postgis/PostGIS Manual — Belarusian @ OSGeo Weblate: Returns <varname>TRUE</varname> if this <varname>LINESTRING</varname> is both <xref linkend="ST_IsClosed"/> (<code>ST

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	Tests if a geometry is empty.
	Returns true if this Geometry is an empty geometry. If true, then this Geometry represents an empty geometry collection, polygon, point etc.
	SQL-MM defines the result of ST_IsEmpty(NULL) to be 0, while PostGIS returns NULL.	SQL-MM вызначае вынік <code>ST_IsEmpty(NULL)</code> як 0, у PostGIS вяртаецца <varname>NULL</varname>.
	&sqlmm_compliant; SQL-MM 3: 5.1.7	&sqlmm_compliant; SQL-MM 3: 5.1.7
	Changed: 2.0.0 In prior versions of PostGIS ST_GeomFromText('GEOMETRYCOLLECTION(EMPTY)') was allowed. This is now illegal in PostGIS 2.0.0 to better conform with SQL/MM standards	Змены: 2.0.0 - раней дапускаўся ST_GeomFromText('GEOMETRYCOLLECTION(EMPTY)'). Цяпер гэта забаронена для лепшай адпаведнасці SQL/MM.
	Tests if Polygons have exterior rings oriented counter-clockwise and interior rings oriented clockwise.
	Returns true if all polygonal components of the input geometry use a counter-clockwise orientation for their exterior ring, and a clockwise direction for all interior rings.
	Returns true if the geometry has no polygonal components.
	Closed linestrings are not considered polygonal components, so you would still get a true return by passing a single closed linestring no matter its orientation.
	If a polygonal geometry does not use reversed orientation for interior rings (i.e., if one or more interior rings are oriented in the same direction as an exterior ring) then both ST_IsPolygonCW and ST_IsPolygonCCW will return false.	Калі ўнутраныя кальцы не процілеглай арыентацыі (супадаюць з знешнім), то і ST_IsPolygonCW, і ST_IsPolygonCCW вернуць false.
	Availability: 2.4.0	Даступнасць: 2.4.0
	, <xref linkend="ST_ForcePolygonCCW"/>, <xref linkend="ST_IsPolygonCW"/>	, <xref linkend="ST_ForcePolygonCCW"/>, <xref linkend="ST_IsPolygonCW"/>
	Tests if Polygons have exterior rings oriented clockwise and interior rings oriented counter-clockwise.	Правярае, ці знешнія кальцы па гадзіннікавай, а ўнутраныя - супраць.
	Returns true if all polygonal components of the input geometry use a clockwise orientation for their exterior ring, and a counter-clockwise direction for all interior rings.
	Tests if a LineString is closed and simple.	Правярае, ці LINESTRING замкнёны і просты.
	Returns <varname>TRUE</varname> if this <varname>LINESTRING</varname> is both <xref linkend="ST_IsClosed"/> (<code>ST_StartPoint(g) ~= ST_Endpoint(g)</code>) and <xref linkend="ST_IsSimple"/> (does not self intersect).	Вяртае TRUE, калі <varname>LINESTRING</varname> адначасова <xref linkend="ST_IsClosed"/> (<code>ST_StartPoint(g) ~= ST_EndPoint(g)</code>) і <xref linkend="ST_IsSimple"/> (не мае самаперасячэнняў).
	&sqlmm_compliant; SQL-MM 3: 7.1.6	&sqlmm_compliant; SQL-MM 3: 7.1.6
	SQL-MM defines the result of <code>ST_IsRing(NULL)</code> to be 0, while PostGIS returns <varname>NULL</varname>.	SQL-MM вызначае вынік <code>ST_IsRing(NULL)</code> як 0, у PostGIS вяртаецца <varname>NULL</varname>.
	, <xref linkend="ST_IsSimple"/>, <xref linkend="ST_StartPoint"/>, <xref linkend="ST_EndPoint"/>
	Tests if a geometry has no points of self-intersection or self-tangency.
	Returns true if this Geometry has no anomalous geometric points, such as self-intersection or self-tangency. For more information on the OGC's definition of geometry simplicity and validity, refer to <link linkend="OGC_Validity">"Ensuring OpenGIS compliance of geometries"</link>
	SQL-MM defines the result of ST_IsSimple(NULL) to be 0, while PostGIS returns NULL.
	&sqlmm_compliant; SQL-MM 3: 5.1.8
	Returns the M coordinate of a Point.
	Return the M coordinate of a Point, or NULL if not available. Input must be a Point.
	This is not (yet) part of the OGC spec, but is listed here to complete the point coordinate extractor function list.
	&sqlmm_compliant;
	, <xref linkend="ST_X"/>, <xref linkend="ST_Y"/>, <xref linkend="ST_Z"/>
	Returns the amount of memory space a geometry takes.
	Returns the amount of memory space (in bytes) the geometry takes.
	This complements the PostgreSQL built-in <link xlink:href="https://www.postgresql.org/docs/current/functions-admin.html#FUNCTIONS-ADMIN-DBOBJECT">database object functions</link> pg_column_size, pg_size_pretty, pg_relation_size, pg_total_relation_size.

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Glossary

English	Belarusian
LINESTRING		Glossary
ST_EndPoint		Glossary
ST_IsClosed		Glossary
ST_IsSimple		Glossary
ST_StartPoint		Glossary

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Tag: para

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doc/po/be/postgis-manual.po, string 1543