Polyface Class

A Polyface is an abstract mesh structure (of unspecified implementation) that provides a PolyfaceVisitor to iterate over its facets.

Extends

• GeometryQuery

Extended by

• IndexedPolyface

Methods

Name	Description
constructor(data: PolyfaceData): Polyface Protected	Constructor
createVisitor(numWrap: number): PolyfaceVisitor Abstract	Create and return a visitor for this concrete polyface.
areIndicesValid(indices: number[], indexPositionA: number, indexPositionB: number, data: any, dataLength: number): boolean Static	Check validity of indices into a data array.

Inherited methods

Name	Inherited from	Description
clone(): undefined | GeometryQuery Abstract	GeometryQuery	Return a clone
cloneTransformed(transform: Transform): undefined | GeometryQuery Abstract	GeometryQuery	Return a transformed clone.
dispatchToGeometryHandler(handler: GeometryHandler): any Abstract	GeometryQuery	Double Dispatch call pattern.
extendRange(rangeToExtend: Range3d, transform?: Transform): void Abstract	GeometryQuery	Extend rangeToExtend by the range of this geometry multiplied by the transform.
isAlmostEqual(other: GeometryQuery): boolean	GeometryQuery	Test for exact structure and nearly identical geometry.
isSameGeometryClass(other: GeometryQuery): boolean Abstract	GeometryQuery	Test if (other instanceof this.Type).
range(transform?: Transform, result?: Range3d): Range3d	GeometryQuery	Return the range of the entire GeometryQuery tree.
tryTransformInPlace(transform: Transform): boolean Abstract	GeometryQuery	Attempt to transform in place.
tryTranslateInPlace(dx: number, dy: number0.0, dz: number0.0): boolean	GeometryQuery	Try to move the geometry by dx,dy,dz.
areAlmostEqual(a: GeometryQuery, b: GeometryQuery): boolean Static	GeometryQuery	Apply instance method isAlmostEqual if both are defined.

Properties

Name	Type	Description
data	PolyfaceData	Underlying polyface data.
expectedClosure Accessor	number	Flag indicating if the mesh closure is unknown (0), open sheet (1), closed solid (2).
facetCount Accessor ReadOnly	undefined | number	Returns the number of facets of this polyface.
geometryCategory Readonly	"polyface"	String name for schema properties
isEmpty Accessor Abstract ReadOnly	boolean	Returns true if this polyface has no facets.
twoSided Accessor	boolean	Flag indicating if the mesh display must assume both sides are visible.

Inherited properties

Name	Type	Inherited from	Description
children Accessor ReadOnly	undefined | GeometryQuery[]	GeometryQuery	Return GeometryQuery children for recursive queries. * leaf classes do not need to implement.

Defined in

• polyface/Polyface.ts Line 32