Cone Class

A cone with axis along the z axis of a (possibly skewed) local coordinate system.

• In local coordinates, the sections at z=0 and z=1 are circles of radius r0 and r1.
• Either one individually may be zero, but they may not both be zero.
• The stored matrix has unit vectors in the xy columns, and full-length z column.

Extends

• SolidPrimitive

Implements

• UVSurface
• UVSurfaceIsoParametricDistance

Methods

Name	Description
constructor(map: Transform, radiusA: number, radiusB: number, capped: boolean): Cone Protected
clone(): Cone	Return a clone of this Cone.
cloneTransformed(transform: Transform): undefined | Cone	Create a clone and immediately transform the clone.
constantVSection(vFraction: number): undefined | CurveCollection	Return the Arc3d section at vFraction
dispatchToGeometryHandler(handler: GeometryHandler): any	Second step of double dispatch: call handler.handleCone(this)
extendRange(rangeToExtend: Range3d, transform?: Transform): void	Extend rangeToExtend so it includes this Cone instance.
getCenterA(): Point3d	(Property accessor) Return the center point at the base plane
getCenterB(): Point3d	(Property accessor)
getConstructiveFrame(): undefined | Transform	Return a coordinate frame (right handed unit vectors)
getMaxRadius(): number	(Property accessor) return the larger of the base and top plane radii
getRadiusA(): number	(Property accessor) return the radius at the base plane
getRadiusB(): number	(Property accessor) return the radius at the top plane
getVectorX(): Vector3d	(Property accessor) Return the x vector in the local frame
getVectorY(): Vector3d	(Property accessor) Return the y vector in the local frame
isAlmostEqual(other: GeometryQuery): boolean	(Property accessor) Test for nearly equal coordinate data.
isSameGeometryClass(other: any): boolean	(Property accessor) test if other is an instance of Cone
maxIsoParametricDistance(): Vector2d	Directional distance query
strokeConstantVSection(v: number, fixedStrokeCount: number, options: StrokeOptions): LineString3d	return strokes for a cross-section (elliptic arc) at specified fraction v along the axis.
tryTransformInPlace(transform: Transform): boolean	Apply the transform to this cone's locla to world coordinates.
uvFractionToPoint(uFraction: number, vFraction: number, result?: Point3d): Point3d	Evaluate a point on the Cone surfaces, with
uvFractionToPointAndTangents(uFraction: number, vFraction: number, result?: Plane3dByOriginAndVectors): Plane3dByOriginAndVectors	Evaluate a point tangent plane on the Cone surfaces, with
vFractionToRadius(v: number): number	(Property accessor) return the radius at fraction v along the axis
createAxisPoints(centerA: Point3d, centerB: Point3d, radiusA: number, radiusB: number, capped: boolean): undefined | Cone Static	create a cylinder or cone from two endpoints and their radii.
createBaseAndTarget(centerA: Point3d, centerB: Point3d, vectorX: Vector3d, vectorY: Vector3d, radiusA: number, radiusB: number, capped: boolean): Cone Static	create a cylinder or cone from axis start and end with cross section defined by vectors that do not need to be perpendicular to each other or

Inherited methods

Name	Inherited from	Description
range(transform?: Transform, result?: Range3d): Range3d	SolidPrimitive	Return the range of the entire GeometryQuery tree.
tryTranslateInPlace(dx: number, dy: number0.0, dz: number0.0): boolean	SolidPrimitive	Try to move the geometry by dx,dy,dz.
areAlmostEqual(a: GeometryQuery, b: GeometryQuery): boolean Static	SolidPrimitive	Apply instance method isAlmostEqual if both are defined.

Properties

Name	Type	Description
isClosedVolume Accessor ReadOnly	boolean
solidPrimitiveType Readonly	"cone"	String name for schema properties

Inherited properties

Name	Type	Inherited from	Description
_capped Protected	boolean	SolidPrimitive	flag indicating whether cap region is considered closed (i.e.
capped Accessor	boolean	SolidPrimitive	Whether this is a capped solid
children Accessor ReadOnly	undefined | GeometryQuery[]	SolidPrimitive	Return GeometryQuery children for recursive queries. * leaf classes do not need to implement.
geometryCategory Readonly	"solid"	SolidPrimitive	String name for schema properties

Defined in

• solid/Cone.ts Line 34