points within the bounds of the site boundary and use each location as an attractor point controlling a variable at each point in the grid (radius of a circle/height of a cube/colour based on a gradient etc.).This would be based on proximity to the attractor points with the effect of each attractor point essentially scaled by the percentage associated with it. For example a location with 88% visitor rates would have a more dramatic effect than a location with 26% visitor rates.
I've had a bit of a play around but can't seem to get beyond the point of what is shown in basic point attractor tutorials online. I'm definitely a novice.
Here's how I figured it would be done:
1) Create a grid of source points within a boundary curve.
2) Select 18 pre-defined attractor points.
2) Measure the distance between the source points and the attractor points.
3) Invert this data so that variables increase with proximity rather than decrease.
4) Give each of the attractor points a strength value from 1-100% based on the visitor rates.
5) Use the scaled data to control a variable at each of the source points.
6) Create some way to control the drop-off rate of the effect from each point.
It is at step 3 that I get completely lost.
I hope my description is clear. Any help would be greatly appreciated,
Adam
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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.…
at 0.85m above the floor.
I copy paste from the Appendix E:Rights to Light of the book "Paul Littlefair, Site Layout Planning for Daylight and Sunlight, A good practice, BRE Press, p.60" which is the primary guide for evaluating the impact of new construction to the Rights to Light of the existing adjustment buildings:
"The accepted way of calculating the loss of light is to compute the sky factor at a series of points on the working plane. In dwellings, the working plane height is usually taken to be 0.85 m (two feet nine inches). The sky factor is the ratio of the illuminance directly received from a uniform sky at the point indoors, to the illuminance outdoors under an unobstructed hemisphere of this sky. No allowance is made for glass losses or light blocked by glazed bars and (usually) window frames; nor is reflected light included, either from interior surfaces or obstructions outside. Thus the sky factor is not the same as the CIE daylight factor (see Appendix C). The sky factor is often calculated using a Waldram diagram, but this is a different Waldram diagram to Figure B1 in Appendix B, which should not be used for this purpose."
Thought couldn't find the specific Waldram diagram for this case from the references, I assume contemporary analytical tools should exist to calculate it.
I used your Vertical Sky Component process and culled the mesh faces lower than 0.2% but I believe because of they type of the radiance analysis as you have explained it before (stochastic method) it doesn't create one continuous edge, as you can see in the attached image.
Thanks,
Dimitris…
of Space, 1984) and specified in (Turner A. , “Depthmap: A Program to Perform Visibility Graph Analysis, 2007), intuitively describe the difficulty of getting to other spaces from a certain space. In other words, the higher the entropy value, the more difficult it is to reach other spaces from that space and vice-versa. We compute the spatial entropy of the node as using the point depth set:
(11)
“The term is the maximum depth from vertex and is the frequency of point depth *d* from the vertex” (ibid). Technically, we compute it using the function below, which itself uses some outputs and by-products from previous calculations:
Algorithm 4: Entropy Computation
Given the graph (adjacency lists), Depths as List of List of integer, DepthMap as Dictionary of integer
Initialize Entropies as List(double)
For node as integer in range [0, |V|)
integer How_Many_of_D=0
double S_node=0
For depth as integer in range [1, Depths[node].Max()]
How_Many_of_D=DepthMap.Branch[(node,depth)].Count
double frequency= How_Many_of_D/|V|
S_node = S_node - frequency * Math.Log(frequency, 2)
Next
Entropies [node] = S_node
Next
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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.
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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
d like "Twist" and twist the box but I could not find a way to give my centroid to the first axis point (if only I could find the rhino command which gets objects ID or something!! so I made it more simple by making the square have another location!
polyline 10,-10,0 10,10,0 -10,10,0 -10,-10,0 10,-10,0 Enter '_SelLast ExtrudeCrv 50 enter '_SelNone '_SelPolySrf twist 0,0,0 0,0,25 90
and this is the result! This is cool! It's all the grasshopper squeezed in to a component with just a big difference! It bakes all the algorithm so it's just a new rhinoscript lol!! :D
It will be great if it had an output like geometry or Guids or maybe data! Great one Nathan :)
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