Intermact API Reference / @intermact/core / CoordinateTransform3D

Class: CoordinateTransform3D

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:22

Scene coordinate transforms for a 3D scene (design.md §7.2, §10). Mirror of CoordinateTransform2D: maps between absolute world coordinates and normalized domain UVW, plus cylindrical/spherical conversions for the matching coordinate systems. In 3D the math space is the world space, so the camera (not this transform) handles projection.

Constructors

Constructor

new CoordinateTransform3D(domain?, system?): CoordinateTransform3D

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:26

Parameters

domain?

Domain3D = UNIT_DOMAIN_3D

system?

CoordinateSystem3D = "cartesian"

Returns

CoordinateTransform3D

Properties

domain

readonly domain: Domain3D

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:24

World-coordinate domain (defaults to the unit cube).

---

system

readonly system: CoordinateSystem3D = "cartesian"

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:28

Methods

absToRel()

absToRel(value): Vec3

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:34

Map absolute world coordinates to normalized domain UVW in [0,1]³.

Parameters

value

AbsXYZ

Returns

Vec3

---

fromCylindrical()

fromCylindrical(r, theta, z): AbsXYZ

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:63

Absolute point from cylindrical coordinates.

Parameters

r

number

theta

number

z

number

Returns

AbsXYZ

---

fromSpherical()

fromSpherical(r, theta, phi): AbsXYZ

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:81

Absolute point from spherical coordinates.

Parameters

r

number

theta

number

phi

number

Returns

AbsXYZ

---

relToAbs()

relToAbs(value): AbsXYZ

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:44

Map normalized domain UVW back to absolute world coordinates.

Parameters

value

Vec3

Returns

AbsXYZ

---

toCylindrical()

toCylindrical(value): object

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:54

Cylindrical radius/angle (radians)/height of an absolute point (z is the axis).

Parameters

value

AbsXYZ

Returns

object

r

readonly r: number

theta

readonly theta: number

z

readonly z: number

---

toSpherical()

toSpherical(value): object

Defined in: packages/core/src/layout/coordinate-transform-3d.ts:71

Spherical radius / azimuth theta (around z) / polar phi (from +z) of an absolute point, all in radians.

Parameters

value

AbsXYZ

Returns

object

phi

readonly phi: number

r

readonly r: number

theta

readonly theta: number