What about running a Scalar Generator into the Radial Gradient (with diamond or cone setting) and then you would be able to essentially go from a vertical slope to a flat horizontal slope in the scalar range of 0-1.
Maybe could convert the slope to want to radians and then get the 0-1 scalar value you need to plug into the Scalar Generator node.

Hummm, am I thinking about this correctly? For a 5% grade:

Take the cosine of the radian angle to get the scalar value needed to put into the Scalar Generator node:
cos(radians) = scalar value
cos(.0785) = .99692

Been too long since I tried to do this stuff. :roll:

AFAIK slope percentages are not related to the angle but to the amount of height variation w.r.t the horizontal position. A 5% slope means 1 meter every 20 meters, not 5% of 90 degrees (tan(4.5) = .079, which is much larger than .05).

For future posts, make sure “Notify me of replies” is checked on the “Additional Options” below the text box, so that you are sent an email… To get that on by default, you need to go to your profile, and in “notifications and Email” check the option “Turn notification on when you post or reply to a topic.” 8)