qgis_wedgebuffers: QGIS algorithm - Create wedge buffers

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

QGIS algorithm - Create wedge buffers

Description

QGIS Algorithm provided by QGIS (native c++) Create wedge buffers (native:wedgebuffers). This algorithm creates wedge shaped buffers from input points. The azimuth parameter gives the angle (in degrees) for the middle of the wedge to point. The buffer width (in degrees) is specified by the width parameter. Note that the wedge will extend to half of the angular width either side of the azimuth direction. The outer radius of the buffer is specified via outer radius, and optionally an inner radius can also be specified. The native output from this algorithm are CurvePolygon geometries, but these may be automatically segmentized to Polygons depending on the output format.

Usage

qgis_wedgebuffers(
  INPUT = qgisprocess:::qgis_default_value(),
  AZIMUTH = qgisprocess:::qgis_default_value(),
  WIDTH = qgisprocess:::qgis_default_value(),
  OUTER_RADIUS = qgisprocess:::qgis_default_value(),
  INNER_RADIUS = 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.
AZIMUTH	number - Azimuth (degrees from North). 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.
WIDTH	number - Wedge width (in degrees). 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.
OUTER_RADIUS	number - Outer radius. 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.
INNER_RADIUS	number - Inner radius. 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 - Buffers. 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 - Buffers

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