Question

我正在尝试在我的C ++代码中设置netCDF，以将数据转换为多种数据类型以便于转换。我有一个c库的预构建版本，并且已经从gitHub下载了cxx4版本。但是，每当我尝试调用这些函数时，都会收到外部引用错误，这表明未包含必需的库。

我遵循了从多个不同答案中回答相似问题的步骤，但是没有一个对我有用。

我已将所有库，bin和include文件夹包括在必要的目录中，并将它们放在项目的属性中。我还将所有.lib文件包括在其他依赖项中，包括netcdf.lib。

当我查看项目的外部依赖项时，我可以在那里找到所有文件，但是程序似乎在以某种方式访问它们时遇到了问题。不知道是什么问题。

#pragma once
#include <stdlib.h>
#include <stdio.h>

/* This is part of the netCDF package.
   Copyright 2006 University Corporation for Atmospheric Research/Unidata.
   See COPYRIGHT file for conditions of use.

   This is a very simple example which writes a 2D array of
   sample data. To handle this in netCDF we create two shared
   dimensions, "x" and "y", and a netCDF variable, called "data".

   This example is part of the netCDF tutorial:
   http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-tutorial

   Full documentation of the netCDF C++ API can be found at:
   http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-cxx

   $Id: simple_xy_wr.cpp,v 1.5 2010/02/11 22:36:43 russ Exp $
*/

#include <iostream>
#include <netcdf>
#include <vector>
using namespace std;
using namespace netCDF;
//using namespace netCDF::exceptions;

// We are writing 2D data, a 6 x 12 grid. 
static const int NX = 6;
static const int NY = 12;

// Return this in event of a problem.
static const int NC_ERR = 2;



class netCDFTest
{
public:
    netCDFTest() {

    }

    ~netCDFTest()
    {

    }

    void TestNetCDF()
    {
        // This is the data array we will write. It will just be filled
        // with a progression of numbers for this example.
        int dataOut[NX][NY];

        // Create some pretend data. If this wasn't an example program, we
        // would have some real data to write, for example, model output.
        for (int i = 0; i < NX; i++)
            for (int j = 0; j < NY; j++)
                dataOut[i][j] = i * NY + j;

        // The default behavior of the C++ API is to throw an exception i
        // an error occurs. A try catch block is necessary.

        try
        {
            // Create the file. The Replace parameter tells netCDF to overwrite
            // this file, if it already exists.
            NcFile dataFile("simple_xy.nc", NcFile::replace);

            // Create netCDF dimensions
            NcDim xDim = dataFile.addDim("x", NX);
            NcDim yDim = dataFile.addDim("y", NY);

            // Define the variable. The type of the variable in this case is
            // ncInt (32-bit integer).
            vector<NcDim> dims;
            dims.push_back(xDim);
            dims.push_back(yDim);
            NcVar data = dataFile.addVar("data", ncInt, dims);

            // Write the data to the file. Although netCDF supports
            // reading and writing subsets of data, in this case we write all
            // the data in one operation.
            data.putVar(dataOut);

            // The file will be automatically close when the NcFile object goes
            // out of scope. This frees up any internal netCDF resources
            // associated with the file, and flushes any buffers.

            cout << "*** SUCCESS writing example file simple_xy.nc!" << endl;

        }
        catch (string err)
        {

            cout << "The error is: " << err;
        }
    }
};

我试图复制它们只是一个简单的示例，希望它可以将数据输出到文件中，但是，它仅返回未解决的外部符号错误，如下所示。

unresolved external symbol "public: void __thiscall netCDF::NcVar::putVar(void const *)const " (?putVar@NcVar@netCDF@@QBEXPBX@Z) referenced in function "public: void __thiscall netCDFTest::TestNetCDF(void)" (?TestNetCDF@netCDFTest@@QAEXXZ)

我知道这是一个图书馆问题，但对于如何解决它一无所知。

任何帮助将不胜感激。

在Visual Studio 2017的C ++代码中包含netcdf 4.6.3库时遇到问题

0 个答案: