The Interface
The left menu contains all available raster layers distributed by WMS servers selected in the configuration file. Cesium library support drag and drop displaying for GeoJSON files: in order to display planetary GeoJSON they must contain coordinate reference system information following the planetary standard described here.
The Trash button allows to remove all vector data displayed on the surface planet (remote catalogs, drawn entities, local datasources,...): be careful, vector data are lost if removed via the Trash button.
In order to just hide them a 'Hide vectorial data' feature is available on the bottom of the left menu.
The Tools Widget contains all available analysis tools: one-click on it will open the tools menu, one-click again will close it.
The coordinate tool allows to display longitude and latitude coordinates when mouse is over the planet: one-left-click on it will open the display, one-left-click again will close it.
The grid tool is the standard Cesium [ShowGrid](https://github.com/epn-vespa/cesium/tree/planetary/Source/Widgets/ShowGrid) widget. It allows to display a dynamical pixel grid on the planet. One-left-click on it will display the grid, one-left-click again will remove it.
GeoJSON does not define circular entities. 'Point' features can be displayed as circles if they are provided with the 'radius' property (in meters). The circle/point switch tool allows to switch from point to circle representation. Notice that first display is always as point.
