| faces points |
points _ (0 to: 35) collect:[:i|
(B3DRotation angle: i*5 axis: 0@0@1) asMatrix4x4 localPointToGlobal: (20@0@0)].
points _ points collect:[:v3| v3 x @ v3 y].
points _ {300@196. 299@205. 297@210. 296@212}.
faces _ PoohTriangle basicNew elevateFan: points to: 246@158@74 steps: 8.
faces _ B3DSimpleMesh withAll: faces.
(B3DSceneExplorerMorph new openInWorld) scene withGeometry: faces asIndexedMesh.

	elevation
	elevateConnect:with:into: elevateFan:to:steps: elevateFrom:to:steps: elevateJunction: elevateJunctionEdge:height:steps: elevateSleeve: elevateSpine: elevateTerminal: elevationHeight

	enumeration
	do: validFacesDo:

	spine
	buildTerminalFan oppositeSpineEdgeOf: recomputeType

	testing
	isJunction isJunction: isSleeve isSleeve: isTerminal isTerminal: isValid isValid:

	accessing	top
	center
	e1
	e1:e2:e3:
	e2
	e3
	flags
	flags:
	next
	next:

	elevation	top
	elevateConnect:with:into:
	elevateFan:to:steps: Elevate the given edge of a junction
	elevateFrom:to:steps:
	elevateJunction:
	elevateJunctionEdge:height:steps: Elevate the given edge of a junction
	elevateSleeve:
	elevateSpine: Elevate the receiver's spine
	elevateTerminal:
	elevationHeight Compute the elevation height of the receiver

	enumeration	top
	do:
	validFacesDo:

	spine	top
	buildTerminalFan
	oppositeSpineEdgeOf:
	recomputeType

	testing	top
	isJunction
	isJunction:
	isSleeve
	isSleeve:
	isTerminal
	isTerminal:
	isValid
	isValid: