Basecamp & Earth Curvature

1.  Not that I know

2.  Not sure what you're trying to do here, what 'path'?

Thanks for the reply!

Spoke with Garmin support yesterday and they confirmed that on basecamp and the gpsmap there is indeed no native way to get a Mercator-projection view so that answers question 1 as you have also confirmed.

Regarding my second question by path I'm referring to the line from the point marked 'Start' to the point marked 'End'

This image is taken from Google Earth Pro and is around 40km along the yellow line. As you can see there green checkmark is bang on the line as intended.

However when it comes to Basecamp and the GPSMap itself it is far further south and ends up going through a lake.

My question is really which of these 2 images is likely to be what i will actually come up against? Hope that makes sense

I suspect BaseCamp wasn’t intended to be used that way.

It’s more concerned about paths between “reasonably spaced” waypoints.

In any case, you are doing something but you don’t say why. (What you are doing isn’t really something most BaseCamp users need to care about.)

3629392 said:

When it comes to following this path

??? I doubt you’d really ever be following this path.

dpawlyk

Not sure why I am doing it is any help but because I can... is my best answers for you haha

The question isn't at all about what or why it's solely about the differences between the basecamp and google earth projection and if either is more representative of real life if you were to follow the line.

3629392 said:

Not sure why I am doing it is any help but because I can... is my best answers for you haha

Generally (almost always), people are asking questions about practical things. Understanding what they want to do is often useful to figure what they should do.

Knowing that your question is more theoretical is useful (since most questions are practical).

3629392 said:

The question isn't at all about what or why it's solely about the differences between the basecamp and google earth projection and if either is more representative of real life if you were to follow the line.

You almost answered that question yourself. 

If GE is using a projection and BaseCamp not, then the line has to be converted to match what BaseCamp uses. The line should be a curve in BaseCamp. What you are doing is missing the conversion step.

The easiest way to do the conversion is to use more waypoints.

3629392 said:

more representative of real life if you were to follow the line.

The lines (between points) are estimates of the path to take. 

The more points (making the lines shorter) the “more representative” things will be. 

Converting it from a track into a route as suggested by BTLAAKE fixed the problem, I assume that's also what you meant by having it be a curve? 

Thanks for your help regardless though mate.

3629392 said:

Converting it from a track into a route as suggested by BTLAAKE fixed the problem, I assume that's also what you meant by having it be a curve? 

Basically.

You want to place the points you want to pass through and let the program (BaseCamp or GE or whatever) connect the dots (draw the line between them).

With only the two endpoints, the line being drawn by GE is going to be different than the line drawn by BaseCamp because the two programs are making different assumptions about how to move from one point to another.

The line being drawn in GE is curved in BaseCamp.

Sort of like the red line below (which is very exaggerated).

The following is a line path with (hand-positioned) waypoints placed along the line created in GE. The middle waypoints are also shifted along a curve that is above the gray line (the line BaseCamp draws between the endpoints. But it's hard to see that the points are shifted.

The following is the second and third points zoomed in.

The magenta line is the path between the points. The gray like (below) is the path between the two endpoints.

Note how they deviate and that the deviation is larger the farther away from the endpoint you are.