# Welcome to the Highcharts Maps JS (highmaps) 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.

# mapView.insetOptions.relativeTo

What coordinate system the `field` and `borderPath` should relate to.

If `plotBox`, they will be fixed to the plot box and responsively move in relation to the main map.

If `mapBoundingBox`, they will be fixed to the map bounding box, which is constant and centered in different chart sizes and ratios.