measure slope/plan trips on google maps

Excellent development.

Using the USGS Topo maps it's possible to zoom right in. Thus it's possible to get a totally accurate slope angle measurement (I know I'm sad...).
I also like the toggle between split & single screens as I don't really use split screens.
You've lost the distance measurement on the profile-path x axis which was helpful.

Excellent stuff. I'd be really happy to help test it. Feel free to PM me.
Jake

I really like the development of this tool. Thanks for putting in the work, I'll definitely put this to use in trip planning.

One more idea... it is possible to toggle the tools/footnotes etc. to either minimize or temporarily hide them in order to maximize map size while working with the map? This would give maximum workspace for working with, and maybe printing.

Thanks guys.

Jake, axis labels are there in chrome still I hadn't realized I broke it in firefox...I'll fix it soon.

Koda, I'll see what i can do about a fill window mode but you should give the print dialog a try for printing...it lets you generate a higher resolution map (by making a bigger webpage) which should give you better prints if you tweak your printer settings to scale it to fit your paper...you may have to play with various settings.

Topos for Canada from NRCan will hopefully be up soon, still waiting on mytopo.com other stuff will take longer.

Feel free to PM me with any issues or bugs or suggestions, I don't have official testers or anything...

Sorry to dredge up an old thread but I am stoked. After much hacking I managed to implement cookiemonster's suggestion of slope angle overlays in a way I am starting to be happy with. It lets you highlight areas steeper then any specified slope angle and it works for the entire lower 48 states, hawaii and parts of alasks.

To try it:

Go to hillmap.com

Navigate to your area of interest.

Click on "data and analysis" at the top of your screen.

Click on "hillmap slope analysis"

Click on "Analyze on Screen Area"

The results are calculated (by javascript in your browser using data loaded from usgs webservices...it may take a few seconds) for the onscreen area only but they stay on the map as you pan and zoom so you can do the analysis for the whole area of interest and then zoom in.

There is a lot of artifacting (pixelation and contour lines) in the resulting analysis due to the resolution of the underlying USGS data service so I wouldn't trust it as my only source of information but I have found it to be be very useful for getting the lay of the land...I hope some of you find it useful too.

Awesome!

The results are fantastic!