• GDAL在VS2008 VC++中的配置


    GDAL在VS2008 VC++中的配置

     

    A prebuilt GDAL 1.4.1 library is available at:

     http://download.osgeo.org/gdal/win32/1.4.1/gdalwin32dev141.zip

    This should be unpacked on top of the executable package which includes the gdal14.dll:

     http://download.osgeo.org/gdal/win32/1.4.1/gdalwin32exe141.zip

    The dev package includes: * Include files in the gdalwin32-1.4.1\include directory. * An release (/MD /Ox) DLL (bin\gdal14.dll) and stub library (lib\gdal_i.lib).

    The DLL and stub libraries are built with Visual Studio.NET 2003 (VC 7.1), which is likely required for any use of the C++ API. The libraries should be compatible with any win32 C/C++ compiler if only the GDAL/OGR C API is used. No debug version is offered.

    1、下载GDAL库,新建VC++工程文件,在项目的属性对话框中找到{配置属性}→{C/C++}→{常规},在右侧的{附加包含目录}中,将下载到的GDAL库的include文件夹路径添加到这里:

     

    2、在{配置属性}→{链接器}→{常规}的{附加库目录}中,将下载到的GDAL库的lib文件夹填写入:

     

    3、在{配置属性}→{链接器}→{输入}中的{附加依赖项}中,填入lib文件夹下的gdal_i.lib文件名。

     

    4、现在可以进行编译,但是在运行的过程中,会出现“gdal14.dll”缺失的问题。将下载到的gdalwin32exe141.zip中的bin文件夹下的gdal14.dll解压到编译成的debug文件夹下,运行成功。

     

    测试代码:

    View Code
      1 #include <stdio.h> //官方提供的代码中缺少这项,编译错误
      2 
      3 #include "gdal_priv.h"
      4 
      5 #include "cpl_conv.h" //for CPLMalloc()
      6 
      7  
      8 
      9 int main()
     10 
     11 {
     12 
     13     //注册文件格式
     14 
     15     GDALAllRegister();
     16 
     17   
     18 
     19     const char* pszFile = "C:\\Test.img";
     20 
     21     GDALDataset *poDataset;
     22 
     23     //使用只读方式打开图像
     24 
     25     poDataset = (GDALDataset*) GDALOpen( pszFile,GA_ReadOnly );
     26 
     27     if( poDataset == NULL )
     28 
     29     {
     30 
     31         printf( "File: %s不能打开!\n",pszFile);
     32 
     33         return 0;
     34 
     35     }
     36 
     37  
     38 
     39     //输出图像的格式信息
     40 
     41     printf( "Driver:%s/%s\n",
     42 
     43         poDataset->GetDriver()->GetDescription(),
     44 
     45         poDataset->GetDriver()->GetMetadataItem( GDAL_DMD_LONGNAME) );
     46 
     47  
     48 
     49     //输出图像的大小和波段个数
     50 
     51     printf( "Size is%dx%dx%d\n",
     52 
     53         poDataset->GetRasterXSize(),poDataset->GetRasterYSize(),
     54 
     55         poDataset->GetRasterCount());
     56 
     57  
     58 
     59     //输出图像的投影信息
     60 
     61     if( poDataset->GetProjectionRef() != NULL )
     62 
     63         printf( "Projectionis `%s'\n", poDataset->GetProjectionRef() );
     64 
     65  
     66 
     67     //输出图像的坐标和分辨率信息
     68 
     69     double adfGeoTransform[6];
     70 
     71     if( poDataset->GetGeoTransform( adfGeoTransform) == CE_None )
     72 
     73     {
     74 
     75         printf( "Origin =(%.6f,%.6f)\n",
     76 
     77             adfGeoTransform[0], adfGeoTransform[3]);
     78 
     79  
     80 
     81         printf( "PixelSize = (%.6f,%.6f)\n",
     82 
     83             adfGeoTransform[1], adfGeoTransform[5]);
     84 
     85     }
     86 
     87  
     88 
     89     GDALRasterBand *poBand;
     90 
     91     int            nBlockXSize, nBlockYSize;
     92 
     93     int            bGotMin, bGotMax;
     94 
     95     double         adfMinMax[2];
     96 
     97  
     98 
     99     //读取第一个波段
    100 
    101     poBand = poDataset->GetRasterBand( 1 );
    102 
    103  
    104 
    105     //获取图像的块大小并输出
    106 
    107     poBand->GetBlockSize(&nBlockXSize, &nBlockYSize );
    108 
    109     printf( "Block=%dx%dType=%s, ColorInterp=%s\n",
    110 
    111         nBlockXSize, nBlockYSize,
    112 
    113         GDALGetDataTypeName(poBand->GetRasterDataType()),
    114 
    115         GDALGetColorInterpretationName(
    116 
    117         poBand->GetColorInterpretation()));
    118 
    119  
    120 
    121     //获取该波段的最大值最小值,如果获取失败,则进行统计
    122 
    123     adfMinMax[0] = poBand->GetMinimum( &bGotMin);
    124 
    125     adfMinMax[1] = poBand->GetMaximum( &bGotMax);
    126 
    127  
    128 
    129     if( ! (bGotMin&& bGotMax) )
    130 
    131         GDALComputeRasterMinMax((GDALRasterBandH)poBand, TRUE, adfMinMax);
    132 
    133  
    134 
    135     printf( "Min=%.3fd,Max=%.3f\n", adfMinMax[0], adfMinMax[1] );
    136 
    137  
    138 
    139     //输出图像的金字塔信息
    140 
    141     if( poBand->GetOverviewCount() > 0 )
    142 
    143         printf( "Band has%d overviews.\n", poBand->GetOverviewCount() );
    144 
    145  
    146 
    147     //输出图像的颜色表信息
    148 
    149     if( poBand->GetColorTable() != NULL)
    150 
    151         printf( "Band hasa color table with %d entries.\n",
    152 
    153         poBand->GetColorTable()->GetColorEntryCount() );
    154 
    155  
    156 
    157     float *pafScanline;
    158 
    159     int   nXSize = poBand->GetXSize();
    160 
    161   
    162 
    163     //读取图像的第一行数据
    164 
    165     pafScanline = (float*) CPLMalloc(sizeof(float)*nXSize);
    166 
    167     poBand->RasterIO(GF_Read, 0, 0, nXSize,1,
    168 
    169         pafScanline, nXSize,1, GDT_Float32, 0, 0 );
    170 
    171  
    172 
    173     CPLFree(pafScanline);
    174 
    175  
    176 
    177     //关闭文件
    178 
    179     GDALClose((GDALDatasetH)poDataset);
    180 
    181 }

     运行结果:

     参考链接:http://blog.csdn.net/liminlu0314/article/details/7072007#t2

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  • 原文地址:https://www.cnblogs.com/huanzi/p/2731197.html
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