new BoundingSphere(center, radius)
Constructs a new bounding sphere with the given values.
Parameters:
Name | Type | Default | Description |
---|---|---|---|
center |
Vector3 | The center position of the bounding sphere. |
|
radius |
Number | 0 | The radius of the bounding sphere. |
Members
-
center :Vector3
-
The center position of the bounding sphere.
-
radius :Number
-
The radius of the bounding sphere.
Methods
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applyMatrix4(matrix) → {BoundingSphere}
-
Transforms this bounding sphere with the given 4x4 transformation matrix.
Parameters:
Name Type Description matrix
Matrix4 The 4x4 transformation matrix.
-
clampPoint(point, result) → {Vector3}
-
Ensures the given point is inside this bounding sphere and stores the result in the given vector.
Parameters:
Name Type Description point
Vector3 A point in 3D space.
result
Vector3 The result vector.
-
clone() → {BoundingSphere}
-
Creates a new bounding sphere and copies all values from this bounding sphere.
-
containsPoint(point) → {Boolean}
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Returns true if the given point is inside this bounding sphere.
Parameters:
Name Type Description point
Vector3 A point in 3D space.
Returns:
Boolean -The result of the containments test.
-
copy(sphere) → {BoundingSphere}
-
Copies all values from the given bounding sphere to this bounding sphere.
Parameters:
Name Type Description sphere
BoundingSphere The bounding sphere to copy.
-
equals(sphere) → {Boolean}
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Returns true if the given bounding sphere is deep equal with this bounding sphere.
Parameters:
Name Type Description sphere
BoundingSphere The bounding sphere to test.
Returns:
Boolean -The result of the equality test.
-
fromJSON(json) → {BoundingSphere}
-
Restores this instance from the given JSON object.
Parameters:
Name Type Description json
Object The JSON object.
-
fromPoints(points) → {BoundingSphere}
-
Computes a bounding sphere that encloses the given set of points.
Parameters:
Name Type Description points
Array.<Vector3> An array of 3D vectors representing points in 3D space.
-
getNormalFromSurfacePoint(point, result) → {Vector3}
-
Returns the normal for a given point on this bounding sphere's surface.
Parameters:
Name Type Description point
Vector3 The point on the surface
result
Vector3 The result vector.
-
intersectsBoundingSphere(sphere) → {Boolean}
-
Returns true if the given bounding sphere intersects this bounding sphere.
Parameters:
Name Type Description sphere
BoundingSphere The bounding sphere to test.
Returns:
Boolean -The result of the intersection test.
-
intersectsPlane(plane) → {Boolean}
-
Returns true if the given plane intersects this bounding sphere.
Reference: Testing Sphere Against Plane in Real-Time Collision Detection by Christer Ericson (chapter 5.2.2)
Parameters:
Name Type Description plane
Plane The plane to test.
Returns:
Boolean -The result of the intersection test.
-
set(center, radius) → {BoundingSphere}
-
Sets the given values to this bounding sphere.
Parameters:
Name Type Description center
Vector3 The center position of the bounding sphere.
radius
Number The radius of the bounding sphere.
-
toJSON() → {Object}
-
Transforms this instance into a JSON object.
Returns:
Object -The JSON object.