Routes

Create or import a route

Create a route in the map data list

Click the Create new map data button at the top of the User Map Data list and select Route. Then click on the map to place the route waypoints.

Create a route using the right-click / long-press context menu on the map

Right-click on the map and choose the option to create a route. Then continue placing waypoints on the map.

Import a route

Routes can be imported from supported route files in RTZ and RT3 format. Click the Import file button at the top of the User Map Data list and select a file from your computer. Alternatively, you can simply drag'n'drop a file onto the map from somewhere else on your computer (e.g. file explorer).

Edit a route

You can select a route by clicking it on the map or choosing it from the User Map Data list.

Selecting a route opens the edit dialog at the bottom of the map. From there, you can open the Edit waypoints dialog, which appears on the right side of the map and allows you to manage each waypoint individually.

Edit waypoint details

For each waypoint, you can:

• Set an individual label
• Edit the coordinate values
• Delete the waypoint
• Choose the leg type, such as Rhumb line or Great circle

Move waypoints on the map

You can change a waypoint position by dragging it directly on the map. You can also update its position by editing the coordinate values in the Edit waypoints dialog.

Route leg information

Information about each leg is shown between the waypoints in the Edit waypoints dialog.

Distances for individual legs are also displayed next to the route on the map when the route is selected. You may need to zoom in to see them.

Distances are shown in the unit configured in your settings (nautical miles or kilometers).

Insert waypoints

You can add new waypoints to an existing route in several ways.

Insert by hovering over the route

Hover over a selected route. A plus marker appears on the route. Click the marker to insert a new waypoint at that position.

Insert from the waypoint context menu

Right-click a waypoint of a selected route and choose Insert before or Insert after. This inserts a new waypoint into the selected segment.

Insert by splitting a segment

In the Edit waypoints dialog, use the Split button to split a segment in half. This adds a new waypoint in the middle of the segment.

Delete waypoints

You can delete waypoints in two ways:

• Use the delete button in the Edit waypoints dialog
• Right-click a waypoint of a selected route and choose the delete option

Hide a route

You can hide a route on the map using the Hide button or the button with the eye icon in the User Map Data list. Please note that you can only unhide a route from the User Map Data list.

Delete a route

You can delete the entire route using the delete button in the route edit dialog or from the User Map Data list.

Further information

Rhumb line and Great circle

When defining a route leg, you can choose between Rhumb line and Great circle. These affect how the path is drawn between two waypoints. The default type is Rhumb line, as routes are intended for navigational use.

Rhumb line

A Rhumb line follows a constant direction (bearing).

Unlike the more common Mercator projection, Rhumb lines typically appear curved on IcySea's Polar Stereographic map, especially over longer distances.

Great circle

A Great circle represents the shortest path between two points on Earth.

On the Polar Stereographic map, Great circle legs usually appear straight or nearly straight, particularly in polar regions.