algorithmic modeling for Rhino

Search Results - 内蒙古11选5前二直选技巧『8TBH·COM』排列五大乐透现场直播开奖记录2023年3月20日2时15分32秒.H5c2a3.kuyc42eky

Comment on: Topic 'How to generate bigger number of list': s to work. Anyway I only managed to calculate the number of combinations with 5 elements by dropping the results immediately. 1769539000 * 9 * 32 bit = 63.7GB…; Added by Thomas at 8:27am on September 7, 2014

Topic: Combining two trees: lues. What I want to do is combine them so that the structure would be something like: {4;0} {4;1} {4;2} {4;3} {5;0} {5;1} {5;2} {5;3} I tried the method here, but it didn't give me what I wanted, it was just tacking the new values onto the end, and not maintaining their paths. Any help would be appreciated. Thanks!…; Added by Dennis Goff at 8:13am on February 10, 2016

Comment on: Topic 'Point on curve newbie question...': point @ 20%, curve 3, point @ 40% and so on. If I change X, the percentage of each curve changes. This way, I will end up with a wave-like pattern in my array of curves. Upon your request, here is the code :)…; Added by Jeroen de Bruijn at 2:53pm on January 18, 2017

Topic: Data Tree or List of List C#: output will show a tree with 3 branches of 4 integers each that I can pass on to other components. What is the best way to do it? I have tried creating a tree and using a for loop to do so, but it didn't work. Thank you for your help. …; Added by Godjenka at 8:25pm on December 23, 2015

Topic: What are random seed values?: t, let's talk about randomness. Randomness is a problem in computing because digital computers are deterministic. If you give them the exact same instructions they always end up with the exact same result. It turns out to be mathematically impossible to generate true random numbers using a digital computer, but it is fairly easy to generate pseudo-random numbers. This is actually not bad news as pseudo-random numbers -unlike real random numbers- can be generated again and again and you'll end up with the same random numbers every time. Being able to get the same random numbers on demand increases the reliability of these number sequences which in turn makes them easier to use. Pseudo-random numbers are numbers that have certain characteristics. Note that when we talk about random numbers we are really talking about numbers. Plural. It's easy to generate only a single one, as xkcd so eloquently put it: So what are these characteristics that define pseudo-randomness? Without being actually correct, I can sum them up as follows: The sequence of generated numbers should never repeat itself* The numbers in the sequence ought to be spread evenly across the numeric domain** There are a lot of different algorithms out there, some better than others, some faster than others, some solving very specific problems while others are more generic. The generator used in Grasshopper is the standard Microsoft .NET Random, based on Donald Knuth's subtractive algorithm. So let's imagine we want random integers between 0 and 10. What would a bad random sequence look like? 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 (about as bad as it gets) 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 (not random at all) 1 3 2 5 3 9 1 2 4 2 5 1 1 2 8 1 5 2 3 4 (too many low numbers) 2 8 4 6 0 9 8 2 4 8 6 4 2 2 5 1 4 8 6 2 (too many even numbers) So what about good sequences? Well, here's a few: 6 9 1 2 0 4 2 8 5 7 2 9 1 9 2 5 3 1 9 2 (sure, why not) 6 2 5 3 4 1 9 7 8 0 2 1 6 4 5 8 9 5 0 9 (looks about right) 1 8 5 2 3 4 5 7 9 5 2 1 0 2 1 0 9 7 6 4 (I suppose) 9 0 6 4 8 3 1 5 2 7 6 1 4 6 0 1 9 7 5 6 (whatever) There are a lot of valid pseudo-random sequences. (Seriously, loads). So even if we have a good pseudo-random generator we may be given a random sequence that isn't entirely to our liking. The shorter the sequence we need, the more likely it is that statistical aberrations invalidate that particular sequence for us. What we need is some control over the generator so we don't just get a repeatable sequence, but a repeatable sequence we actually like. Enter seed values. The random generator requires a seed value before it can generate a random sequence. These seed values are always integers, and they can be any valid 32-bit integer. Every unique seed value results in the same sequence. Every time. Unfortunately there is no clear relationship between seeds and sequences. Changing the seed value from 5 to 6 will result in a completely difference random sequence, and two sequences that are very similar may well have to wildly different seeds. There is therefore no way to guess a good seed value, it is completely trial-and-error. Also because of this extremely discontinuous nature, you cannot use tools like Galapagos to optimize a seed value. If you are looking for a pseudo-random sequence which has custom characteristics, you may well end up having to write your own generator algorithm. Ask questions about this on the Grasshopper main forum or the VB/C# forum. Conclusion: Seed values are integers that define the exact sequence of pseudo-random numbers, but there's no way of knowing ahead of time what sequence it will be and there's no way of tweaking a sequence by slightly changing the seed. Even the tiniest change in seed value will result in a radically different random sequence. -- David Rutten david@mcneel.com Poprad, Slovakia * This is not actually possible. A finite amount of numbers always repeats itself eventually. ** This should only be true for long enough sequences, short sequences are allowed to cluster their values somewhat. Interesting links for further reading: Coding Horror: Computers are Louse Random Number Generators StackOverflow: When do random numbers start repeating?…; Added by David Rutten at 9:52am on October 20, 2012

Topic: color by angle for a land surface: to 10 = color 2 10 to 15 = color 3 15 to 30 = color 4 .... I divide the surface by number of segments. How can I divide the surface by distance between any help...…; Added by TonboNasake at 3:02am on March 4, 2015

Comment on: Topic 'number slider request': vid@mcneel.com Poprad, Slovakia…; Added by David Rutten at 4:31pm on February 14, 2013

Comment on: Topic 'Random reduce !': to buuleans 8) cull by pattern…; Added by Philipp at 6:26am on September 3, 2011

Event: Eugene Parametric Society #2 (Past Event): In this meeting we went through the second portion of Woo Jae's exercise and began exploring ways we could apply it to surfaces instead of just two lines. We are starting from the beginning.; Added by Eugene Parametric Society at 11:48am on October 8, 2009

Comment on: Topic 'Grasshopper 0.9.0051 available for download': Does It work with Rhino 64 bit? It works in my Rhino 5 32 bit, but I couldn't find it in my 64 bit.; Added by Agus Hariyadi at 12:22am on May 8, 2013