Application: gvSIG desktop » gvSIG tools: ToolBox

package es.unex.sextante.vectorTools.transform;

import com.vividsolutions.jts.geom.Geometry;

import com.vividsolutions.jts.geom.util.AffineTransformation;

import es.unex.sextante.additionalInfo.AdditionalInfoNumericalValue;

import es.unex.sextante.additionalInfo.AdditionalInfoVectorLayer;

import es.unex.sextante.core.GeoAlgorithm;

import es.unex.sextante.core.Sextante;

import es.unex.sextante.dataObjects.IFeature;

import es.unex.sextante.dataObjects.IFeatureIterator;

import es.unex.sextante.dataObjects.IVectorLayer;

import es.unex.sextante.dataObjects.vectorFilters.BoundingBoxFilter;

import es.unex.sextante.exceptions.GeoAlgorithmExecutionException;

import es.unex.sextante.exceptions.RepeatedParameterNameException;

import es.unex.sextante.outputs.OutputVectorLayer;

public class TransformAlgorithm

         extends

            GeoAlgorithm {

   public static final String DISTANCEX = "DISTANCEX";

   public static final String DISTANCEY = "DISTANCEY";

   public static final String ANCHORX   = "ANCHORX";

   public static final String ANCHORY   = "ANCHORY";

   public static final String ANGLE     = "ANGLE";

   public static final String SCALEX    = "SCALEX";

   public static final String LAYER     = "LAYER";

   public static final String SCALEY    = "SCALEY";

   public static final String RESULT    = "RESULT";

   private IVectorLayer       m_Output;

   private double             dDistanceX;

   private double             dDistanceY;

   private double             dAnchorX;

   private double             dAnchorY;

   private double             dAngle;

   private double             dScaleX;

   private double             dScaleY;

   IVectorLayer               layerIn;

   @Override

   public boolean processAlgorithm() throws GeoAlgorithmExecutionException {

      int i;

      dDistanceX = m_Parameters.getParameterValueAsDouble(DISTANCEX);

      dDistanceY = m_Parameters.getParameterValueAsDouble(DISTANCEY);

      dAnchorX = m_Parameters.getParameterValueAsDouble(ANCHORX);

      dAnchorY = m_Parameters.getParameterValueAsDouble(ANCHORY);

      dAngle = m_Parameters.getParameterValueAsDouble(ANGLE);

      dScaleX = m_Parameters.getParameterValueAsDouble(SCALEX);

      dScaleY = m_Parameters.getParameterValueAsDouble(SCALEY);

      layerIn = m_Parameters.getParameterValueAsVectorLayer(LAYER);

      if (!m_bIsAutoExtent) {

         layerIn.addFilter(new BoundingBoxFilter(m_AnalysisExtent));

      }

      m_Output = getNewVectorLayer(RESULT, Sextante.getText("Capa_transformada"), layerIn.getShapeType(),

               layerIn.getFieldTypes(), layerIn.getFieldNames());

      final AffineTransformation at = new AffineTransformation();

      at.compose(AffineTransformation.translationInstance(-dAnchorX, -dAnchorY));

      at.compose(AffineTransformation.rotationInstance(Math.toRadians(dAngle)));

      at.compose(AffineTransformation.translationInstance(dAnchorX, dAnchorY));

      at.compose(AffineTransformation.scaleInstance(dScaleX, dScaleY));

      at.compose(AffineTransformation.translationInstance(dDistanceX, dDistanceY));

      final IFeatureIterator iter = layerIn.iterator();

      i = 0;

      final int iShapeCount = layerIn.getShapesCount();

      while (iter.hasNext() && setProgress(i, iShapeCount)) {

         final IFeature feature = iter.next();

         final Geometry geom = (Geometry) feature.getGeometry().clone();

         geom.apply(at);

         m_Output.addFeature(geom, feature.getRecord().getValues());

      }

      return !m_Task.isCanceled();

   }

   @Override

   public void defineCharacteristics() {

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

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

      setUserCanDefineAnalysisExtent(true);

      try {

         m_Parameters.addInputVectorLayer(LAYER, Sextante.getText("Input_layer"), AdditionalInfoVectorLayer.SHAPE_TYPE_ANY, true);

         m_Parameters.addNumericalValue(DISTANCEX, Sextante.getText("Translation_X"),

                  AdditionalInfoNumericalValue.NUMERICAL_VALUE_DOUBLE, 0, Double.NEGATIVE_INFINITY, Double.MAX_VALUE);

         m_Parameters.addNumericalValue(DISTANCEY, Sextante.getText("Translation_Y"),

                  AdditionalInfoNumericalValue.NUMERICAL_VALUE_DOUBLE, 0, Double.NEGATIVE_INFINITY, Double.MAX_VALUE);

         m_Parameters.addNumericalValue(ANGLE, Sextante.getText("Rotation_angle"),

                  AdditionalInfoNumericalValue.NUMERICAL_VALUE_DOUBLE, 0, Double.NEGATIVE_INFINITY, Double.MAX_VALUE);

         m_Parameters.addNumericalValue(SCALEX, Sextante.getText("Scale_factor__X"),

                  AdditionalInfoNumericalValue.NUMERICAL_VALUE_DOUBLE, 1, Double.NEGATIVE_INFINITY, Double.MAX_VALUE);

         m_Parameters.addNumericalValue(SCALEY, Sextante.getText("Scale_Factor__Y"),

                  AdditionalInfoNumericalValue.NUMERICAL_VALUE_DOUBLE, 1, Double.NEGATIVE_INFINITY, Double.MAX_VALUE);

         m_Parameters.addNumericalValue(ANCHORX, Sextante.getText("Anchor_point_X"),

                  AdditionalInfoNumericalValue.NUMERICAL_VALUE_DOUBLE, 0, Double.NEGATIVE_INFINITY, Double.MAX_VALUE);

         m_Parameters.addNumericalValue(ANCHORY, Sextante.getText("Anchor_point_Y"),

                  AdditionalInfoNumericalValue.NUMERICAL_VALUE_DOUBLE, 0, Double.NEGATIVE_INFINITY, Double.MAX_VALUE);

         addOutputVectorLayer(RESULT, Sextante.getText("Capa_transformada"), OutputVectorLayer.SHAPE_TYPE_UNDEFINED, LAYER);

      }

      catch (final RepeatedParameterNameException e) {

         Sextante.addErrorToLog(e);

      }

   }

}