Wednesday, May 5, 2010

Re: GPS Time / Elevation graphs. Anyone got any info on doing these?

Thanks Barry

That link seems to talk about the elevation service, whereas I have
the elevation and time data from the GPS data.
Yes, the vis API seems to "handle" arbitrary time points, but I am not
sure it is correcting the graph to make the x axis constant or is just
plotting the values giving the x axis no real meaning. I want people
to be able to examine gradient from the graphs, which is impossible
without a constant x axis.

To view a graph on the site:

Either:
Find an existing line (Green icons) and click on it. Then in the right
pane, click "Show Altitude Graph".

Or:
Log in, click the "My Locations" tab on the left, click the "Add
Location" button.
Then, then in the right pane, click the "Line" radio button and start
clicking the map to draw a line, or click the "GPX Import" button to
upload a GPX trace.
Then you can click the "Show Altitude Graph" button to show the
altitude graph for that line.

Regards

Clive

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