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# GeoArrowLoader | ||
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![arrow-logo](../images/apache-arrow-small.png) | ||
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<p class="badges"> | ||
<img src="https://img.shields.io/badge/From-v4.1-blue.svg?style=flat-square" alt="From-v4.1" /> | ||
</p> | ||
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The `GeoArrowLoader` parses Apache Arrow columnar table format files, and looks for `GeoArrow` type extensions to parse geometries from the table. | ||
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| Loader | Characteristic | | ||
| --------------------- | ------------------------------------------------------------------------- | | ||
| File Format | [IPC: Encapsulated Message Format](https://arrow.apache.org/docs/format/Columnar.html#serialization-and-interprocess-communication-ipc) | | ||
| Data Format | [Geometry Table](/docs/specifications/category-table) | | ||
| File Extension | `.arrow` | | ||
| File Type | Binary | | ||
| Decoder Type | `load`, `parse`, `parseSync`, `parseInBatches` | | ||
| Worker Thread Support | Yes | | ||
| Streaming Support | Yes | | ||
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## Usage | ||
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```typescript | ||
import {GeoArrowLoader} from '@loaders.gl/arrow'; | ||
import {load} from '@loaders.gl/core'; | ||
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const data = await load(url, GeoArrowLoader, options); | ||
``` | ||
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## Options | ||
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| Option | Type | Default | Description | | ||
| ------ | ---- | ------- | ----------- | |
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# FlatGeobuf | ||
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- *[`@loaders.gl/flatgeobuf`](/docs/moodules/flatgeobuf)* | ||
- *[FlatGeobuf](http://flatgeobuf.org/)* | ||
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FlatGeobuf is a binary (FlatBuffers-encoded) format that defines geospatial geometries. It is row-oriented rather than columnar (like GeoParquet and GeoArrow) and offers a different set of trade-offs. | ||
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FlatGeobuf was inspired by [geobuf](https://github.com/mapbox/geobuf) and [flatbush](https://github.com/mourner/flatbush). | ||
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## Characteristics | ||
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- binary | ||
- row oriented | ||
- supports appends, but no random writes | ||
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Goals are to be suitable for large volumes of static data, significantly faster than legacy formats without size limitations for contents or metainformation and to be suitable for streaming/random access. | ||
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# Overview 🚧 | ||
# Overview | ||
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![ogc-logo](../../images/logos/ogc-logo-60.png) | ||
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