gis-tools-ts

import { CoordOperation } from '.'; import { GridDescription, PJ_TYPE, pjIoUnits } from '../constants'; import type { DatumParams } from '../../readers/wkt'; import type { ProjectionTransform } from '.'; import type { VectorPoint } from '../../geometry'; /** Define the projection with all it's variable components */ export interface ProjectionParams { todo?: string; } /** Base class for all projections */ export declare class ProjectionBase implements ProjectionTransform { shortName: string; static names: string[]; descr: string; params: ProjectionParams; /** Parent PJ of pipeline steps - undefined if not a pipeline step */ parent?: ProjectionTransform; /************************************************************************************* E L L I P S O I D P A R A M E T E R S ************************************************************************************** Despite YAGNI, we add a large number of ellipsoidal shape parameters, which are not yet set up in pj_init. They are, however, inexpensive to compute, compared to the overall time taken for setting up the complex PJ object (cf. e.g. https://en.wikipedia.org/wiki/Angular_eccentricity). But during single point projections it will often be a useful thing to have these readily available without having to recompute at every pj_fwd / pj_inv call. With this wide selection, we should be ready for quite a number of geodetic algorithms, without having to incur further ABI breakage. **************************************************************************************/ /** The linear parameters */ /** (F64) semimajor axis (radius if eccentricity==0) */ a: number; /** (F64) semiminor axis */ b: number; /** (F64) 1 / a */ ra: number; /** (F64) 1 / b */ rb: number; /** The eccentricities */ /** (F64) angular eccentricity */ alpha: number; /** (F64) first eccentricity */ e: number; /** (F64) first eccentricity squared */ es: number; /** (F64) second eccentricity */ e2: number; /** (F64) second eccentricity squared */ e2s: number; /** (F64) third eccentricity */ e3: number; /** (F64) third eccentricity squared */ e3s: number; /** (F64) 1 - e^2 */ oneEs: number; /** (F64) 1 / oneEs */ roneEs: number; /** The flattenings */ /** (F64) first flattening */ f: number; /** (F64) second flattening */ f2: number; /** (F64) third flattening */ n: number; /** (F64) 1 / f */ rf: number; /** (F64) 1 / f2 */ rf2: number; /** (F64) 1 / n */ rn: number; /** This one's for GRS80 */ /** (F64) "Dynamic form factor" */ J: number; /** (F64) es and a before any +proj related adjustment */ esOrig: number; /** (F64) semimajor axis before any +proj related adjustment */ aOrig: number; /************************************************************************************* C O O R D I N A T E H A N D L I N G **************************************************************************************/ /** (I32) Over-range flag */ over: number; /** (I32) Geocentric latitude flag */ geoc: number; /** (I32) proj=latlong ... not really a projection at all */ is_latlong: number; /** (I32) proj=geocent ... not really a projection at all */ is_geocent: number; /** (I32) 0 for operations that are purely cartesian */ need_ellps: number; /** (I32) Whether to skip forward prepare */ skip_fwd_prepare: number; /** (I32) Whether to skip forward finalize */ skip_fwd_finalize: number; /** (I32) Whether to skip inverse prepare */ skip_inv_prepare: number; /** (I32) Whether to skip inverse finalize */ skip_inv_finalize: number; /** Flags for input/output coordinate types */ left: pjIoUnits; right: pjIoUnits; /** These PJs are used for implementing cs2cs style coordinate handling in the 4D API */ /************************************************************************************* C A R T O G R A P H I C O F F S E T S **************************************************************************************/ /** (F64) central meridian */ lam0: number; /** (F64) central parallel */ phi0: number; /** (F64) false easting */ x0: number; /** (F64) false northing */ y0: number; /** (F64) height origin */ z0: number; /** (F64) time origin */ t0: number; /************************************************************************************* S C A L I N G **************************************************************************************/ /** (F64) General scaling factor - e.g. the 0.9996 of UTM */ k0: number; /** (F64) Plane coordinate scaling. Internal unit [m] */ to_meter: number; /** (F64) Plane coordinate scaling. Internal unit [m] */ fr_meter: number; /** (F64) Vertical scaling. Internal unit [m] */ vto_meter: number; /** (F64) Vertical scaling. Internal unit [m] */ vfr_meter: number; /************************************************************************************* D A T U M S A N D H E I G H T S Y S T E M S ************************************************************************************** It may be possible, and meaningful, to move the list parts of this up to the PJ_CONTEXT level. **************************************************************************************/ datum_type: number; datum_params: DatumParams; has_geoid_vgrids: number; from_greenwich: number; long_wrap_center: number; is_long_wrap_set: number; axis: [number, number, number, number]; /************************************************************************************* ISO-19111 interface **************************************************************************************/ iso_obj?: Record<string, unknown>; iso_obj_is_coordinate_operation: boolean; coordinateEpoch: number; hasCoordinateEpoch: boolean; lastWKT?: string; lastPROJString?: string; lastJSONString?: string; gridsNeededAsked: boolean; gridsNeeded: GridDescription[]; type: PJ_TYPE; /************************************************************************************* proj_create_crs_to_crs() alternative coordinate operations **************************************************************************************/ alternativeCoordinateOperations?: CoordOperation[]; iCurCoordOp: number; errorIfBestTransformationNotAvailable: boolean; warnIfBestTransformationNotAvailable: boolean; skipNonInstantiable: boolean; /** @param params - projection specific parameters */ constructor(params?: ProjectionParams); /** * Forward projection from x-y to lon-lat. In this case, radians to degrees * @param p - Vector Point. This is a placeholder for a lon-lat WGS84 point */ forward(p: VectorPoint): void; /** * Inverse projection from lon-lat to x-y. In this case, degrees to radians * @param p - Vector Point. This is a placeholder for a lon-lat WGS84 point */ inverse(p: VectorPoint): void; } //# sourceMappingURL=base.d.ts.map