CCfits库演示代码不起作用 [英] CCfits library demo code not working

问题描述

我是C ++的新手。最终，我试图翻译python的一些代码，以便对一些超新星的模拟进行分析。但是，为了做到这一点，我必须能够将.fits文件作为数组导入到我的C ++代码中。我下载了cfitsio和ccfits库，并且它们似乎已经正确安装，因为包含 #include 的简单代码和一个带打印语句的int main在它编译和运行。但是，从NASA获取演示代码（ http：//heasarc.gsfc。 nasa.gov/fitsio/CCfits/html/readimage.html ），名称已更改为我希望打开的.fits文件（位于我的主目录中）以使用这些库导入.fits文件doesn'编译。我使用的确切代码（Sobelattempt.cc）是：



  #include  #include< iostream> 
 #include< cmath> 
 #include< memory> 
使用命名空间CCfits; 
 int readimage（）
 {
 std :: auto_ptr< FITS> pInfile（新FITS（Supernova45F.fits，Read，true））; 
 
 PHDU&图像= pInfile-> pHDU（）; 
 
 std :: valarray< unsigned long>内容; 
 
 //读取图像中的所有用户指定，坐标和校验和键
 image.readAllKeys（）; 
 
 image.read（contents）; 
 
 //这不会打印数据，只是标题信息。 
 std :: cout<<图像<<的std :: ENDL; 
 
 long ax1（image.axis（0））; 
 long ax2（image.axis（1））; 
 
 for（long j = 0; j  {
 std :: ostream_iterator< short> C（标准:: COUT， \t）; 
 std :: copy（& contents [j * ax1]，& contents [（j + 1）* ax1-1]，c）; 
 std :: cout<< \\\
; 
} 
 
 std :: cout<<的std :: ENDL; 
返回0; 
} 
 
 int main（）{
 return 0; 
} 
  

我正在使用以下命令进行编译：

  g ++ Sobelattempt.cc -o Sobel -I / home / Sam / CCfits -I / home / Sam / cfitsio 
  
 
 
 
我得到以下错误： 
 
 
  / tmp /ccS0m6h4.o：在函数`readimage（）'中：
 Sobelattempt.cc:(.text+0x69）：对CCfits :: FITS :: FITS（std :: basic_string< char，std :: char_traits<炭>中的std ::分配器<炭>>常量&安培;, CCfits :: RWmode，布尔，性病::矢量<标准:: basic_string的<炭，性病:: char_traits<炭>中的std ::分配器<炭> ;>，std :: allocator< std :: basic_string< char，std :: char_traits< char>，std :: allocator< char>>> const&）'
 Sobelattempt.cc :( （）.text + 0x15e）：未定义的引用'CCfits :: FITS :: pHDU（）'
 Sobelattempt.cc:(.text+0x17d）：未定义的引用'CCfits :: HDU :: readAllKeys（）'
 /tmp/ccS0m6h4.o：在函数`std :: auto_ptr< CCfits :: FITS> ::〜auto_ptr（）'中：
 Sobelattempt.cc:(.text._ZNSt8auto_ptrIN6CCfits4FITSEED2Ev[_ZNSt8auto_ptrIN6CCfits4FITSEED5Ev]+0x1d）：未定义的引用`CCfits :: FITS ::〜FITS（）'
 /tmp/ccS0m6h4.o：在函数`void CCfits： ：PHDU :: read< unsigned long>（std :: valarray< unsigned long&; long，long，unsigned long *）'：
 Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits :: PHDU :: read< unsigned long>（std :: valarray< unsigned long>&; long，long，unsigned long *）] + 0x73）：未定义对`typeinfo for CCfits :: PHDU'的引用
 Sobelattempt.cc :( .text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_ [void CCfits :: PHDU :: read< unsigned long>（std :: valarray< unsigned long&; long，long，unsigned long *）] + 0x12f）：未定义的typeinfo CCfits :: PHDU'
 Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits :: PHDU :: read< unsigned long>（std :: valarray< unsigned long>&; long，long，unsigned long * ）] + 0x20d）：未定义参考`所属类别为CCfits :: PHDU 
 Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits :: PHDU ::读取<无符号长>（标准::的valarray<无符号长>&安培;，long，long，unsigned long *）] + 0x2ec）：未定义的引用'typeinfo for CCfits :: PHDU'
 Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits :: PHDU :: read< unsigned long>（std :: valarray< unsigned long>&; long，long，unsigned long *）] + 0x3b5）：未定义的引用'CCfits :: ULBASE'
 Sobelattempt.cc :( .text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_ [ void CCfits :: PHDU :: read< unsigned long>（std :: valarray< unsigned long>; long，long，unsigned long *）] + 0x435）：未定义引用'typeinfo for CCfits :: PHDU'
 Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits :: PHDU :: read< unsigned long>（std :: valarray< unsigned long>&; long，long，unsigned long *）] + 0x4 D1）：未定义参考`所属类别为CCfits :: PHDU 
 Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits :: PHDU ::读取<无符号长>（标准::的valarray<无符号长>&安培;，long，long，unsigned long *）] + 0x59d）：对CCfits :: USBASE的未定义引用
 Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits :: PHDU :: read< unsigned long> （std :: valarray< unsigned long>&; long，long，unsigned long *）] + 0x61d）：未定义的引用'typeinfo for CCfits :: PHDU'
 Sobelattempt.cc :( .text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_ [ void CCfits :: PHDU :: read< unsigned long>（std :: valarray< unsigned long>&; long，long，unsigned long *）] + 0x6b9）：未定义引用'typeinfo for CCfits :: PHDU'
 Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits :: PHDU :: read< unsigned long>（std :: valarray< unsigned long&; long，long，unsigned long *）] + 0x77f） ：未定义的引用`CCfits :: FitsFatal :: FitsFatal（std :: basic_string< char，std :: char_traits< char> ;, std :: allocator< char> > ）'
 /tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUImEE[typeinfo for CCfits :: PrimaryHDU< unsigned long>] + 0x10）：未定义的引用'typeinfo for CCfits :: PHDU'
 /tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUIsEE[typeinfo for CCfits :: PrimaryHDU< short> + 0x10）：未定义的引用'typeinfo for CCfits :: PHDU'
 /tmp/ccS0m6h4.o： （.rodata._ZTIN6CCfits10PrimaryHDUItEE [所属类别为CCfits :: PrimaryHDU<无符号短>] + 0×10）：未定义参考`所属类别为CCfits :: PHDU 
 /tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUIiEE[typeinfo对于CCfits :: PrimaryHDU< int>] + 0x10）：未定义的对'CCinfo :: PHDU'的typeinfo引用
 /tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUIjEE[typeinfo for CCfits :: PrimaryHDU< unsigned int> ;] + 0x10）：未定义的`typeinfo for CCfits :: PHDU'引用
 /tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUIhEE[typeinfo for CCfits :: PrimaryHDU< unsigned char>] + 0x10）：more undefined ref对于CCfits :: PHDU的`typeinfo'参数跟随
 collect2：ld返回1退出状态
  
 
 
解决方案
链接到CCfits库的两个链接器选项是-lCCfits -lcfitsio。另外，如果LD_LIBRARY_PATH不包含具有这两个库的目录，则可能需要-L ...标志
。
 
I'm new to C++. Ultimately, I'm trying to translate some code from python in order to perform analysis on some simulations of supernovae. However, in order to do this, I have to be able to import .fits files into my C++ code as an array. I downloaded the cfitsio and ccfits libraries, and they appear to be installed correctly given that a simple code consisting of an #include <CCfits> and an int main with a print statement in it compiles and runs. However, taking the demo code from NASA (http://heasarc.gsfc.nasa.gov/fitsio/CCfits/html/readimage.html) with the name changed to the .fits file I wish to open (which is in my home directory) to import a .fits file using these libraries doesn't compile. The precise code I'm using (Sobelattempt.cc) is:
#include <CCfits>
#include <iostream>
#include <cmath>
#include <memory>
using namespace CCfits;
int readimage()
{
     std::auto_ptr<FITS> pInfile(new FITS("Supernova45F.fits",Read,true));

     PHDU& image=pInfile->pHDU(); 

     std::valarray<unsigned long>  contents;

     // read all user-specifed, coordinate, and checksum keys in the image
     image.readAllKeys();

     image.read(contents);

     // this doesn't print the data, just header info.
     std::cout << image << std::endl;

     long ax1(image.axis(0));
     long ax2(image.axis(1));

     for (long j = 0; j < ax2; j+=10)
     {
             std::ostream_iterator<short> c(std::cout,"\t");
             std::copy(&contents[j*ax1],&contents[(j+1)*ax1-1],c);
             std::cout << '\n';       
     }

     std::cout << std::endl;
      return 0;   
}

int main(){
return 0;
}
I'm compiling using the command:
g++ Sobelattempt.cc -o Sobel -I/home/Sam/CCfits -I/home/Sam/cfitsio
And I get the errors:
/tmp/ccS0m6h4.o: In function `readimage()':
Sobelattempt.cc:(.text+0x69): undefined reference to `CCfits::FITS::FITS(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, CCfits::RWmode, bool, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)'
Sobelattempt.cc:(.text+0x15e): undefined reference to `CCfits::FITS::pHDU()'
Sobelattempt.cc:(.text+0x17d): undefined reference to `CCfits::HDU::readAllKeys()'
/tmp/ccS0m6h4.o: In function `std::auto_ptr<CCfits::FITS>::~auto_ptr()':
Sobelattempt.cc:(.text._ZNSt8auto_ptrIN6CCfits4FITSEED2Ev[_ZNSt8auto_ptrIN6CCfits4FITSEED5Ev]+0x1d): undefined reference to `CCfits::FITS::~FITS()'
/tmp/ccS0m6h4.o: In function `void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)':
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x73): undefined reference to `typeinfo for CCfits::PHDU'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x12f): undefined reference to `typeinfo for CCfits::PHDU'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x20d): undefined reference to `typeinfo for CCfits::PHDU'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x2ec): undefined reference to `typeinfo for CCfits::PHDU'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x3b5): undefined reference to `CCfits::ULBASE'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x435): undefined reference to `typeinfo for CCfits::PHDU'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x4d1): undefined reference to `typeinfo for CCfits::PHDU'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x59d): undefined reference to `CCfits::USBASE'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x61d): undefined reference to `typeinfo for CCfits::PHDU'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x6b9): undefined reference to `typeinfo for CCfits::PHDU'
Sobelattempt.cc:(.text._ZN6CCfits4PHDU4readImEEvRSt8valarrayIT_EllPS3_[void CCfits::PHDU::read<unsigned long>(std::valarray<unsigned long>&, long, long, unsigned long*)]+0x77f): undefined reference to `CCfits::FitsFatal::FitsFatal(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUImEE[typeinfo for CCfits::PrimaryHDU<unsigned long>]+0x10): undefined reference to `typeinfo for CCfits::PHDU'
/tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUIsEE[typeinfo for CCfits::PrimaryHDU<short>]+0x10): undefined reference to `typeinfo for CCfits::PHDU'
/tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUItEE[typeinfo for CCfits::PrimaryHDU<unsigned short>]+0x10): undefined reference to `typeinfo for CCfits::PHDU'
/tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUIiEE[typeinfo for CCfits::PrimaryHDU<int>]+0x10): undefined reference to `typeinfo for CCfits::PHDU'
/tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUIjEE[typeinfo for CCfits::PrimaryHDU<unsigned int>]+0x10): undefined reference to `typeinfo for CCfits::PHDU'
/tmp/ccS0m6h4.o:(.rodata._ZTIN6CCfits10PrimaryHDUIhEE[typeinfo for CCfits::PrimaryHDU<unsigned char>]+0x10): more undefined references to `typeinfo for CCfits::PHDU' follow
collect2: ld returned 1 exit status

解决方案
The two linker options to link to the CCfits library are -lCCfits -lcfitsio . In addition, the -L... flag 
may be needed if the LD_LIBRARY_PATH does not cover the directory with these two libraries.

                        
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