Don't set a minimum pixel size for raster creation algorithms

qgis · Apr 23, 2023 · e68df56 · e68df56
1 parent 0f22e92
commit e68df56
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 2 deletions.
diff --git a/src/analysis/processing/qgsalgorithmconstantraster.cpp b/src/analysis/processing/qgsalgorithmconstantraster.cpp
@@ -66,7 +66,7 @@ void QgsConstantRasterAlgorithm::initAlgorithm( const QVariantMap & )
   addParameter( new QgsProcessingParameterExtent( QStringLiteral( "EXTENT" ), QObject::tr( "Desired extent" ) ) );
   addParameter( new QgsProcessingParameterCrs( QStringLiteral( "TARGET_CRS" ), QObject::tr( "Target CRS" ), QStringLiteral( "ProjectCrs" ) ) );
   addParameter( new QgsProcessingParameterNumber( QStringLiteral( "PIXEL_SIZE" ), QObject::tr( "Pixel size" ),
-                QgsProcessingParameterNumber::Double, 0.00001, false, 0.01 ) );
+                QgsProcessingParameterNumber::Double, 0.00001, false, 0 ) );
   addParameter( new QgsProcessingParameterNumber( QStringLiteral( "NUMBER" ), QObject::tr( "Constant value" ),
                 QgsProcessingParameterNumber::Double, 1, false ) );
 
@@ -95,6 +95,10 @@ QVariantMap QgsConstantRasterAlgorithm::processAlgorithm( const QVariantMap &par
   const double value = parameterAsDouble( parameters, QStringLiteral( "NUMBER" ), context );
   const int typeId = parameterAsInt( parameters, QStringLiteral( "OUTPUT_TYPE" ), context );
 
+  if ( pixelSize <= 0 ) {
+	  throw QgsProcessingException( QObject::tr( "Pixel size must be greater than 0." ) );
+  }
+
   //implement warning if input float has decimal places but is written to integer raster
   double fractpart;
   double intpart;

diff --git a/src/analysis/processing/qgsalgorithmrandomraster.cpp b/src/analysis/processing/qgsalgorithmrandomraster.cpp
@@ -41,7 +41,7 @@ void QgsRandomRasterAlgorithmBase::initAlgorithm( const QVariantMap & )
   addParameter( new QgsProcessingParameterExtent( QStringLiteral( "EXTENT" ), QObject::tr( "Desired extent" ) ) );
   addParameter( new QgsProcessingParameterCrs( QStringLiteral( "TARGET_CRS" ), QObject::tr( "Target CRS" ), QStringLiteral( "ProjectCrs" ) ) );
   addParameter( new QgsProcessingParameterNumber( QStringLiteral( "PIXEL_SIZE" ), QObject::tr( "Pixel size" ),
-                QgsProcessingParameterNumber::Double, 1, false, 0.01 ) );
+                QgsProcessingParameterNumber::Double, 1, false, 0 ) );
 
   //add specific parameters
   addAlgorithmParams();
@@ -56,6 +56,10 @@ bool QgsRandomRasterAlgorithmBase::prepareAlgorithm( const QVariantMap &paramete
   mExtent = parameterAsExtent( parameters, QStringLiteral( "EXTENT" ), context, mCrs );
   mPixelSize = parameterAsDouble( parameters, QStringLiteral( "PIXEL_SIZE" ), context );
 
+  if ( mPixelSize <= 0 ) {
+	  throw QgsProcessingException( QObject::tr( "Pixel size must be greater than 0." ) );
+  }
+
   return true;
 }