Documentation / @ripl/terminal / TerminalTransform

Interface: TerminalTransform

Defined in: terminal/src/transform.ts:23

The mapping from the logical space a scene is authored in onto the raster grid, composing the context's letterbox with whatever transform is current.

Every drawing path goes through one of these rather than reading scaleX/scaleY directly: a separable per-axis scale cannot express rotation or skew, which is why transforms used to be discarded by this backend.

Properties

Property	Modifier	Type	Description	Defined in
axisAligned	readonly	boolean	Whether the mapping is free of rotation and skew, so axis-aligned fast paths stay exact.	terminal/src/transform.ts:27
matrix	readonly	Matrix	The composite logical-to-raster matrix.	terminal/src/transform.ts:25
uniform	readonly	boolean	Whether the mapping scales both axes equally, so a circle stays a circle.	terminal/src/transform.ts:29

Methods

point()

point(x, y): Vertex

Defined in: terminal/src/transform.ts:37

Maps a point from logical space into raster space.

Parameters

Parameter	Type	Description
x	number	X coordinate in logical space.
y	number	Y coordinate in logical space.

Returns

Vertex

The corresponding raster-space vertex.

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scalar()

scalar(value): number

Defined in: terminal/src/transform.ts:44

Maps a logical length into raster space.

Parameters

Parameter	Type	Description
value	number	The length in logical units.

Returns

number

The length in raster pixels.