Drawing a line that snaps to a fixed grade/slope?

Gabriel Amadeus Tiller's Avatar

Gabriel Amadeus Tiller

28 Feb, 2020 07:28 PM

Just dreaming here, since it sounds rather complex to build...

I'm a trail planner and do a lot of freehand drawing lines on maps. Typically we aim for certain types of trails to fall within a certain slope percentage range. e.g. a climbing trail for mountain bikes should maintain a ~5% slope if possible. I'm imagining drawing tool that either:

1) Automatically drew a line with an even gradient between two points on a map, or
2) A line drawing tool where you specified the slope percentage you wanted, which would then snap to the topography along the line maintaining that slope.

Has anyone used or seen a tool like this? Or know what it would take to build one?

While I'm at it, is there a 'smooth' function in the works to buff out the angular nature of freehand line drawing? Either an auto function, or a bezier curves tool like in indesign.

  1. Support Staff 1 Posted by rmarcucci on 28 Feb, 2020 10:10 PM

    rmarcucci's Avatar


    These are certainly interesting ideas. I'll pass them along.

    Thank you for using CalTopo,

  2. rmarcucci closed this discussion on 28 Feb, 2020 10:10 PM.

  3. Gabriel Amadeus Tiller re-opened this discussion on 28 Feb, 2020 10:14 PM

  4. 2 Posted by Gabriel Amadeus... on 28 Feb, 2020 10:14 PM

    Gabriel Amadeus Tiller's Avatar

    Appreciate it, thank you!

    Gabriel Amadeus Tiller

    *Executive Director,* *Oregon Timber Trail Alliance*
    *Founding member, **Oregon Mountain Biking Coalition*
    *Board member,* *Bikepacking Roots <https://www.bikepackingroots.org/> *
    *A new way on old ground, **Orogenesis Collective
    *Advisory board member,* *Oregon Trails Coalition*
    *Founder, **Limberlost* <http://limberlost.co/>
    *@gabrielamadeus <https://www.instagram.com/gabrielamadeus/>*
    *Pronouns: he/him/his*

  5. rmarcucci closed this discussion on 28 Feb, 2020 10:18 PM.

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