mothlady

Hi - my first question to the forum: I have three separate tracks in mapsource. I which to join them. The three tracks don't have the same beginning and end point. When I select all three tracks (by holding down shift and selecting the track names on the left under the 'tracks' tab), and hit "join" in the tools menu, nothing happens. When I right click after selecting the three tracks, the "Join selected tracks" is grayed out. I don't want any straight lines added, I simple want the tracks I'm looking at to be all under one track name. Help!

dav

I don't actually know how to do that, never having tried. But I want to welcome you to the site.

mothlady

Argh. I'm not getting much help about this topic. I can delete a line in the track, but when I do that, it also deletes the track point at each end of the line. I simply want to delete the line and keep the track points. But .... thank you for the welcome.

dav

Might help if we knew more exactly what you are trying to accomplish.

A track is, kind of by definition, a single beginning point and a single end point with connections between.

I can see why it would not let you create a single track out of three separate tracks. They are, after all, separate. Not one, by definition.

If you connect each to the other and make them one, then all the track points are included. Makes sense, to me.

So it sounds like what you want is not actually possible. I'm hoping I'm reading it wrong and there is a way to do what you want. But I can't see it based on what you've said, so far.

kimmerj

Hi All,
I'm new to this site. How do I post on the Garmin 750 forums. i have a question about my Nissan purchase of their integrated nuvi 750. Thanks!

mothlady

Dav - here goes a long explanation, but maybe it will make things clear. Lets say you wanted to track your path along a trail, and that trail is a large rectangle. So, you begin at the upper left corner - corner A. You head to the upper right corner - corner B. Then you head down to the lower right corner - corner C. All along your path multiple track points are being made as you walk, as well as the track points in the corners. Now ... something happens and you have to get back to corner A, so you go directly there, even though the trail really doesn't go there. So I want to later delete that line that goes from corner C to corner A, and on another day I can begin tracking at corner C, then go to the lower left corner - corner D, than back to A. So ..... when I want to delete the track from corner C to corner A, I want to leave the track points in the corners, but delete the line that connects them. When you use the track delete or erase, it erases the track point at one end of the track line as well as the line, and creates another track line across connecting to the preceding track point. Phew! If you can follow this, you're amazing.

dav

Sounds more clear, mothlady. In this example you just want to delete all points after your marker point, corner C.

Then at a future time, if you start at point C you can make it appear to be part of the original track.

Rather than deleting a "track", won't it simply let you delete all the undesirable waypoints? (I haven't tried to do this stuff, so I don't know much about it)

If what you are working on is something you can share, you can email me the file and I'll try to do what you are trying, too. I might be able to see it better while I have the program up.

mothlady

Dav - I tried sending you a mapsource file, and it won't let me attach it to this e-mail. But, open your own mapsource, and draw a new track consisting of at least a few track points (no waypoints). Now, try to delete a line between any two of the track points, but leave the points there.

dav

mothlady, you want the "Track Divide" feature under Tools. It is not intuitive, but it lets you divide your track and leave the end points intact.

Touching the end point of the 2nd leg of your walking 4 sides of a square example, it will separate the two sides into one track and the "across the diagonal" line into a separate track, which can then be deleted.

This works for removing the center line of a track, too. Use Track Divide twice to isolate any line section and you can then delete that line while leaving the end points intact.



(sorry it took so long to get you an answer!)

mothlady

Dav - You're right, the track divide tool is not intuitive. I had already tried that tool, but when I choose that, then click on the section of track to divide, it doesn't just select that selection as first. I have to click several times to get just that section selected; and in the meantime, it's creating separate tracks with the other parts of the track. I guess this is the best mapsource can do now, but it's very cumbersome. Thank you for your time.