/**
* CURVEPOLYTYPE
*/
static LWCURVEPOLY* lwcurvepoly_from_wkb_state(wkb_parse_state *s)
{
uint32_t ngeoms = integer_from_wkb_state(s);
LWCURVEPOLY *cp = lwcurvepoly_construct_empty(s->srid, s->has_z, s->has_m);
LWGEOM *geom = NULL;
int i;
/* Empty collection? */
if ( ngeoms == 0 )
return cp;
for ( i = 0; i < ngeoms; i++ )
{
geom = lwgeom_from_wkb_state(s);
if ( lwcurvepoly_add_ring(cp, geom) == LW_FAILURE )
lwerror("Unable to add geometry (%p) to curvepoly (%p)", geom, cp);
}
return cp;
}
LWGEOM* wkt_parser_curvepolygon_add_ring(LWGEOM *poly, LWGEOM *ring)
{
LWDEBUG(4,"entered");
/* Toss error on null input */
if( ! (ring && poly) )
{
SET_PARSER_ERROR(PARSER_ERROR_OTHER);
LWDEBUG(4,"inputs are null");
return NULL;
}
/* All the elements must agree on dimensionality */
if( FLAGS_NDIMS(poly->flags) != FLAGS_NDIMS(ring->flags) )
{
LWDEBUG(4,"dimensionality does not match");
lwgeom_free(ring);
lwgeom_free(poly);
SET_PARSER_ERROR(PARSER_ERROR_MIXDIMS);
return NULL;
}
/* Apply check for minimum number of points, if requested. */
if( (global_parser_result.parser_check_flags & LW_PARSER_CHECK_MINPOINTS) &&
(lwgeom_count_vertices(ring) < 4) )
{
LWDEBUG(4,"number of points is incorrect");
lwgeom_free(ring);
lwgeom_free(poly);
SET_PARSER_ERROR(PARSER_ERROR_MOREPOINTS);
return NULL;
}
/* Apply check for not closed rings, if requested. */
if( (global_parser_result.parser_check_flags & LW_PARSER_CHECK_CLOSURE) )
{
int is_closed = 1;
LWDEBUG(4,"checking ring closure");
switch ( ring->type )
{
case LINETYPE:
is_closed = lwline_is_closed(lwgeom_as_lwline(ring));
break;
case CIRCSTRINGTYPE:
is_closed = lwcircstring_is_closed(lwgeom_as_lwcircstring(ring));
break;
case COMPOUNDTYPE:
is_closed = lwcompound_is_closed(lwgeom_as_lwcompound(ring));
break;
}
if ( ! is_closed )
{
LWDEBUG(4,"ring is not closed");
lwgeom_free(ring);
lwgeom_free(poly);
SET_PARSER_ERROR(PARSER_ERROR_UNCLOSED);
return NULL;
}
}
if( LW_FAILURE == lwcurvepoly_add_ring(lwgeom_as_lwcurvepoly(poly), ring) )
{
LWDEBUG(4,"failed to add ring");
lwgeom_free(ring);
lwgeom_free(poly);
SET_PARSER_ERROR(PARSER_ERROR_OTHER);
return NULL;
}
return poly;
}
