qgis_singlesidedbuffer: QGIS algorithm - Single sided buffer

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

QGIS algorithm - Single sided buffer

Description

QGIS Algorithm provided by QGIS (native c++) Single sided buffer (native:singlesidedbuffer). This algorithm buffers lines by a specified distance on one side of the line only. The segments parameter controls the number of line segments to use to approximate a quarter circle when creating rounded buffers. The join style parameter specifies whether round, miter or beveled joins should be used when buffering corners in a line. The miter limit parameter is only applicable for miter join styles, and controls the maximum distance from the buffer to use when creating a mitered join.

Usage

qgis_singlesidedbuffer(
  INPUT = qgisprocess:::qgis_default_value(),
  DISTANCE = qgisprocess:::qgis_default_value(),
  SIDE = qgisprocess:::qgis_default_value(),
  SEGMENTS = qgisprocess:::qgis_default_value(),
  JOIN_STYLE = qgisprocess:::qgis_default_value(),
  MITER_LIMIT = 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.
DISTANCE	distance - Distance. 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.
SIDE	enum of ⁠("Left", "Right")⁠ - Side. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
SEGMENTS	number - Segments. 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.
JOIN_STYLE	enum of ⁠("Round", "Miter", "Bevel")⁠ - Join style. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
MITER_LIMIT	number - Miter limit. 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 - Buffered. 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 - Buffered

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