Generate a Landform

In this tutorial, we will generate the landform using image mapper to generate a landform from a DEM file.

Step One：

Set up a 1000 × 1000 plain surface in rhino, we will use this as an original surface.

Step Two：

Import the surface into grasshopper, use it to create a matrix of grid as the base for generating the surface.

Step Three：

This step is using the grids we created before as original points, move them according to the image sampler, use the new points to generate a mesh, which will be the starting point of the landform.

Step Four：

The last step we want to flip the landform because it is upside down. We rotate all points from the center point of the landform (use a bounding box to find the geometry center as a rotation axis).

Rhino File

https://www.dropbox.com/s/z6rw1wuxkslxs38/BaseFile.3dm?dl=0

Grasshopper File

https://www.dropbox.com/s/orlpaokm67ok7f4/1.Landform.gh?dl=0