97 lines
4.1 KiB
TypeScript
97 lines
4.1 KiB
TypeScript
import DxfArrayScanner, {IGroup} from '../DxfArrayScanner';
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import * as helpers from '../ParseHelpers'
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import IGeometry, {IEntity, IPoint} from './geomtry';
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export interface ITextEntity extends IEntity {
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startPoint: IPoint;
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endPoint: IPoint;
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textHeight: number;
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xScale: number;
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rotation: number;
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obliqueAngle: number;
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text: string;
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fontName: string;
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thickness: number;
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halign: number;
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valign: number;
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flags: number;
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}
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export default class Text implements IGeometry {
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public ForEntityName = 'TEXT' as const;
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public parseEntity(scanner: DxfArrayScanner, curr: IGroup) {
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const entity = {type: curr.value} as ITextEntity;
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curr = scanner.next();
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while (!scanner.isEOF()) {
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if (curr.code === 0) break;
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switch (curr.code) {
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case 1:
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// 字符串本身
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entity.text = curr.value as string;
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break;
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case 7: // 字体名称/文字样式名（可选；默认值 = 标准）
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entity.fontName = curr.value as string;
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break;
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case 10:
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// 第一对齐点（在 OCS 中） DXF：X 值；APP：三维点
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entity.startPoint = helpers.parsePoint(scanner);
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break;
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case 11:
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// 第二对齐点（在 OCS 中）（可选）;
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// DXF：X 值；APP：三维点;
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// 只有当 72 或 73 组的值非零时，该值才有意义（如果对正不是基线对正/左对正）
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entity.endPoint = helpers.parsePoint(scanner);
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break;
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case 39:
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// 厚度（可选；默认值 = 0）
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entity.thickness = curr.value as number;
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break;
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case 40:
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// 文字高度
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entity.textHeight = curr.value as number;
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break;
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case 41:
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// 相对 X 比例因子 — 宽度（可选；默认值 = 1）
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// 使用拟合类型的文字时，该值也将进行调整。
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entity.xScale = curr.value as number;
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break;
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case 50:
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// 文字旋转角度（可选；默认值 = 0）
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entity.rotation = curr.value as number;
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break;
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case 51:
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// 倾斜角度（可选；默认值 = 0）
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entity.obliqueAngle = curr.value as number;
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break;
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case 71:
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// 文字生成标志（可选，仅适用于 SHX 文字）：
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// 2 = 文字反向（在 X 轴方向镜像）
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// 4 = 文字倒置（在 Y 轴方向镜像）
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entity.flags = curr.value as number;
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break;
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// NOTE: 72和73没有11就没有意义(第二个对齐点)
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case 72:
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// 文字水平对正类型（可选；默认值 = 0）整数代码（非按位编码）
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// 0 = 左对正；1 = 居中对正；2 = 右对正
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// 3 = 对齐（如果垂直对齐 = 0）
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// 4 = 中间（如果垂直对齐 = 0）
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// 5 = 拟合（如果垂直对齐 = 0）
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entity.halign = curr.value as number;
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break;
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case 73:
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// 文字垂直对正类型（可选；默认值 = 0）整数代码（不是按位编码）
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// 0 = 基线对正；1 = 底端对正；2 = 居中对正；3 = 顶端对正
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entity.valign = curr.value as number;
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break;
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default:
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// check common entity attributes
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helpers.checkCommonEntityProperties(entity, curr, scanner);
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break;
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}
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curr = scanner.next();
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}
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return entity;
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}
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}
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