auto: 2026-09-28 17:00 (ESD_LAPTOP)

B07_DesignDetail/openwebcad/src/helpers/draw-functions.ts

@@ -11,6 +11,9 @@ import {
 	SNAP_POINT_SIZE,
 } from '../App.consts';
 import { type SnapPoint, SnapPointType } from '../App.types';
+
+/** 기준점 십자 반길이(px) — 가로세로 20px. */
+const ORIGIN_MARKER_SIZE = 10;
 import type { DrawController } from '../drawControllers/DrawController';
 import type { ScreenCanvasDrawController } from '../drawControllers/screenCanvas.drawController';
 import type { Entity } from '../entities/Entity';
@@ -229,6 +232,23 @@ export function drawCursor(drawController: ScreenCanvasDrawController) {
 	);
 }
 
+/** 좌표 0,0 기준점 — 화면 크기 고정 십자 + 작은 원. 도면 개체가 아니라 그리기 겹판(저장 · 선택 · 스냅 대상 아님). */
+export function drawOriginMarker(drawController: ScreenCanvasDrawController) {
+	const origin = drawController.worldToTarget(new Point(0, 0));
+	drawController.setOpacity(0.6);
+	drawController.setLineStyles(false, false, '#ffffff', 1, []); // 자동색 — 바탕 따라 흰/검정
+	drawController.drawLineScreen(
+		new Point(origin.x - ORIGIN_MARKER_SIZE, origin.y),
+		new Point(origin.x + ORIGIN_MARKER_SIZE, origin.y)
+	);
+	drawController.drawLineScreen(
+		new Point(origin.x, origin.y - ORIGIN_MARKER_SIZE),
+		new Point(origin.x, origin.y + ORIGIN_MARKER_SIZE)
+	);
+	drawController.drawArcScreen(origin, ORIGIN_MARKER_SIZE / 3, 0, 2 * Math.PI, true);
+	drawController.setOpacity(1);
+}
+
 /** 선택한 객체의 그립(편집점)을 화면 크기 고정 사각형으로 그린다 */
 export function drawGrips(drawController: ScreenCanvasDrawController, entities: Entity[]) {
 	for (const entity of entities) {

B07_DesignDetail/openwebcad/src/helpers/draw.ts

@@ -13,6 +13,7 @@ import {
 	getShouldDrawCursor,
 	getSnapPoint,
 	getSnapPointOnAngleGuide,
+	isOriginMarker,
 	isViewOnly,
 } from '../state';
 import {
@@ -21,6 +22,7 @@ import {
 	drawEntities,
 	drawGrips,
 	drawHelpers,
+	drawOriginMarker,
 	drawSnapPoint,
 } from './draw-functions';
 import { getClosestSnapPoint } from './get-closest-snap-point';
@@ -48,6 +50,7 @@ export function draw(drawController: ScreenCanvasDrawController) {
 	drawScene(drawController, performance.now());
 	drawHighlightedEntities(drawController);
 
+	if (isOriginMarker()) drawOriginMarker(drawController);
 	drawGrips(drawController, getSelectedEntities());
 	drawHelpers(drawController, getAngleGuideEntities());
 	drawEntities(drawController, getGhostHelperEntities());

B07_DesignDetail/openwebcad/src/integration/aislo-drawing-bridge.ts

@@ -25,6 +25,7 @@ import {
 	setHostSave,
 	setHostTitle,
 	setLayers,
+	setOriginMarker,
 	setViewOnly,
 } from '../state.ts';
 import { setInspectorCollapsed, setRibbonCollapsed } from '../components/ui-state.ts';
@@ -66,6 +67,7 @@ interface DrawingLoadMessage {
 	panelsCollapsed?: boolean;
 	/** 미리보기 — 왼쪽 끌기 = 화면 옮기기 · 두 번 누름 = 전체 맞춤 · 선택 · 명령 안내 없음. */
 	viewOnly?: boolean;
+	originMarker?: boolean;
 }
 
 interface DrawingSaveRequestMessage {
@@ -223,6 +225,7 @@ export function registerAisloDrawingBridge() {
 			setRibbonCollapsed(event.data.ribbonCollapsed === true);
 			if (event.data.panelsCollapsed) setInspectorCollapsed(true);
 			setViewOnly(event.data.viewOnly === true);
+			setOriginMarker(event.data.originMarker === true);
 			if (event.data.frameEdit) applyFramePreview();
 			// 앞 도면에서 켜 둔 그리기 도구를 내린다. 안 내리면 **확정한 도면 위에도**
 			// 그 도구가 계속 그린다 — 읽기 전용은 새 명령만 막기 때문이다(2026-09-01 실측:

B07_DesignDetail/openwebcad/src/state.ts

@@ -194,6 +194,7 @@ let frameFields: Record<string, string> = {};
 let hostReadOnly = false;
 /** 미리보기(M02 집계표 카드) — 왼쪽 끌기 = 화면 옮기기 · 두 번 누름 = 전체 맞춤 · 선택 · 명령 안내 없음. */
 let viewOnly = false;
+let originMarker = false;
 let hostTitle = 'B07 상세 설계';
 let hostSave = false;
 
@@ -275,6 +276,8 @@ export const isDrawingDirty = () => drawingDirty;
  */
 export const isDrawingReadOnly = (): boolean => designMeta?.confirmed === true || hostReadOnly;
 export const isViewOnly = (): boolean => viewOnly;
+/** 좌표 0,0 기준점 십자를 그리는가 — 그리기 겹판일 뿐 도면 개체가 아니다. */
+export const isOriginMarker = (): boolean => originMarker;
 
 // setters
 export const setCanvas = (newCanvas: HTMLCanvasElement) => {
@@ -518,6 +521,10 @@ export const setHostReadOnly = (readOnly: boolean) => {
 	hostReadOnly = readOnly;
 	notifyWindow(HtmlEvent.UPDATE_STATE);
 };
+export const setOriginMarker = (enabled: boolean) => {
+	originMarker = enabled;
+	notifyWindow(HtmlEvent.UPDATE_STATE);
+};
 export const setViewOnly = (enabled: boolean) => {
 	viewOnly = enabled;
 	// 그리는 십자 커서 대신 손 모양 — 캔버스는 `cursor-none` 이라 안 두면 커서가 안 보임.