Slope Analysis only give 2 ranges

[neilyj666]

Can anyone shed any light on why I can only get 2 Slope ranges in my analysis - even when 6 are chosen?

[Hidden_Brain · Accepted solution]

check the surface style, under analysis tab>slopes>group by. yours might be set to equal interval, change to quantile and run analysis again.

[neilyj666]

Perfect solution - that was indeed the problem....:)

[doug_manville35K9Y]

getting this same issue in 2020, 2022, 2023 and 2024. it is repeatable. something is broken. i can see the analyzing date box flash then then it stops. any one else having this issue.

[Udo_Huebner]

If the terrain consists of only a few and very flat triangles, it may not be possible to create as many ranges as entered. In this case, first check the surface statistics or post the DWG here.

[doug_manville35K9Y]

[doug_manville35K9Y]

Thanks for the fast response.

I am able to create a new style and to get it to work, but I can't see any difference in the 2 surface styles. I tested your theory on the limited triangles on a test surface and was able to produce the error as you have stated. this surface has a lot of triangles. I'm wondering if the surface style is corrupt.