@realsee/dnalogel
Version:
73 lines (72 loc) • 3.1 kB
JavaScript
var b = Object.defineProperty;
var y = Object.getOwnPropertySymbols;
var A = Object.prototype.hasOwnProperty, w = Object.prototype.propertyIsEnumerable;
var g = (o, t, e) => t in o ? b(o, t, { enumerable: !0, configurable: !0, writable: !0, value: e }) : o[t] = e, m = (o, t) => {
for (var e in t || (t = {}))
A.call(t, e) && g(o, e, t[e]);
if (y)
for (var e of y(t))
w.call(t, e) && g(o, e, t[e]);
return o;
};
var p = (o, t, e) => (g(o, typeof t != "symbol" ? t + "" : t, e), e);
import { RENDER_ORDER as M } from "../Constants/RenderOrder.js";
import * as u from "three";
function x(o, t) {
let e = 10, r = 10;
const i = o.isPerspectiveCamera, l = o.isOrthographicCamera;
if (i) {
const n = o, f = n.position.distanceTo(t), L = n.fov * Math.PI / 180;
r = 2 * Math.tan(L / 2) * f, e = r * n.aspect;
} else if (l) {
const n = o;
e = Math.abs(n.right - n.left), r = Math.abs(n.top - n.bottom);
}
const c = Math.sqrt(e * e + r * r), s = c * 0.8, a = Math.min(e, r) * 0.25, d = c * 1.2;
return Math.max(a, Math.min(s, d));
}
class v {
constructor(t, e, r) {
p(this, "camera");
p(this, "container");
p(this, "defaults");
this.camera = t, this.container = e, this.defaults = m({}, r || {});
}
/** 创建无限长直线（Line + LineBasicMaterial），穿过整个平面 */
createSolidLine(t, e, r) {
const i = m(m({ color: 16777215, renderOrder: M.DRAG_GUIDE_LINE }, this.defaults), r || {}), l = e.clone().normalize(), c = this.computeInfiniteLineLength(t), s = t.clone().add(l.clone().multiplyScalar(-c)), a = t.clone().add(l.clone().multiplyScalar(c)), d = new Float32Array([s.x, s.y, s.z, a.x, a.y, a.z]), h = new u.BufferGeometry();
h.setAttribute("position", new u.BufferAttribute(d, 3));
const n = new u.LineBasicMaterial({
color: i.color,
depthTest: !1,
depthWrite: !1,
transparent: !0,
opacity: 0.65
}), f = new u.Line(h, n);
return f.renderOrder = i.renderOrder, f;
}
/** 更新已创建的直线，使其始终穿过整个平面 */
updateSolidLine(t, e, r, i) {
const l = r.clone().normalize(), c = this.computeInfiniteLineLength(e), s = e.clone().add(l.clone().multiplyScalar(-c)), a = e.clone().add(l.clone().multiplyScalar(c)), d = new Float32Array([s.x, s.y, s.z, a.x, a.y, a.z]), h = t.geometry, n = h.getAttribute("position");
n && n.itemSize === 3 && n.array.length === d.length ? (n.array.set(d), n.needsUpdate = !0) : h.setAttribute("position", new u.BufferAttribute(d, 3)), (i == null ? void 0 : i.color) !== void 0 && t.material.color.setHex(i.color);
}
/** 计算"无限"直线的长度，确保穿过整个可视区域 */
computeInfiniteLineLength(t) {
return x(this.camera, t) * 10;
}
/** 释放直线的几何与材质 */
dispose(t) {
if (!t)
return;
t.geometry.dispose();
const e = t.material;
Array.isArray(e) ? e.forEach((r) => r.dispose()) : e.dispose();
}
/** 更新默认配置 */
updateDefaults(t) {
this.defaults = m(m({}, this.defaults), t);
}
}
export {
v as SolidGuideLine
};