per space. In the upper right corner you draw another dot, and you write "1, 1" next to it. You now have 2 points defined in paper space (uv space).
Ok, lay down the pencil and pick up the paper. You'll notice that the two points have just moved through world-space. They were very close to the desk, but now they are hovering above it. The coordinates you wrote down on the paper or the other hand are still valid.
No matter what you do to this piece of paper; crumple it, fold it, take it on a plane to South Africa, those two points remain fixed in paper space.
A surface is always a rectangle in Rhino. It may be deformed, it may have holes cut into it, but in the end it's always a rectangle, just like your piece of paper. UV coordinates are points that are defined in Surface UV space. They consist of only two numbers, because a surface has no thickness. At any point in time, you can translate these UV points into World XYZ points using what is called a surface evaluator. Where these XYZ points end up depends entirely on the *shape*, *size* and *location* of the surface.
----
Surface uv-space (and Curve t-space) are vital when dealing with nurbs geometry. If you do not understand the concept of parameter space, you will have a lot of problems because many components in Grasshopper use these coordinates.
--
David Rutten
david@mcneel.com
Seattle, WA…
Added by David Rutten at 6:40pm on September 27, 2009
, and made the below definition to try it out. (lots of components to draw a line, but I'm just trying to understand the equation)
I had been searching for advice on some geometry topics worth exploring for a class, and now I'm in the class and the teacher wants me to start by learning about splines in general (not nurbs). I just spent the day learning linear spline interpolation, then quadratic, then cubic. I didn't try working them by hand yet, but I'm getting the concepts. It seems cubic is the lowest degree where you can get C2 continuity, which makes it smooth. I read over parameterization and how that simplifies the number of equations. I read about space curves, and then the differences between Hermite, Catmull-Rom, and Cardinal spline, but then got tired and had a cocktail.
So I guess I'm looking for any direction or advice on how to understand parametric curves in 3d space, and how they can be defined (splines or otherwise). Thanks!!!
…
creating the structural frame, finding the endpoints, linking these endpoints with curves and afterwards lofting the surfaces between the curves.
The results were quite nice, however, the procedure is very time consuming and inefficient. There is just too much copy-pasting involved.
(see attached file: "Old Attempts.zip" )
Mesh relaxation:
I have later on used Daniel Piker's tutorials on Mesh Relaxation and realized that this might be the way to go.
The link to these online tutorials on wewanttolearn.net is:
https://wewanttolearn.wordpress.com/2011/10/22/mesh-relaxation-kangaroo-tutorial/
His tutorials, however, only deal with mesh boxes which are ideal cubes. He then joins them together in various directions, but it is under 90 degrees angle.
( see attached file: "Daniel Pikers Examples" )
What I would like to achieve:
I want my bridges to go in all directions and angles, not just under 90 degree angle.
Ideally I would like to make a square (polygon) follow a curve (which moves in all axis) at certain number of division points. I would then loft these squares into a mesh and use that shape as a mesh box. I would later use this mesh box and relax it the same way as Daniel Piker used the cubes in his tutorial. The anchor points are only the vertices of the squares which create the lofted mesh box.
( see attached file: "New Attempts" )
As you can see below this procedure works even if the curve is moving in all directions not only along xy axis. There are, however, many problems connected to it.
The problem:
Despite all the effort I cannot seem to come up with a design where I would be able to draw a random curve which would be the guideline for my mesh box and then apply this box to one definition in order to relax the mesh and create the shape that I want. Without this I am again forced into a lot of copy pasting as the final mesh box is made out of several sections.
Also is there any way I could make the final resulting mesh a bit smoother? Increasing the number of mesh faces is probably the only way, right?
Thank you guys so much for any potential help.
All best,
Luka
…
nd container id.Do you have the OpenFOAM container running?You can initiate OpenFOAM container by running start_OF.bat:C:\Program Files (x86)\ESI\OpenFOAM\1612\\Windows\Scripts\start_OF.bat
I have read other Issue problems such as #1 , #2 , #3 or OpenFoam Installation instructions but till now I couldn't run the simulation .. I figured out there is sth wrong with my openfoam installation where there should be a container called of-plusv1612-centos66 that openfoam must read it but it can not find it .. I checked with docker quickstart terminal as showed in pictures .. It could read the image but can not find the of-plusv1612 container ..
Do you have any suggestions?
P.S. I have opened all the possible files with or without administrator permissions but wasn't solved ..
Thanks …
erencing it back into our main .gh file works normally (with full functionality) as long as all the files are on my local hard drive (e.g. "C:"). But as soon as I try to reference a .ghcluster or even open one saved on an external drive (our company's network drive) Rhino and Grasshopper instantly freeze und crash. Every time. No matter the file size.
We have already checked, if maybe whitespaces or dots in the file's path could have caused the crashes. But even eliminating them by renaming the folders doesn't fix the problem.
So obviously GH's clusters does not support referencing files from external network locations. Does anyone have an idea why? Were stuck here, because we want to severely increase the complexity of our project's main gh. file and enable more team members to contribute to the main file via external referenced cluster files.
Thanks for your help.
BB…
rep' to type 'System.Collections.Generic.IEnumerable`1[Rhino.Geometry.Brep]'. (line: 86)
This basically translates to: "I wanted a collection of Breps and you've given me a single brep". You'll need to put your cone and boundingbox into a collection. Easiest is to make an inline array:
Dim result As Brep() = Brep.CreateBooleanIntersection( _
New Brep() {cone}, _
New Brep() {boundingbox}, _
0.001)
I concur it should probably work on individual breps as well, I'll add those overloads to RhinoCommon.
-----------------------------
Dim volume As Double = rhino.geometry.VolumeMassProperties.Compute(result(0))
This is wrong. VolumeMassProperties.Compute() does not return a single number. It returns a new instance of the VolumeMassProperties class, which contains the volume, but also the error, the centroids, the moments of inertia and so on and so forth.
Dim vp As VolumeMassProperties = VolumeMassProperties.Compute(result(0))
A = vp.Volume
--
David Rutten
david@mcneel.com
Poprad, Slovakia…
hopper) and High Definition visualizations (V-Ray) and exploring its scientific innovations supporting the users' platform philosophical ideas.
SESSIONS: 5 sessions of 8 hours (40 hours total)
E-MAIL: educacion@chconsultores.net
REGISTRATION: (55) 56 62 57 93
TECHNICAL INFO: 044 (55) 31 22 71 83
INSTRUCTORS: Have past experience working at Gehry Technologies, and participated at studios with Eric Owen Moss and Tom Wiscombe at SCI-Arc (Southern California Institute of Architecture).
Day 1: Introduction to MAYA tools, 3D exercise start.
Day 2: Continue 3D exercise.
Day 3: Original 3D architecture design.
Day 4: Grasshopper optional application on 3D architecture design.
Day 5: V-Ray Application on 3D architecture design.
30 DAY TRIAL SOFTWARE DOWNLOAD:MAYA 2012: http://www.autodesk.com/products/autodesk-maya/free-triaRHINO 4: http://s3.amazonaws.com/files.na.mcneel.com/rhino/4.0/2011-02-11/eval/rh40eval_en_20110211.exe3DS MAX 2010: http://www.autodesk.com/products/autodesk-3ds-max/free-trialVRAY FOR 3DS MAX: http://www.vray.com/vray_for_3ds_max/demo/thankyou.shtml#thankyouPHOTOSHOP e ILLUSTRATOR: https://creative.adobe.com/apps?trial=PHSP&promoid=JZXPS
www.helenico.edu.mx
www.scifi-architecture.com/#!workshops/c1wua
LIKE US ON: www.facebook.com/scifiarchitecture
…
greatly appreciate it!!
You can write the number of the question and write your answer next to it, example:
1) a
2) c
3) a) Washington University in St. Louis
4) 2 weeks (1week+1week shipping)
5) 130
6) b
7) b
The survey questions are as follows:
1)
Did you 3D print before?
5)
How much did it cost (in dollars)?
a.
Yes, for a school project
a.
Between 20 & 50
b.
Yes, for a personal project
b.
Between 50 & 80
c.
Between 80 & 120
2)
Print size
d.
Please specify if otherwise: _____ dollars
a.
Between 2 & 6 cubic inches
b.
Between 6 & 12 cubic inches
6)
Do you think the price was expensive?
c.
Between 12 & 20 cubic inches
a.
Not at all
d.
Please specify if otherwise: ____cubic inches
b.
A little bit expensive
c.
Very expensive
3)
Where did you print your object?
a.
School
7)
Were you satisfied with the printed object?
b.
Outside school: _________________
a.
Yes, it was a great print without problems
b.
Not bad, some issues
4)
How long did it take to print?
c.
I was not satisfied, very bad quality
a.
___ days
b.
___ weeks
Thank you very much to all!!
PS: If you did many 3D prints, you can post multiple answers.
Wassef…