qgis_raisewarning: QGIS algorithm - Raise warning

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

QGIS algorithm - Raise warning

Description

QGIS Algorithm provided by QGIS (native c++) Raise warning (native:raisewarning). Raises an warning message. This algorithm raises a warning message in the log. The warning message can be customized, and optionally an expression based condition can be specified. If an expression condition is used, then the warning will only be logged if the expression result is true. A false result indicates that no warning will be logged.

Usage

qgis_raisewarning(
  MESSAGE = qgisprocess:::qgis_default_value(),
  CONDITION = qgisprocess:::qgis_default_value(),
  ...,
  .complete_output = .complete_output_option(),
  .quiet = .quiet_option(),
  .messages = .message_option()
)

Arguments

MESSAGE	string - Warning message. 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.
CONDITION	expression - Condition. A valid QGIS expression string, e.g "road_name" = 'MAIN RD'.
...	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

No output description provided.

JanCaha/r_package_qgis documentation built on May 1, 2024, 3:30 a.m.