@thi.ng/geom/api/rect.js

Functional, polymorphic API for 2D geometry types & SVG generation

import { add2 } from "@thi.ng/vectors/add";
import { addN2 } from "@thi.ng/vectors/addn";
import { ZERO2 } from "@thi.ng/vectors/api";
import { maddN2 } from "@thi.ng/vectors/maddn";
import { max2 } from "@thi.ng/vectors/max";
import { set2 } from "@thi.ng/vectors/set";
import { __asVec } from "../internal/args.js";
import { __copyAttribs } from "../internal/copy.js";
class Rect {
  constructor(pos = [0, 0], size = 1, attribs) {
    this.pos = pos;
    this.attribs = attribs;
    this.size = max2(null, __asVec(size), ZERO2);
  }
  type = "rect";
  dim = 2;
  size;
  copy() {
    return new Rect(
      set2([], this.pos),
      set2([], this.size),
      __copyAttribs(this.attribs)
    );
  }
  withAttribs(attribs) {
    return new Rect(this.pos, this.size, attribs);
  }
  min() {
    return set2([], this.pos);
  }
  max() {
    return add2([], this.pos, this.size);
  }
  offset(offset) {
    const c = maddN2([], this.size, 0.5, this.pos);
    max2(null, addN2(null, this.size, offset * 2), ZERO2);
    maddN2(this.pos, this.size, -0.5, c);
    return this;
  }
  toHiccup() {
    return [this.type, this.attribs, this.pos, this.size[0], this.size[1]];
  }
}
export {
  Rect
};