pdfkmp/com.conamobile.pdfkmp.vector/PathCommand

PathCommand

sealed interface PathCommand

One step of a vector path, expressed in absolute viewport coordinates.

The parser in PathDataParser converts SVG / Android Vector path data into a list of these — relative commands (m, l, c, …) are folded into their absolute siblings, smooth shorthands (s, t) are expanded into the equivalent full cubic / quadratic, and horizontal / vertical shortcuts (h, v) become regular LineTos. Callers therefore only have to handle four primitive cases plus close.

Coordinates are in the path's viewport (the viewBox for SVG, the viewportWidth / viewportHeight for Android Vector). The renderer scales these into the destination rectangle the user requested.

Inheritors

Types

data object Close : PathCommand

Closes the current sub-path with a straight-line segment back to its starting point. Drawing a stroke after Close joins cleanly at the corner; without Close the last point's stroke ends with a cap.

CubicTo

data class CubicTo(val c1x: Float, val c1y: Float, val c2x: Float, val c2y: Float, val x: Float, val y: Float) : PathCommand

Adds a cubic Bézier from the current point to (x, y) using (c1x, c1y) and (c2x, c2y) as the off-curve control points.

LineTo

data class LineTo(val x: Float, val y: Float) : PathCommand

Adds a straight-line segment from the current point to the absolute point.

MoveTo

data class MoveTo(val x: Float, val y: Float) : PathCommand

Begins a new sub-path at the absolute point.

QuadTo

data class QuadTo(val cx: Float, val cy: Float, val x: Float, val y: Float) : PathCommand

Adds a quadratic Bézier from the current point to (x, y) using (cx, cy) as the single off-curve control point.