API Reference > imodeljs-frontend > Views > ViewingSpace ViewingSpace Class Describes a Viewport's viewing volume, plus its size on the screen. A new instance of ViewingSpace is created every time the Viewport's frustum changes. see Viewport.viewingSpace. Methods Name Description calcNpcToView(): Map4d getFrustum(sys: CoordSystem = CoordSystem.World, adjustedBox: boolean = true, box?: Frustum): Frustum Get an 8-point Frustum corresponding to the 8 corners of the Viewport in the specified coordinate system. getViewCorners(): Range3d npcToView(pt: Point3d, out?: Point3d): Point3d Convert a point from CoordSystem.Npc to CoordSystem.View npcToViewArray(pts: Point3d[]): void Convert an array of points from CoordSystem.Npc to CoordSystem.View npcToWorld(pt: Readonly<WritableXYAndZ>, out?: Point3d): Point3d Convert a point from CoordSystem.Npc to CoordSystem.World npcToWorldArray(pts: Point3d[]): void Convert an array of points from CoordSystem.Npc to CoordSystem.World view4dToWorld(input: Point4d, out?: Point3d): Point3d Convert a point from CoordSystem.View as a Point4d to CoordSystem.View view4dToWorldArray(viewPts: Point4d[], worldPts: Point3d[]): void Convert an array of points from CoordSystem.View as Point4ds to CoordSystem.World viewToNpc(pt: Point3d, out?: Point3d): Point3d Convert a point from CoordSystem.View to CoordSystem.Npc viewToNpcArray(pts: Point3d[]): void Convert an array of points from CoordSystem.View to CoordSystem.Npc viewToWorld(input: Readonly<WritableXYAndZ>, out?: Point3d): Point3d Convert a point from CoordSystem.View to CoordSystem.World viewToWorldArray(pts: Point3d[]): void Convert an array of points from CoordSystem.View to CoordSystem.World worldToNpc(pt: Readonly<WritableXYAndZ>, out?: Point3d): Point3d Convert a point from CoordSystem.World to CoordSystem.Npc worldToNpcArray(pts: Point3d[]): void Convert an array of points from CoordSystem.World to CoordSystem.Npc worldToView(input: Readonly<WritableXYAndZ>, out?: Point3d): Point3d Convert a point from CoordSystem.World to CoordSystem.View worldToView4d(input: Readonly<WritableXYAndZ>, out?: Point4d): Point4d Convert a point from CoordSystem.World to CoordSystem.View as Point4d worldToView4dArray(worldPts: Point3d[], viewPts: Point4d[]): void Convert an array of points from CoordSystem.World to CoordSystem.View, as Point4ds worldToViewArray(pts: Point3d[]): void Convert an array of points from CoordSystem.World to CoordSystem.View createFromViewport(vp: Viewport): undefined | ViewingSpace Static Create from a Viewport. Properties Name Type Description eyePoint Readonly undefined | Point3d Eye point - undefined if not a perspective projection. rotation Readonly Matrix3d View rotation matrix (copied from ViewState) view Accessor ViewState The ViewState for this Viewport viewDelta Readonly Vector3d View delta, potentially expanded viewDeltaUnexpanded Readonly Vector3d View delta (from ViewState, unexpanded) viewOrigin Readonly Point3d View origin, potentially expanded viewOriginUnexpanded Readonly Point3d View origin (from ViewState, unexpanded) worldToNpcMap Readonly Map4d Providers conversions between world and Npc (non-dimensional perspective) coordinates. worldToViewMap Readonly Map4d Provides conversions between world and view coordinates. Defined in core/frontend/src/ViewingSpace.ts Line 26 Last Updated: 12 June, 2024