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@ -1,13 +1,15 @@
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import * as THREE from 'three';
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import { Object3D } from 'three';
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import * as verb from 'verb-nurbs-web';
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import { Object3D, Vector2, Vector3 } from 'three';
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import { Vec2DTo3D } from '../Common/CurveUtils';
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import { Entity } from '../DatabaseServices/Entity';
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import { Line } from '../DatabaseServices/Line';
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import { GripScene } from '../GraphicsSystem/GripScene';
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import { IntersectOption } from '../GraphicsSystem/IntersectWith';
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import { PreViewer } from '../GraphicsSystem/PreViewer';
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import { Viewer } from '../GraphicsSystem/Viewer';
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import { SelectSetBase, SelectType } from './SelectSet';
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/**
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* 矩形选区
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* 如果图形无法选择,那么注意该图形是否调用计算图形的包围球.
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@ -20,7 +22,7 @@ export class SelectBox extends SelectSetBase
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{
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private m_SelectBox: THREE.Box2 = new THREE.Box2();
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private m_RectLines = new Array<verb.core.PolylineData>();
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private m_RectLines: Line[] = [];
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private m_Frustom: THREE.Frustum = new THREE.Frustum();
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private m_bIsPerCamera;
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@ -33,24 +35,22 @@ export class SelectBox extends SelectSetBase
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this.m_SelectBox.setFromPoints([p1, p2]);
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let px1 = this.m_SelectBox.min.toArray();
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let px3 = this.m_SelectBox.max.toArray();
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px1.push(0);
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px3.push(0);
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let px2 = [this.m_SelectBox.max.x, this.m_SelectBox.min.y, 0];
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let px4 = [this.m_SelectBox.min.x, this.m_SelectBox.max.y, 0];
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let px1 = Vec2DTo3D(this.m_SelectBox.min);
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let px3 = Vec2DTo3D(this.m_SelectBox.max);
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let px2 = new Vector3(this.m_SelectBox.max.x, this.m_SelectBox.min.y, 0);
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let px4 = new Vector3(this.m_SelectBox.min.x, this.m_SelectBox.max.y, 0);
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this.m_RectLines.push(new verb.core.PolylineData([px1, px2], [0, 1]));
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this.m_RectLines.push(new verb.core.PolylineData([px2, px3], [0, 1]));
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this.m_RectLines.push(new verb.core.PolylineData([px3, px4], [0, 1]));
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this.m_RectLines.push(new verb.core.PolylineData([px4, px1], [0, 1]));
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this.m_RectLines.push(new Line(px1, px2));
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this.m_RectLines.push(new Line(px2, px3));
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this.m_RectLines.push(new Line(px3, px4));
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this.m_RectLines.push(new Line(px4, px1));
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//init frustom.
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let camera = this.m_Viewer.Camera;
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if (camera instanceof THREE.OrthographicCamera || camera instanceof THREE.PerspectiveCamera)
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{
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let size = this.m_SelectBox.getSize();
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let size = this.m_SelectBox.getSize(new Vector2());
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camera.setViewOffset(view.Width, view.Height, this.m_SelectBox.min.x, this.m_SelectBox.min.y, size.x, size.y);
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camera.updateProjectionMatrix();
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@ -139,7 +139,7 @@ export class SelectBox extends SelectSetBase
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{
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let p1 = screenPts[index1];
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let p2 = screenPts[index2];
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let line = new verb.core.PolylineData([[p1.x, p1.y, 0], [p2.x, p2.y, 0]], [0, 1]);
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let line = new Line(p1.clone(), p2.clone());
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//如果是透视相机,则需要 裁剪算法. 保证线在视图内部
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if (this.m_bIsPerCamera)
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@ -155,19 +155,19 @@ export class SelectBox extends SelectSetBase
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return false;
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else if (!px1InFrusum || !px2InFrusum)
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{
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let intersecPt = nearPlan.intersectLine(new THREE.Line3(px1, px2));
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let intersecPt = nearPlan.intersectLine(new THREE.Line3(px1, px2), new Vector3());
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this.WorldToScreenPoint(intersecPt);
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if (!px1InFrusum)
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line.points[0] = [intersecPt.x, intersecPt.y, 0];
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line.StartPoint = intersecPt;
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else
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line.points[1] = [intersecPt.x, intersecPt.y, 0];
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line.EndPoint = intersecPt;
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}
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}
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for (let l of this.m_RectLines)
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{
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let ins = verb.eval.Intersect.polylines(l, line, 1e-8)
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let ins = l.IntersectWith(line, IntersectOption.OnBothOperands);
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if (ins.length > 0)
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return true;
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}
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@ -186,6 +186,7 @@ export class SelectBox extends SelectSetBase
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this.WorldToScreenPoint(p);
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if (this.ContainerScreenPoint(p))
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return true;
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p.z = 0;
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screenPts.push(p);
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}
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ChenX
7 years ago