Center_bound

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title: Center bound permalink: /Center_bound/

Geometric functions center_bound

syntax

• center_bound(polygon_data_item)

definition

center_bound(polygon_data_item) results in a point data item with the center of the bounding box of the polygon_data_item.

applies to

Point data item polygon_data_item with fpoint or dpoint value type and composition type polygon

since version

5.15

example

attribute<point_rd> cb (district) := center_bound(district/geometry);

district/geometry		cb
{21 {403025, 113810}{4	{402990, 113061}
{17 {400990, 113269}{4	{401207, 112734}
{19 {401238, 115099}{4	{401265, 114026}

domain district, nr of rows = 3

see also

• lower_bound
• upper_bound