qgis_filterverticesbym: QGIS algorithm - Filter vertices by M value

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

QGIS algorithm - Filter vertices by M value

Description

QGIS Algorithm provided by QGIS (native c++) Filter vertices by M value (native:filterverticesbym). Filters away vertices based on their m-value, returning geometries with only vertex points that have a m-value ≥ the specified minimum value and ≤ the maximum value. If the minimum value is not specified then only the maximum value is tested, and similarly if the maximum value is not specified then only the minimum value is tested. Depending on the input geometry attributes and the filters used, the resultant geometries created by this algorithm may no longer be valid.

Usage

qgis_filterverticesbym(
  INPUT = qgisprocess:::qgis_default_value(),
  MIN = qgisprocess:::qgis_default_value(),
  MAX = 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.
MIN	number - Minimum. 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.
MAX	number - Maximum. 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.
OUTPUT	sink - Filtered. 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 - Filtered

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