Point3dArray Class
The Point3dArray class contains static methods that act on arrays of 3d points.
Methods
| Name | Description | |
|---|---|---|
| centroid(points: IndexedXYZCollection, result?: Point3d): Point3d Static | return simple average of all coordinates. | |
| cloneDeepJSONNumberArrays(data: MultiLineStringDataVariant): any[] Static | return similarly-structured array, array of arrays, etc, with the lowest level point data specifically structured as arrays of 3 numbers [1,2,3] |
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| cloneDeepXYZPoint3dArrays(data: MultiLineStringDataVariant): any[] Static | return similarly-structured array, array of arrays, etc, with the lowest level point data specifically structured as Point3d. |
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| clonePoint2dArray(data: XYAndZ[]): Point2d[] Static | Return an array containing Point2d with xy parts of each Point3d | |
| clonePoint3dArray(data: XYAndZ[]): Point3d[] Static | Return an array containing clones of the Point3d data[] | |
| cloneWithMaxEdgeLength(points: Point3d[], maxEdgeLength: number): Point3d[] Static | clone points in the input array, inserting points within each edge to limit edge length. | |
| closestPointIndex(data: XYAndZ[], spacePoint: XYAndZ): number Static | Return the index of the closest point in the array (full xyz) | |
| computeConvexHullXY(points: Point3d[], hullPoints: Point3d[], insidePoints: Point3d[], addClosurePoint: boolean = false): void Static | Computes the hull of the XY projection of points. | |
| createRange(data: MultiLineStringDataVariant): Range3d Static | Point3dArray.createRange(data) is deprecated. |
Deprecated |
| evaluateTrilinearDerivativeTransform(points: Point3d[], u: number, v: number, w: number, result?: Transform): Transform Static | Compute a point and derivatives wrt uvw by trilinear mapping. | |
| evaluateTrilinearPoint(points: Point3d[], u: number, v: number, w: number, result?: Point3d): Point3d Static | Compute a point by trilinear mapping. | |
| evaluateTrilinearWeights(weights: Float64Array, u0: number, u1: number, v0: number, v1: number, w0: number, w1: number): void Static | Compute the 8 weights of trilinear mapping By appropriate choice of weights, this can be used for both point and derivative mappings. |
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| indexOfMostDistantPoint(points: Point3d[], spacePoint: XYZ, farVector: Vector3d): number | undefined Static | Return the index of the point most distant from spacePoint | |
| indexOfPointWithMaxCrossProductMagnitude(points: Point3d[], spacePoint: Point3d, vector: Vector3d, farVector: Vector3d): number | undefined Static | return the index of the point whose vector from space point has the largest magnitude of cross product with given vector. | |
| isAlmostEqual(dataA: Point3d[] | Float64Array | undefined, dataB: Point3d[] | Float64Array | undefined): boolean Static | Apply Geometry.isAlmostEqual to corresponding coordinates | |
| isCloseToPlane(data: Point3d[] | Float64Array, plane: Plane3dByOriginAndUnitNormal, tolerance: number = Geometry.smallMetricDistance): boolean Static | return true iff all points' altitudes are within tolerance of the plane. | |
| minMaxPoints(data: Point3d[]): object | undefined Static | Return (clones of) points in data[] with min and max x and y parts. | |
| multiplyInPlace(transform: Transform, xyz: Float64Array): void Static | multiply a transform times each x,y,z triple and replace the x,y,z in the packed array | |
| packToFloat64Array(data: Point3d[]): Float64Array Static | pack x,y,z to Float64Array |
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| streamXYZ(data: MultiLineStringDataVariant, startChainCallback: (chainData: MultiLineStringDataVariant, isLeaf: boolean) => void | undefined, pointCallback: (x: number, y: number, z: number) => void, endChainCallback: (chainData: MultiLineStringDataVariant, isLeaf: boolean) => void | undefined): number Static | Point3dArray.streamXYZ is deprecated -- use VariantPointStream.streamXYZ (handler) |
Deprecated |
| streamXYZXYZ(data: MultiLineStringDataVariant, startChainCallback: (chainData: MultiLineStringDataVariant, isLeaf: boolean) => void | undefined, segmentCallback: (x0: number, y0: number, z0: number, x1: number, y1: number, z1: number) => void, endChainCallback: (chainData: MultiLineStringDataVariant, isLeaf: boolean) => void | undefined): number Static | Point3dArray.streamXYZXYZ is deprecated -- use VariantPointStream.streamXYZXYZ (handler) |
Deprecated |
| sumEdgeLengths(data: Point3d[] | Float64Array, addClosureEdge: boolean = false): number Static | Sum lengths of edges. | |
| sumWeightedX(weights: Float64Array, points: Point3d[]): number Static | sum the weighted x components from a point array. | |
| sumWeightedY(weights: Float64Array, points: Point3d[]): number Static | sum the weighted x components from a point array. | |
| sumWeightedZ(weights: Float64Array, points: Point3d[]): number Static | sum the weighted x components from a point array. | |
| unpackNumbersToNestedArrays(data: Float64Array, numPerBlock: number): any[] Static | return an 2-dimensional array containing all the values of data in arrays of numPerBlock |
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| unpackNumbersToNestedArraysIJK(data: Float64Array, numPerBlock: number, numPerRow: number): any[] Static | return an 3-dimensional array containing all the values of data in arrays numPerRow blocks of numPerBlock |
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| unpackNumbersToPoint3dArray(data: Float64Array | number[]): Point3d[] Static | unpack from a number array or Float64Array to an array of Point3d |
Defined in
Last Updated: 08 January, 2020