ST_CompoundCurve(ST_Curve,...) constructor

NEW ST_CompoundCurve(curve1[,curve2,...,curveN])

Name	Type	Description
curve1	ST_Curve	The first curve to include in the compound curve.
curve2,...,curveN	ST_Curve	Additional curves to include in the compound curve.

Constructs a compound curve from a list of constituent curves. The start point of each curve after the first must be coincident with the end point of the previous curve. All of the supplied curves must have the same SRID. The compound curve is constructed with this common SRID. All of the supplied curves must be non-empty and have the same answer for Is3D and IsMeasured. The compound curve is 3D if all of the points are 3D, and the compound curve is measured if all of the points are measured.

Note

By default, ST_CompoundCurve uses the original format for a geometry, if it is available. Otherwise, the internal format is used. For more information about internal and original formats, see STORAGE FORMAT clause, CREATE SPATIAL REFERENCE SYSTEM statement.

SQL/MM (ISO/IEC 13249-3: 2006) Vendor extension

The following returns CompoundCurve ((0 0, 5 10), CircularString (5 10, 10 12, 15 10)).

SELECT NEW ST_CompoundCurve(NEW ST_LineString( 'LineString(0 0, 5 10)'),NEW ST_CircularString('CircularString (5 10, 10 12, 15 10)'))

ST_CompoundCurve(ST_Curve,...) constructor

Syntax

Parameters

Remarks

Note

Standards and compatibility

Example