火点重构-完善地物类型百分比
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parent
966835c304
commit
e2a7b8aff8
90
pom.xml
90
pom.xml
@ -35,6 +35,7 @@
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<dysmsapi20170525.version>2.0.4</dysmsapi20170525.version>
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<hutool-all.version>4.4.3</hutool-all.version>
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<tus-client.version>0.4.0</tus-client.version>
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<geotools.version>28.2</geotools.version>
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</properties>
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<dependencies>
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@ -255,8 +256,97 @@
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<version>1.13.1</version>
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</dependency>
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<dependency>
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<groupId>org.geotools</groupId>
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<artifactId>gt-xml</artifactId>
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<version>${geotools.version}</version>
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</dependency>
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<dependency>
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<groupId>org.geotools</groupId>
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<artifactId>gt-shapefile</artifactId>
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<version>${geotools.version}</version>
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</dependency>
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<dependency>
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<groupId>org.geotools</groupId>
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<artifactId>gt-main</artifactId>
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<version>${geotools.version}</version>
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<exclusions>
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<exclusion>
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<artifactId>jts-core</artifactId>
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<groupId>org.locationtech.jts</groupId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>org.geotools.xsd</groupId>
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<artifactId>gt-xsd-sld</artifactId>
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<version>${geotools.version}</version>
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</dependency>
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<dependency>
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<groupId>org.geotools</groupId>
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<artifactId>gt-swing</artifactId>
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<version>${geotools.version}</version>
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<exclusions>
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<exclusion>
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<artifactId>jts-core</artifactId>
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<groupId>org.locationtech.jts</groupId>
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</exclusion>
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<exclusion>
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<artifactId>guava</artifactId>
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<groupId>com.google.guava</groupId>
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</exclusion>
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</exclusions>
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</dependency>
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<dependency>
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<groupId>org.geotools</groupId>
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<artifactId>gt-geojson</artifactId>
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<version>${geotools.version}</version>
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</dependency>
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<dependency>
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<groupId>org.geotools</groupId>
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<artifactId>gt-epsg-hsql</artifactId>
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<version>${geotools.version}</version>
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</dependency>
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<dependency>
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<groupId>org.geotools.jdbc</groupId>
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<artifactId>gt-jdbc-postgis</artifactId>
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<version>${geotools.version}</version>
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</dependency>
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</dependencies>
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<repositories>
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<repository>
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<id>osgeo</id>
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<name>OSGeo Release Repository</name>
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<url>https://repo.osgeo.org/repository/release/</url>
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<snapshots>
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<enabled>false</enabled>
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</snapshots>
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<releases>
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<enabled>true</enabled>
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</releases>
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</repository>
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<repository>
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<id>osgeo-snapshot</id>
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<name>OSGeo Snapshot Repository</name>
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<url>https://repo.osgeo.org/repository/snapshot/</url>
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<snapshots>
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<enabled>true</enabled>
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</snapshots>
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<releases>
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<enabled>false</enabled>
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</releases>
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</repository>
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</repositories>
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<build>
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<resources>
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<resource>
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123
src/main/java/com/xkrs/utilsnew/BufferAnalysisUtils.java
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123
src/main/java/com/xkrs/utilsnew/BufferAnalysisUtils.java
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package com.xkrs.utilsnew;
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import org.apache.hc.core5.util.TextUtils;
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import org.geotools.data.simple.SimpleFeatureCollection;
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import org.geotools.data.simple.SimpleFeatureIterator;
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import org.geotools.filter.text.cql2.CQL;
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import org.geotools.filter.text.cql2.CQLException;
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import org.locationtech.jts.geom.*;
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import org.locationtech.jts.operation.buffer.BufferParameters;
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import org.opengis.feature.simple.SimpleFeature;
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import org.opengis.filter.Filter;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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public class BufferAnalysisUtils {
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private BufferAnalysisUtils() {
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}
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public static void main(String[] args) throws CQLException {
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String shapeFilePath = "/Users/liuchengqian/Desktop/data/shandong_land_type_2022.shp";
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SimpleFeatureCollection simpleFeatureCollection = ShpFileUtils.readShpFileFeatureCollection(shapeFilePath);
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double longitude = 116.218;//经度
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double latitude = 36.0852;//纬度
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double distance = getBufferDistance(1500L);// buffer 宽度 1.5公里
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GeometryFactory geometryFactory = new GeometryFactory(new PrecisionModel(PrecisionModel.FLOATING), 4326);
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Coordinate[] coordinates = new Coordinate[]{new Coordinate(longitude, latitude)};
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Point point = new Point(geometryFactory.getCoordinateSequenceFactory().create(coordinates), geometryFactory);
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Geometry pointBuffer = point.buffer(distance, 40, BufferParameters.CAP_ROUND);
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String pointBufferWkt = pointBuffer.toText();
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double pointBufferArea = pointBuffer.getArea();//总面积
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// 相交过滤
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Filter intersectsFilter = CQL.toFilter(String.format("INTERSECTS(the_geom, %s)", pointBufferWkt));
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SimpleFeatureCollection filterSimpleFeatureCollection = simpleFeatureCollection.subCollection(intersectsFilter);
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//地物类型对应的字段
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String landTypeProperty = "tblxmc";
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String defaultLandType = "其它";
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List<String> targetLandTypeList = new ArrayList<>();
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targetLandTypeList.add("林地");
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targetLandTypeList.add("农作物");
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targetLandTypeList.add("水域");
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targetLandTypeList.add("建筑物");
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targetLandTypeList.add("水产养殖设施农用地");
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// targetLandTypeList.add("其他土地");
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Map<String, Double> targetLandTypeAreaMap = new HashMap<>();
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for (String targetLandType : targetLandTypeList) {
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targetLandTypeAreaMap.put(targetLandType, 0D);
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}
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SimpleFeatureIterator featureIterator = filterSimpleFeatureCollection.features();
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while (featureIterator.hasNext()) {
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try {
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SimpleFeature simpleFeature = featureIterator.next();
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if (simpleFeature == null) {
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System.out.println("simpleFeature == null");
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continue;
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}
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Geometry geometry = (Geometry) simpleFeature.getDefaultGeometry();
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if (geometry == null) {
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System.out.println("geometry == null");
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continue;
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}
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String landType = simpleFeature.getProperty(landTypeProperty).getValue().toString().trim();
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if (TextUtils.isEmpty(landType) || (!targetLandTypeAreaMap.containsKey(landType))) {
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System.out.println("!targetLandTypeMap.containsKey(landType)， landType = " + landType);
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continue;
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}
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// 检查多边形是否存在自相交或重叠的情况，如果有则修复
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Geometry geometryBuffer = geometry.buffer(0D);
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if (!pointBuffer.intersects(geometryBuffer)) {
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System.out.println("!pointBuffer.intersects(geometryBuffer)");
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continue;
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}
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Geometry intersectGeometry = pointBuffer.intersection(geometryBuffer);
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if (intersectGeometry == null) {
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System.out.println("intersectGeometry == null");
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continue;
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}
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double intersectArea = intersectGeometry.getArea();
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if (intersectArea < 0D) {
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System.out.println("intersectArea < 0");
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continue;
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}
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targetLandTypeAreaMap.put(landType, targetLandTypeAreaMap.get(landType) + intersectArea);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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double targetLandAreaSum = 0D;
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StringBuilder builder = new StringBuilder();
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for (String targetLandType : targetLandTypeList) {
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double currentArea = targetLandTypeAreaMap.get(targetLandType);
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targetLandAreaSum += currentArea;
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builder.append(targetLandType);
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builder.append("=");
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builder.append(formatDoublePer(currentArea / pointBufferArea));
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builder.append(", ");
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}
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builder.append(defaultLandType);
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builder.append("=");
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builder.append(formatDoublePer((pointBufferArea - targetLandAreaSum) / pointBufferArea));
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String result = builder.toString();
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System.out.println(result);
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}
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public static final int RADIUS = 6377830;
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private static double getBufferDistance(long meter) {
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return meter * 180.D / Math.PI / RADIUS;
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}
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private static final DecimalFormat decimalFormat = new DecimalFormat("0.00");
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private static String formatDoublePer(double value) {
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return decimalFormat.format(Math.abs(value) * 100D) + "%";
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}
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}
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50
src/main/java/com/xkrs/utilsnew/ShpFileUtils.java
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50
src/main/java/com/xkrs/utilsnew/ShpFileUtils.java
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@ -0,0 +1,50 @@
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package com.xkrs.utilsnew;
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import org.geotools.data.FeatureSource;
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import org.geotools.data.Query;
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import org.geotools.data.shapefile.ShapefileDataStore;
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import org.geotools.data.simple.SimpleFeatureCollection;
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import org.geotools.geometry.jts.ReferencedEnvelope;
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import org.opengis.feature.type.AttributeDescriptor;
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import org.opengis.feature.type.GeometryType;
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import org.opengis.referencing.crs.CoordinateReferenceSystem;
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import java.io.File;
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import java.io.IOException;
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import java.nio.charset.StandardCharsets;
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import java.util.List;
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public class ShpFileUtils {
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private ShpFileUtils() {
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}
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public static SimpleFeatureCollection readShpFileFeatureCollection(String shpPath) {
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File shpFile = new File(shpPath);
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SimpleFeatureCollection simpleFeatureCollection = null;
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try {
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ShapefileDataStore shapefileDataStore = new ShapefileDataStore(shpFile.toURI().toURL());
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// 设置编码,防止属性的中文字符出现乱码
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shapefileDataStore.setCharset(StandardCharsets.UTF_8);
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// 这个typeNamae不传递，默认是文件名称
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FeatureSource featuresource = shapefileDataStore.getFeatureSource(shapefileDataStore.getTypeNames()[0]);
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// 读取bbox
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ReferencedEnvelope bbox = featuresource.getBounds();
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// 读取投影
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CoordinateReferenceSystem crs = featuresource.getSchema().getCoordinateReferenceSystem();
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// 特征总数
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int count = featuresource.getCount(Query.ALL);
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// 获取当前数据的geometry类型（点、线、面）
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GeometryType geometryType = featuresource.getSchema().getGeometryDescriptor().getType();
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// 读取要素
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simpleFeatureCollection = (SimpleFeatureCollection) featuresource.getFeatures();
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// 获取当前矢量数据有哪些属性字段值
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List<AttributeDescriptor> attributes = simpleFeatureCollection.getSchema().getAttributeDescriptors();
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} catch (IOException e) {
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e.printStackTrace();
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}
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System.out.println("读取完成！");
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return simpleFeatureCollection;
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}
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}
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