How to transform Contours into a Rhino Surface

August 31 2017

[vicenteperezac]

the amount of times i've used this tutorial in the last year...thanks man

[kummer]

I followed the tutorial. It works wonders. After obtaining the surface I can trim and do anything with it even a tatami + cairo tessellation. These videos are outstanding resources for the student of architecture. Thank you so much for such gift.

[mariam-uyym]

Thanks this helped a lot! I was getting a little bit of a 'null points' error, but that was because the contours were not extending past a corner of my rectangular bounding box... after fixing this it worked just fine!

[TinisaPlus]

Just in case someone as newbie as me in Grasshopper runs into the same problem, baking at delaunay mesh didn't do anything at first. If I put the cursor over the 'baked' command, I would get an 'invalid mesh' text. I saw on a forum you need to check for duplicate points, so you have to use the Cull Duplicates command between Explode and Delaunay, attaching them by the letter P on both sides.

Thanks a lot, I'm really interested in GH now, this was only my first time.

[mduncan]

Intead of placing SUM component, you can right-click in U and add an expression in this case "x+1"

[woshizhentiao]

i have just watched another video which does the same thing but that script is way complicated then yours, I really like the simplicity and clarity of your way of scripting this

[mongolianepicmusics]

surface from points command doesn't work and error is "1. A point in the grid is null. Fitting operation aborted", what can i do now ?

[mrflyman]

I have both tried the tradititonal patch methord on my part but this method seems to be much more accurate because if you have very detailed contour lines, it gives you complete control where you dont have that option on the other method, thanks Sir!

[Flavio_R]

Hi Frank,
thanks for this tutorial, while I am trying to recreate your script I stumbled across an issue regarding the surface I create through the bounding box. Can I swap the rectangular bounding box with an irregular shape so that I can accommodate the shape of the mesh I came out with? thanks

[rutgeremmelkamp]

Hi, thanks for this crisp and clear instruction. My set of contours border the ocean where the information stops so I cannot draw a bounding box inside the contours as I would lose the coastline which for this project I really need. How do I go about this? Thanks, Rutger

[DrAvocdo]

my problem starts at the explosion command it doesnt divide each contour but instead divides all with a large grid and because of that it ignores my contour line and just creates large polygonshaped surfaces with relations to the heights

[michaelrandza]

Does this method work for a bounding box that is not a uniform polygon? The contours im attempting to use have a steep drop off, but are all comprised of closed curves. Im getting the null point error, but dont know if it is due to my bounding box being irregular even though it appears to be within all the contours

[paulamorales]

What happens if every contour line is 2ft? How do you change the depth of the contour?

[salahhesham]

Thanks frank you helped me so much Really thank I am speechless !! 😍❤️❤️

[raquibulhassan]

Are the contours line in the beginning are levelled up as the level height needs to be or are they in the same plane?

[reemezzat]

i have a problem in the last step, "The UCount value is not valid for this amount of points." this message appeared

[mrxhemalaj]

Many thanks for the tutorial! Could you kindly suggest how to build vectorial map elevation contours? I mean in any location on the Earth.

[DustinSmith-xlzm]

Best tutorial for contours to surfaces!

[Zaizai_jalin]

The last step, the bubble said there’s a null grid, how can I fix this?

[vn]

Great video, thank you!! Do you know how could you do the same with a bounding box with more than 4 corners? If I add a 5th or 6th point so that the bounding box is not a rectangle shape, the point list will show "null" in every index of the points. Is there a workaround for creating a more complex shaped surface with this method?