MakeLine

The MakeLine function constructs a LineString from a series of Point or LineString data.

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This function isn't compatible with all data platform connections. To check if your connection supports it, see Supported data platforms and feature compatibility.

Syntax

MakeLine(geo1, geo2, ...)

Function arguments:

geo1

Required

A valid point or line value that can be located on the Earth's sphere; must comply with the Geographic Coordinate System

geo2

Required

A valid point or line value that can be located on the Earth's sphere; must comply with the Geographic Coordinate System

geo3 through geoN

Optional

A valid point or line value that can be located on the Earth's sphere; must comply with the Geographic Coordinate System

When using line segments in arguments, Sigma treats the terminal points of the line as separate points, in order. For example, the expression:

MakeLine(point1, MakeLine(point2, point3), Makeline(point4, point5, point6))

is the same as the expression:

MakeLine(point1, point2, point3, point4, point5, point6)

Examples

Example 1

MakeLine([Point], MakePoint(-74.044502, 40.689247))

Creates lines between the points in the Point column, and the location of the Statue of Liberty at coordinates (-74.044502, 40.689247)

Example 2

MakeLine(MakePoint(2.294481, 48.85837), [Point], MakePoint(-74.044502, 40.689247))

Creates lines between the location of the Eiffel Tower (2.294481, 48.85837), the Point column, and the location of the Statue of Liberty (-74.044502, 40.689247)

Example 3

MakeLine(MakeLine(MakePoint(48.85837, 2.294481), MakePoint(-0.075278, 51.505554)), [Point], MakeLine(MakePoint(40.689247, -74.044502), MakePoint(-77.050636, 38.889248))

Creates lines between the line between the Eiffel Tower (2.294481, 48.85837) and the Tower Bridge ( -0.075278, 51.505554), the Point column, and the line between the Empire State building (-73.985428, 40.748817) and the Lincoln Memorial (-77.050636, 38.889248).