qgis_removeduplicatevertices: QGIS algorithm - Remove duplicate vertices

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

QGIS algorithm - Remove duplicate vertices

Description

QGIS Algorithm provided by QGIS (native c++) Remove duplicate vertices (native:removeduplicatevertices). This algorithm removes duplicate vertices from features, wherever removing the vertices does not result in a degenerate geometry. The tolerance parameter specifies the tolerance for coordinates when determining whether vertices are identical. By default, z values are not considered when detecting duplicate vertices. E.g. two vertices with the same x and y coordinate but different z values will still be considered duplicate and one will be removed. If the Use Z Value parameter is true, then the z values are also tested and vertices with the same x and y but different z will be maintained. Note that duplicate vertices are not tested between different parts of a multipart geometry. E.g. a multipoint geometry with overlapping points will not be changed by this method.

Usage

qgis_removeduplicatevertices(
  INPUT = qgisprocess:::qgis_default_value(),
  TOLERANCE = qgisprocess:::qgis_default_value(),
  USE_Z_VALUE = 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.
TOLERANCE	distance - Tolerance. 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.
USE_Z_VALUE	boolean - Use Z Value. 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 - Cleaned. 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 - Cleaned

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