rt_raster_to_hexwkb()

char * rt_raster_to_hexwkb	(	rt_raster	raster,
		int	outasin,
		uint32_t *	hexwkbsize
	)

Return this raster in HEXWKB form (null-terminated hex)

Parameters

raster	: the raster
outasin	: if TRUE, out-db bands are treated as in-db
hexwkbsize	: will be set to the size of returned wkb form, not including the null termination

Returns

HEXWKB of raster or NULL on error

Definition at line 693 of file rt_wkb.c.

                                                                         {
        uint8_t *wkb = NULL;
        char* hexwkb = NULL;
        uint32_t wkbsize = 0;
 
        assert(NULL != raster);
        assert(NULL != hexwkbsize);
 
        RASTER_DEBUG(2, "rt_raster_to_hexwkb: calling rt_raster_to_wkb");
 
        wkb = rt_raster_to_wkb(raster, outasin, &wkbsize);
 
        RASTER_DEBUG(3, "rt_raster_to_hexwkb: rt_raster_to_wkb returned");
 
        *hexwkbsize = wkbsize * 2; /* hex is 2 times bytes */
        hexwkb = (char*) rtalloc((*hexwkbsize) + 1);
        if (!hexwkb) {
                rterror("rt_raster_to_hexwkb: Out of memory hexifying raster WKB");
                rtdealloc(wkb);
                return NULL;
        }
 
        char *optr = hexwkb;
        uint8_t *iptr = wkb;
        const char hexchar[]="0123456789ABCDEF";
        while (wkbsize--) {
                uint8_t v = *iptr++;
                *optr++ = hexchar[v>>4];
                *optr++ = hexchar[v & 0x0F];
        }
        *optr = '\0'; /* Null-terminate */
 
        rtdealloc(wkb); /* we don't need this anymore */
 
        RASTER_DEBUGF(3, "rt_raster_to_hexwkb: output wkb: %s", hexwkb);
        return hexwkb;
}

References RASTER_DEBUG, RASTER_DEBUGF, rt_raster_to_wkb(), rtalloc(), rtdealloc(), and rterror().

Referenced by build_overview(), convert_raster(), RASTER_asHexWKB(), RASTER_out(), and test_raster_wkb().

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