mirror of https://gitee.com/cf-fz/WebCAD.git
cx
7 years ago
parent
77f4e9bdd7
commit
242bac13b8
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//相机控制
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import * as THREE from "three";
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import { Viewer } from '../GraphicsSystem/Viewer';
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import { ed, MouseMove } from '../ApplicationServices/Application';
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import { PlaneExt } from '../Geometry/Plane';
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import { Line3 } from 'three';
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//控制类型
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enum CameraControlsEnabled
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{
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Rotate = 1,
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Zoom = 2,
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Pan = 4,
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}
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//控制状态
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enum State
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{
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Null = 0, Pan = 1, Rotate = 2, Scale = 3
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}
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enum ButtonKey
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{
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Left = 0,
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Middle = 1,
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Right = 2,
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}
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export class CameraControls
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{
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m_domElement: HTMLElement;//HTMLDocument
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m_window: Window;
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//起始点击.
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m_StartChickPoint: THREE.Vector3 = new THREE.Vector3();
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m_EndChickPoint: THREE.Vector3 = new THREE.Vector3();
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m_bKeyCtrlIsDown: boolean;
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//状态
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m_State: State = State.Null;
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m_SelectIng: boolean = false;
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m_Viewer: Viewer;
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constructor(viewer: Viewer, domElement?: HTMLElement, docWindow?: Window)
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{
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this.m_Viewer = viewer;
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this.m_domElement = domElement;
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if (docWindow)
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{
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this.m_window = docWindow;
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}
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this.RegisterEvent();
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}
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RegisterEvent()
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{
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if (this.m_domElement)
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{
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this.m_domElement.addEventListener("mousedown", this.onMouseDown, false)
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this.m_domElement.addEventListener("mousemove", this.onMouseMove, false)
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this.m_domElement.addEventListener("mouseup", this.onMouseUp, false)
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window.addEventListener("keydown", this.onKeyDown, false);
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window.addEventListener("keyup", this.onKeyUp, false);
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this.m_domElement.addEventListener('wheel', this.onMouseWheel, false);
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}
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}
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//鼠标
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onMouseDown = (event: MouseEvent) =>
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{
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event.preventDefault();
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let key: ButtonKey = event.button;
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this.m_StartChickPoint.set(event.offsetX, event.offsetY, 0);
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switch (key)
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{
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case ButtonKey.Left:
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{
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if (!this.m_SelectIng)
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{
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ed.m_SelectCss.SetStart(event.clientX, event.clientY)
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ed.m_SelectCss.SetEnd(event.clientX, event.clientY)
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ed.m_SelectCss.Show()
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}
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else
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{
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ed.m_SelectCss.Hide()
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// let subVec = new THREE.Vector3(event.clientX - event.offsetX, event.clientY - event.offsetY, 0)
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// let startPt = new THREE.Vector3(Math.min(ed.m_SelectCss.start.x, ed.m_SelectCss.end.x),
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// Math.max(ed.m_SelectCss.start.y, ed.m_SelectCss.end.y),
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// 0
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// )
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// let endPt = new THREE.Vector3(Math.max(ed.m_SelectCss.start.x, ed.m_SelectCss.end.x),
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// Math.min(ed.m_SelectCss.start.y, ed.m_SelectCss.end.y),
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// 0
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// )
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// startPt.sub(subVec)
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// endPt.sub(subVec)
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// this.m_Viewer.ScreenToWorld(startPt)
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// this.m_Viewer.ScreenToWorld(endPt)
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// ed.SelectWindow(startPt, endPt)
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// let line = new Line(startPt, endPt)
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// db.appendEntity(line)
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}
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this.m_SelectIng = !this.m_SelectIng;
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break;
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}
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case ButtonKey.Middle:
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{
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if (this["Shift"])
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{
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this.m_State = State.Rotate;
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}
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else
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{
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this.m_State = State.Pan;
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}
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break;
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}
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case ButtonKey.Right:
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{
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break;
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}
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}
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}
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onMouseUp = (event: MouseEvent) =>
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{
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event.preventDefault();
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this.m_State = State.Null;
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}
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onMouseMove = (event: MouseEvent) =>
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{
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event.preventDefault();
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this.m_EndChickPoint.set(event.offsetX, event.offsetY, 0);
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let wpt = this.m_EndChickPoint.clone();
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this.m_Viewer.ScreenToWorld(wpt);
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let plan = new PlaneExt(new THREE.Vector3(0, 0, 1));
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let rs = new THREE.Vector3();
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plan.intersectLine(new Line3(wpt, wpt.clone().sub(this.m_Viewer.m_Direction)), rs, true);
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//Send
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// UiManage.setMouseCoord(wpt);
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MouseMove(this.m_EndChickPoint)
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if (this.m_SelectIng)
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{
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ed.m_SelectCss.SetEnd(event.clientX, event.clientY)
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}
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let changeVec: THREE.Vector3 = new THREE.Vector3();
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changeVec.subVectors(this.m_EndChickPoint, this.m_StartChickPoint);
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this.m_StartChickPoint.copy(this.m_EndChickPoint);
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if (this["Shift"] && this.m_State == State.Rotate)
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{
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this.m_Viewer.Rotate(changeVec);
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}
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switch (this.m_State)
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{
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case State.Pan:
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{
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this.m_Viewer.Pan(changeVec);
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break;
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}
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case State.Rotate:
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{
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break;
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}
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case State.Scale:
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{
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break;
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}
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}
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}
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onMouseWheel = (event: WheelEvent) =>
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{
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event.preventDefault();
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event.stopPropagation();
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let pt = new THREE.Vector3();
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pt.set(event.offsetX, event.offsetY, 0);
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this.m_Viewer.ScreenToWorld(pt);
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if (event.deltaY < 0)
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{
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this.m_Viewer.Zoom(0.6, pt);
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} else if (event.deltaY > 0)
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{
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this.m_Viewer.Zoom(1.4, pt);
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}
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}
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//按键
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onKeyDown = (event: KeyboardEvent) =>
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{
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this[event.key] = true;
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}
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onKeyUp = (event: KeyboardEvent) =>
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{
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this[event.key] = false;
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}
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}
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