62 lines
1.7 KiB
Markdown
62 lines
1.7 KiB
Markdown
---
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title: geo.stLength() function
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description: >
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`geo.stLength()` returns the [spherical length or distance](https://mathworld.wolfram.com/SphericalDistance.html)
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of the specified GIS geometry.
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menu:
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flux_v0_ref:
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name: geo.stLength
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parent: experimental/geo
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identifier: experimental/geo/stLength
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weight: 201
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flux/v0/tags: [geotemporal]
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introduced: 0.78.0
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---
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<!------------------------------------------------------------------------------
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IMPORTANT: This page was generated from comments in the Flux source code. Any
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edits made directly to this page will be overwritten the next time the
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documentation is generated.
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To make updates to this documentation, update the function comments above the
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function definition in the Flux source code:
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https://github.com/influxdata/flux/blob/master/stdlib/experimental/geo/geo.flux#L239-L239
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Contributing to Flux: https://github.com/influxdata/flux#contributing
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Fluxdoc syntax: https://github.com/influxdata/flux/blob/master/docs/fluxdoc.md
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------------------------------------------------------------------------------->
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`geo.stLength()` returns the [spherical length or distance](https://mathworld.wolfram.com/SphericalDistance.html)
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of the specified GIS geometry.
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`geo.stLength` is used as a helper function for `geo.ST_Length()`.
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##### Function type signature
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```js
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(geometry: A, units: {distance: string}) => float where A: Record
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```
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{{% caption %}}
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For more information, see [Function type signatures](/flux/v0/function-type-signatures/).
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{{% /caption %}}
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## Parameters
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### geometry
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({{< req >}})
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GIS geometry to test. Can be either point or linestring geometry.
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Point geometry will always return `0.0`.
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### units
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({{< req >}})
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Record that defines the unit of measurement for distance.
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