an that HashCodes well ... since they are "unique" per item (even if this - for the one reason or the other - is created at the same location with that) I barely can see how one can use them in order to get rid if "equal" items (Lines in this occasion).
On the other hand ... well ... using HashSets sampling the Line center and testing length and direction ... well ... this works but why bother? > if you are not doing business with code (thus you need this "check" internally) > use the Kangaroo1 component.
That said the topic of "equality" is rather huge and most people are confusing a lot of things on that matter: for instance a point not equal to another ... well ... that's rather simple but a brep "not equal" with some else ... this is not that easy (if it's solvable).…
ct rotate by 360 degrees,
the fourth object rotate by 270 degrees,
the fiveth....
all objects rotate with multiples of 90 degrees at random sequence..
Can you help me?
Thanks a lot
…
see in my bottom post image there is only one isocurve showing in U and V.
In Grasshopper there's no surface rebuild? Well, the same old Grasshopper Patch command will let you specify spans I guess, to make a surface from a planar curve, but it won't work for things with holes since they will just fill in!
You can recreate a surface painfully by untrimming, adding many UV points, rebuilding from those points, then retrimming with the original surface info, but the retrimming simply fails.
If you make a planar surface from a curve in Rhino, you end up with utterly no point editability:
No wonder my CreatePatch tests were a failure. The starting surface could not be distorted except in the extreme case of moving four corner points!
I have no idea how to successfully rebuild a surface akin to the Rhino rebuild command. It's great to be able to prototype in Grasshopper, but with Python I can rebuild easily ( http://4.rhino3d.com/5/rhinocommon/?topic=html/M_Rhino_Geometry_Surface_Rebuild.htm ;), so I guess I should start a collection, like peter, of little script components for prototyping with.…
Added by Nik Willmore at 6:18am on February 26, 2016
vided with U and V into line segments (i'd prefer to use that method instead of rectangular grid). These segments in U direction would then be rotated around V lines segments with min value of 0 and max value of 90 degrees, according to attractor (i'd like it to be image sampler in the end but for now im trying with point/multiple points). These lines would then be lofted
I post the definition below
Here are my problems (i marked them in definition):
1)i managed to get U direction line in every second row, i dont know how to get the lines between the rest (i tried shifting list, but didnt manage to get the right result).
2)Harder part - id like to measure distance between attractor point and a bottom point of lines. Than i would like to transfer it to rotation this way (distances used just as example): distance 0-20 - angle of rotation 0degrees; distance 20-30 - angle of rotation 1-90 degrees. I have no idea how to transfer it into definition. I also have problems remapping numbers to 0-90 value.
3)I'd like to do that later but i'd also like to use black-white image sampler as white - 0 angle of rotation, black - 90 degrees. I never experimented with image sampler and would be grateful for some advice how transfer colors into degree values.
I politely ask you to help me (especially with first two points i mentioned). I'm not asking for a ready definition - I would like to understand where my mistakes are.
Below i post a picture of something simmilar (although im trying to rotate it by edge, not by center line)
Pardon my english, thank you for your time and help.
Enjoy your weekend.…
ectural context.
We will work with 5 projects that meet the conditions to be re-thinked nowadays in parametrical terms. { FOA : World Trade Center / MAD OFFICE : 800M Tower / TOYO ITO : Relaxation Park / FOSTER & PARTNERS : Gherkin Tower / FREE : Soumaya Museum }
We will produce dynamic objects defined by parameters and modified in realtime.
We will learn to discretize, facet and panel in a non homogeneous way.
We will work with restrictions to determine our shapes, obtaining unpredictable results.
And we will take the control of what we produce : by measuring , visualizing and optimizing our parametric forms.
2 Groups / 30 students max :
Thursdays : 25 Apr ,02 ,09 ,16 & 23 May
Saturdays : 27 Apr ,04 ,11, 18 & 25 May
Fee : 73 € / student…
Added by Carlos Bañón at 10:26am on April 18, 2013
the most advanced surfacing commands. In addition, you'll learn concepts and features of Grasshopper at an accelerated pace in an instructor-led hands-on instruction environment. The advantages of using Grasshopper in preliminary design and concept development come to life since the students will be able to create their models on a 3D printer and a laser machine.
…
nd it was revolutionary at that time (3rails and then 4 rails and no naked edges whatsoever, and it could Boolean 1000 stones in less than 2 seconds!) I made my living and an office at Madison Avenue because of it and it is still not understood because of its simplicity and lack of sophisticated tools, but the power is all behind the veil.
Now I'm totally in Rhino due to its evolution and conformity in the industry and....GH of course.
Just after getting SolidThinking (an Italian monster used by Bulgary, Cartier, Nike etc.) I saw for the first time the components of Explicit History (GH original name) and I knew it was going to be the one.
So more money out of the window (or I should say "out of Windows XP")
I worked at the bench for almost 30 and this has been my way out and an adventure that is ever expanding.
I started with GH by making settings and connectors. Then Shanks, bands.
I used it for repetitive simple work while exploring what the advanced users were doing with it.
(I am running out of characters) next message.…
is actually the different or "extra" in this profile, which is the problematic areas. (one area is exemplified with red arrows, - but it is the different as such). The offset seems to be made in 90 degrees and of course it will cross the surfaces...
I would like the object only to be shelled inside. I need a thickness to make a 3d artefact by 3d printing (which will be a container). If you suggest another approach it is just fine. If it can be done with offset I need it to executed as a solid shell.
If the "mesh thicken" tool is used it could be great if it just made it thick in one direction - inside, but it makes it at both sides of the surface..also if you work with negative numbers...
Hope you have an idea. Thanks anyway for your time and reply!
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rve forming the letter and not the surface as a whole. Then you need to extrude those closed section curves along a rail curve that originates from those respective centroids. If you're going to turn the curve through 90 deg. and maintain the proportionate lengths of the 'legs' of the curve on each side of the fillet you'll find the intersection points or 'kink' location in the bisecting plane (in this case at -45 deg) of the two 'legs'. The other thing to remember about the sweep components is that the rail curve has a start and an end (even if it's periodic) and it makes no sense to have the section curve located at the end of the rail curve. The rail has to lie ahead of the section curve just like the destination has to be ahead of the train otherwise 'you're already there.'
I can't tell you anything about how the sweep component in Rhino differs from the one in GH. Best solution for now is to just post examples where a problem exists. Usually a system for handling the type of work you want to do will develop.…
Added by Chris Tietjen at 7:25pm on February 1, 2012