<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <groupId>nc</groupId>

    <artifactId>nctest</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <packaging>jar</packaging>

    <name>nctest</name>

    <url>http://maven.apache.org</url>

    <properties>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

    </properties>

    <!-- 设定主仓库，按设定顺序进行查找。 -->

    <repositories>

        <repository>

            <id>jeesite-repos</id>

            <name>Jeesite Repository</name>

            <url>http://maven.aliyun.com/nexus/content/groups/public</url>

        </repository>

    </repositories>

    <dependencies>

        <dependency>

            <groupId>edu.ucar</groupId>

            <artifactId>netcdf</artifactId>

            <version>4.2.20</version>

        </dependency>

        <!--

        <dependency>

            <groupId>edu.ucar</groupId>

            <artifactId>netcdf4</artifactId>

            <version>4.5.5</version>

        </dependency>

         -->

        <dependency>

            <groupId>org.apache.commons</groupId>

            <artifactId>com.springsource.org.apache.commons.lang</artifactId>

            <version>2.6.0</version>

        </dependency>

        <dependency>

            <groupId>org.apache.directory.studio</groupId>

            <artifactId>org.apache.commons.io</artifactId>

            <version>2.4</version>

        </dependency>

        <dependency>

            <groupId>junit</groupId>

            <artifactId>junit</artifactId>

            <version>4.11</version>

            <scope>test</scope>

        </dependency>

    </dependencies>

</project>

package nc.test.netCDF3;

import java.io.IOException;

import ucar.ma2.Array;

import ucar.nc2.NCdumpW;

import ucar.nc2.NetcdfFile;

import ucar.nc2.Variable;

public class Read3DNetCDF {

    public static void main(String[] args) {

        String filename = "c:\\nunu\\nc\\HNDW1KM-north-2016090204-70m.nc";

        NetcdfFile ncfile = null;

        try {

            ncfile = NetcdfFile.open(filename);

            String variable = "wd70";

            Variable varBean = ncfile.findVariable(variable);

            // read all data

            if (null != varBean) {

                Array all = varBean.read();

                System.out.println(all.getSize());

                //System.out.println("读取所有：\n" + NCdumpW.printArray(all, variable, null));

            }

            if (null != varBean) {

                int[] origin = new int[] { 2, 1, 1 };

                int[] size = new int[] { 50, 50, 50 };

                Array data2D = varBean.read(origin, size);

                System.out.println(

                        "读取从第一维的0开始,第二维从1开始,第三维从1开始,数量分别为2,2,2：\n" + NCdumpW.printArray(data2D, variable, null));

            }

            // invoke reduce trans 3D to 2D

            if (null != varBean) {

                int[] origin = new int[] { 12, 1, 1 };

                int[] size = new int[] { 1, 2, 2 };

                Array data2D = varBean.read(origin, size).reduce().reduce();

                System.out.println(

                        "读取从第一维的0开始,第二维从1开始,第三维从1开始,数量分别为1,2,2并转为二维：\n" + NCdumpW.printArray(data2D, variable, null));

            }

        } catch (Exception ioe) {

            ioe.printStackTrace();

        } finally {

            if (null != ncfile)

                try {

                    ncfile.close();

                } catch (IOException ioe) {

                }

        }

    }

}

package nc.test.netCDF3;

import java.io.IOException;

import java.util.ArrayList;

import ucar.ma2.Array;

import ucar.ma2.DataType;

import ucar.nc2.Dimension;

import ucar.nc2.NetcdfFileWriteable;

public class Create3DNetCDF {

    public static void main(String[] args) throws Exception {

        String filename = "c:\\nunu\\nc\\test3D.nc";

        NetcdfFileWriteable ncfile = NetcdfFileWriteable.createNew(filename, true); // add

        Dimension timeDim = ncfile.addDimension("time", 2);

        Dimension latDim = ncfile.addDimension("lat", 3);

        Dimension lonDim = ncfile.addDimension("lon", 3); // define

        ArrayList dims = new ArrayList();

        dims.add(timeDim);

        dims.add(latDim);

        dims.add(lonDim);

        ncfile.addVariable("temperature", DataType.DOUBLE, dims);

        ncfile.addVariableAttribute("temperature", "units", "K"); // add a

        Array data = Array.factory(int.class, new int[] { 3 }, new int[] { 1, 2, 3 });

        ncfile.addVariableAttribute("temperature", "scale", data);

        try {

            ncfile.create();

        } catch (IOException e) {

            System.err.println("ERROR creating file " + ncfile.getLocation() + "\n" + e);

        }

    }

}

package nc.test.netCDF3;

import java.io.IOException;

import ucar.ma2.ArrayDouble;

import ucar.ma2.Index;

import ucar.ma2.InvalidRangeException;

import ucar.nc2.Dimension;

import ucar.nc2.NetcdfFileWriteable;

public class Write3DNetCDF {

    public static void main(String[] args) throws IOException {

        NetcdfFileWriteable ncfile = NetcdfFileWriteable.openExisting("c:\\nunu\\nc\\test3D.nc", true);

        Dimension timeDim = ncfile.getDimensions().get(0);

        Dimension latDim = ncfile.getDimensions().get(1);

        Dimension lonDim = ncfile.getDimensions().get(2);

        ArrayDouble A = new ArrayDouble.D3(timeDim.getLength(), latDim.getLength(), lonDim.getLength());

        int k, i, j;

        Index ima = A.getIndex();

        for (k = 0; k < timeDim.getLength(); k++) {

            for (i = 0; i < latDim.getLength(); i++) {

                for (j = 0; j < lonDim.getLength(); j++) {

                    A.setDouble(ima.set(k, i, j), (double) (k + i + j));

                }

            }

        }

        int[] origin = new int[3];

        try {

            ncfile.write("temperature", origin, A);

            ncfile.close();

        } catch (IOException e) {

            System.err.println("ERROR writing file");

        } catch (InvalidRangeException e) {

            e.printStackTrace();

        }

    }

}