# JS API Reference

# Welcome to the Highcharts JS Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

Feel free to search this API through the search bar or the navigation tree in the sidebar.

# plotOptions.networkgraph.layoutAlgorithm.theta

Barnes-Hut approximation only. Deteremines when distance between cell and node is small enough to caculate forces. Value of `theta` is compared directly with quotient `s / d`, where `s` is the size of the cell, and `d` is distance between center of cell's mass and currently compared node.