123 lines
3.2 KiB
JavaScript
123 lines
3.2 KiB
JavaScript
OV.MeasureTool = class
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{
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constructor ()
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{
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this.viewer = null;
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this.highlightColor = null;
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this.isActive = false;
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this.markers = [];
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}
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Init (viewer, highlightColor)
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{
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this.viewer = viewer;
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this.highlightColor = highlightColor;
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}
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IsActive ()
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{
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return this.isActive;
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}
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SetActive (isActive)
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{
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this.isActive = isActive;
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if (!this.isActive) {
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this.Clear ();
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}
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}
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Click (mouseCoordinates)
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{
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let intersection = this.viewer.GetMeshIntersectionUnderMouse (mouseCoordinates);
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if (intersection === null) {
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this.Clear ();
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return;
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}
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if (this.markers.length === 2) {
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this.Clear ();
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}
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this.AddMarker (intersection);
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}
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GetMarkerCount ()
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{
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return this.markers.length;
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}
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AddMarker (intersection)
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{
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this.markers.push (intersection);
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this.GenerateMarker (intersection);
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}
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Calculate ()
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{
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if (this.markers.length !== 2) {
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return null;
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}
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const a = this.markers[0];
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const b = this.markers[1];
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let result = {
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pointsDistance : null,
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parallelFacesDistance : null,
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facesAngle : null
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};
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const aNormal = this.GetFaceWorldNormal (a);
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const bNormal = this.GetFaceWorldNormal (b);
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result.pointsDistance = a.point.distanceTo (b.point);
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result.facesAngle = aNormal.angleTo (bNormal);
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if (OV.IsEqualEps (result.facesAngle, 0.0, OV.BigEps) || OV.IsEqualEps (result.facesAngle, Math.PI, OV.BigEps)) {
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let aPlane = new THREE.Plane ().setFromNormalAndCoplanarPoint (aNormal, a.point);
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result.parallelFacesDistance = Math.abs (aPlane.distanceToPoint (b.point));
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}
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return result;
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}
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Clear ()
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{
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this.viewer.ClearExtra ();
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this.markers = [];
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}
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GenerateMarker (intersection)
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{
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let boundingSphere = this.viewer.GetBoundingSphere ((meshUserData) => {
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return true;
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});
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let coneHeight = boundingSphere.radius / 5.0;
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let coneRadius = coneHeight / 2.0;
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let coneGeometry = new THREE.ConeGeometry (coneRadius, coneHeight, 32);
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coneGeometry.translate (0.0, -coneHeight / 2.0, 0.0);
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coneGeometry.rotateX (-Math.PI / 2);
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let coneMaterial = this.viewer.CreateHighlightMaterial (this.highlightColor);
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coneMaterial.opacity = 0.6;
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coneMaterial.transparent = true;
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let cone = new THREE.Mesh (coneGeometry, coneMaterial);
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let faceNormal = this.GetFaceWorldNormal (intersection);
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cone.lookAt (faceNormal);
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cone.position.set (intersection.point.x, intersection.point.y, intersection.point.z);
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this.viewer.AddExtraObject (cone);
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}
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GetFaceWorldNormal (intersection)
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{
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let normalMatrix = new THREE.Matrix4 ();
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intersection.object.updateWorldMatrix (true, false);
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normalMatrix.extractRotation (intersection.object.matrixWorld);
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let faceNormal = intersection.face.normal.clone ();
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faceNormal.applyMatrix4 (normalMatrix);
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return faceNormal;
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}
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};
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