8.2.9.2    Edit a track

 

To edit a track that has already been created, follow these instructions:

 

1.   Use the right-hand button of the mouse to click on any part of the track and select the option ‘Edit’. The edition bar will open (vectorial editor).

 

2.   Use the following tools to modify the course of the track:

 

     Insert intermediary point: This tool automatically detects the two points nearest to the pointer and it will allow you to insert an intermediary point between them. To do this, once you have decided where you want to insert this intermediary point, use the left-hand button to create the new point.

 

     Add points: This tool allows you to add new points onto the track starting from wherever you want. To do this, select the point (left click on it) and then select the tool add points. You can add points to the beginning and the end of the track (if that is where you are) or an intermediary point (if you are somewhere in the middle of the track).

 

There is a quicker way of adding new points. This is how to do it: once you have situated yourself on the point from where you want to add new points, hold the ‘Control’ key down. While you hold this key down, move the pointer to where you want to add the new point and click on it with the left-hand button of the mouse. Continue holding the ‘Control’ key down and continue clicking on new points with the left button until you have finished adding all the points you want.

 

NOTE: Although the tool ‘Add points’, if you use it to add points in the middle of the track, could seem to be similar to the other tool insert intermediary points, the insert intermediary points tool is less versatile because it is only designed to refine the course of a track.

 

     Draw by dragging the mouse: If you use this option to edit a track, it will be like free drawing it. To use this option, first select the point where you want to start adding points from and then click on the tool. Now hold down the left-hand button on the mouse and move it while you draw the new points. If you have chosen to start adding points at the beginning or the end of the existing track, you will be lengthening these sections. If you have started adding points in the middle of the track, they will be joined up with the next point of the track.

 

IMPORTANT: it is more practical to edit a track in the same direction as the track was created, from the beginning to arrival.

 

     Eliminate a point: Select the point that you want to eliminate and click on this button to eliminate it. When you do this, a straight line will joint together the two points situated either side of the point that has been eliminated.

 

     Undo: Click on this button to undo the last operation you made on the track. You can undo all the modifications you have made even after you have saved the track and re-loaded it onto the screen. Take care because once you have undone the changes you cannot re-do them so you will have to re-edit the track again. As well as all these tools you can also move any point that has been already been created by clicking with the left button on it, situating it where you want it to be and letting the button go so the point is fixed.

 

3.   If you are now satisfied with the course of your track close the track edition tool bar (vectorial editor) by clicking on the cross on the left of the bar. You can now carry out the normal operations to do with a track such as consult and edit the properties of the track or view graphs associated with it.

 

4.   If you want to assign a time to each point of the track (this is necessary to view an animation) you will have to choose the option ‘Assign time and speed’ (you will find this option in the tools of the context menu of the track on the main screen or on the data tree). The window that appears will ask you to assign a departure time and steady speed. This will allow Land/Air to calculate a time prognostic for each point of the track.

 

5.   If you have created a track without having first loaded a 3D landscape, the track will not record any altitude readings. To include them, with the track already loaded, now also load a landscape and select the option ‘Calculate altitude over ground-level for each point’. You can access this option in two ways:

 

     Open the context menu of the track and select this option from the tools section.

 

     Open the context menu of the track on the data tree and select this option from the tools section.

 

6.   Save the track if you want to use it or modify it later on. You can save it by clicking with the right-hand button on any part of the track or using the name on the data tree.

 

     If you choose to ’Save’ the track, it will automatically be stored on top of the old track, so you will loose the old one (the un-modified track).

 

     If you want to keep the original track, you will have to select the option ‘Save as’ and give the track you have been working with a new name. The next time you want to use the edited track you will have to look for it wit the new name you have given it.