There should just be one kind of waypoint.įeel free to ignore if this is too rudimentary or not inline with future plans or designs.One of the first things you will need to do when installing an AIS receiver or multiplexer, is to select and install your chart software. What seems starange to me is that waypoints created by the latter do not appear in the Route Manager dialog, unless thay are removed from a route ! I'm sure there is/was some logic to this, however a wayppoint is a waypoint is a waypoint. The other area where this breaks down, is that it seems that there are two 'classes' of waypoints those that are created via the Route Manager dialog and by dropping a waypoint on the chart, the second are waypoints created by creating/drawing a route on the chart. More work, and not implemented in the next release of TwoCan.

It would be possible for the plugin to have a journal to keep a log of the new updates and whether thay have been forwarded. Firstly if the two devices are not online, then the notifications/updates are lost. Note tht this has only been tested on B&G chartplotters which btw also transmit newly created waypoints on the NMEA 2000 network, so the reverse can be performed.

The messge contains the name, guid, creation date, latitude & longitude which are sufficient to enable the creation of a waypoint on other devices.įrom the TwoCan plugin perspective, it means that if both OpenCPN & a third party device are both online, when a new waypoint is created on OpenCPN, either from the Route Manager dialog, or from dropping a waypoint on the chart, the TwoCan plugin can insert the waypoint on to the third party device. This patch provides a Plugin Message so that other plugins may be notified that a new waypoint has been created. The message is not raised when editting the properties of an existing waypoint nor when waypoints are created when drawing a route. This plugin message 'OCPN_WAYPOINT_CREATED' is only raised when a new waypoint is created from the Route Manager dialog, or by dropping a waypoint on the chart, which is initially un-named and then editing its properties, providing a name and saving.

In order to provide at least some framework for synchronizing waypoints with other devices, a notification mechanism is required.

Opencpn nmea 2000 network