pct: float,
+    height_at: HeightAt,
+) -> Vertex | None:
+    """둘 다 — 커서에 가장 가까운 양각기 후보 · 없으면 None."""
+    best: Vertex | None = None
+    best_d = math.inf
+    for p in compass_candidates(start, length_m, slope_pct, height_at):
+        d = segment_length(p, cursor)
+        if d < best_d:
+            best = p
+            best_d = d
+    return best
+
+
+def line_length(line: Sequence[Sequence[float]]) -> float:
+    """선 길이(m) — 앞에서부터 더함."""
+    total = 0.0
+    for i in range(1, len(line)):
+        total += segment_length(line[i - 1], line[i])
+    return total
+
+
+def point_at_distance(line: Sequence[Sequence[float]], m: float) -> Vertex:
+    """선 위 거리 → 점(0 · 끝 밖은 끝에서 멈춤) · 선 점 하나 이상."""
+    if m <= 0:
+        return (line[0][0], line[0][1])
+    acc = 0.0
+    for i in range(1, len(line)):
+        a = line[i - 1]
+        b = line[i]
+        seg = segment_length(a, b)
+        if seg > 0 and acc + seg >= m:
+            t = (m - acc) / seg
+            return (a[0] + (b[0] - a[0]) * t, a[1] + (b[1] - a[1]) * t)
+        acc += seg
+    return (line[-1][0], line[-1][1])
+
+
+def distance_along(line: Sequence[Sequence[float]], point: Sequence[float]) -> float:
+    """점 → 선 위 거리(m) — 가장 가까운 선 위 자리(같으면 앞 구간)."""
+    best = 0.0
+    best_d = math.inf
+    acc = 0.0
+    for i in range(1, len(line)):
+        a = line[i - 1]
+        b = line[i]
+        seg = segment_length(a, b)
+        t = 0.0
+        if seg > 0:
+            t = ((point[0] - a[0]) * (b[0] - a[0]) + (point[1] - a[1]) * (b[1] - a[1])) / (
+                seg * seg
+            )
+            t = min(1.0, max(0.0, t))
+        p = (a[0] + (b[0] - a[0]) * t, a[1] + (b[1] - a[1]) * t)
+        d = segment_length(p, point)
+        if d < best_d:
+            best_d = d
+            best = acc + seg * t
+        acc += seg
+    return best
+
+
+def slice_line(line: Sequence[Sequence[float]], from_m: float, to_m: float) -> list[Vertex]:
+    """선 조각 — `from_m`~`to_m` 사이(끝점 + 그 사이 꺾임점)."""
+    lo = min(from_m, to_m)
+    hi = max(from_m, to_m)
+    out = [point_at_distance(line, lo)]
+    acc = 0.0
+    for i in range(1, len(line) - 1):
+        acc += segment_length(line[i - 1], line[i])
+        if lo + EPS < acc < hi - EPS:
+            out.append((line[i][0], line[i][1]))
+    out.append(point_at_distance(line, hi))
+    return out
+
+
+def station_chainages(length_m: float, interval_m: float = 20) -> list[float]:
+    """측점 누가 — No.0(0 m) · 간격 배수 · 끝(선마다 0 부터)."""
+    out: list[float] = [0]
+    k = 1
+    while k * interval_m < length_m - 1e-6:
+        out.append(k * interval_m)
+        k += 1
+    if length_m > 1e-6:
+        out.append(length_m)
+    return out
diff --git a/D03_PlanAnalysis/D03_PlanAnalysis_Terrain.py b/D03_PlanAnalysis/D03_PlanAnalysis_Terrain.py
index 7d3be6c57..d50044880 100644
--- a/D03_PlanAnalysis/D03_PlanAnalysis_Terrain.py
+++ b/D03_PlanAnalysis/D03_PlanAnalysis_Terrain.py
@@ -26,7 +26,7 @@ from B04_PreProcess.B04_PreProcess_Engine_MapSheet import (
     sheet5k_to_bounds,
     sheets_for_points,
 )
-from B04_PreProcess.B04_PreProcess_Engine_SheetParser import parse_and_merge_sheets
+from B04_PreProcess.B04_PreProcess_Engine_SheetParser import PARSER_VERSION, parse_and_merge_sheets
 from B04_PreProcess.B04_PreProcess_Engine_SheetStore import (
     ensure_sheets,
     get_project_map_sheets_dir,
@@ -114,7 +114,7 @@ def _merge_sheets(processed: Path, store: Path, available: list[str]) -> list[st
     key_path = processed / "sheet_merge.key.json"
     old = (_read_json(key_path) or {}).get("sheets") or []
     sheets = sorted({*available, *(s for s in old if get_sheet_path(store, s) is not None)})
-    key = {"sheets": sheets}
+    key = {"sheets": sheets, "parser": PARSER_VERSION}
     if sheets and (_read_json(key_path) != key or not any(processed.glob("도엽_*.geojson"))):
         parse_and_merge_sheets(store, sheets, processed)
         atomic_write_json(key_path, key)
diff --git a/D03_PlanAnalysis/logic/D03_PlanAnalysis_Draw.ts b/D03_PlanAnalysis/logic/D03_PlanAnalysis_Draw.ts
new file mode 100644
index 000000000..daa3a7fcd
--- /dev/null
+++ b/D03_PlanAnalysis/logic/D03_PlanAnalysis_Draw.ts
@@ -0,0 +1,236 @@
+/* =============================================================================
+ * D03_PlanAnalysis_Draw.ts
+ * D 예정노선 수동 직선 그리기 셈(PLAN 562-1 · 요구 389 12 · 13) — 구간 길이 · 원지반 기울기 · 길이 고정 ·
+ *   기울기 고정 · 둘 다(양각기) · 선 위 거리 ↔ 점 · 측점. 높이는 인자 `heightAt(x, y)`(NaN = 지형 밖).
+ *   DOM · fetch · sessionStorage 없음.
+ *
+ * ⚠ 파이썬·TS 짝 — `D03_PlanAnalysis_Draw.py` 같은 이름(snake). 한쪽을 고치면 다른 쪽도 고치고 거울 시험
+ *   `resources/tester/test_562_1_plan_draw.py`. 화면은 그리는 즉시 이 짝으로 · [저장]은 서버가 다시 셈.
+ * ========================================================================== */
+
+export type Vertex = [number, number];
+export type HeightAt = (x: number, y: number) => number;
+
+/** 기울기 고정 반직선 걸음(m) · 이분 횟수 · 양각기 원 표본 수. */
+const SLOPE_STEP_M = 1;
+const BISECT = 40;
+const COMPASS_SAMPLES = 360;
+const EPS = 1e-9;
+
+/** 수평 길이(m). */
+export function segmentLength(a: Vertex, b: Vertex): number {
+  const dx = b[0] - a[0];
+  const dy = b[1] - a[1];
+  return Math.sqrt(dx * dx + dy * dy);
+}
+
+/** 원지반 기울기(%) = (z끝 − z시작) / 수평 길이 × 100 · + 오르막 · null = 지형 밖 · 길이 0. */
+export function groundSlopePct(a: Vertex, b: Vertex, heightAt: HeightAt): number | null {
+  const length = segmentLength(a, b);
+  if (length < EPS) return null;
+  const za = heightAt(a[0], a[1]);
+  const zb = heightAt(b[0], b[1]);
+  if (!Number.isFinite(za) || !Number.isFinite(zb)) return null;
+  return ((zb - za) / length) * 100;
+}
+
+/** 길이 고정 — 마우스 방향으로 그 길이 점 · 마우스 = 시작이면 null. */
+export function fixedLengthPoint(from: Vertex, cursor: Vertex, lengthM: number): Vertex | null {
+  const d = segmentLength(from, cursor);
+  if (d < EPS) return null;
+  return [
+    from[0] + ((cursor[0] - from[0]) / d) * lengthM,
+    from[1] + ((cursor[1] - from[1]) / d) * lengthM,
+  ];
+}
+
+/** 기울기 고정 — 마우스 방향 반직선 위 |기울기| 가 목표가 되는 첫 자리(1 m 걸음 · 이분) ·
+ *  `maxM` 안에 없거나 지형 밖에 닿으면 null. */
+export function fixedSlopePoint(
+  from: Vertex,
+  cursor: Vertex,
+  slopePct: number,
+  heightAt: HeightAt,
+  maxM: number = 1000,
+): Vertex | null {
+  const d = segmentLength(from, cursor);
+  const z0 = heightAt(from[0], from[1]);
+  if (d < EPS || !Number.isFinite(z0)) return null;
+  const ux = (cursor[0] - from[0]) / d;
+  const uy = (cursor[1] - from[1]) / d;
+  const grade = Math.abs(slopePct) / 100;
+  const at = (t: number): Vertex => [from[0] + ux * t, from[1] + uy * t];
+  const f = (t: number): number => {
+    const p = at(t);
+    return Math.abs(heightAt(p[0], p[1]) - z0) - grade * t;
+  };
+  let lo = 0;
+  let flo = NaN;
+  for (let i = 1; i * SLOPE_STEP_M <= maxM; i += 1) {
+    const t = i * SLOPE_STEP_M;
+    const ft = f(t);
+    if (!Number.isFinite(ft)) return null;
+    if (ft === 0) return at(t);
+    if (i > 1 && flo < 0 !== ft < 0) {
+      let hi = t;
+      for (let k = 0; k < BISECT; k += 1) {
+        const mid = (lo + hi) / 2;
+        const fm = f(mid);
+        if (!Number.isFinite(fm)) return null;
+        if (fm < 0 === flo < 0) {
+          lo = mid;
+          flo = fm;
+        } else hi = mid;
+      }
+      return at((lo + hi) / 2);
+    }
+    lo = t;
+    flo = ft;
+  }
+  return null;
+}
+
+/** 둘 다(양각기) — 반지름 `lengthM` 원 위에서 |기울기| = 목표인 후보들(방위 표본 · 이분 · 동쪽부터
+ *  반시계). */
+export function compassCandidates(
+  from: Vertex,
+  lengthM: number,
+  slopePct: number,
+  heightAt: HeightAt,
+): Vertex[] {
+  const z0 = heightAt(from[0], from[1]);
+  if (!(lengthM > EPS) || !Number.isFinite(z0)) return [];
+  const rise = (Math.abs(slopePct) / 100) * lengthM;
+  const step = (2 * Math.PI) / COMPASS_SAMPLES;
+  const at = (angle: number): Vertex => [
+    from[0] + Math.cos(angle) * lengthM,
+    from[1] + Math.sin(angle) * lengthM,
+  ];
+  const h = (angle: number): number => {
+    const p = at(angle);
+    return Math.abs(heightAt(p[0], p[1]) - z0) - rise;
+  };
+  const values: number[] = [];
+  for (let k = 0; k < COMPASS_SAMPLES; k += 1) values.push(h(k * step));
+  const out: Vertex[] = [];
+  for (let k = 0; k < COMPASS_SAMPLES; k += 1) {
+    const hk = values[k];
+    const hn = values[(k + 1) % COMPASS_SAMPLES];
+    if (!Number.isFinite(hk) || !Number.isFinite(hn)) continue;
+    if (hk === 0) {
+      out.push(at(k * step));
+      continue;
+    }
+    if (hn === 0 || hk < 0 === hn < 0) continue;
+    let lo = k * step;
+    let hi = lo + step;
+    let flo = hk;
+    let ok = true;
+    for (let i = 0; i < BISECT; i += 1) {
+      const mid = (lo + hi) / 2;
+      const fm = h(mid);
+      if (!Number.isFinite(fm)) {
+        ok = false;
+        break;
+      }
+      if (fm < 0 === flo < 0) {
+        lo = mid;
+        flo = fm;
+      } else hi = mid;
+    }
+    if (ok) out.push(at((lo + hi) / 2));
+  }
+  return out;
+}
+
+/** 둘 다 — 커서에 가장 가까운 양각기 후보 · 없으면 null. */
+export function compassPoint(
+  from: Vertex,
+  cursor: Vertex,
+  lengthM: number,
+  slopePct: number,
+  heightAt: HeightAt,
+): Vertex | null {
+  let best: Vertex | null = null;
+  let bestD = Infinity;
+  for (const p of compassCandidates(from, lengthM, slopePct, heightAt)) {
+    const d = segmentLength(p, cursor);
+    if (d < bestD) {
+      best = p;
+      bestD = d;
+    }
+  }
+  return best;
+}
+
+/** 선 길이(m) — 앞에서부터 더함. */
+export function lineLength(line: ReadonlyArray<Vertex>): number {
+  let total = 0;
+  for (let i = 1; i < line.length; i += 1) total += segmentLength(line[i - 1], line[i]);
+  return total;
+}
+
+/** 선 위 거리 → 점(0 · 끝 밖은 끝에서 멈춤) · 선 점 하나 이상. */
+export function pointAtDistance(line: ReadonlyArray<Vertex>, m: number): Vertex {
+  if (m <= 0) return [line[0][0], line[0][1]];
+  let acc = 0;
+  for (let i = 1; i < line.length; i += 1) {
+    const a = line[i - 1];
+    const b = line[i];
+    const seg = segmentLength(a, b);
+    if (seg > 0 && acc + seg >= m) {
+      const t = (m - acc) / seg;
+      return [a[0] + (b[0] - a[0]) * t, a[1] + (b[1] - a[1]) * t];
+    }
+    acc += seg;
+  }
+  const last = line[line.length - 1];
+  return [last[0], last[1]];
+}
+
+/** 점 → 선 위 거리(m) — 가장 가까운 선 위 자리(같으면 앞 구간). */
+export function distanceAlong(line: ReadonlyArray<Vertex>, point: Vertex): number {
+  let best = 0;
+  let bestD = Infinity;
+  let acc = 0;
+  for (let i = 1; i < line.length; i += 1) {
+    const a = line[i - 1];
+    const b = line[i];
+    const seg = segmentLength(a, b);
+    let t = 0;
+    if (seg > 0) {
+      t = ((point[0] - a[0]) * (b[0] - a[0]) + (point[1] - a[1]) * (b[1] - a[1])) / (seg * seg);
+      t = Math.min(1, Math.max(0, t));
+    }
+    const p: Vertex = [a[0] + (b[0] - a[0]) * t, a[1] + (b[1] - a[1]) * t];
+    const d = segmentLength(p, point);
+    if (d < bestD) {
+      bestD = d;
+      best = acc + seg * t;
+    }
+    acc += seg;
+  }
+  return best;
+}
+
+/** 선 조각 — `fromM`~`toM` 사이(끝점 + 그 사이 꺾임점). */
+export function sliceLine(line: ReadonlyArray<Vertex>, fromM: number, toM: number): Vertex[] {
+  const lo = Math.min(fromM, toM);
+  const hi = Math.max(fromM, toM);
+  const out: Vertex[] = [pointAtDistance(line, lo)];
+  let acc = 0;
+  for (let i = 1; i < line.length - 1; i += 1) {
+    acc += segmentLength(line[i - 1], line[i]);
+    if (acc > lo + EPS && acc < hi - EPS) out.push([line[i][0], line[i][1]]);
+  }
+  out.push(pointAtDistance(line, hi));
+  return out;
+}
+
+/** 측점 누가 — No.0(0 m) · 간격 배수 · 끝(선마다 0 부터). */
+export function stationChainages(lengthM: number, intervalM: number = 20): number[] {
+  const out = [0];
+  for (let k = 1; k * intervalM < lengthM - 1e-6; k += 1) out.push(k * intervalM);
+  if (lengthM > 1e-6) out.push(lengthM);
+  return out;
+}
diff --git a/E03_StabSection/E03_StabSection_UI_List.ts b/E03_StabSection/E03_StabSection_UI_List.ts
index 9cfcf82ed..db51f4c4d 100644
--- a/E03_StabSection/E03_StabSection_UI_List.ts
+++ b/E03_StabSection/E03_StabSection_UI_List.ts
@@ -9,6 +9,7 @@ import { createIconButton } from "@ui/ui_template_button";
 import { el } from "@ui/ui_template_elements";
 import { createEmpty } from "@ui/ui_template_empty";
 import { t, type LocaleKey } from "@ui/ui_template_locale";
+import { stationLabel } from "../common_util/common_util_station";
 import { e03Table } from "./E03_StabSection_UI_Table";
 import {
   listRows,
@@ -29,7 +30,9 @@ export interface ListDraw {
   sort: SortMode;
   ngOnly: boolean;
   active: string | null;
-  /** 사용자 켬/끔 — 저장 전 캐시 포함 · 없으면 서버 값 */
+  /** 측점 간격(m) — 측점 글 「No.+거리」 의 분모 */
+  interval: number;
+  /** 사용자 켬/끔 — 서버 값(별 누름 = 바로 저장) */
   representative: (row: StationRow) => { on: boolean; user: boolean | null };
   editable: boolean;
 }
@@ -81,7 +84,7 @@ export function buildList(
     );
     verdict.classList.add("e03-verdict", `e03-verdict--${v}`);
     const station = el("span", {
-      text: row.label?.replace(/^STA\./, "").replace(/\.000$/, "") ?? row.key,
+      text: stationLabel(row.chainage_m, draw.interval, 1),
       children: row.walls
         ? [el("span", { className: "e03-wall-tag", text: "▦", attrs: { title: t("E03_Walls") } })]
         : [],
diff --git a/E03_StabSection/E03_StabSection_UI_Page.ts b/E03_StabSection/E03_StabSection_UI_Page.ts
index b7baa1711..4d5621753 100644
--- a/E03_StabSection/E03_StabSection_UI_Page.ts
+++ b/E03_StabSection/E03_StabSection_UI_Page.ts
@@ -24,7 +24,8 @@ import { t, type LocaleKey } from "@ui/ui_template_locale";
 import { mountGroupStep } from "../A00_Common/group_workflow";
 import { buildMissingBanner } from "../E01_StabRegister/E01_StabRegister_UI_Missing";
 import { buildList } from "./E03_StabSection_UI_List";
-import { buildPlan } from "./E03_StabSection_UI_Plan";
+import { buildPlan, type PlanView } from "./E03_StabSection_UI_Plan";
+import { inferStationInterval, stationLabel } from "../common_util/common_util_station";
 import { card, check, emptyBox, muted } from "./E03_StabSection_UI_Parts";
 import { buildResult } from "./E03_StabSection_UI_Result";
 import {
@@ -84,7 +85,6 @@ async function api<T>(path: string, init?: RequestInit): Promise<T> {
   return body;
 }
 
-const repKey = (projectId: string): string => `e03_representative_cache:${projectId}`;
 const sleep = (ms: number): Promise<void> => new Promise((r) => setTimeout(r, ms));
 
 export function renderE03StabSection(root: HTMLElement): void {
@@ -111,9 +111,9 @@ export function renderE03StabSection(root: HTMLElement): void {
   const slopeRecs = new Map<string, WhatIfRecord>(); // 측점 열쇠 → 마지막 가정
   const wallRecs = new Map<string, WallRecord>();
   const supportRecs = new Map<string, SupportRecord>();
-  let repCache: Record<string, boolean | null> = JSON.parse(
-    sessionStorage.getItem(repKey(pid)) ?? "{}",
-  );
+  let interval = 20; // 측점 간격 — 측점 목록에서 추정(요구 390)
+  const planView: PlanView = {};
+  let repSaving: Promise<void> = Promise.resolve(); // 별 누름마다 차례로 저장
 
   // ---- 좌측 ----
   const condField = createSelectField({
@@ -158,15 +158,10 @@ export function renderE03StabSection(root: HTMLElement): void {
     variant: "ghost",
     onClick: () => void show3d(),
   });
-  const repButton = createButton({
-    label: t("E03_RepSave"),
-    variant: "ghost",
-    onClick: () => void saveRep(),
-  });
   const controls = el("div", { className: "e03-panel__row" });
   controls.append(condField.root, sortField.root);
   const actions = el("div", { className: "ui-sidebar-actions" });
-  actions.append(repButton, view3dButton, analyzeButton);
+  actions.append(view3dButton, analyzeButton);
   panel.append(controls, ngBox, status, listHost, actions);
 
   // ---- 본문 ----
@@ -187,11 +182,8 @@ export function renderE03StabSection(root: HTMLElement): void {
 
   const repOf = (row: StationRow): { on: boolean; user: boolean | null } => {
     const server = row.representative ?? { auto: [], user: null, on: false };
-    if (!(row.key in repCache)) return { on: server.on, user: server.user };
-    const user = repCache[row.key];
-    return { on: user === null ? server.auto.length > 0 : user, user };
+    return { on: server.on, user: server.user };
   };
-  const repDirty = (): boolean => Object.keys(repCache).length > 0;
 
   const currentRow = (): StationRow | undefined => result?.stations.find((r) => r.key === active);
 
@@ -217,10 +209,8 @@ export function renderE03StabSection(root: HTMLElement): void {
       if (!result.fresh) lines.push(t("E03_Stale"));
     }
     if (result && !result.editable) lines.push(t("E03_ReadOnly"));
-    if (repDirty()) lines.push(t("E03_RepUnsaved"));
     status.textContent = lines.join("\n");
     analyzeButton.disabled = !result?.editable;
-    repButton.disabled = !result?.editable || !repDirty();
     view3dButton.disabled = result?.status !== "ok";
   };
 
@@ -235,22 +225,12 @@ export function renderE03StabSection(root: HTMLElement): void {
           sort,
           ngOnly,
           active,
+          interval,
           representative: repOf,
           editable: result.editable,
         },
         (key) => void select(key),
-        (key) => {
-          const row = result!.stations.find((r) => r.key === key)!;
-          const now = repOf(row).on;
-          const auto = (row.representative?.auto.length ?? 0) > 0;
-          // 자동과 같아지면 사용자 값 지움(null) — 서버 값과 같으면 캐시에서 뺌
-          const next = !now === auto ? null : !now;
-          if (next === (row.representative?.user ?? null)) delete repCache[key];
-          else repCache[key] = next;
-          sessionStorage.setItem(repKey(pid), JSON.stringify(repCache));
-          paintList();
-          paintStatus();
-        },
+        (key) => void toggleRep(key),
       ),
     );
   };
@@ -286,7 +266,7 @@ export function renderE03StabSection(root: HTMLElement): void {
     });
     const title = el("h3", {
       className: "e03-card__title",
-      text: `${view.label ?? view.key} · ${t(`E03_Cond_${condition}` as LocaleKey)}`,
+      text: `${stationLabel(view.chainage_m, interval, 1)} · ${t(`E03_Cond_${condition}` as LocaleKey)}`,
     });
     const flags = el("div", { className: "e03-panel__row" });
     flags.append(
@@ -399,7 +379,16 @@ export function renderE03StabSection(root: HTMLElement): void {
 
   const paintPlan = (): void => {
     planHost.replaceChildren(
-      result ? buildPlan(result.stations, condition, active, (key) => void select(key)) : el("div"),
+      result
+        ? buildPlan(
+            result.stations,
+            condition,
+            active,
+            interval,
+            planView,
+            (key) => void select(key),
+          )
+        : el("div"),
     );
   };
 
@@ -438,7 +427,10 @@ export function renderE03StabSection(root: HTMLElement): void {
       condition,
     );
     const keys = result.stations.map((r) => r.key);
-    repCache = Object.fromEntries(Object.entries(repCache).filter(([k]) => keys.includes(k)));
+    interval = inferStationInterval(
+      result.stations.slice().sort((a, b) => a.chainage_m - b.chainage_m),
+    );
+    delete planView.zoom; // 다시 읽음 = 띠 원배율
     if (!active || !keys.includes(active)) {
       // 처음 = 그 조건 가장 낮은 안전율 측점
       const worst = result.stations
@@ -488,20 +480,50 @@ export function renderE03StabSection(root: HTMLElement): void {
     }
   }
 
-  async function saveRep(): Promise<void> {
-    try {
+  /** 별 누름 = 바로 저장(요구 390) — 자동과 같아지면 사용자 값 지움(null) · 저장 뒤 보고서 갱신 */
+  function toggleRep(key: string): Promise<void> {
+    repSaving = repSaving.then(async () => {
+      const row = result?.stations.find((r) => r.key === key);
+      if (!row) return;
+      const server = row.representative ?? { auto: [], user: null, on: false };
+      const auto = server.auto.length > 0;
+      const next = !server.on === auto ? null : !server.on;
       const overrides: Record<string, boolean | null> = {};
-      for (const row of result?.stations ?? []) {
-        const user = row.key in repCache ? repCache[row.key] : (row.representative?.user ?? null);
-        if (user !== null) overrides[row.key] = user;
+      for (const r of result?.stations ?? []) {
+        const user = r.key === key ? next : (r.representative?.user ?? null);
+        if (user !== null) overrides[r.key] = user;
       }
-      await api(`${base}/representative`, { method: "PUT", body: JSON.stringify({ overrides }) });
-      repCache = {};
-      sessionStorage.removeItem(repKey(pid));
-      showToast(t("E03_RepSaved"), "success");
-      await load();
-    } catch (error) {
-      showToast(error instanceof Error ? error.message : t("Common_Status_Error"), "error");
+      try {
+        await api(`${base}/representative`, { method: "PUT", body: JSON.stringify({ overrides }) });
+        row.representative = { ...server, user: next, on: next === null ? auto : next };
+        paintList();
+        void refreshReport();
+      } catch (error) {
+        showToast(error instanceof Error ? error.message : t("Common_Status_Error"), "error");
+      }
+    });
+    return repSaving;
+  }
+
+  /** 보고서 갱신 — E05 [보고서 갱신] 과 같은 길(GET 이 작업본 없으면 처음 만듦 · 뒤에서) */
+  let reportRun = 0;
+  async function refreshReport(): Promise<void> {
+    const run = ++reportRun;
+    await sleep(800); // 별을 잇달아 누르면 마지막 한 번만
+    if (run !== reportRun) return;
+    try {
+      const state = await api<{ book: unknown; rev: string | null }>(
+        `/projects/${pid}/stab/report`,
+      );
+      if (!state.book || run !== reportRun) return;
+      const body = await api<{ overwritten?: string[] }>(`/projects/${pid}/stab/report/refresh`, {
+        method: "POST",
+        body: JSON.stringify({ rev: state.rev }),
+      });
+      const over = body.overwritten ?? [];
+      if (over.length) showToast(`${t("E05_Overwritten")} ${over.join(" · ")}`, "warning", 8000);
+    } catch {
+      /* 보고서는 E05 를 열 때 stale 로 알림 */
     }
   }
 
diff --git a/E03_StabSection/E03_StabSection_UI_Plan.ts b/E03_StabSection/E03_StabSection_UI_Plan.ts
index cb38e360c..cb1bacaea 100644
--- a/E03_StabSection/E03_StabSection_UI_Plan.ts
+++ b/E03_StabSection/E03_StabSection_UI_Plan.ts
@@ -3,14 +3,20 @@
  * E03 위 평면 위험 띠(PLAN 532-3) — 측점 중심을 이은 노선을 그 조건 판정 색으로(이웃 측점 사이
  *   가운데서 끊음 · 북쪽 위 · 같은 축척) · 고른 측점 표시 · 누르면 가장 가까운 측점.
  *   범례 = 판정마다 아이콘 + 글 + 측점 수. 계산은 logic `bandSegments` · `planFit`.
+ *   확대 · 이동 = 공용 `attachSvgZoomPan`(휠 · 가운데 끌기 · 두 번 누름 원배율 · 요구 390) · 측점 글 솎음
+ *   = logic `labelStride` · `planLabelKeys` · 배율 · 폭은 바깥 `PlanView` 가 쥠(다시 지어도 살아남음).
  * ========================================================================== */
 
 import { createBadge } from "@ui/ui_template_badge";
+import { attachSvgZoomPan, type ZoomPanState } from "../A00_Common/b_svg_zoom_pan";
+import { stationLabel } from "../common_util/common_util_station";
 import { el } from "@ui/ui_template_elements";
 import { t, type LocaleKey } from "@ui/ui_template_locale";
 import {
   bandSegments,
+  labelStride,
   planFit,
+  planLabelKeys,
   verdictOf,
   type Condition,
   type Point,
@@ -21,11 +27,20 @@ import { svgEl } from "./E03_StabSection_UI_Section";
 
 const H = 96;
 const PAD = 10;
+const LABEL_GAP = 64; // 측점 글 사이 최소 화면 간격(px)
+
+/** 띠 배율 · 그때 폭 — 폭이 바뀌면 원배율로 */
+export interface PlanView {
+  zoom?: ZoomPanState;
+  width?: number;
+}
 
 export function buildPlan(
   rows: StationRow[],
   condition: Condition,
   active: string | null,
+  interval: number,
+  state: PlanView,
   onSelect: (key: string) => void,
 ): HTMLElement {
   const box = card("e03-plan");
@@ -49,47 +64,110 @@ export function buildPlan(
 
   const host = el("div");
   box.append(host);
+  const ro = new ResizeObserver(() => draw());
   const draw = (): void => {
+    if (!host.isConnected) return void ro.disconnect(); // 다시 지은 띠 — 옛 것은 손 뗌
     const W = Math.max(host.clientWidth, 300);
     const segs = bandSegments(rows, condition);
     const all: Point[] = segs.flatMap((s) => s.points);
     const svg = svgEl("svg", { viewBox: `0 0 ${W} ${H}`, "data-role": "plan" });
-    if (all.length) {
-      const fit = planFit(all, W, H, PAD);
-      const scr = (p: Point): Point => [fit.k * p[0] + fit.tx, -fit.k * p[1] + fit.ty];
-      for (const seg of segs) {
-        svg.append(
-          svgEl("polyline", {
-            points: seg.points.map((p) => scr(p).join(",")).join(" "),
-            class: `e03-plan__seg e03-plan__seg--${seg.verdict}`,
-            "data-verdict": seg.verdict,
-          }),
-        );
-      }
-      const centers = rows.filter((r) => r.center && r.center[0] !== null && r.center[1] !== null);
-      const picked = centers.find((r) => r.key === active);
-      if (picked) {
-        const [x, y] = scr([picked.center![0]!, picked.center![1]!]);
-        svg.append(
-          svgEl("circle", { cx: x, cy: y, r: 6, class: "e03-plan__pick", "data-key": picked.key }),
-        );
-      }
-      svg.addEventListener("click", (ev) => {
-        const box2 = svg.getBoundingClientRect();
-        const px = ((ev.clientX - box2.left) / box2.width) * W;
-        const py = ((ev.clientY - box2.top) / box2.height) * H;
-        let best: StationRow | null = null;
-        let dist = Infinity;
-        for (const r of centers) {
-          const [x, y] = scr([r.center![0]!, r.center![1]!]);
-          const d = Math.hypot(x - px, y - py);
-          if (d < dist) [best, dist] = [r, d];
-        }
-        if (best && dist < 30) onSelect(best.key);
-      });
-    }
     host.replaceChildren(svg);
+    if (!all.length) return;
+    const fit = planFit(all, W, H, PAD);
+    const scr = (p: Point): Point => [fit.k * p[0] + fit.tx, -fit.k * p[1] + fit.ty];
+    const layer = svgEl("g", { "data-role": "plan-layer" }) as SVGGElement;
+    for (const seg of segs) {
+      layer.append(
+        svgEl("polyline", {
+          points: seg.points.map((p) => scr(p).join(",")).join(" "),
+          class: `e03-plan__seg e03-plan__seg--${seg.verdict}`,
+          "data-verdict": seg.verdict,
+        }),
+      );
+    }
+    const centers = rows
+      .filter((r) => r.center && r.center[0] !== null && r.center[1] !== null)
+      .sort((a, b) => a.chainage_m - b.chainage_m);
+    const at = (r: StationRow): Point => scr([r.center![0]!, r.center![1]!]);
+    // 측점 간격 하나의 화면 길이(원배율) — 중심 이은 길이 ÷ 누가 길이 × 간격
+    const span =
+      centers.length > 1 ? centers[centers.length - 1].chainage_m - centers[0].chainage_m : 0;
+    let len = 0;
+    for (let i = 1; i < centers.length; i += 1) {
+      const [a, b] = [at(centers[i - 1]), at(centers[i])];
+      len += Math.hypot(b[0] - a[0], b[1] - a[1]);
+    }
+    const intervalPx = span > 0 ? (len / span) * interval : 0;
+    const maxScale = Math.min(500, Math.max(8, Math.ceil(240 / Math.max(intervalPx, 1e-3))));
+    const picked = centers.find((r) => r.key === active);
+    const pick = picked
+      ? svgEl("circle", {
+          cx: at(picked)[0],
+          cy: at(picked)[1],
+          r: 6,
+          class: "e03-plan__pick",
+          "data-key": picked.key,
+        })
+      : null;
+    const labels = svgEl("g", { class: "e03-plan__labels" }) as SVGGElement;
+    layer.append(labels, ...(pick ? [pick] : []));
+    svg.append(layer);
+    let stride = 0;
+    const apply = (s: ZoomPanState): void => {
+      state.zoom = s;
+      labels.style.setProperty("--e03-label-k", String(1 / s.scale)); // 글 · 표시는 확대 안 함
+      pick?.setAttribute("r", String(6 / s.scale));
+      const next = intervalPx > 0 ? labelStride(intervalPx * s.scale, LABEL_GAP) : 100;
+      if (next === stride) return;
+      stride = next;
+      const keep = new Set(planLabelKeys(centers, interval, stride, active));
+      labels.replaceChildren(
+        ...centers
+          .filter((r) => keep.has(r.key))
+          .map((r) =>
+            svgEl(
+              "text",
+              {
+                x: at(r)[0],
+                y: at(r)[1],
+                dy: "-0.9em",
+                class: "e03-label e03-plan__label",
+                "data-key": r.key,
+              },
+              stationLabel(r.chainage_m, interval, 1),
+            ),
+          ),
+      );
+    };
+    const initial = state.width === W ? state.zoom : undefined;
+    state.width = W;
+    attachSvgZoomPan({
+      svg,
+      layer,
+      widthPx: W,
+      heightPx: H,
+      pad: { left: 0, right: 0, top: 0, bottom: 0 },
+      wheelZoom: true,
+      maxScale,
+      initial,
+      onChange: apply,
+    });
+    apply(initial ?? { scale: 1, tx: 0, ty: 0 });
+    svg.addEventListener("click", (ev) => {
+      const box2 = svg.getBoundingClientRect();
+      const px = ((ev.clientX - box2.left) / box2.width) * W;
+      const py = ((ev.clientY - box2.top) / box2.height) * H;
+      const s = state.zoom ?? { scale: 1, tx: 0, ty: 0 };
+      let best: StationRow | null = null;
+      let dist = Infinity;
+      for (const r of centers) {
+        const [x, y] = at(r);
+        const d = Math.hypot(s.scale * x + s.tx - px, s.scale * y + s.ty - py);
+        if (d < dist) [best, dist] = [r, d];
+      }
+      if (best && dist < 30) onSelect(best.key);
+    });
   };
-  new ResizeObserver(draw).observe(host);
+  ro.observe(host);
   return box;
 }
diff --git a/E03_StabSection/E03_StabSection_UI_Style.css b/E03_StabSection/E03_StabSection_UI_Style.css
index f0de0ff7b..e1225726f 100644
--- a/E03_StabSection/E03_StabSection_UI_Style.css
+++ b/E03_StabSection/E03_StabSection_UI_Style.css
@@ -78,7 +78,7 @@
 /* ---- 틀 ---- */
 .e03-page {
   display: grid;
-  grid-template-rows: auto minmax(0, 1fr);
+  grid-template-rows: auto auto minmax(0, 1fr);
   gap: var(--spacing-8);
   height: calc(100dvh - var(--app-header-h));
   padding: var(--spacing-8) var(--spacing-12);
@@ -207,6 +207,7 @@
 .e03-plan__seg {
   fill: none;
   stroke-width: 7;
+  vector-effect: non-scaling-stroke;
   stroke-linecap: butt;
   stroke-linejoin: round;
   cursor: pointer;
@@ -228,6 +229,12 @@
   fill: var(--e03-plot);
   stroke: var(--e03-critical);
   stroke-width: 2;
+  vector-effect: non-scaling-stroke;
+}
+
+.e03-plan__label {
+  text-anchor: middle;
+  pointer-events: none;
 }
 
 .e03-legend {
diff --git a/E03_StabSection/logic/E03_StabSection_Logic.ts b/E03_StabSection/logic/E03_StabSection_Logic.ts
index c869cb37a..969d97871 100644
--- a/E03_StabSection/logic/E03_StabSection_Logic.ts
+++ b/E03_StabSection/logic/E03_StabSection_Logic.ts
@@ -190,6 +190,31 @@ export function planFit(
   return { k, tx: width / 2 - (k * (x0 + x1)) / 2, ty: height / 2 + (k * (y0 + y1)) / 2 };
 }
 
+/** 평면 띠 측점 글 솎음 걸음 — 측점 간격 화면 길이(px) × 걸음이 minPx 넘는 가장 작은 것 */
+export const PLAN_LABEL_STRIDES = [1, 2, 5, 10, 25, 50, 100] as const;
+
+export function labelStride(intervalPx: number, minPx: number): number {
+  return PLAN_LABEL_STRIDES.find((s) => s * intervalPx >= minPx) ?? 100;
+}
+
+/** 측점 글 붙일 열쇠 — 본 측점(간격 배수) 중 걸음 배수 · 걸음 1 이면 보조 측점도 · 고른 측점은 늘 */
+export function planLabelKeys(
+  rows: StationRow[],
+  interval: number,
+  stride: number,
+  active: string | null,
+): string[] {
+  const step = interval > 0 ? interval : 1;
+  return rows
+    .filter((r) => r.center && r.center[0] !== null && r.center[1] !== null)
+    .filter((r) => {
+      if (r.key === active || stride === 1) return true;
+      const n = Math.round(r.chainage_m / step);
+      return Math.abs(r.chainage_m - n * step) < 0.05 && n % stride === 0;
+    })
+    .map((r) => r.key);
+}
+
 /* ---- 안전율 색 ------------------------------------------------------------ */
 
 /** 등안전율 띠 — 안전율 ÷ 기준안전율 경계(빨강 셋 · 회색 하나 · 파랑 셋 · 가운데 = 기준 통과 직후) */
diff --git a/resources/tester/test_532_3_e03_section.py b/resources/tester/test_532_3_e03_section.py
index 7f1a08727..17d0cd9cd 100644
--- a/resources/tester/test_532_3_e03_section.py
+++ b/resources/tester/test_532_3_e03_section.py
@@ -411,6 +411,9 @@ process.stdout.write(JSON.stringify({
   stress: m.sliceStress([input.slice]),
   ticks: m.niceTicks(-3, 47, 5),
   zAt: [m.zAt([[0, 0], [10, 10]], 2.5), m.zAt([[10, 10], [0, 0]], -5)],
+  stride: [m.labelStride(100, 64), m.labelStride(40, 64), m.labelStride(10, 64), m.labelStride(0.1, 64)],
+  labels: [1, 2, 5].map((k) => m.planLabelKeys(input.rows, 20, k, null)),
+  labelsActive: m.planLabelKeys(input.rows, 20, 5, "e"),
 }));
 """
 
@@ -541,6 +544,10 @@ def test_logic_TS():
     )
     assert out["ticks"][0] <= -3 and out["ticks"][-1] >= 47 and 0 in out["ticks"]
     assert out["zAt"] == [2.5, 0]
+    # 평면 띠 측점 글 솎음 — 간격 px × 걸음 ≥ 64 · 본 측점 중 걸음 배수 · 고른 측점은 늘
+    assert out["stride"] == [1, 2, 10, 100]
+    assert out["labels"] == [["a", "b", "c", "d", "e"], ["a", "c", "e"], ["a"]]
+    assert out["labelsActive"] == ["a", "e"]
 
 
 def test_엔진_지문은_코드_내용():
diff --git a/resources/tester/test_561_1_sheet_encoding.py b/resources/tester/test_561_1_sheet_encoding.py
new file mode 100644
index 000000000..3ced79cfd
--- /dev/null
+++ b/resources/tester/test_561_1_sheet_encoding.py
@@ -0,0 +1,74 @@
+"""PLAN 561-1 — `.cpg` 없는 도엽 dbf = cp949 로 읽음 · 병합 열쇠에 파서 판 번호.
+
+    ./venv/Scripts/python.exe -m pytest resources/tester/test_561_1_sheet_encoding.py -q
+
+`.cpg` 없는 dbf 를 그냥 읽으면 latin-1 → 칸 이름 「등고수치」가 깨져 등고 높이가 빔
+(D 프로젝트 4250c7bc 「등고 라인 94단을 격자에 굽어 0셀」).
+"""
+
+from __future__ import annotations
+
+import sys
+import zipfile
+from pathlib import Path
+
+import geopandas as gpd
+from shapely.geometry import LineString
+
+ROOT = Path(__file__).resolve().parents[2]
+if str(ROOT) not in sys.path:
+    sys.path.insert(0, str(ROOT))
+
+import B04_PreProcess.B04_PreProcess_Engine_SheetParser as parser  # noqa: E402
+
+BASE = "N3L_F0010000"
+
+
+def _sheet_zip(tmp_path: Path, with_cpg: bool) -> Path:
+    """등고선 두 줄짜리 도엽 zip — dbf 는 cp949 · `.cpg` 는 고름."""
+    shp_dir = tmp_path / ("cpg" if with_cpg else "nocpg")
+    shp_dir.mkdir()
+    gdf = gpd.GeoDataFrame(
+        {"등고수치": [100.0, 105.0], "구분": ["주곡선", "주곡선"]},
+        geometry=[LineString([(0, 0), (10, 0)]), LineString([(0, 5), (10, 5)])],
+        crs="EPSG:5186",
+    )
+    gdf.to_file(shp_dir / f"{BASE}.shp", encoding="cp949")
+    cpg = shp_dir / f"{BASE}.cpg"
+    if with_cpg:
+        cpg.write_text("CP949", encoding="ascii")
+    else:
+        cpg.unlink(missing_ok=True)
+    zip_path = tmp_path / f"{shp_dir.name}.zip"
+    with zipfile.ZipFile(zip_path, "w") as zf:
+        for f in shp_dir.iterdir():
+            zf.write(f, f.name)
+    return zip_path
+
+
+def _read(zip_path: Path) -> gpd.GeoDataFrame:
+    gdf = parser._read_layer_from_zip(zip_path, "N3L", "F0010000", "EPSG:5186")
+    assert gdf is not None
+    return gdf
+
+
+def test_no_cpg_reads_cp949(tmp_path):
+    gdf = _read(_sheet_zip(tmp_path, with_cpg=False))
+    assert "등고수치" in gdf.columns
+    assert sorted(gdf["등고수치"].tolist()) == [100.0, 105.0]
+    assert set(gdf["구분"]) == {"주곡선"}
+
+
+def test_with_cpg_unchanged(tmp_path):
+    gdf = _read(_sheet_zip(tmp_path, with_cpg=True))
+    assert sorted(gdf["등고수치"].tolist()) == [100.0, 105.0]
+
+
+def test_merge_keys_carry_parser_version():
+    assert parser.PARSER_VERSION >= 2
+    for rel in (
+        "B04_PreProcess/B04_PreProcess_Engine.py",
+        "D03_PlanAnalysis/D03_PlanAnalysis_Terrain.py",
+    ):
+        text = (ROOT / rel).read_text(encoding="utf-8")
+        assert '"parser": PARSER_VERSION' in text, rel
diff --git a/resources/tester/test_562_1_plan_draw.py b/resources/tester/test_562_1_plan_draw.py
new file mode 100644
index 000000000..e42bff53d
--- /dev/null
+++ b/resources/tester/test_562_1_plan_draw.py
@@ -0,0 +1,203 @@
+"""D03 수동 그리기 셈 거울(PLAN 562-1) — 파이썬 `D03_PlanAnalysis_Draw` ↔
+TS `logic/D03_PlanAnalysis_Draw.ts`.
+
+같은 높이 함수(`hill` · x > 800 = 지형 밖)로 두 쪽 값이 같은지 + 손셈 값.
+
+./venv/Scripts/python.exe -m pytest resources/tester/test_562_1_plan_draw.py -q
+"""
+
+from __future__ import annotations
+
+import json
+import math
+import re
+import subprocess
+import sys
+from pathlib import Path
+
+import pytest
+
+ROOT = Path(__file__).resolve().parents[2]
+if str(ROOT) not in sys.path:
+    sys.path.insert(0, str(ROOT))
+
+from D03_PlanAnalysis import D03_PlanAnalysis_Draw as draw  # noqa: E402
+
+TS_FILE = ROOT / "D03_PlanAnalysis" / "logic" / "D03_PlanAnalysis_Draw.ts"
+TSC = ROOT / "config" / "node_modules" / "typescript" / "bin" / "tsc"
+
+
+def hill(x: float, y: float) -> float:
+    if x > 800:
+        return math.nan
+    return 0.0005 * x * x + 3 * math.sin(y / 40)
+
+
+def plane(x: float, y: float) -> float:
+    return 0.1 * x
+
+
+LINE = [[0.0, 0.0], [30.0, 40.0], [30.0, 100.0], [90.0, 180.0]]  # 50 + 60 + 100 = 210 m
+
+# (함수 이름, 인자) — 높이 자리는 "hill" · "plane" 글자로 넘김
+CASES = [
+    ("segmentLength", [[1, 2], [4, 6]]),
+    ("groundSlopePct", [[0, 0], [100, 30], "hill"]),
+    ("groundSlopePct", [[100, 30], [0, 0], "hill"]),
+    ("groundSlopePct", [[700, 0], [900, 0], "hill"]),
+    ("groundSlopePct", [[5, 5], [5, 5], "hill"]),
+    ("fixedLengthPoint", [[10, 10], [13, 14], 20]),
+    ("fixedLengthPoint", [[10, 10], [10, 10], 20]),
+    ("fixedSlopePoint", [[0, 0], [50, 0], 9, "hill"]),
+    ("fixedSlopePoint", [[0, 0], [50, 0], -9, "hill"]),
+    ("fixedSlopePoint", [[100, 30], [130, 70], 12, "hill"]),
+    ("fixedSlopePoint", [[0, 0], [50, 0], 9, "hill", 100]),
+    ("fixedSlopePoint", [[600, 0], [700, 0], 1, "hill"]),
+    ("compassCandidates", [[0, 0], 50, 5, "plane"]),
+    ("compassCandidates", [[200, 10], 60, 15, "hill"]),
+    ("compassCandidates", [[0, 0], 50, 50, "plane"]),
+    ("compassPoint", [[0, 0], [10, 40], 50, 5, "plane"]),
+    ("compassPoint", [[0, 0], [10, 40], 50, 50, "plane"]),
+    ("lineLength", [LINE]),
+    ("pointAtDistance", [LINE, -5]),
+    ("pointAtDistance", [LINE, 75]),
+    ("pointAtDistance", [LINE, 500]),
+    ("distanceAlong", [LINE, [40, 70]]),
+    ("distanceAlong", [LINE, [-10, -10]]),
+    ("sliceLine", [LINE, 25, 160]),
+    ("sliceLine", [LINE, 160, 25]),
+    ("stationChainages", [210]),
+    ("stationChainages", [40, 20]),
+    ("stationChainages", [0]),
+]
+
+_RUNNER = """
+import { readFileSync, writeFileSync } from "node:fs";
+import * as draw from "./D03_PlanAnalysis/logic/D03_PlanAnalysis_Draw.js";
+const heights = {
+  hill: (x, y) => (x > 800 ? NaN : 0.0005 * x * x + 3 * Math.sin(y / 40)),
+  plane: (x, y) => 0.1 * x,
+};
+const cases = JSON.parse(readFileSync(process.argv[2], "utf8"));
+const out = cases.map(([name, args]) =>
+  draw[name](...args.map((a) => (typeof a === "string" ? heights[a] : a))),
+);
+writeFileSync(process.argv[3], JSON.stringify(out));
+"""
+
+_HEIGHTS = {"hill": hill, "plane": plane}
+_PY = {
+    "segmentLength": draw.segment_length,
+    "groundSlopePct": draw.ground_slope_pct,
+    "fixedLengthPoint": draw.fixed_length_point,
+    "fixedSlopePoint": draw.fixed_slope_point,
+    "compassCandidates": draw.compass_candidates,
+    "compassPoint": draw.compass_point,
+    "lineLength": draw.line_length,
+    "pointAtDistance": draw.point_at_distance,
+    "distanceAlong": draw.distance_along,
+    "sliceLine": draw.slice_line,
+    "stationChainages": draw.station_chainages,
+}
+
+
+def _py(name: str, args: list) -> object:
+    return _PY[name](*(_HEIGHTS[a] if isinstance(a, str) else a for a in args))
+
+
+def _close(a: object, b: object) -> bool:
+    if a is None or b is None:
+        return a is b
+    if isinstance(a, (int, float)):
+        return isinstance(b, (int, float)) and abs(a - b) < 1e-6
+    return len(a) == len(b) and all(_close(x, y) for x, y in zip(a, b))  # type: ignore[arg-type]
+
+
+@pytest.fixture(scope="module")
+def ts_out(tmp_path_factory: pytest.TempPathFactory) -> list:
+    tmp = tmp_path_factory.mktemp("draw")
+    out = tmp / "js"
+    subprocess.run(  # noqa: S603 — 고정 실행 파일
+        [
+            "node",
+            str(TSC),
+            str(TS_FILE),
+            "--outDir",
+            str(out),
+            "--rootDir",
+            str(ROOT),
+            "--module",
+            "esnext",
+            "--target",
+            "es2022",
+            "--moduleResolution",
+            "bundler",
+            "--ignoreConfig",
+        ],
+        cwd=str(ROOT),
+        check=True,
+        capture_output=True,
+    )
+    for emitted in out.rglob("*.js"):
+        emitted.write_text(
+            re.sub(r'(from\s+"\.\.?/[^"]+)"', r'\1.js"', emitted.read_text(encoding="utf-8")),
+            encoding="utf-8",
+        )
+    (out / "runner.mjs").write_text(_RUNNER, encoding="utf-8")
+    job = tmp / "job.json"
+    result = tmp / "out.json"
+    job.write_text(json.dumps(CASES), encoding="utf-8")
+    subprocess.run(  # noqa: S603
+        ["node", str(out / "runner.mjs"), str(job), str(result)],
+        cwd=str(ROOT),
+        check=True,
+        capture_output=True,
+    )
+    return json.loads(result.read_text(encoding="utf-8"))
+
+
+def test_ts_matches_python(ts_out: list) -> None:
+    for (name, args), ts in zip(CASES, ts_out):
+        assert _close(ts, _py(name, args)), (name, args, ts, _py(name, args))
+
+
+def test_hand_values() -> None:
+    assert draw.segment_length((1, 2), (4, 6)) == 5
+    # 오르막 + · 내리막 − · 지형 밖 · 길이 0
+    up = draw.ground_slope_pct((0, 0), (100, 0), hill)
+    assert up == pytest.approx(5.0)
+    assert draw.ground_slope_pct((100, 0), (0, 0), hill) == pytest.approx(-5.0)
+    assert draw.ground_slope_pct((700, 0), (900, 0), hill) is None
+    assert draw.ground_slope_pct((5, 5), (5, 5), hill) is None
+    assert draw.fixed_length_point((10, 10), (13, 14), 20) == pytest.approx((22, 26))
+    # z = 0.0005 x² · x0 = 0 → 평균 기울기 0.0005 t = 9 % 첫 자리 t = 180
+    # 부호 무관 · 한도 100 m = 없음
+    assert draw.fixed_slope_point((0, 0), (50, 0), 9, hill) == pytest.approx((180, 0), abs=1e-6)
+    assert draw.fixed_slope_point((0, 0), (50, 0), -9, hill) == pytest.approx((180, 0), abs=1e-6)
+    assert draw.fixed_slope_point((0, 0), (50, 0), 9, hill, 100) is None
+    # 지형 밖에 닿음
+    assert draw.fixed_slope_point((600, 0), (700, 0), 1, hill) is None
+    # 평면 10 % · 반지름 50 · 5 % → cos θ = ±0.5 · 60 · 120 · 240 · 300°
+    got = draw.compass_candidates((0, 0), 50, 5, plane)
+    angles = sorted(round(math.degrees(math.atan2(y, x)) % 360, 6) for x, y in got)
+    assert angles == [60, 120, 240, 300]
+    assert draw.compass_candidates((0, 0), 50, 50, plane) == []
+    near = draw.compass_point((0, 0), (10, 40), 50, 5, plane)
+    assert near == pytest.approx((25, 25 * math.sqrt(3)), abs=1e-6)
+    assert draw.compass_point((0, 0), (10, 40), 50, 50, plane) is None
+
+
+def test_line_values() -> None:
+    assert draw.line_length(LINE) == 210
+    assert draw.point_at_distance(LINE, -5) == (0, 0)
+    assert draw.point_at_distance(LINE, 75) == (30, 65)
+    assert draw.point_at_distance(LINE, 500) == (90, 180)
+    assert draw.distance_along(LINE, (40, 70)) == 80
+    assert draw.distance_along(LINE, (-10, -10)) == 0
+    assert draw.slice_line(LINE, 25, 160) == pytest.approx(
+        [(15, 20), (30, 40), (30, 100), (60, 140)]
+    )
+    assert draw.slice_line(LINE, 160, 25) == draw.slice_line(LINE, 25, 160)
+    assert draw.station_chainages(210) == [0, 20, 40, 60, 80, 100, 120, 140, 160, 180, 200, 210]
+    assert draw.station_chainages(40, 20) == [0, 20, 40]
+    assert draw.station_chainages(0) == [0]
diff --git a/ui_template/ui_template_locale_e03.ts b/ui_template/ui_template_locale_e03.ts
index 2051255c8..29befffc6 100644
--- a/ui_template/ui_template_locale_e03.ts
+++ b/ui_template/ui_template_locale_e03.ts
@@ -25,9 +25,6 @@ export const ui_locales_e03 = {
   E03_Fresh: ["입력이 같아 다시 셀 것이 없습니다.", "Inputs unchanged — nothing to recompute."],
   E03_View3d: ["3D 보기", "3D View"],
   E03_View3d_Legend: ["최소 안전율 ÷ 기준안전율", "Min FS ÷ required FS"],
-  E03_RepSave: ["대표 단면 저장", "Save Representative"],
-  E03_RepSaved: ["대표 단면을 저장했습니다.", "Representative sections saved."],
-  E03_RepUnsaved: ["대표 단면 바뀜 — 저장 안 됨", "Representative changes not saved"],
   E03_Loading: ["불러오는 중…", "Loading…"],
   E03_NotYet: [
     "아직 해석하지 않았습니다 — [해석]을 누르세요.",