Contour lines on site model

Hi All,

I am quote new to Rhino and grasshopper so i wa looking for some advice. I have this topography from a site i am working on. I am trying to create a surface mesh thing so i can 3d print it. But when I use the patch command it ends up looking like this.

Which of course isnt what im aiming for haha. Does anyone have any advise on how to fix this for ference this is my site. Its called Cromwell Castle on the Isles of Scilly. I have attached the Rhino file too.

SITe 3D PRINT.3dm (9.9 MB)

A screenshot before the patch

Hi @Viya
I’d set up my curves something like this, and try @Holo’s neat little TerrainMesh plugin (which you can find in the PackageManager)


The result might still need cleanup, but at least it’s a place to start.

HTH, Jakob

Hi Jakob thank you so much for this my only issue it i need the topography to relate to the building so and the square of the building is lower than the cylinder tower. I managed to get a mesh made but my issue is this gap thats being created

I want it the be flat here i tried moving the points of the mesh but it just gets messy. Any ideas for this? I made this but using grasshopper and then the drape tool.

SITe 3D PRINT_P02.3dm (7.1 MB)

essentially i am trying to make it so this building isnt floating

Hi @Viya
I’d run Subdivide on the terrain to get more polys to work with. Turn on SoftTransform with a fitting radius and set subobject filters to faces. Then use Lasso in crossing mode to select the outline of the buildings and use SetPt to flatten them (and move them to fit the underside of the buildings).


-Jakob