Creating topography surface to export .STL file from XYZ .csv?

Hello All,

I am very new to Grasshopper and have traditionally used QGIS for creating topography but am trying to do it in Rhino. I have a list of xyz points in a .csv attached. I would like to interpolate a smooth surface based on these points. Any suggestions are greatly appreciated. I have tried the Delaunay Mesh but now need to smooth it and create a file in Rhino that can be exported as a .stl.

Thank you,

Anya

Attachments:

xyz_MealGapCUS.csv, 79 KB

Replies to This Discussion

Permalink Reply by Joseph Oster on November 15, 2017 at 7:06pm

I found a map of US counties here:

http://www.worldatlas.com/webimage/countrys/namerica/usstates/count...
http://www.worldatlas.com/webimage/countrys/namerica/usstates/count...

Converted it to .png, used its 'W/H ratio' instead (1.86277), baked a 'BBox' around the scaled points to use as a Rhino 'PictureFrame' reference, and it looks like this - not so bad:

Attachments:

Permalink Reply by Anya A'Hearn on November 24, 2017 at 8:35am

Hello Joseph,

Thank you again for all your help. I have been tying to turn this into a solid that goes from a z of 0 to the z's in the data (like your version b)0 and then export that as an STL? I was trying to use the bake selected menu option to get it "baked" into Rhino, to then export as an STL, but can't figure out how to get this to work. Any help is greatly appreciated.

Anya

Permalink Reply by Joseph Oster on November 24, 2017 at 8:55am

I disabled the 'Mesh' parameter in that dark gray group. Did you enable it before trying to bake?

Permalink Reply by Anya A'Hearn on November 15, 2017 at 6:39pm

I am reading up on importing shapefiles http://duspviz.mit.edu/tutorials/importing-gis-data-to-grasshopper/. so perhaps I can bring in the counties as a shape pay with the Z as a center point with Metric value.

Permalink Reply by Anya A'Hearn on November 24, 2017 at 9:43am

That did it! Thank you!