lwgeom_to_x3d3()

char* lwgeom_to_x3d3	(	const LWGEOM *	geom,
		char *	srs,
		int	precision,
		int	opts,
		const char *	defid
	)

We might change this later, but putting a polygon in an indexed face set seems like the simplest way to go so treat just like a mulitpolygon

Definition at line 60 of file lwout_x3d.c.

References asx3d3_collection(), asx3d3_line(), asx3d3_multi(), asx3d3_point(), asx3d3_psurface(), asx3d3_tin(), asx3d3_triangle(), COLLECTIONTYPE, LINETYPE, lwalloc(), lwcollection_free(), lwerror(), lwgeom_as_multi(), lwgeom_is_empty(), lwtype_name(), MULTILINETYPE, MULTIPOINTTYPE, MULTIPOLYGONTYPE, POINTTYPE, POLYGONTYPE, POLYHEDRALSURFACETYPE, TINTYPE, TRIANGLETYPE, ovdump::type, and LWGEOM::type.

Referenced by do_x3d3_test(), do_x3d3_unsupported(), and LWGEOM_asX3D().

{
        int type = geom->type;

        /* Empty string for empties */
        if( lwgeom_is_empty(geom) )
        {
                char *ret = NULL;
                ret = lwalloc(1);
                ret[0] = '\0';
                return ret;
        }

        switch (type)
        {
        case POINTTYPE:
                return asx3d3_point((LWPOINT*)geom, srs, precision, opts, defid);

        case LINETYPE:
                return asx3d3_line((LWLINE*)geom, srs, precision, opts, defid);

        case POLYGONTYPE:
        {
                LWCOLLECTION *tmp = (LWCOLLECTION*)lwgeom_as_multi(geom);
                char *ret = asx3d3_multi(tmp, srs, precision, opts, defid);
                lwcollection_free(tmp);
                return ret;
        }

        case TRIANGLETYPE:
                return asx3d3_triangle((LWTRIANGLE*)geom, srs, precision, opts, defid);

        case MULTIPOINTTYPE:
        case MULTILINETYPE:
        case MULTIPOLYGONTYPE:
                return asx3d3_multi((LWCOLLECTION*)geom, srs, precision, opts, defid);

        case POLYHEDRALSURFACETYPE:
                return asx3d3_psurface((LWPSURFACE*)geom, srs, precision, opts, defid);

        case TINTYPE:
                return asx3d3_tin((LWTIN*)geom, srs, precision, opts, defid);

        case COLLECTIONTYPE:
                return asx3d3_collection((LWCOLLECTION*)geom, srs, precision, opts, defid);

        default:
                lwerror("lwgeom_to_x3d3: '%s' geometry type not supported", lwtype_name(type));
                return NULL;
        }
}

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