DseLineStringIterator¶Public Functions
dse_line_string_iterator_new()¶Creates a new line string iterator.
Returns an iterator that must be freed.
dse_line_string_iterator_free(DseLineStringIterator *iterator)¶Frees a line string iterator instance.
iterator:
dse_line_string_iterator_reset(DseLineStringIterator *iterator, const CassValue *value)¶Resets a line string iterator so that it can be reused to process a binary representation.
CASS_OK if successful, otherwise an error occurred.
iterator: the iterator to reset
value: binary representation of the line string
dse_line_string_iterator_reset_with_wkt(DseLineStringIterator *iterator, const char *wkt)¶Resets a line string iterator so that it can be reused to parse WKT.
The wkt string must remain allocated throughout the lifetime of the iterator since the iterator traverses the string without copying it.
CASS_OK if successful, otherwise an error occurred.
iterator: the iterator to reset
wkt: WKT representation of the line string
dse_line_string_iterator_reset_with_wkt_n(DseLineStringIterator *iterator, const char *wkt, size_t wkt_length)¶Same as dse_line_string_iterator_reset_with_wkt(), but with lengths for string parameters.
The wkt string must remain allocated throughout the lifetime of the iterator since the iterator traverses the string without copying it.
CASS_OK if successful, otherwise an error occurred.
iterator: the iterator to reset
wkt: WKT representation (string) of the line string
wkt_length: length of wkt string
dse_line_string_iterator_num_points(const DseLineStringIterator *iterator)¶Gets the number of points in the line string.
The number of points in the line string.
iterator:
dse_line_string_iterator_next_point(DseLineStringIterator *iterator, cass_double_t *x, cass_double_t *y)¶Gets the next point in the line string.
CASS_OK if successful, otherwise an error occurred.
iterator:
x:
y: