feat(All):Initial

2025-10-04 23:36:07 +08:00
commit 2b4e5d2668
1321 changed files with 415958 additions and 0 deletions
@@ -0,0 +1,86 @@
+
+import DxfArrayScanner, { IGroup } from '../DxfArrayScanner';
+import * as helpers from '../ParseHelpers'
+import IGeometry, { IEntity, IPoint } from './geomtry';
+
+export interface ISplineEntity extends IEntity {
+	controlPoints?: IPoint[];
+	fitPoints?: IPoint[];
+	startTangent: IPoint;
+	endTangent: IPoint;
+	knotValues: number[];
+	closed: boolean;
+	periodic: boolean;
+	rational: boolean;
+	planar: boolean;
+	linear: boolean;
+	degreeOfSplineCurve: number;
+	numberOfKnots: number;
+	numberOfControlPoints: number;
+	numberOfFitPoints: number;
+	normalVector: IPoint;
+}
+
+export default class Spline implements IGeometry {
+	public ForEntityName = 'SPLINE' as const;
+	public parseEntity(scanner: DxfArrayScanner, curr: IGroup) {
+		const entity = { type: curr.value } as ISplineEntity;
+		curr = scanner.next();
+		while (!scanner.isEOF()) {
+			if (curr.code === 0) break;
+
+			switch (curr.code) {
+				case 10:
+					if (!entity.controlPoints) entity.controlPoints = [];
+					entity.controlPoints.push(helpers.parsePoint(scanner));
+					break;
+				case 11:
+					if (!entity.fitPoints) entity.fitPoints = [];
+					entity.fitPoints.push(helpers.parsePoint(scanner));
+					break;
+				case 12:
+					entity.startTangent = helpers.parsePoint(scanner);
+					break;
+				case 13:
+					entity.endTangent = helpers.parsePoint(scanner);
+					break;
+				case 40:
+					if (!entity.knotValues) entity.knotValues = [];
+					entity.knotValues.push(curr.value as number);
+					break;
+				case 70:
+					if (((curr.value as number) & 1) != 0) entity.closed = true;
+					if (((curr.value as number) & 2) != 0) entity.periodic = true;
+					if (((curr.value as number) & 4) != 0) entity.rational = true;
+					if (((curr.value as number) & 8) != 0) entity.planar = true;
+					if (((curr.value as number) & 16) != 0) {
+						entity.planar = true;
+						entity.linear = true;
+					}
+					break;
+
+				case 71:
+					entity.degreeOfSplineCurve = curr.value as number;
+					break;
+				case 72:
+					entity.numberOfKnots = curr.value as number;
+					break;
+				case 73:
+					entity.numberOfControlPoints = curr.value as number;
+					break;
+				case 74:
+					entity.numberOfFitPoints = curr.value as number;
+					break;
+				case 210:
+					entity.normalVector = helpers.parsePoint(scanner);
+					break;
+				default:
+					helpers.checkCommonEntityProperties(entity, curr, scanner);
+					break;
+			}
+			curr = scanner.next();
+		}
+
+		return entity;
+	}
+}