A MousePickObject lets you add or remove Object to and from an ObjectSet by clicking them with the mouse.

Overview

• A MousePickObject adds Object to the ObjectSet as you click them with the mouse, removing them again when you click them a second time.
• Typically a MousePickObject will share an ObjectSet with one or more MousePickObjects, in order to select which Object are influenced by the MousePickObjects.
• A MousePickObject will provide its own ObjectSet by default.
• Hold down SHIFT while clicking to multi-select.

Example

Clicking Objects to add them to a highlighted ObjectSet

In this example, we view four Objects with a Camera, which we manipulate with a CameraControl.
We also use a MousePickObject to add and remove the Objects to an ObjectSet, to which we're applying a HighlightMousePickObject.

Click on the Objects to select and highlight them - hold down SHIFT to multi-select.

// Create a Viewer
var viewer = new BIMSURFER.Viewer({ element: "myDiv" });

// Create a Camera
var camera = new BIMSURFER.Camera(viewer, {
   eye: [10, 10, -10]
});

// Create a CameraControl
var cameraControl = new BIMSURFER.CameraControl(viewer, {
   camera: camera
});

// Create a Geometry
var geometry = new BIMSURFER.TeapotGeometry(viewer);

// Create some Objects
// Share the Geometry among them

var object1 = new BIMSURFER.Object(viewer, {
   id: "object1",
   type: "IfcRoof",
   geometries: [ geometry ],
   matrix: BIMSURFER.math.translationMat4v([-3, 0, -3])
});

var object2 = new BIMSURFER.Object(viewer, {
   id: "object2",
   type: "IfcDistributionFlowElement",
   geometries: [ geometry ],
   matrix: BIMSURFER.math.translationMat4v([3, 0, -3])
});

var object3 = new BIMSURFER.Object(viewer, {
   id: "object3",
   type: "IfcDistributionFlowElement",
   geometries: [ geometry ],
   matrix: BIMSURFER.math.translationMat4v([-3, 0, 3])
});

var object4 = new BIMSURFER.Object(viewer, {
   id: "object4",
   type: "IfcRoof",
   geometries: [ geometry ],
   matrix: BIMSURFER.math.translationMat4v([3, 0, 3])
});

// Create an ObjectSet
var objectSet = new BIMSURFER.ObjectSet(viewer);

// Apply a highlight MousePickObject to the ObjectSet
var highlightMousePickObject = new BIMSURFER.HighlightMousePickObject(viewer, {
   objectSet: objectSet
});

// Create a MousePickObject
var mousePickObject = new BIMSURFER.MousePickObject(viewer, {

   // We want the 3D World-space coordinates of
   // each location we pick
   rayPick: true
});

// Handle when Object is picked
mousePickObject.on("pick", function(e) {
       alert("Picked: " + JSON.stringify(e));
});

// Handle when nothing is picked
mousePickObject.on("nopick", function(e) {
       alert("Mothing picked");
});