lwgeom_to_wkb_size()

static size_t lwgeom_to_wkb_size ( const LWGEOM *  geom, uint8_t  variant  )

static

Definition at line 676 of file lwout_wkb.c.

{
        size_t size = 0;
 
        if (geom == NULL)
        {
                LWDEBUG(4, "Cannot convert NULL into WKB.");
                lwerror("Cannot convert NULL into WKB.");
                return 0;
        }
 
        /* Short circuit out empty geometries */
        if ( (!(variant & WKB_EXTENDED)) && lwgeom_is_empty(geom) )
        {
                return empty_to_wkb_size(geom, variant);
        }
 
        switch ( geom->type )
        {
                case POINTTYPE:
                        size += lwpoint_to_wkb_size((LWPOINT*)geom, variant);
                        break;
 
                /* LineString and CircularString both have points elements */
                case CIRCSTRINGTYPE:
                case LINETYPE:
                        size += lwline_to_wkb_size((LWLINE*)geom, variant);
                        break;
 
                /* Polygon has nrings and rings elements */
                case POLYGONTYPE:
                        size += lwpoly_to_wkb_size((LWPOLY*)geom, variant);
                        break;
 
                /* Triangle has one ring of three points */
                case TRIANGLETYPE:
                        size += lwtriangle_to_wkb_size((LWTRIANGLE*)geom, variant);
                        break;
 
                /* All these Collection types have ngeoms and geoms elements */
                case MULTIPOINTTYPE:
                case MULTILINETYPE:
                case MULTIPOLYGONTYPE:
                case COMPOUNDTYPE:
                case CURVEPOLYTYPE:
                case MULTICURVETYPE:
                case MULTISURFACETYPE:
                case COLLECTIONTYPE:
                case POLYHEDRALSURFACETYPE:
                case TINTYPE:
                        size += lwcollection_to_wkb_size((LWCOLLECTION*)geom, variant);
                        break;
 
                /* Unknown type! */
                default:
                        lwerror("%s: Unsupported geometry type: %s", __func__, lwtype_name(geom->type));
        }
 
        return size;
}

References CIRCSTRINGTYPE, COLLECTIONTYPE, COMPOUNDTYPE, CURVEPOLYTYPE, empty_to_wkb_size(), LINETYPE, lwcollection_to_wkb_size(), LWDEBUG, lwerror(), lwgeom_is_empty(), lwline_to_wkb_size(), lwpoint_to_wkb_size(), lwpoly_to_wkb_size(), lwtriangle_to_wkb_size(), lwtype_name(), MULTICURVETYPE, MULTILINETYPE, MULTIPOINTTYPE, MULTIPOLYGONTYPE, MULTISURFACETYPE, POINTTYPE, POLYGONTYPE, POLYHEDRALSURFACETYPE, TINTYPE, TRIANGLETYPE, LWGEOM::type, LWPOINT::type, variant, and WKB_EXTENDED.

Referenced by lwcollection_to_wkb_size(), lwgeom_to_wkb_buffer(), and lwgeom_to_wkb_varlena().

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