Irregular Surface to Solid Group

[Gaieus]

You can also use drape and Fredo's Curviloft to create that skirt.

First drape the perimeters of your terrain onto a flat plane:

Next select the topo above and the draped shape below

Set the curviloft settings

After some clean-up (and moving the ungrouped top and bottom surfaces inside the curvilofted group) you get a nice solid.

True that my topo has a rectangular outline here but it should work with any shape...

[pilou]

Another cool solution!
The Joint Push Pull by Fredo 6

Color by the fabulous Color by Z by Chris Fullmer!

[pbacot]

Using solid tools for terrain modification. Never thought of that.... Interesting idea.

[twestover]

Thank you all for the creative solutions! sdmitch's solution for any mesh worked great. These others have me loading up on additional plugins.

[pilou]

Can you share the Sdmitch solution ?

[Jean Lemire]

Hi folks.

I did that a while ago for someone who asked the same question. See this SU file for ideas.

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Box under topo.skp

[sdmitch]

@unknownuser said:

Can you share the Sdmitch solution ?

The version on my blog does not require a GE terrain patch.

[pilou]

Alas the Drape method (Thx Jean for the V6 don't work at any time without very big cleaning!
JPP vector yes!

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no_drap.skp

[Jean Lemire]

Hi Pilou, hi folks.

Try smoothing all the surface before draping to get only the contour instead of zillions of edges and faces.

Just ideas.

[pilou]

Zillions ?
I have 323 entities for the surface and less 80 segments as perimeter!

But Ok with Smooth at the maximum I obtain just one edge alone to close by hand
(not a big deal - the only difficulty is to find it! )

But this will be the same with a bigger surface more sinuous on the edges?
Here I have 2 big straigth lines edges with only 2 arc circles toward inner!

If I have 100 edges to close ?

And after with your method i must make several intersections (just one Push Pull for natural intersection is not sufficient (but not a big deal again

[pbacot]

Another way.

I also thought there was no need to act on all the faces. Here is a complex model. Skirt made with TIG's extrude-edges-by-vector-to-object EEbyVTO. Only problem I have trouble getting all the edges to go all the way to the face (I wonder if there's a lack of technique on my part). So I then pull the face up and intersect with model. (This method seems to choke on an even more complex model, but it might work.)

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