QGIS algorithm - Concave hull (by layer) — qgis

QGIS Algorithm provided by QGIS (native c++) Concave hull (by layer) (native:concavehull). Computes the concave hull of all features from an input point layer. This algorithm computes the concave hull covering all features from an input point layer. See the 'Concave hull (by feature)' algorithm for a concave hull calculation which covers individual features from a layer.

qgis_concavehull(
  INPUT = qgisprocess:::qgis_default_value(),
  ALPHA = qgisprocess:::qgis_default_value(),
  HOLES = qgisprocess:::qgis_default_value(),
  NO_MULTIGEOMETRY = qgisprocess:::qgis_default_value(),
  OUTPUT = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

INPUT: source - Input layer. Path to a vector layer.
ALPHA: number - Threshold (0-1, where 1 is equivalent with Convex Hull). A numeric value. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
HOLES: boolean - Allow holes. 1 for true/yes. 0 for false/no. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
NO_MULTIGEOMETRY: boolean - Split multipart geometry into singleparts. 1 for true/yes. 0 for false/no. field:FIELD_NAME to use a data defined value taken from the FIELD_NAME field. expression:SOME EXPRESSION to use a data defined value calculated using a custom QGIS expression.
OUTPUT: sink - Concave hull. Path for new vector layer.
...: further parameters passed to qgisprocess::qgis_run_algorithm()
.complete_output: logical specifying if complete out of qgisprocess::qgis_run_algorithm() should be used (TRUE) or first output (most likely the main) should read (FALSE). Default value is TRUE.
.quiet: logical specifying if parameter .quiet for qgisprocess::qgis_run_algorithm() Default value is TRUE.
.messages: logical specifying if messages from qgisprocess::qgis_run_algorithm() should be printed (TRUE) or not (FALSE). Default value is FALSE.

Details

Outputs description

OUTPUT - outputVector - Concave hull