QGIS Algorithm provided by GRASS v.kernel.vector (grass:v.kernel.vector). v.kernel.vector - Generates a vector density map from vector points on a vector network.
grass_v_kernel_vector(
input = qgisprocess:::qgis_default_value(),
net = qgisprocess:::qgis_default_value(),
radius = qgisprocess:::qgis_default_value(),
dsize = qgisprocess:::qgis_default_value(),
segmax = qgisprocess:::qgis_default_value(),
distmax = qgisprocess:::qgis_default_value(),
multiplier = qgisprocess:::qgis_default_value(),
node = qgisprocess:::qgis_default_value(),
kernel = qgisprocess:::qgis_default_value(),
.o = qgisprocess:::qgis_default_value(),
.n = qgisprocess:::qgis_default_value(),
.m = qgisprocess:::qgis_default_value(),
output = qgisprocess:::qgis_default_value(),
GRASS_REGION_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_SNAP_TOLERANCE_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_MIN_AREA_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_OUTPUT_TYPE_PARAMETER = qgisprocess:::qgis_default_value(),
GRASS_VECTOR_DSCO = qgisprocess:::qgis_default_value(),
GRASS_VECTOR_LCO = qgisprocess:::qgis_default_value(),
GRASS_VECTOR_EXPORT_NOCAT = qgisprocess:::qgis_default_value(),
...,
.complete_output = .complete_output_option(),
.quiet = .quiet_option(),
.messages = .message_option()
)source - Name of input vector map with training points. Path to a vector layer.
source - Name of input network vector map. Path to a vector layer.
number - Kernel radius in map units. 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.
number - Discretization error in map units. 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.
number - Maximum length of segment on network. 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.
number - Maximum distance from point to network. 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.
number - Multiply the density result by this number. 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.
enum of ("none", "split") - Node method. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
enum of ("uniform", "triangular", "epanechnikov", "quartic", "triweight", "gaussian", "cosine") - Kernel function. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
boolean - Try to calculate an optimal radius with given 'radius' taken as maximum (experimental). 1 for true/yes. 0 for false/no. 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. Original algorithm parameter name: -o.
boolean - Normalize values by sum of density multiplied by length of each segment.. 1 for true/yes. 0 for false/no. 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. Original algorithm parameter name: -n.
boolean - Multiply the result by number of input points. 1 for true/yes. 0 for false/no. 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. Original algorithm parameter name: -m.
vectorDestination - Kernel. Path for new vector layer.
extent - GRASS GIS region extent. A comma delimited string of x min, x max, y min, y max. E.g. '4,10,101,105'. Path to a layer. The extent of the layer is used..
number - v.in.ogr snap tolerance (-1 = no snap). 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.
number - v.in.ogr min area. 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.
enum of ("auto", "point", "line", "area") - v.out.ogr output type. Number of selected option, e.g. '1'. Comma separated list of options, e.g. '1,3'.
string - v.out.ogr output data source options (dsco). 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.
string - v.out.ogr output layer options (lco). 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.
boolean - Also export features without category (not labeled). Otherwise only features with category are exported. 1 for true/yes. 0 for false/no. 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.