Beispiel #1
0
int main( int argc, char ** argv )

{
    AIGInfo_t	*psInfo;
    GUInt32 	*panRaster;
    int		i, j;
    int		bMagic = FALSE, bSupressMagic = FALSE;

/* -------------------------------------------------------------------- */
/*      Process arguments.                                              */
/* -------------------------------------------------------------------- */
    while( argc > 1 && argv[1][0] == '-' )
    {
        if( EQUAL(argv[1],"-magic") )
            bMagic = TRUE;

        else if( EQUAL(argv[1],"-nomagic") )
            bSupressMagic = TRUE;

        argc--;
        argv++;
    }
    
    if( argc < 2 ) {
        printf( "Usage: aitest [-magic] coverage [block numbers...]\n" );
        exit( 1 );
    }

/* -------------------------------------------------------------------- */
/*      Open dataset.                                                   */
/* -------------------------------------------------------------------- */
    psInfo = AIGOpen( argv[1], "r" );
    if( psInfo == NULL )
        exit( 1 );

    AIGAccessTile( psInfo, 0, 0 );

/* -------------------------------------------------------------------- */
/*      Dump general information                                        */
/* -------------------------------------------------------------------- */
    printf( "%d pixels x %d lines.\n", psInfo->nPixels, psInfo->nLines );
    printf( "Lower Left = (%f,%f)   Upper Right = (%f,%f)\n",
            psInfo->dfLLX,
            psInfo->dfLLY,
            psInfo->dfURX,
            psInfo->dfURY );

    if( psInfo->nCellType == AIG_CELLTYPE_INT )
        printf( "Integer coverage, %dx%d blocks.\n",
                psInfo->nBlockXSize, psInfo->nBlockYSize );
    else
        printf( "Floating point coverage, %dx%d blocks.\n",
                psInfo->nBlockXSize, psInfo->nBlockYSize );

    printf( "Stats - Min=%f, Max=%f, Mean=%f, StdDev=%f\n",
            psInfo->dfMin,
            psInfo->dfMax,
            psInfo->dfMean,
            psInfo->dfStdDev );
    
/* -------------------------------------------------------------------- */
/*      Do we want a dump of all the ``magic'' numbers for              */
/*      instantated blocks?                                             */
/* -------------------------------------------------------------------- */
    if( !bSupressMagic )
        DumpMagic( psInfo, bMagic );
    
/* -------------------------------------------------------------------- */
/*      Read a block, and report it's contents.                         */
/* -------------------------------------------------------------------- */
    panRaster = (GUInt32 *)
        CPLMalloc(psInfo->nBlockXSize * psInfo->nBlockYSize * 4);
    
    while( argc > 2 && (atoi(argv[2]) > 0 || argv[2][0] == '0') )
    {
        int	nBlock = atoi(argv[2]);
        CPLErr  eErr;
        AIGTileInfo *psTInfo = psInfo->pasTileInfo + 0;

        argv++;
        argc--;
        
        eErr = AIGReadBlock( psTInfo->fpGrid,
                             psTInfo->panBlockOffset[nBlock],
                             psTInfo->panBlockSize[nBlock],
                             psInfo->nBlockXSize, psInfo->nBlockYSize,
                             panRaster, psInfo->nCellType );

        printf( "\nBlock %d:\n", nBlock );

        if( eErr != CE_None )
        {
            printf( "  Error! Skipping block.\n" );
            continue;
        }
        
        for( j = 0; j < psInfo->nBlockYSize; j++ )
        {
            for( i = 0; i < psInfo->nBlockXSize; i++ )
            {
                if( i > 18 )
                {
                    printf( "..." );
                    break;
                }

                if( panRaster[i+j*psInfo->nBlockXSize] == ESRI_GRID_NO_DATA )
                    printf( "-*- " );
                else if( psInfo->nCellType == AIG_CELLTYPE_FLOAT )
                    printf( "%f ",
                            ((float *) panRaster)[i+j*psInfo->nBlockXSize] );
                else 
                    printf( "%3d ", panRaster[i+j*psInfo->nBlockXSize] );
            }
            printf( "\n" );
        }
    }

    CPLFree( panRaster );

    AIGClose( psInfo );

    exit( 0 );
}
Beispiel #2
0
AIGInfo_t *AIGOpen( const char * pszInputName, const char * pszAccess )

{
    AIGInfo_t	*psInfo;
    char        *pszCoverName;

    (void) pszAccess;

/* -------------------------------------------------------------------- */
/*      If the pass name ends in .adf assume a file within the          */
/*      coverage has been selected, and strip that off the coverage     */
/*      name.                                                           */
/* -------------------------------------------------------------------- */
    pszCoverName = CPLStrdup( pszInputName );
    if( EQUAL(pszCoverName+strlen(pszCoverName)-4, ".adf") )
    {
        int      i;

        for( i = strlen(pszCoverName)-1; i > 0; i-- )
        {
            if( pszCoverName[i] == '\\' || pszCoverName[i] == '/' )
            {
                pszCoverName[i] = '\0';
                break;
            }
        }

        if( i == 0 )
            strcpy(pszCoverName,".");
    }

/* -------------------------------------------------------------------- */
/*      Allocate info structure.                                        */
/* -------------------------------------------------------------------- */
    psInfo = (AIGInfo_t *) CPLCalloc(sizeof(AIGInfo_t),1);
    psInfo->bHasWarned = FALSE;
    psInfo->pszCoverName = pszCoverName;

/* -------------------------------------------------------------------- */
/*      Read the header file.                                           */
/* -------------------------------------------------------------------- */
    if( AIGReadHeader( pszCoverName, psInfo ) != CE_None )
    {
        CPLFree( pszCoverName );
        CPLFree( psInfo );
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Read the extents.                                               */
/* -------------------------------------------------------------------- */
    if( AIGReadBounds( pszCoverName, psInfo ) != CE_None )
    {
        AIGClose( psInfo );
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Compute the number of pixels and lines, and the number of       */
/*      tile files.                                                     */
/* -------------------------------------------------------------------- */
    if (psInfo->dfCellSizeX <= 0 || psInfo->dfCellSizeY <= 0)
    {
        CPLError( CE_Failure, CPLE_AppDefined, 
                  "Illegal cell size : %f x %f",
                  psInfo->dfCellSizeX, psInfo->dfCellSizeY );
        AIGClose( psInfo );
        return NULL;
    }

    psInfo->nPixels = (int)
        ((psInfo->dfURX - psInfo->dfLLX + 0.5 * psInfo->dfCellSizeX) 
		/ psInfo->dfCellSizeX);
    psInfo->nLines = (int)
        ((psInfo->dfURY - psInfo->dfLLY + 0.5 * psInfo->dfCellSizeY) 
		/ psInfo->dfCellSizeY);
    
    if (psInfo->nPixels <= 0 || psInfo->nLines <= 0)
    {
        CPLError( CE_Failure, CPLE_AppDefined, 
                  "Invalid raster dimensions : %d x %d",
                  psInfo->nPixels, psInfo->nLines );
        AIGClose( psInfo );
        return NULL;
    }

    if (psInfo->nBlockXSize <= 0 || psInfo->nBlockYSize <= 0 ||
        psInfo->nBlocksPerRow <= 0 || psInfo->nBlocksPerColumn <= 0 ||
        psInfo->nBlockXSize > INT_MAX / psInfo->nBlocksPerRow ||
        psInfo->nBlockYSize > INT_MAX / psInfo->nBlocksPerColumn)
    {
        CPLError( CE_Failure, CPLE_AppDefined, 
                  "Invalid block characteristics: nBlockXSize=%d, "
                  "nBlockYSize=%d, nBlocksPerRow=%d, nBlocksPerColumn=%d",
                  psInfo->nBlockXSize, psInfo->nBlockYSize,
                  psInfo->nBlocksPerRow, psInfo->nBlocksPerColumn);
        AIGClose( psInfo );
        return NULL;
    }

    psInfo->nTileXSize = psInfo->nBlockXSize * psInfo->nBlocksPerRow;
    psInfo->nTileYSize = psInfo->nBlockYSize * psInfo->nBlocksPerColumn;

    psInfo->nTilesPerRow = (psInfo->nPixels-1) / psInfo->nTileXSize + 1;
    psInfo->nTilesPerColumn = (psInfo->nLines-1) / psInfo->nTileYSize + 1;

    if (psInfo->nTilesPerRow > INT_MAX / psInfo->nTilesPerColumn)
    {
        CPLError(CE_Failure, CPLE_OutOfMemory, "Too many tiles");
        AIGClose( psInfo );
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Setup tile infos, but defer reading of tile data.               */
/* -------------------------------------------------------------------- */
    psInfo->pasTileInfo = (AIGTileInfo *) 
        VSICalloc(sizeof(AIGTileInfo),
                  psInfo->nTilesPerRow * psInfo->nTilesPerColumn);
    if (psInfo->pasTileInfo == NULL)
    {
        CPLError(CE_Failure, CPLE_OutOfMemory, "Cannot allocate tile info array");
        AIGClose( psInfo );
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Read the statistics.                                            */
/* -------------------------------------------------------------------- */
    if( AIGReadStatistics( pszCoverName, psInfo ) != CE_None )
    {
        AIGClose( psInfo );
        return NULL;
    }

    return( psInfo );
}