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C++ VRTDataset::SetGCPs方法代码示例

本文整理汇总了C++中VRTDataset::SetGCPs方法的典型用法代码示例。如果您正苦于以下问题：C++ VRTDataset::SetGCPs方法的具体用法？C++ VRTDataset::SetGCPs怎么用？C++ VRTDataset::SetGCPs使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类VRTDataset的用法示例。


在下文中一共展示了VRTDataset::SetGCPs方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: CPLAssert


//.........这里部分代码省略.........
    {
        poVRTDS->SetGeoTransform( adfGeoTransform );
    }

/* -------------------------------------------------------------------- */
/*      Copy projection                                                 */
/* -------------------------------------------------------------------- */
    poVRTDS->SetProjection( poSrcDS->GetProjectionRef() );

/* -------------------------------------------------------------------- */
/*      Emit dataset level metadata.                                    */
/* -------------------------------------------------------------------- */
    poVRTDS->SetMetadata( poSrcDS->GetMetadata() );

/* -------------------------------------------------------------------- */
/*      Copy any special domains that should be transportable.          */
/* -------------------------------------------------------------------- */
    char **papszMD = poSrcDS->GetMetadata( "RPC" );
    if( papszMD )
        poVRTDS->SetMetadata( papszMD, "RPC" );

    papszMD = poSrcDS->GetMetadata( "IMD" );
    if( papszMD )
        poVRTDS->SetMetadata( papszMD, "IMD" );

    papszMD = poSrcDS->GetMetadata( "GEOLOCATION" );
    if( papszMD )
        poVRTDS->SetMetadata( papszMD, "GEOLOCATION" );

/* -------------------------------------------------------------------- */
/*      GCPs                                                            */
/* -------------------------------------------------------------------- */
    if( poSrcDS->GetGCPCount() > 0 )
    {
        poVRTDS->SetGCPs( poSrcDS->GetGCPCount(),
                          poSrcDS->GetGCPs(),
                          poSrcDS->GetGCPProjection() );
    }

/* -------------------------------------------------------------------- */
/*      Loop over all the bands.                                        */
/* -------------------------------------------------------------------- */
    for( int iBand = 0; iBand < poSrcDS->GetRasterCount(); iBand++ )
    {
        GDALRasterBand *poSrcBand = poSrcDS->GetRasterBand( iBand+1 );

/* -------------------------------------------------------------------- */
/*      Create the band with the appropriate band type.                 */
/* -------------------------------------------------------------------- */
        poVRTDS->AddBand( poSrcBand->GetRasterDataType(), NULL );

        VRTSourcedRasterBand *poVRTBand
            = reinterpret_cast<VRTSourcedRasterBand *>(
                poVRTDS->GetRasterBand( iBand+1 ) );

/* -------------------------------------------------------------------- */
/*      Setup source mapping.                                           */
/* -------------------------------------------------------------------- */
        poVRTBand->AddSimpleSource( poSrcBand );

/* -------------------------------------------------------------------- */
/*      Emit various band level metadata.                               */
/* -------------------------------------------------------------------- */
        poVRTBand->CopyCommonInfoFrom( poSrcBand );

/* -------------------------------------------------------------------- */
/*      Add specific mask band.                                         */
/* -------------------------------------------------------------------- */
        if( (poSrcBand->GetMaskFlags()
              & (GMF_PER_DATASET | GMF_ALL_VALID | GMF_NODATA)) == 0)
        {
            VRTSourcedRasterBand* poVRTMaskBand = new VRTSourcedRasterBand(
                poVRTDS, 0,
                poSrcBand->GetMaskBand()->GetRasterDataType(),
                poSrcDS->GetRasterXSize(), poSrcDS->GetRasterYSize());
            poVRTMaskBand->AddMaskBandSource( poSrcBand );
            poVRTBand->SetMaskBand( poVRTMaskBand );
        }
    }

/* -------------------------------------------------------------------- */
/*      Add dataset mask band                                           */
/* -------------------------------------------------------------------- */
    if( poSrcDS->GetRasterCount() != 0 &&
        poSrcDS->GetRasterBand(1) != NULL &&
        poSrcDS->GetRasterBand(1)->GetMaskFlags() == GMF_PER_DATASET )
    {
        GDALRasterBand *poSrcBand = poSrcDS->GetRasterBand(1);
        VRTSourcedRasterBand* poVRTMaskBand = new VRTSourcedRasterBand(
            poVRTDS, 0,
            poSrcBand->GetMaskBand()->GetRasterDataType(),
            poSrcDS->GetRasterXSize(), poSrcDS->GetRasterYSize() );
        poVRTMaskBand->AddMaskBandSource( poSrcBand );
        poVRTDS->SetMaskBand( poVRTMaskBand );
    }

    poVRTDS->FlushCache();

    return poVRTDS;
}
开发者ID:bbradbury，项目名称:lib_gdal，代码行数:101，代码来源:vrtdriver.cpp

示例2: ProxyMain


//.........这里部分代码省略.........
        adfGeoTransform[3] = adfULLR[1];
        adfGeoTransform[4] = 0.0;
        adfGeoTransform[5] = (adfULLR[3] - adfULLR[1]) / nOYSize;

        poVDS->SetGeoTransform(adfGeoTransform);
    }

    else if (GDALGetGeoTransform(hDataset, adfGeoTransform) == CE_None
             && nGCPCount == 0)
    {
        adfGeoTransform[0] += anSrcWin[0] * adfGeoTransform[1]
                              + anSrcWin[1] * adfGeoTransform[2];
        adfGeoTransform[3] += anSrcWin[0] * adfGeoTransform[4]
                              + anSrcWin[1] * adfGeoTransform[5];

        adfGeoTransform[1] *= anSrcWin[2] / (double) nOXSize;
        adfGeoTransform[2] *= anSrcWin[3] / (double) nOYSize;
        adfGeoTransform[4] *= anSrcWin[2] / (double) nOXSize;
        adfGeoTransform[5] *= anSrcWin[3] / (double) nOYSize;

        poVDS->SetGeoTransform(adfGeoTransform);
    }

    if (nGCPCount != 0)
    {
        const char *pszGCPProjection = pszOutputSRS;

        if (pszGCPProjection == NULL)
            pszGCPProjection = GDALGetGCPProjection(hDataset);

        if (pszGCPProjection == NULL)
            pszGCPProjection = "";

        poVDS->SetGCPs(nGCPCount, pasGCPs, pszGCPProjection);

        GDALDeinitGCPs(nGCPCount, pasGCPs);
        CPLFree(pasGCPs);
    }

    else if (GDALGetGCPCount(hDataset) > 0)
    {
        GDAL_GCP *pasGCPs;
        int      nGCPs = GDALGetGCPCount(hDataset);

        pasGCPs = GDALDuplicateGCPs(nGCPs, GDALGetGCPs(hDataset));

        for (i = 0; i < nGCPs; i++)
        {
            pasGCPs[i].dfGCPPixel -= anSrcWin[0];
            pasGCPs[i].dfGCPLine  -= anSrcWin[1];
            pasGCPs[i].dfGCPPixel *= (nOXSize / (double) anSrcWin[2]);
            pasGCPs[i].dfGCPLine  *= (nOYSize / (double) anSrcWin[3]);
        }

        poVDS->SetGCPs(nGCPs, pasGCPs,
                       GDALGetGCPProjection(hDataset));

        GDALDeinitGCPs(nGCPs, pasGCPs);
        CPLFree(pasGCPs);
    }

/* -------------------------------------------------------------------- */
/*      Transfer generally applicable metadata.                         */
/* -------------------------------------------------------------------- */
    poVDS->SetMetadata(((GDALDataset*)hDataset)->GetMetadata());
    AttachMetadata((GDALDatasetH) poVDS, papszMetadataOptions);
开发者ID:hyyh619，项目名称:OpenSceneGraph-3.4.0，代码行数:67，代码来源:gdal_translate.cpp

示例3: main


//.........这里部分代码省略.........
    if (padfScaleMin == NULL || padfScaleMax == NULL)
    {
        fprintf( stderr, "-equalize or -config filename command line options must be specified.\n");
        exit(1);
    }

/* ==================================================================== */
/*      Create a virtual dataset.                                       */
/* ==================================================================== */
    VRTDataset *poVDS;
    EnhanceCBInfo *pasEInfo = (EnhanceCBInfo *) 
        CPLCalloc(nBandCount, sizeof(EnhanceCBInfo));
        
/* -------------------------------------------------------------------- */
/*      Make a virtual clone.                                           */
/* -------------------------------------------------------------------- */
    poVDS = new VRTDataset( GDALGetRasterXSize(hDataset),
                            GDALGetRasterYSize(hDataset) );

    if( GDALGetGCPCount(hDataset) == 0 )
    {
        const char *pszProjection;
        double adfGeoTransform[6];

        pszProjection = GDALGetProjectionRef( hDataset );
        if( pszProjection != NULL && strlen(pszProjection) > 0 )
            poVDS->SetProjection( pszProjection );

        if( GDALGetGeoTransform( hDataset, adfGeoTransform ) == CE_None )
            poVDS->SetGeoTransform( adfGeoTransform );
    }
    else
    {
        poVDS->SetGCPs( GDALGetGCPCount(hDataset), 
                        GDALGetGCPs(hDataset),
                        GDALGetGCPProjection( hDataset ) );
    }
    
    poVDS->SetMetadata( ((GDALDataset*)hDataset)->GetMetadata() );

    for( iBand = 0; iBand < nBandCount; iBand++ )
    {
        VRTSourcedRasterBand   *poVRTBand;
        GDALRasterBand  *poSrcBand;
        GDALDataType    eBandType;

        poSrcBand = ((GDALDataset *) hDataset)->GetRasterBand(iBand+1);

/* -------------------------------------------------------------------- */
/*      Select output data type to match source.                        */
/* -------------------------------------------------------------------- */
        if( eOutputType == GDT_Unknown )
            eBandType = GDT_Byte;
        else
            eBandType = eOutputType;

/* -------------------------------------------------------------------- */
/*      Create this band.                                               */
/* -------------------------------------------------------------------- */
        poVDS->AddBand( eBandType, NULL );
        poVRTBand = (VRTSourcedRasterBand *) poVDS->GetRasterBand( iBand+1 );
            
/* -------------------------------------------------------------------- */
/*      Create a function based source with info on how to apply the    */
/*      enhancement.                                                    */
/* -------------------------------------------------------------------- */
开发者ID:brunosimoes，项目名称:WorldWind，代码行数:67，代码来源:gdalenhance.cpp

示例4: CreateSubRaster

bool CreateSubRaster( wxGISRasterDatasetSPtr pSrcRasterDataSet, OGREnvelope &Env, const OGRGeometry *pGeom, GDALDriver* pDriver, CPLString &szDstPath, GDALDataType eOutputType, int nBandCount, int *panBandList, double dfOutResX, double dfOutResY, bool bCopyNodata, bool bSkipSourceMetadata, char** papszOptions, ITrackCancel* pTrackCancel )
{
	GDALDataset* pDset = pSrcRasterDataSet->GetRaster();
	if(!pDset)
	{
		if(pTrackCancel)
			pTrackCancel->PutMessage(_("Get raster failed"), -1, enumGISMessageErr);
		return false;
	}

    double adfGeoTransform[6] = { 0, 0, 0, 0, 0, 0 };
	CPLErr err = pDset->GetGeoTransform(adfGeoTransform);
	if(err == CE_Fatal)
	{
		if(pTrackCancel)
			pTrackCancel->PutMessage(_("Get raster failed"), -1, enumGISMessageErr);
		return false;
	}
	if( adfGeoTransform[2] != 0.0 || adfGeoTransform[4] != 0.0 )
	{
		if(pTrackCancel)
			pTrackCancel->PutMessage(_("The geotransform is rotated. This configuration is not supported."), -1, enumGISMessageErr);
		return false;
    }
	int anSrcWin[4] = {0, 0, 0, 0};

    anSrcWin[0] = floor ((Env.MinX - adfGeoTransform[0]) / adfGeoTransform[1] + 0.001);
    anSrcWin[1] = floor ((Env.MaxY - adfGeoTransform[3]) / adfGeoTransform[5] + 0.001);
	anSrcWin[2] = ceil ((Env.MaxX - Env.MinX) / adfGeoTransform[1]);
	anSrcWin[3] = ceil ((Env.MinY - Env.MaxY) / adfGeoTransform[5]);
	if(pTrackCancel)
		pTrackCancel->PutMessage(wxString::Format(_("Computed source pixel window %d %d %d %d from geographic window."), anSrcWin[0], anSrcWin[1], anSrcWin[2], anSrcWin[3] ), -1, enumGISMessageInfo);

	if( anSrcWin[0] < 0 || anSrcWin[1] < 0 || anSrcWin[0] + anSrcWin[2] > pSrcRasterDataSet->GetWidth() || anSrcWin[1] + anSrcWin[3] > pSrcRasterDataSet->GetHeight() )
    {
		if(pTrackCancel)
			pTrackCancel->PutMessage(wxString::Format(_("Computed source pixel window falls outside raster size of %dx%d."), pSrcRasterDataSet->GetWidth(), pSrcRasterDataSet->GetHeight()), -1, enumGISMessageErr);
		return false;
    }

	int nOXSize = 0, nOYSize = 0;

    if(IsDoubleEquil(dfOutResX, -1) && IsDoubleEquil(dfOutResY, -1))
    {
        nOXSize = anSrcWin[2];
        nOYSize = anSrcWin[3];
    }
    else
    {
        nOXSize = ceil ((Env.MaxX - Env.MinX) / dfOutResX);
        nOYSize = ceil ((Env.MinY - Env.MaxY) / (adfGeoTransform[5] < 0 ? dfOutResY * -1 : dfOutResY));
    }

/* ==================================================================== */
/*      Create a virtual dataset.                                       */
/* ==================================================================== */
    VRTDataset *poVDS;
/* -------------------------------------------------------------------- */
/*      Make a virtual clone.                                           */
/* -------------------------------------------------------------------- */
    poVDS = (VRTDataset *) VRTCreate( nOXSize, nOYSize );

    if( pSrcRasterDataSet->GetSpatialReference() != NULL )
    {
		poVDS->SetProjection( pDset->GetProjectionRef() );
    }

	adfGeoTransform[0] += anSrcWin[0] * adfGeoTransform[1] + anSrcWin[1] * adfGeoTransform[2];
    adfGeoTransform[3] += anSrcWin[0] * adfGeoTransform[4] + anSrcWin[1] * adfGeoTransform[5];

    adfGeoTransform[1] *= anSrcWin[2] / (double) nOXSize;
    adfGeoTransform[2] *= anSrcWin[3] / (double) nOYSize;
    adfGeoTransform[4] *= anSrcWin[2] / (double) nOXSize;
    adfGeoTransform[5] *= anSrcWin[3] / (double) nOYSize;

    poVDS->SetGeoTransform( adfGeoTransform );

    int nGCPs = pDset->GetGCPCount();
    if( nGCPs > 0 )
    {
        GDAL_GCP *pasGCPs = GDALDuplicateGCPs( nGCPs, pDset->GetGCPs() );

        for(size_t i = 0; i < nGCPs; ++i )
        {
            pasGCPs[i].dfGCPPixel -= anSrcWin[0];
            pasGCPs[i].dfGCPLine  -= anSrcWin[1];
            pasGCPs[i].dfGCPPixel *= (nOXSize / (double) anSrcWin[2] );
            pasGCPs[i].dfGCPLine  *= (nOYSize / (double) anSrcWin[3] );
        }

        poVDS->SetGCPs( nGCPs, pasGCPs, pDset->GetGCPProjection() );
        GDALDeinitGCPs( nGCPs, pasGCPs );
        CPLFree( pasGCPs );
    }

/* -------------------------------------------------------------------- */
/*      Transfer generally applicable metadata.                         */
/* -------------------------------------------------------------------- */
    if(!bSkipSourceMetadata)
        poVDS->SetMetadata( pDset->GetMetadata() );
//.........这里部分代码省略.........
开发者ID:Mileslee，项目名称:wxgis，代码行数:101，代码来源:gpraster.cpp


注：本文中的VRTDataset::SetGCPs方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。