Clipping Planes- Terrain & optimizations, and/or option, plane primitives, edge highlighting #5996
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| <!DOCTYPE html> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="utf-8"> | ||
| <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1"> <!-- Use Chrome Frame in IE --> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"> | ||
| <meta name="description" content="User-defined clipping planes applied to a batched 3D Tileset, point cloud, and model."> | ||
| <meta name="cesium-sandcastle-labels" content="Showcases, 3D Tiles"> | ||
| <title>Cesium Demo</title> | ||
| <script type="text/javascript" src="../Sandcastle-header.js"></script> | ||
| <script type="text/javascript" src="../../../ThirdParty/requirejs-2.1.20/require.js"></script> | ||
| <script type="text/javascript"> | ||
| require.config({ | ||
| baseUrl : '../../../Source', | ||
| waitSeconds : 60 | ||
| }); | ||
| </script> | ||
| </head> | ||
| <body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html"> | ||
| <style> | ||
| @import url(../templates/bucket.css); | ||
| #toolbar { | ||
| background: rgba(42, 42, 42, 0.8); | ||
| padding: 4px; | ||
| border-radius: 4px; | ||
| } | ||
| #toolbar input { | ||
| vertical-align: middle; | ||
| padding-top: 2px; | ||
| padding-bottom: 2px; | ||
| } | ||
| #toolbar .header { | ||
| font-weight: bold; | ||
| } | ||
| </style> | ||
| <div id="cesiumContainer" class="fullSize"></div> | ||
| <div id="loadingOverlay"><h1>Loading...</h1></div> | ||
| <div id="toolbar"> | ||
| <select data-bind="options: exampleTypes, value: currentExampleType"></select> | ||
| <input type="checkbox" value="false" data-bind="checked: debugBoundingVolumesEnabled, valueUpdate: 'input'"> Show bounding volume | ||
| <input type="checkbox" value="true" data-bind="checked: edgeStylingEnabled, valueUpdate: 'input'"> Enable edge styling | ||
| </div> | ||
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| <script id="cesium_sandcastle_script"> | ||
| function startup(Cesium) { | ||
| 'use strict'; | ||
| //Sandcastle_Begin | ||
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| // Add a clipping plane, a plane geometry to show the representation of the | ||
| // plane, and control the magnitude of the plane distance with the mouse. | ||
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| var viewer = new Cesium.Viewer('cesiumContainer', { | ||
| infoBox: false, | ||
| selectionIndicator: false | ||
| }); | ||
| var scene = viewer.scene; | ||
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| var clipObjects = ['BIM', 'Point Cloud', 'Instanced', 'Model',]; | ||
| var viewModel = { | ||
| debugBoundingVolumesEnabled : false, | ||
| edgeStylingEnabled : true, | ||
| exampleTypes : clipObjects, | ||
| currentExampleType : clipObjects[0] | ||
| }; | ||
|
There was a problem hiding this comment. Maybe its also worth adding a checkbox for toggling the edge coloring. |
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| var targetY = 0.0; | ||
| var planeEntities = []; | ||
| var selectedPlane; | ||
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| // Select plane when mouse down | ||
| var downHandler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas); | ||
| downHandler.setInputAction(function(movement) { | ||
| var pickedObject = scene.pick(movement.position); | ||
| if (Cesium.defined(pickedObject) && | ||
| Cesium.defined(pickedObject.id) && | ||
| Cesium.defined(pickedObject.id.plane)) { | ||
| selectedPlane = pickedObject.id.plane; | ||
| selectedPlane.material = Cesium.Color.WHITE.withAlpha(0.05); | ||
| selectedPlane.outlineColor = Cesium.Color.WHITE; | ||
| scene.screenSpaceCameraController.enableInputs = false; | ||
| } | ||
| }, Cesium.ScreenSpaceEventType.LEFT_DOWN); | ||
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| // Release plane on mouse up | ||
| var upHandler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas); | ||
| upHandler.setInputAction(function() { | ||
| if (Cesium.defined(selectedPlane)) { | ||
| selectedPlane.material = Cesium.Color.WHITE.withAlpha(0.1); | ||
| selectedPlane.outlineColor = Cesium.Color.WHITE; | ||
| selectedPlane = undefined; | ||
| } | ||
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| scene.screenSpaceCameraController.enableInputs = true; | ||
| }, Cesium.ScreenSpaceEventType.LEFT_UP); | ||
|
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| // Update plane on mouse move | ||
| var moveHandler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas); | ||
| moveHandler.setInputAction(function(movement) { | ||
| if (Cesium.defined(selectedPlane)) { | ||
| var deltaY = movement.endPosition.y - movement.startPosition.y; | ||
| targetY += deltaY; | ||
| } | ||
| }, Cesium.ScreenSpaceEventType.MOUSE_MOVE); | ||
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| var scratchPlane = new Cesium.Plane(Cesium.Cartesian3.UNIT_X, 0.0); | ||
| function createPlaneUpdateFunction(plane, transform) { | ||
| return function () { | ||
| plane.distance = Cesium.Math.lerp(plane.distance, targetY, 0.1); | ||
|
There was a problem hiding this comment. I don't think There was a problem hiding this comment. I'll remove it. It is there to make the plane movement smooth since reflecting the mouse movement directly can be shaky. |
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| var transformedPlane = Cesium.Plane.transform(plane, transform, scratchPlane); | ||
| transformedPlane.distance = -transformedPlane.distance; | ||
| return transformedPlane; | ||
| }; | ||
| } | ||
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| var tileset; | ||
| function loadTileset(url) { | ||
| var clippingPlanes = [ | ||
| new Cesium.Plane(new Cesium.Cartesian3(0.0, 0.0, -1.0), -100.0) | ||
| ]; | ||
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| tileset = viewer.scene.primitives.add(new Cesium.Cesium3DTileset({ | ||
| url : url, | ||
| clippingPlanes : new Cesium.ClippingPlanesCollection({ | ||
| planes : clippingPlanes, | ||
| edgeWidth : viewModel.edgeStylingEnabled ? 1.0 : 0.0 | ||
| }) | ||
| })); | ||
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| tileset.readyPromise.then(function() { | ||
| var boundingSphere = tileset.boundingSphere; | ||
| var radius = boundingSphere.radius; | ||
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| viewer.camera.viewBoundingSphere(boundingSphere, new Cesium.HeadingPitchRange(0.5, -0.2, radius * 4.0)); | ||
| viewer.camera.lookAtTransform(Cesium.Matrix4.IDENTITY); | ||
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| for (var i = 0; i < clippingPlanes.length; ++i) { | ||
| var plane = clippingPlanes[i]; | ||
| var planeEntity = viewer.entities.add({ | ||
| position : boundingSphere.center, | ||
| plane : { | ||
| dimensions : new Cesium.Cartesian2(radius * 2.5, radius * 2.5), | ||
| material : Cesium.Color.WHITE.withAlpha(0.1), | ||
| plane : new Cesium.CallbackProperty(createPlaneUpdateFunction(plane, tileset.modelMatrix), false), | ||
| outline : true, | ||
| outlineColor : Cesium.Color.WHITE | ||
| } | ||
| }); | ||
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| planeEntities.push(planeEntity); | ||
| } | ||
| }).otherwise(function(error) { | ||
| throw(error); | ||
| }); | ||
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| tileset.debugShowBoundingVolume = viewModel.debugBoundingVolumesEnabled; | ||
| } | ||
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| var modelEntityClippingPlanes; | ||
| function loadModel(url) { | ||
| var clippingPlanes = [ | ||
| new Cesium.Plane(new Cesium.Cartesian3(0.0, 0.0, -1.0), -100.0) | ||
| ]; | ||
|
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| modelEntityClippingPlanes = new Cesium.ClippingPlanesCollection({ | ||
| planes : clippingPlanes, | ||
| edgeWidth : viewModel.edgeStylingEnabled ? 1.0 : 0.0 | ||
| }); | ||
|
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| function updateClippingPlanes() { | ||
| return modelEntityClippingPlanes; | ||
| } | ||
|
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| var position = Cesium.Cartesian3.fromDegrees(-123.0744619, 44.0503706, 100.0); | ||
| var heading = Cesium.Math.toRadians(135.0); | ||
| var pitch = 0.0; | ||
| var roll = 0.0; | ||
| var hpr = new Cesium.HeadingPitchRoll(heading, pitch, roll); | ||
| var orientation = Cesium.Transforms.headingPitchRollQuaternion(position, hpr); | ||
| var entity = viewer.entities.add({ | ||
| name : url, | ||
| position : position, | ||
| orientation : orientation, | ||
| model : { | ||
| uri : url, | ||
| scale : 8, | ||
| minimumPixelSize : 100.0, | ||
| clippingPlanes : new Cesium.CallbackProperty(updateClippingPlanes, false) | ||
| } | ||
| }); | ||
|
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| viewer.trackedEntity = entity; | ||
|
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| for (var i = 0; i < clippingPlanes.length; ++i) { | ||
| var plane = clippingPlanes[i]; | ||
| var planeEntity = viewer.entities.add({ | ||
| position : position, | ||
| plane : { | ||
| dimensions : new Cesium.Cartesian2(300.0, 300.0), | ||
| material : Cesium.Color.WHITE.withAlpha(0.1), | ||
| plane : new Cesium.CallbackProperty(createPlaneUpdateFunction(plane, Cesium.Matrix4.IDENTITY), false), | ||
| outline : true, | ||
| outlineColor : Cesium.Color.WHITE | ||
| } | ||
| }); | ||
|
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| planeEntities.push(planeEntity); | ||
| } | ||
| } | ||
|
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| // Power Plant design model provided by Bentley Systems | ||
| var bimUrl = 'https://beta.cesium.com/api/assets/1459?access_token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIzNjUyM2I5Yy01YmRhLTQ0MjktOGI0Zi02MDdmYzBjMmY0MjYiLCJpZCI6NDQsImFzc2V0cyI6WzE0NTldLCJpYXQiOjE0OTkyNjQ3ODF9.SW_rwY-ic0TwQBeiweXNqFyywoxnnUBtcVjeCmDGef4'; | ||
| var pointCloudUrl = 'https://beta.cesium.com/api/assets/1460?access_token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIyMzk2YzJiOS1jZGFmLTRlZmYtYmQ4MS00NTA3NjEwMzViZTkiLCJpZCI6NDQsImFzc2V0cyI6WzE0NjBdLCJpYXQiOjE0OTkyNjQ3NTV9.oWjvN52CRQ-dk3xtvD4e8ZnOHZhoWSpJLlw115mbQJM'; | ||
| var instancedUrl = '../../../Specs/Data/Cesium3DTiles/Instanced/InstancedOrientation/'; | ||
| var modelUrl = '../../SampleData/models/CesiumAir/Cesium_Air.glb'; | ||
|
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| loadTileset(bimUrl); | ||
|
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| // Track and create the bindings for the view model | ||
| var toolbar = document.getElementById('toolbar'); | ||
| Cesium.knockout.track(viewModel); | ||
| Cesium.knockout.applyBindings(viewModel, toolbar); | ||
|
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| Cesium.knockout.getObservable(viewModel, 'currentExampleType').subscribe(function(newValue) { | ||
| reset(); | ||
|
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| if (newValue === clipObjects[0]) { | ||
| loadTileset(bimUrl); | ||
| } else if (newValue === clipObjects[1]) { | ||
| loadTileset(pointCloudUrl); | ||
| tileset.readyPromise.then(function () { | ||
| tileset.clippingPlanes.modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(tileset.boundingSphere.center); | ||
| }); | ||
| } else if (newValue === clipObjects[2]) { | ||
| loadTileset(instancedUrl); | ||
| tileset.readyPromise.then(function () { | ||
| tileset.clippingPlanes.modelMatrix = Cesium.Transforms.eastNorthUpToFixedFrame(tileset.boundingSphere.center); | ||
| }); | ||
| } else { | ||
| loadModel(modelUrl); | ||
| } | ||
| }); | ||
|
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| Cesium.knockout.getObservable(viewModel, 'debugBoundingVolumesEnabled').subscribe(function(value) { | ||
| if (Cesium.defined(tileset)) { | ||
| tileset.debugShowBoundingVolume = value; | ||
| } | ||
| }); | ||
|
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| Cesium.knockout.getObservable(viewModel, 'edgeStylingEnabled').subscribe(function(value) { | ||
| var edgeWidth = value ? 1.0 : 0.0; | ||
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| if (Cesium.defined(tileset)) { | ||
| tileset.clippingPlanes.edgeWidth = edgeWidth; | ||
| } | ||
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| if (Cesium.defined(modelEntityClippingPlanes)) { | ||
| modelEntityClippingPlanes.edgeWidth = edgeWidth; | ||
| } | ||
| }); | ||
|
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| function reset() { | ||
| viewer.entities.removeAll(); | ||
| viewer.scene.primitives.removeAll(); | ||
| planeEntities = []; | ||
| targetY = 0.0; | ||
| } | ||
|
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| //Sandcastle_End | ||
| Sandcastle.finishedLoading(); | ||
| } | ||
| if (typeof Cesium !== "undefined") { | ||
| startup(Cesium); | ||
| } else if (typeof require === "function") { | ||
| require(["Cesium"], startup); | ||
| } | ||
| </script> | ||
| </body> | ||
| </html> | ||
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Maybe add a short comment at the top that says in this demo the clipping plane is controlled with the mouse.