DsePolygon¶

struct DsePolygon¶

Public Functions

DsePolygon *dse_polygon_new()¶

Creates a new polygon iterator.

See also

dse_polygon_iterator_free()

Returns:

Returns an polygon that must be freed.

void dse_polygon_free(DsePolygon *polygon)¶

Frees a polygon instance.

Parameters:

polygon – [in]

void dse_polygon_reset(DsePolygon *polygon)¶

Resets a polygon so that it can be reused.

Parameters:

polygon – [in]

void dse_polygon_reserve(DsePolygon *polygon, cass_uint32_t num_rings, cass_uint32_t total_num_points)¶

Reserves enough memory to contain the provided number rings and points. This can be use to reduce memory allocations, but it is not required.

Parameters:

• polygon – [in]

• num_rings – [in]

• total_num_points – [in]

CassError dse_polygon_start_ring(DsePolygon *polygon)¶

Starts a new ring.

Note: This will finish the previous ring.

Parameters:

polygon – [in]

Returns:

CASS_OK if successful, otherwise an error occurred.

CassError dse_polygon_add_point(DsePolygon *polygon, cass_double_t x, cass_double_t y)¶

Adds a point to the current ring.

Parameters:

• polygon – [in]

• x – [in]

• y – [in]

Returns:

CASS_OK if successful, otherwise an error occurred.

CassError dse_polygon_finish(DsePolygon *polygon)¶

Finishes the contruction of a polygon.

Parameters:

polygon – [in]

Returns:

CASS_OK if successful, otherwise an error occurred.