(Posted on behalf of user)
Create 3d by slope to target not working as expected. I am applying the tool to a 3d line that is in cut. I want the slope be -1% to the existing terrain. It always ties to the existing terrain at a positive slope. It does not matter what i enter into the tool under the cut slope, It ties in a positive slope.
If the line is all in cut and the Slope Option is To Terrain Model then the solution to tie to that terrain should be positive. What are the options you are usint in the tool settings for the Create 3D Line By Slope?
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Beebe,
I've attached a pdf showing the problem. In the tool, the settings are: To Terrain Model, Cut and Fill. Begin Cut and End Cut slope 1.0% (and -1.0%) tried both. We set a side and locked to beginning and end. Transition constant. Corner rounded. Fill Begin and End 33%
Thanks
Rick
5 years later, using Geopak SS4 .878, I'm seeing this in my quest for a fill slope, and I have additional insight to share.
Case 1: I have fill only, with start and end fill slopes both at -1%. The resulting 3D element is 1% below the reference element.
Case 2: I have fill only, with start and end fill slopes both at +1%. The resulting 3D element is 1% below the reference element.
Case 3: I have fill only, with start fill slope at -1% and end fill slope at +1%. The resulting 3D element transitions from 1% below the reference element to 0% and back to 1% below the reference element.
Case 4: I have fill only, with start fill slope at +1 and end fill slope at -1%. Result is the same as case 3.
Observed pattern: The slope at any given location is interpolated using the values given directly, but the result uses the absolute value of the interpolation.
Problem: This is not only obviously confusing, but it also constrains our use of this tool to cases where the fill slope is assuming a downward slope and a cut slope is an upward slope.
Secondary problem: Using "cut only" is not appropriate for my case because now the resulting 3D element will be placed only where that 1% slope intersects the surface from below. (Which, by the way, would be an amazing feature in template construction.)
Recommendation: Use the actual values that we provide, not the absolute value.