qgis_removenullgeometries: QGIS algorithm - Remove null geometries

In JanCaha/r_package_qgis: An extension of package "qgisprocess" providing direct R functions for QGIS functions

QGIS algorithm - Remove null geometries

Description

QGIS Algorithm provided by QGIS (native c++) Remove null geometries (native:removenullgeometries). This algorithm removes any features which do not have a geometry from a vector layer. All other features will be copied unchanged. Optionally, the features with null geometries can be saved to a separate output. If 'Also remove empty geometries' is checked, the algorithm removes features whose geometries have no coordinates, i.e., geometries that are empty. In that case, also the null output will reflect this option, containing both null and empty geometries.

Usage

qgis_removenullgeometries(
  INPUT = qgisprocess:::qgis_default_value(),
  REMOVE_EMPTY = qgisprocess:::qgis_default_value(),
  OUTPUT = qgisprocess:::qgis_default_value(),
  NULL_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.
REMOVE_EMPTY	boolean - Also remove empty geometries. 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 - Non null geometries. Path for new vector layer.
NULL_OUTPUT	sink - Null geometries. 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

• NULL_OUTPUT - outputVector - Null geometries

• OUTPUT - outputVector - Non null geometries

JanCaha/r_package_qgis documentation built on Nov. 3, 2024, 5:25 p.m.