You can drag and drop the .ghpy file inside the "GH Component" folder into the Grasshopper environment. Then you can find the component in the "AliT Toolkit > Site" in the Grasshopper tabs. Or you can use the source .gh file in the "source code" folder.

A list of topography contour curves in their actual height.

A planar rectangle curve describing the boundaries of the generated surface.

An approximate distance between control points. Smaller number results in a more accurate surface but it also takes more time to calculate.

A NURBS surface generated from control pointes at the topography heights.

• The code is developed and tested in Rhino 7
• The code is written in Grasshopper default Python component.
• The current version calculates the surface points' height based on a weighted average of its distance to the topography curves. This results in a linear change in height. Probebly a non-linear formula would fill the gaps more naturally but that's for another day.

https://vimeo.com/909340113?share=copy