Application: gvSIG desktop » gvSIG tools: ToolBox

package es.unex.sextante.gridCalculus.constantGrid;

import es.unex.sextante.additionalInfo.AdditionalInfoNumericalValue;

import es.unex.sextante.core.GeoAlgorithm;

import es.unex.sextante.core.Sextante;

import es.unex.sextante.dataObjects.IRasterLayer;

import es.unex.sextante.exceptions.GeoAlgorithmExecutionException;

import es.unex.sextante.exceptions.RepeatedParameterNameException;

public class ConstantGridAlgorithm

         extends

            GeoAlgorithm {

   public static final String VALUE     = "VALUE";

   public static final String CONSTGRID = "CONSTGRID";

   @Override

   public void defineCharacteristics() {

      setName(Sextante.getText("Constant_grid"));

      setGroup(Sextante.getText("Raster_creation_tools"));

      setUserCanDefineAnalysisExtent(true);

      try {

         m_Parameters.addNumericalValue(VALUE, Sextante.getText("Value"), 1, AdditionalInfoNumericalValue.NUMERICAL_VALUE_DOUBLE);

         addOutputRasterLayer(CONSTGRID, Sextante.getText("Constant_grid"));

      }

      catch (final RepeatedParameterNameException e) {

         Sextante.addErrorToLog(e);

      }

   }

   @Override

   public boolean processAlgorithm() throws GeoAlgorithmExecutionException {

      double dValue;

      final IRasterLayer result = getNewRasterLayer(CONSTGRID, Sextante.getText("Constant_grid"),

               IRasterLayer.RASTER_DATA_TYPE_DOUBLE);

      dValue = m_Parameters.getParameterValueAsDouble(VALUE);

      result.assign(dValue);

      return !m_Task.isCanceled();

   }

}