The map

An app opens as a map with a rail of tools down the left side and, next to it, the panel of the tool you picked. Every icon on the rail says its name when you hover over it.

#The tools

Tool	What it does
Layers	Switch layers on and off, see their legend, open a layer's options
Search	Find features by the text in their attributes — see Finding and reading data
Identify	Read the attributes of what you click on the map
Selection	Select features by a point, a rectangle, a polygon, their attributes, or their relation to another layer
Attribute table	The table of a layer's features
Measure	Distances and areas — see Measuring, drawing and sharing
Draw	Draw and save shapes and labels, and share them
Edit features	Change the app's data — shown only to editors, where the app allows it (Layers and editing)
Coordinate grid	Draws a labelled grid in the chosen coordinate system
Compare	Slide a divider across the map to compare a layer, or two layers, with what is under them
Bookmarks	Save the current view and go back to saved ones
Print	A map sheet as a PDF or PNG, at a true scale — see Printing
Share	A link to this view

At the bottom of the rail: Basemap (when the app offers more than one — Map, Light, Satellite), Help, and the appearance button. Hide the panel at the top of the panel gives the map the whole width; Show the panel brings it back.

#Layers

In Layers, tick a layer to show it; click its name to do the same. Layers can be grouped in folders: a folder's box switches everything in it, and its arrow opens or closes it. A layer with several classes has a legend you can open under it.

The … button of a layer (Layer options) offers:

• Zoom to layer — the whole layer on screen;
• Attribute table — its features as a table;
• Layer info — its dataset, number of features, geometry, style, extent, legend and fields;
• Opacity — from 0 to 100 %;
• for editors, where the app allows editing: Make an editable copy, Add field, Calculate field; and links to the layer's style and settings in Studio.

Cartema remembers, for you, which layers were on, the view, the basemap and the other choices you made, and opens the app as you left it.

#Coordinates and height

The bar at the bottom right of the map shows, under the pointer:

• the coordinate system — click it to choose another of those the app offers (for example WGS 84, a UTM zone, or the Israeli Grid);
• the coordinates, each with its axis: E and N (easting, northing) on a grid, or latitude and longitude with N/S and E/W in degrees;
• the height of the ground, H: from the app's own terrain model to the decimetre when it has one, even if that layer is switched off; elsewhere, marked ≈, from a world terrain model with cells of about 30 m, a few metres out;
• the scale bar and the scale (1:n).

Coordinate grid in the rail draws a grid in the same coordinate system, its interval chosen for the zoom.

#Moving around

Drag to move, scroll or pinch to zoom. The buttons at the top right zoom in and out, turn the map back to north, and — my location — show where your device is (your position stays on your screen; it is not sent to Cartema).

#On a phone

On a phone the app opens on the map with the panel closed. Picking a tool raises its panel from the bottom as a sheet you can drag higher or lower. The coordinate bar keeps only the scale. For work in the field there is also Cartema for iPhone.