R/qgis_multiringconstantbuffer.R
qgis_multiringconstantbuffer.Rd
QGIS Algorithm provided by QGIS (native c++) Multi-ring buffer (constant distance) (native:multiringconstantbuffer). This algorithm computes multi-ring ('donuts') buffer for all the features in an input layer, using a fixed or dynamic distance and rings number. —————- Notes —————- - This algorithm drops existing primary keys or FID values and regenerates them in output layers.
qgis_multiringconstantbuffer(
INPUT = qgisprocess:::qgis_default_value(),
RINGS = qgisprocess:::qgis_default_value(),
DISTANCE = qgisprocess:::qgis_default_value(),
OUTPUT = qgisprocess:::qgis_default_value(),
...,
.complete_output = .complete_output_option(),
.quiet = .quiet_option(),
.messages = .message_option()
)
source
- Input layer. Path to a vector layer.
number
- Number of rings. 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.
distance
- Distance between rings. 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.
sink
- Multi-ring buffer (constant distance). Path for new vector layer.
further parameters passed to qgisprocess::qgis_run_algorithm()
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
.
logical specifying if parameter .quiet
for qgisprocess::qgis_run_algorithm()
Default value is TRUE
.
logical specifying if messages from qgisprocess::qgis_run_algorithm()
should be printed (TRUE
) or not (FALSE
). Default value is FALSE
.