qgis_pixelstopolygons: QGIS algorithm - Raster pixels to polygons

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

QGIS algorithm - Raster pixels to polygons

Description

QGIS Algorithm provided by QGIS (native c++) Raster pixels to polygons (native:pixelstopolygons). Creates a vector layer of polygons corresponding to each pixel in a raster layer. This algorithm converts a raster layer to a vector layer, by creating polygon features for each individual pixel's extent in the raster layer. Any NoData pixels are skipped in the output.

Usage

qgis_pixelstopolygons(
  INPUT_RASTER = qgisprocess:::qgis_default_value(),
  RASTER_BAND = qgisprocess:::qgis_default_value(),
  FIELD_NAME = qgisprocess:::qgis_default_value(),
  OUTPUT = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

INPUT_RASTER	raster - Raster layer. Path to a raster layer.
RASTER_BAND	band - Band number. Integer value representing an existing raster band number.
FIELD_NAME	string - Field name. String 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 - Vector polygons. 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 - Vector polygons

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