PathHitTester

fun PathHitTester(path: Path, @FloatRange(from = 0.0) tolerance: Float = 0.5f) =
    PathHitTester().apply { updatePath(path, tolerance) }

Creates a new PathHitTester to query whether certain x/y coordinates lie inside a given Path. A PathHitTester is optimized to perform multiple queries against a single path.

The result of a query depends on the fill type of the path.

If the content of path changes, you must call PathHitTester.updatePath or create a new PathHitTester as PathHitTester will cache precomputed values to speed up queries.

If path contains conic curves, they are converted to quadratic curves during the query process. The tolerance of that conversion is defined by tolerance. The tolerance should be appropriate to the coordinate systems used by the caller. For instance if the path is defined in pixels, 0.5 (half a pixel) or 1.0 (a pixel) are appropriate tolerances. If the path is normalized and defined in the domain 0..1, the caller should choose a more appropriate tolerance close to or equal to one "query unit". The tolerance must be >= 0.

Parameters