R/qgis_symmetricaldifference.R
qgis_symmetricaldifference.RdQGIS Algorithm provided by QGIS (native c++) Symmetrical difference (native:symmetricaldifference). This algorithm extracts the portions of features from both the Input and Overlay layers that do not overlap. Overlapping areas between the two layers are removed. The attribute table of the Symmetrical Difference layer contains original attributes from both the Input and Difference layers. —————- Notes —————- - This algorithm drops existing primary keys or FID values and regenerates them in output layers.
qgis_symmetricaldifference(
INPUT = qgisprocess:::qgis_default_value(),
OVERLAY = qgisprocess:::qgis_default_value(),
OVERLAY_FIELDS_PREFIX = qgisprocess:::qgis_default_value(),
OUTPUT = qgisprocess:::qgis_default_value(),
GRID_SIZE = qgisprocess:::qgis_default_value(),
...,
.complete_output = .complete_output_option(),
.quiet = .quiet_option(),
.messages = .message_option()
)source - Input layer. Path to a vector layer.
source - Overlay layer. Path to a vector layer.
string - Overlay fields prefix. 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.
sink - Symmetrical difference. Path for new vector layer.
number - Grid size. 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.
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.