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初始化

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This commit is contained in:
hukekuan@163.com 2018-03-30 17:02:38 +08:00
parent 28c98e6c09
commit e838d2cb88
3 changed files with 51 additions and 11 deletions
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39
src/main/java/com/gis3c/spatial/common/FeatureUtilities.java
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@ -2,16 +2,21 @@ package com.gis3c.spatial.common;
import com.gis3c.spatial.entity.BaseFeature;
import com.vividsolutions.jts.geom.Geometry;
import org.geotools.data.DataUtilities;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.factory.CommonFactoryFinder;
import org.geotools.filter.text.cql2.CQL;
import org.geotools.filter.text.cql2.CQLException;
import org.geotools.geojson.feature.FeatureJSON;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.filter.Filter;
import org.opengis.filter.FilterFactory2;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.*;
/**
* Created by hukekuan on 2018/1/16.
@ -165,4 +170,34 @@ public class FeatureUtilities {
return result;
}
public static SimpleFeatureCollection FeatureCollectionFilter(
SimpleFeatureCollection featureCollection, Geometry geometry,String whereClause) throws CQLException {
SimpleFeatureCollection resultCollection = null;
if(featureCollection == null || featureCollection.size() == 0){
return featureCollection;
}
if(geometry == null && (whereClause == null || "".equals(whereClause))){
throw new IllegalArgumentException("参数输入有误");
}
FilterFactory2 filterFactory = CommonFactoryFinder.getFilterFactory2();
List<Filter> filterList = new ArrayList<>();
if(geometry != null){
if(geometry.getSRID() == 0){
geometry.setSRID(4326);
}
String geometryPropertyName = featureCollection.getSchema().getGeometryDescriptor().getLocalName();
filterList.add(filterFactory.intersects(filterFactory.property(geometryPropertyName), filterFactory.literal(geometry)));
}
if(whereClause != null && !"".equals(whereClause)){
filterList.add(CQL.toFilter(whereClause));
}
if(filterList.size() == 1){
resultCollection = featureCollection.subCollection(filterList.get(0));
}else if(filterList.size() == 2){
resultCollection = featureCollection.subCollection(filterFactory.and(filterList.get(0),filterList.get(1)));
}
return resultCollection;
}
}

4
src/main/java/com/gis3c/spatial/common/GeometryUtilities.java
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@ -44,7 +44,7 @@ public class GeometryUtilities {
* @return
*/
public static Point CreatePoint(double lon, double lat){
return geomFactory.createPoint(new Coordinate(lat, lon));
return geomFactory.createPoint(new Coordinate(lon,lat));
}
/**
@ -324,7 +324,7 @@ public class GeometryUtilities {
* @param distance
* @return
*/
public Polygon CreateBuffer(Geometry geometry,Double distance){
public static Polygon CreateBuffer(Geometry geometry,Double distance){
Polygon bufferResult = null;
if(geometry == null || distance == null){
throw new IllegalArgumentException("参数输入有误");

19
src/test/java/com/gis3c/spatial/App.java
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@ -37,13 +37,18 @@ public class App {
ApplicationContext context = ApplicationInit();
Point start = GeometryUtilities.CreatePoint(118.024444,36.802778);
Point end = GeometryUtilities.CreatePoint(118.027777,36.759166);
try {
System.out.println(GeometryUtilities.PointDistance(start,end));
} catch (TransformException | FactoryException e) {
e.printStackTrace();
}
List<Double> data = new ArrayList<>(Arrays.asList(new Double[]{1.1,2.1,3.1}));
Double result = data.stream().max(Comparator.naturalOrder()).get();
System.out.println(result);
// Point start = GeometryUtilities.CreatePoint(118.024444,36.802778);
// Point end = GeometryUtilities.CreatePoint(118.027777,36.759166);
// try {
// System.out.println(GeometryUtilities.PointDistance(start,end));
// } catch (TransformException | FactoryException e) {
// e.printStackTrace();
// }
// List<Region> regionList = regionService.findRegionsByParentCode("370000");