I created a topology map from GIS data and imported it into rhino 5.
I build a solid out of it (to end up with a stl file). What I need to do now
is to put a relaxation zone around to topology to end up with borders
that are on the same height on the east/west and south/north ends
of the topology. This should be done by using a spline …
I’m new to rhino, so is there a tutorial or a guide or someone out there
how could point me into the right direction to do this or provide me with
a link where I can see how this is done (maybe youtube or something)?
Thanks a lot!
Hi Thomas - I’m not picturing the situation very clearly- can you post an example file that shows what you’d like to do?
sorry for the delay … the holidays …
I uploaded a hand drawing of what I need to
do to my dropbox … have a look at this link
It is a pdf. I forgot to add to the text written on it that the terrain
stl 's lowest point could be at maybe z=400 and the plane below
the terrain needs to be located at that lowest point.
I would be happy to install additional tools (free) if I have to.
Thank you very much for your help!
Hi Thomas, if you can post an actual mesh file to work from there is more hope that I or someone can help…
here is a link to a STL file I am working with …
I hope this helps to clarify things a little more …
Thanks a lot!
Hi Thomas - probably not there yet but here is a first shot at what I think you might want, maybe…
Terrain1_PG.3dm (880.5 KB)
what exactly did you do to the file? I need the terrain in the end to
look like this
I just used “Drape” to throw a net (?) over it and then used “cap” to create a solid.
But I am loosing a lot of detail in that process. Anyway my result is Ok for now.
Is there a way to transfer the lower left corner of the “Drape” and “Cap” process EXACTLY to
x,y,z=(0.0, 0.0, 0.0) ? How is it done? A tutorial would be nice … any links maybe?
Thank a lot!!
Hi Thomas- does this get any closer?
Terrain2_PG.3dm (223.5 KB)
Terrain3_PG.3dm (384.0 KB)
that one look pretty neat! How did you do it?
Hi Thomas- ok, here we go - (for the second file, called terrain3, which I think is a little better and much simpler to make)
ExtractMeshPart. Select a starting polygon on the terrain part of the original mesh. This should isolate the terrain from the box part of the mesh. Hide or delete the box.
Patch on the mesh. I used 30 by 30 spans - that should be plenty if the terrain is relatively ‘soft’ as in your example.
Turn on points for the mesh and select all the outer points. Here is a macro that will do that if one surface point is selected:
SetRedrawOff _SelU _SelV
_NextU _NextU _NextV _NextV
Use SelConnected to select the next rows of points (or make a similar macro that selects two rows)
Use SetPt in Z only to set the level of these points.
Select the third row and Smooth in Z a number of times ro relax that area in Z.