Layers and styling

A map is a stack of layers over a basemap. This page covers building that stack.

#Add layers

• From the This project panel: click a dataset or form layer to add it to the map.
• From your files: import a GeoJSON, GeoPackage, GeoTIFF or zipped Shapefile straight onto the map.
• From the catalogue: add a dataset to the project first (see Find data in the catalogue), then add it here.
• By drawing: create your own points, lines and polygons directly on the map.

Layers draw in the order shown in the layers panel — drag to reorder, and use the eye icon to hide one.

#Style a layer

Select a layer to open its styling. You can:

• change colour, size, opacity and outline;
• style by attribute — for example colour facilities by type, or size points by a number;
• add labels from any attribute.

#Edit features

You can select a feature and change its geometry, and edit attribute values, in the browser. Editing a project's own layer changes that layer; editing a form layer changes only how it is shown on the map — the form's submissions are never altered from here.

#Choose a basemap

Pick a basemap from the basemap control: street, light, dark or satellite-style backgrounds. Some basemaps need a token that only the map's author has; when someone else views your published map, OrionGIS automatically substitutes an equivalent open basemap so the map still draws (satellite becomes imagery, dark stays dark, everything else becomes a neutral street map).

#Coordinate systems

Layers in different coordinate systems are reprojected on the fly so they line up. You do not need to convert data before adding it.

#Form layers on a map

A form layer is drawn as points (or lines/areas for line and area questions). Click a point to read that submission. Because form layers are live, reopening the map shows new submissions. See Form data as a map layer.