To better serve people who are color blind, communicate using "text and characters" the numerical range that corresponds to the slope angle shading color at the center of the map

Moses's Avatar

Moses

09 Jan, 2021 07:47 PM

Feature Request: To better serve people who are color blind, on CalTopo maps (desktop and apps), communicate using "text and characters" the numerical range that corresponds to the slope angle shading color at the center of the map. 
ex. 27-29, 30-31, 32-34, 35-45, 46-50, 51-59, 60+

Communicating slope angle estimate ranges using "text and characters" in addition to colors will be especially useful for people who are color blind, for people who for whatever reason have trouble discerning the colors of the slope angle shading (failing vision?), and for people using the map in conditions where discerning/interpreting the slope shading color is difficult. (ex. strong sunlight, sweat running down foreheads into their eyes, etc.), and would simply provide the exact same numerical range that the slope angle shading color at the center of the map is intended to provide and already providing.

This information could be provided in the upper right portion of the map in the "infobox" where lat-long and elevation is provided.

Thanks, great products!

  1. 1 Posted by Moses on 10 Jan, 2021 01:15 PM

    Moses's Avatar

    As an FYI, here's an example where people had trouble discerning the color of the slope shading on a CalTopop map.
    https://help.caltopo.com/discussions/general/8660-what-slope-angle-numerical-range-does-the-blueish-color-represent

  2. Support Staff 2 Posted by matt on 13 Jan, 2021 06:58 PM

    matt's Avatar

    Putting actual numbers on the map isn't workable due to technical reasons.

    I've gone back and forth on adding slope and aspect numbers to the coordinate window at the top right, especially as NAD27 has fallen out of favor with the disuse of older paper maps, so showing the datum is not as critical. It's certainly something on the list to consider, but particularly on a phone where screen real estate is limited, it's also something we need to approach carefully.

  3. 3 Posted by Tom Cal on 13 Jan, 2021 10:00 PM

    Tom Cal's Avatar

    Maybe provide users a way to select what information (lat long, aspect,
    elevation, steepness, datum, etc ) is displayed in the infobox on the map?

Reply to this discussion

Internal reply

Formatting help / Preview (switch to plain text) No formatting (switch to Markdown)

Attaching KB article:

»

Attached Files

You can attach files up to 10MB

If you don't have an account yet, we need to confirm you're human and not a machine trying to post spam.

Keyboard shortcuts

Generic

? Show this help
ESC Blurs the current field

Comment Form

r Focus the comment reply box
^ + ↩ Submit the comment

You can use Command ⌘ instead of Control ^ on Mac