Buffer H3 indices

Supported in: Batch, Streaming

Creates a buffer of distance k from an array of H3 indices.

Expression categories: Geospatial

Declared arguments

• Array of H3 indices - Array from which a buffer of distance k is created.
  Expression<Array<H3 Index>>
• Distance k - Distance k implies a buffer of k H3 cells. Value of k must be >=0.
  Expression<Integer>

Output type: Array<H3 Index>

Examples

Example 1: Base case

Argument values:

• Array of H3 indices: h3Array
• Distance k: 0

---

Example 2: Base case

Argument values:

• Array of H3 indices: h3Array
• Distance k: 2

---

Example 3: Null case

Argument values:

• Array of H3 indices: h3Array
• Distance k: 1

---