Profile Issues

[aksnowbiker]

TF 3.18, Win XP sp 2

I'm trying to generate a profile of an edited track.  The track was collected using a eTrex Vista HCX.  If I use the profile tool and click on the un-edited track, I get a good looking profile, and useful information about grade, max elevation, distance and so on.  If I delete even a single point of the track, the resulting profile is garbage.  The profile is either completely or nearly flat, and the reported length is in the tens of thousands of miles (from a 30 mile track).  Is there a way to delete points from a track and not have this behavior?

I thought that perhaps I could use the sliders in the profile window to show me just the area of interest, but although I get the right profile visually, the statistics are still for the entire ride, which is not useful for this particular purpose.

As an aside, I'd like to put in my vote for improving the profile (get rid of jaggies) for hand drawn tracks.  

Thanks,
Tom Clark

[Krein]

That really shouldn't be happening (bogus profile after editing the track in any way).

First though is to upgrade to the latest version of TF.

Second, if you can reproduce it I'd sure love to take a look at the track (with some description of what point(s) you are deleting).  I just deleted a point from a track and the resulting profile was OK (v3.30, though).

Yep, the stats are still for the entire ride.  We're hoping to get that functionality rolling soon.

As for jaggies, agreed for sure.  Smoothing is on the list too.

Thanks for the feedback.

[aksnowbiker]

OK, I've upgraded to TF v3.30.  Thanks, btw, for the handy link on the website to resend download and registration info.

v3.30 does the same thing.  I select an arbitrary point, delete it, and when I view the profile, it is a pack of lies.

Here's a link to a GPX file of mine, and some before and after images of the profiles that I'm seeing:

Note that the images are of v3.18, but I get the same behavior in v3.30.

sample GPX file

Good profile.

Ugly profile.

Does the fact that I have to use self downloaded DEM files enter into this?  (The automatic downloading of DEM information doesn't work for my latitude.)

Thanks again,
Tom

[Krein]

Just double checking, but those screen shots are not from v3.30 (you may have made them before you upgraded, I'll bet).

I'm still not able to reproduce the problem.  Can you email your TopoFusion.ini file to support@topofusion.com ?

Can't think of what setting could be causing it, but there must be something different.

[aksnowbiker]

The .ini file is on it's way.  I might try deleting mine and letting TF v3.30 build a new one.

Thanks,
Tom

[aksnowbiker]

As a quick follow-up, I've removed the TF .INI file and reinstalled 3.30 to let it build a new one.  I still get the same bogus profiles.  

I've noted that if I delete a point from the track, quit TF (saving changes), reload TF, I can produce a good profile.  

In addition to hopefully being a good tidbit of information, it appears to be a workaround for now, albeit clunky.

Thanks again,
Tom

[Krein]

Tom,

Thank you very much for helping us debug this.  Turns out there are two ways to bring up a profile for a track.

One way correctly dealt with deleted points (right clicking on a track and selecting Profile).  The other way, which you were using (the profile tool itself) did not handle them correctly and resulted in bogus profiles.

We've fixed the bug in the latest version -- v3.31, out today!

Thanks again.