GBDX

Vector Services Course

Introduction to the various parts of Vector Services

Ingest Source Coverage and Refresh Schedule

Below are the standard vector sources provided and information on update frequency.

Note: Ingest Sources are subject to rapid change, and both the list of available sources as well as the vector count within each listed source may be different than the given examples. Basic principles still apply.

Index Query Vector Services Overview

When users know the indexes containing the items they want to query for or retrieve, VectorServices provides the ability to limit operations to specific vector indexes. These calls avoid sending queries to the entire set of vectors, so they tend to take less time to process and return results.

See: Vector Services Index Query Reference Overview.

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Write Vector Services Overview

In order for users to add a vector item or multiple vector items directly to an index, VectorServices provides user vector generation. Vector generation is useful for direct additions of or updates to vectors, without needing a third party service or a vector submission request form. If the user has a few vectors to ingest into VectorServices, using the write API is the preferred method of ingest.

See: Vector Services Write Vectors Reference Overview.

If, however, the user has a large number of vectors to ingest into VectorServices, the bulk ingest process is the preferred method of ingest.

See: Lesson: Bulk Ingesting Vectors into Vector Services

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Aggregations Query Vector Services Overview

VectorServices provides aggregation capabilities to allow users to quickly and easily summarize data based on multiple parameters. Data can be grouped by geohash, date/time, terms, and a number of other aggregation types.

Aggregations are useful for discovering relationships and differences among groups of data. For example, a user could discover the most prolific Twitter users over a set of geohash boxes for the last week by aggregating tweet data by geohash region, time range, and the Twitter user name field. Mixing different aggregation types will give users different views on their data, allowing them to discover relationships they might not have otherwise seen.

See: Vector Services Aggregations Reference Overview.

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ESRI Query Vector Services Overview

In order for users to easily utilize VectorServices in ESRI software, ESRI endpoints are available. These endpoints work best with ArcMap, and provide all of the functionality of the General Vector Services, quickly polling and returning arrays of points, polylines, and polygons that may then be used in further analytical studies of the area.

See: Vector Services ESRI Reference Overview.

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Facets Query Vector Services Overview

In order for users to easily reference vector fields, facets are available. Users are able to query the available vector fields globally or within a specific area, and then set up queries within VectorServices to retrieve only the specified fields discovered within the facets.

See: Vector Services Facets Reference Overview.

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General Query Vector Services Overview

The VectorServices provides the analyst with a tool for visually mapping all available vectors within a given aoi. Analysts may then refine the resulting vectors into a desired selection. These quickly polled and returned arrays of points, linestrings, and polygons may then be used in further analytical studies of the area.

The general API endpoints work with any application.

See: Vector Services General Reference Overview.

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Shape Query Vector Services Overview

When the aoi that the user wants to work with is not a bounding box, VectorServices provides the ability to query over shape(s). These calls work with points, multi-points, linestrings, multi-linestrings, polygons, or multi-polygons, and provide the same functionality as the General Vector Services, quickly polling and returning arrays of points, polylines, and polygons that intersect the shape aoi(s), and that may then be used in further analytical studies of the area.

The Shape endpoints work in any application.

See: Vector Services Shape Reference Overview.

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Vector Services Course

Introduction to the various parts of Vector Services