Java Geometry.isValid方法代碼示例

import com.vividsolutions.jts.geom.Geometry; //導入方法依賴的package包/類
public static SimpleFeatureCollection correctFeatures(SimpleFeatureCollection fc){
 	SimpleFeatureIterator iterator=fc.features();
 	DefaultFeatureCollection outVector = new DefaultFeatureCollection();

 	while(iterator.hasNext()){
 		SimpleFeature sf=iterator.next();
 		Geometry gm=(Geometry)sf.getDefaultGeometry();
 		if(!gm.isValid()){
 			gm=JTSUtil.repair(gm);
 			System.out.println(gm.isValid());
 		}
sf.setDefaultGeometry(gm);
   outVector.add(sf);

 	}

 	return fc;
 }
 

import com.vividsolutions.jts.geom.Geometry; //導入方法依賴的package包/類
/**
 * Check GML Footprint validity
 */
public static boolean checkGMLFootprint (String footprint)
{
   try
   {
      Configuration configuration = new GMLConfiguration ();
      Parser parser = new Parser (configuration);

      Geometry geom =
            (Geometry) parser.parse (new InputSource (
                  new StringReader (footprint)));
      if (!geom.isEmpty() && !geom.isValid())
      {
         LOGGER.error("Wrong footprint");
         return false;
      }
   }
   catch (Exception e)
   {
      LOGGER.error("Error in extracted footprint: " + e.getMessage());
      return false;
   }
   return true;
}
 

import com.vividsolutions.jts.geom.Geometry; //導入方法依賴的package包/類
/**
 *
 * @param shapes
 * @param shapes2
 * @throws Exception
 */
private static SimpleFeatureCollection joinFeaures(SimpleFeatureSource shapes, SimpleFeatureSource shapes2) throws Exception {
	SimpleFeatureCollection join =null;

    SimpleFeatureType schema = shapes.getSchema();
    String typeName = schema.getTypeName();
    String geomName = schema.getGeometryDescriptor().getLocalName();

    SimpleFeatureType schema2 = shapes2.getSchema();
    String typeName2 = schema2.getTypeName();
    String geomName2 = schema2.getGeometryDescriptor().getLocalName();
    FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();

    Query outerGeometry = new Query(typeName, Filter.INCLUDE, new String[] { geomName });
    SimpleFeatureCollection outerFeatures = shapes.getFeatures(outerGeometry);
    SimpleFeatureIterator iterator = outerFeatures.features();
    int max = 0;
    try {
        while (iterator.hasNext()) {
            SimpleFeature feature = iterator.next();
            try {
                Geometry geometry = (Geometry) feature.getDefaultGeometry();
                if (!geometry.isValid()) {
                    // skip bad data
                    continue;
                }
                Filter innerFilter = ff.intersects(ff.property(geomName2), ff.literal(geometry));
                Query innerQuery = new Query(typeName2, innerFilter, Query.NO_NAMES);
                join = shapes2.getFeatures(innerQuery);
                int size = join.size();
                max = Math.max(max, size);
            } catch (Exception skipBadData) {
            }
        }
    } finally {
        iterator.close();
    }
    return join;
}
 

import com.vividsolutions.jts.geom.Geometry; //導入方法依賴的package包/類
/**
 * Update the geo filter configuration from user supplied GeoFilter property.
 *
 * @param geo_filter the content of the GeoFilter property
 * @throws InvalidValueException if GeoFilter is invalid
 */
private void updateGeoFilter(String geo_filter) throws InvalidValueException
{
   if (geo_filter == null || geo_filter.isEmpty())
   {
      this.syncConf.removeConfig("geofilter_op");
      this.syncConf.removeConfig("geofilter_shape");
   }
   else
   {
      Pattern pattern = Pattern.compile("(disjoint|within|contains|intersects) (.+)");
      Matcher matcher = pattern.matcher(geo_filter);
      if (!matcher.matches())
      {
         throw new InvalidValueException(SynchronizerEntitySet.GEO_FILTER, geo_filter);
      }
      String operator = matcher.group(1);
      String wkt = matcher.group(2);
      WKTReader wkt_reader = new WKTReader();
      try
      {
         Geometry geometry = wkt_reader.read(wkt);
         if (!geometry.isValid())
         {
            throw new InvalidValueException(SynchronizerEntitySet.GEO_FILTER, geo_filter);
         }
         this.syncConf.setConfig("geofilter_op", operator);
         this.syncConf.setConfig("geofilter_shape", wkt);
      }
      catch (com.vividsolutions.jts.io.ParseException ex)
      {
         throw new InvalidValueException(SynchronizerEntitySet.GEO_FILTER, geo_filter);
      }
   }
}
 

import com.vividsolutions.jts.geom.Geometry; //導入方法依賴的package包/類
private void validate(final Geometry geom, final List<ValidationResult> validationErrors) {
	
	if (geom.isEmpty()) {
		return;
	}

	if (geom instanceof GeometryCollection) {
		final GeometryCollection gc = (GeometryCollection) geom;
		for (int numGeom = 0; numGeom < gc.getNumGeometries(); numGeom++) {
			validate(gc.getGeometryN(numGeom), validationErrors);
		}
	}

	final ValidationResult result = new ValidationResult();
	result.setWkt(geom.toText());
	final List<String> messages = new ArrayList<String>();
	
	if (!geom.isValid()) {
		messages.add("Error en topología básica");
	}

	if (!geom.isSimple()) {
		messages.add("No es una geometría simple");
	}

	if (repeatedPointTester.hasRepeatedPoint(geom)) {
		messages.add("Se encuentran vértices repetidos");
	}

	if (geom instanceof Polygon) {
		final Polygon polygon = (Polygon) geom;
		if (CGAlgorithms.isCCW(polygon.getExteriorRing().getCoordinates())) {
			messages.add("Error en orientación del polígono");
		} else {

			for (int numRing = 0; numRing < polygon.getNumInteriorRing(); numRing++) {
				if (!CGAlgorithms.isCCW(polygon.getInteriorRingN(numRing).getCoordinates())) {
					messages.add("Error en orientación del polígono en anillos interiores");
					break;
				}
			}
		}

		if (!validateMinPolygonArea(geom)) {
			messages.add("Error en validación mínima de area de un polígono");
		}
	}

	if (!validateMinSegmentLength(geom)) {
		messages.add("Error en validación mínima de longitud de segmento. Coordenadas");
		result.setErrorsPoints(errorCoordinates);
	}


	if(!messages.isEmpty()) {
		result.setMessages(messages);
		validationErrors.add(result);
	}		
}