TkAstral3D/packages/sdk/lib/dxf/parser/entities/line.ts
2025-10-04 23:36:07 +08:00

41 lines
1.1 KiB
TypeScript

import DxfArrayScanner, { IGroup } from '../DxfArrayScanner';
import * as helpers from '../ParseHelpers'
import IGeometry, { IEntity, IPoint } from './geomtry';
export interface ILineEntity extends IEntity{
vertices: IPoint[];
extrusionDirection: IPoint;
}
export default class Line implements IGeometry{
public ForEntityName= 'LINE' as const;
public parseEntity(scanner: DxfArrayScanner, curr: IGroup) {
const entity = { type: curr.value, vertices: [] as IPoint[] } as ILineEntity;
curr = scanner.next();
while(!scanner.isEOF()) {
if(curr.code === 0) break;
switch(curr.code) {
case 10: // X coordinate of point
entity.vertices.unshift(helpers.parsePoint(scanner));
break;
case 11:
entity.vertices.push(helpers.parsePoint(scanner));
break;
case 210:
entity.extrusionDirection = helpers.parsePoint(scanner);
break;
case 100:
break;
default:
helpers.checkCommonEntityProperties(entity, curr, scanner);
break;
}
curr = scanner.next();
}
return entity;
}
}