algorithmMargin property
Set the default pathfinder margin to use, in pixels. Some Pathfinder algorithms attempt to avoid obstacles, such as other points in the chart. These algorithms use this margin to determine how close lines can be to an obstacle. The default is to compute this automatically from the size of the obstacles in the chart.
To draw connecting lines close to existing points, set this to a low number. For more space around existing points, set this number higher.
API Docs: https://api.highcharts.com/highcharts/connectors.algorithmMargin
Implementation
double? algorithmMargin;