lwgeom_to_svg()

lwvarlena_t * lwgeom_to_svg	(	const LWGEOM *	geom,
		int	precision,
		int	relative
	)

Takes a GEOMETRY and returns a SVG representation.

Definition at line 559 of file lwout_svg.c.

{
        stringbuffer_t sb;
        int type = geom->type;
 
        /* Empty varlena for empties */
        if(lwgeom_is_empty(geom))
        {
                lwvarlena_t *v = lwalloc(LWVARHDRSZ);
                LWSIZE_SET(v->size, LWVARHDRSZ);
                return v;
        }
 
        stringbuffer_init_varlena(&sb);
 
        switch (type)
        {
        case POINTTYPE:
                assvg_point(&sb, (LWPOINT*)geom, relative, precision);
                break;
        case LINETYPE:
                assvg_line(&sb, (LWLINE*)geom, relative, precision);
                break;
        case POLYGONTYPE:
                assvg_polygon(&sb, (LWPOLY*)geom, relative, precision);
                break;
        case CIRCSTRINGTYPE:
                assvg_circstring(&sb, (LWCIRCSTRING*)geom, relative, precision);
                break;
        case COMPOUNDTYPE:
                assvg_compound(&sb, (LWCOMPOUND*)geom, relative, precision);
                break;
        case CURVEPOLYTYPE:
                assvg_curvepoly(&sb, (LWCURVEPOLY*)geom, relative, precision);
                break;
        case MULTIPOINTTYPE:
                assvg_multipoint(&sb, (LWMPOINT*)geom, relative, precision);
                break;
        case MULTILINETYPE:
                assvg_multiline(&sb, (LWMLINE*)geom, relative, precision);
                break;
        case MULTICURVETYPE:
                assvg_multicurve(&sb, (LWMCURVE*)geom, relative, precision);
                break;
        case MULTIPOLYGONTYPE:
                assvg_multipolygon(&sb, (LWMPOLY*)geom, relative, precision);
                break;
        case MULTISURFACETYPE:
                assvg_multisurface(&sb, (LWMSURFACE*)geom, relative, precision);
                break;
        case COLLECTIONTYPE:
                assvg_collection(&sb, (LWCOLLECTION*)geom, relative, precision);
                break;
 
        default:
                lwerror("lwgeom_to_svg: '%s' geometry type not supported", lwtype_name(type));
        }
 
        return stringbuffer_getvarlena(&sb);
}

References assvg_circstring(), assvg_collection(), assvg_compound(), assvg_curvepoly(), assvg_line(), assvg_multicurve(), assvg_multiline(), assvg_multipoint(), assvg_multipolygon(), assvg_multisurface(), assvg_point(), assvg_polygon(), CIRCSTRINGTYPE, COLLECTIONTYPE, COMPOUNDTYPE, CURVEPOLYTYPE, LINETYPE, lwalloc(), lwerror(), lwgeom_is_empty(), LWSIZE_SET, lwtype_name(), LWVARHDRSZ, MULTICURVETYPE, MULTILINETYPE, MULTIPOINTTYPE, MULTIPOLYGONTYPE, MULTISURFACETYPE, POINTTYPE, POLYGONTYPE, precision, lwvarlena_t::size, stringbuffer_getvarlena(), stringbuffer_init_varlena(), and LWGEOM::type.

Referenced by do_svg_test(), do_svg_unsupported(), geography_as_svg(), and LWGEOM_asSVG().

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