# PS Scattered Lookup Table (3D)

**Libraries:**

Simscape /
Foundation Library /
Physical Signals /
Lookup Tables

## Description

The PS Scattered Lookup Table (3D) block computes an
approximation to some function `f=f(x1,x2,x3)`

given the coordinates of a
scattered set of input data points in a 3D space and function values at each of these data
points. The three inputs and the output are physical signals. The inputs specify the
coordinates of a query point along the three directions. The output is the computed function
value corresponding to the input query point.

The block computes an output value by using Delaunay triangulation to interpolate the
query input value against an unstructured, or scattered, set of data points. You define the
lookup table by specifying the **Data points coordinate 1** parameter (vector
of data point coordinates along the first direction), the **Data points coordinate
2** parameter (vector of coordinates of the same data points along the second
direction), the **Data points coordinate 3** parameter (vector of coordinates
of the same data points along the third direction), and the **Data points function
value** (vector of function values corresponding to each of these data points). All
four vectors must be of the same size.

## Ports

### Input

### Output

## Parameters

## Extended Capabilities

## Version History

**Introduced in R2023a**