terraforming tool

[Schattengaenger]

Hi,

as the title says I am looking for a way to simulate terraforming outside of the game. just like there are tools like the Haven Material Designer that let's you see buildings and set different building materials to see beforehand how it would look ingame or the Hafen Cookbook that lets you search for the right recipie for the FEPs you want, I was looking for a grid field that can be altered to simulate terraforming in Haven and Hearth.

I am a strong beliver in that cities should be build without flattening it to a featureless disk and thus am planning my projects with hight differences in mind, but while I know the basic rule of terraforming (you can have a maximum hight difference between one corner of a square of 2.0m to any other of the same square in steps of 0.1m) it is really hard to plan it on a sheet of paper and hoped there is a online tool or smth that let's me manipulated the grids in that way to play around with it and see what looks best.

Thank you for answers in advance.