public-fuse/src/view/case/draw/board/editCAD/Geometry/BgImage.js

import VectorType from "../enum/VectorType.js";
import Geometry from "./Geometry";
import { mathUtil } from "../MathUtil.js";
import SelectState from "../enum/SelectState.js";
import { coordinate } from "../Coordinate.js";

export default class BgImage extends Geometry {
  constructor(url, center, vectorId) {
    super();
    this.url = url;
    if (center) {
      this.center = center; //左上角
    } else {
      this.center = {
        x: 80,
        y: 150,
      };
    }

    this.image = null;
    this.width = 540;
    this.height = 390;
    this.scale = 1; //缩放比例

    this.geoType = VectorType.BgImage;
    this.setId(vectorId);
  }

  setImageData(imgData) {
    this.image = imgData;
  }

  setResolution(width, height) {
    this.width = width;
    this.width = height;
  }
  setUrl(url) {
    this.url = url;
  }

  setScale(scale) {
    this.scale = scale;
  }

  isContain(position) {
    let p0 = {
      x: this.center.x,
      y: this.center.y,
    };

    let p1 = {
      x: this.center.x,
      y: this.center.y + this.height * this.scale,
    };

    let p2 = {
      x: this.center.x + this.width * this.scale,
      y: this.center.y + this.height * this.scale,
    };

    let p3 = {
      x: this.center.x + this.width * this.scale,
      y: this.center.y,
    };

    position = coordinate.getScreenXY(position);

    this.points = [];
    this.points.push(p0);
    this.points.push(p1);
    this.points.push(p2);
    this.points.push(p3);
    if (mathUtil.isPointInPoly(position, this.points)) {
      return SelectState.Select;
    } else {
      return null;
    }
  }
}