Tree. Maker Robert J. Lang Origami. Background. Welcome To Ponyville Game Act 1'>Welcome To Ponyville Game Act 1. In 1. 98. 9, I wrote an article for the magazine Engineering Science about the state of technical folding, which, even then, seemed to be progressing by leaps and bounds due to an infusion of scientific and mathematical principles. In recounting some of the connections between origami, math, and technology, I wrote. Computing succumbed to the appeal of folded paper when, in 1. Arthur Appel programmed an IBM System 3. Ninety percent were considered unsuccessful, but it raises an interesting question could a computer someday design a model deemed superior to that designed by manSince so much of the process of design is geometric, the prospect is not as outrageous as it may seem. A screen shot of the design screen for a scorpion using Tree. Maker 4. The light blue lines define the tree the desired lengths are entered as numerical values. The ensuing decade saw this speculation turned into reality and no one was more surprised than me Within the next few years, the powerful design techniques of circle river packing had been discovered and systematized by multiple folders, including myself, Toshiyuki Meguro in Japan, and others. Contents. What is software Of software and sorcery. Is interaction design the cure for frustrating software, or the disease itself What is software design As one of the states largest community colleges, Gaston College promotes lifelong learning and economic development by providing high quality educational programs. Fundus Photography Overview. Excerpted from Ophthalmic Photography Retinal Photography, Angiography, and Electronic Imaging, 2 nd Edition Patrick J. Saine and. Building on these concepts, I set out in the early 1. Id speculated on in my E S article write a computer program that could design a non trivial origami figure based on a description of the number, lengths, and connectedness of the flaps. After several months of work I had succeeded and the result, was a computer program, which I dubbed Tree. Maker, since it started with a particular type of stick figure called a tree in graph theory. Initially, Tree. Maker was little more than a mathematical curiosity and a tool for exploring the mathematical theory of how to design a base. The first version did little more than solve the associated circle packing problem, but gave no clue as to how to fill in the bulk of the creases. AnyLogic is the leading simulation software for business applications, utilized worldwide by over 40 of Fortune 100 companies. AnyLogic models enable analysts. Over the years, as my understanding of crease patterns grew, I added what knowledge I gained to Tree. Maker, adding algorithms for computing molecules, imposing symmetries, and introducing strain into the stick figure, releasing new versions every few years. By 1. 99. 8, I had finished version 4. Tree. Maker, which, in addition to including many algorithms for the origami design, incorporated a powerful numerical optimization code, CFSQP developed by Professor Andre Tits and his students at the University of Maryland the code is now licensed and maintained by AEM Design this made it run very fast. And suddenly, Tree. TR96-26.pdf?file=thumbnail' alt='Academic Theory Of Software Design' title='Academic Theory Of Software Design' />Maker was no longer an academic curiosity it had become a powerful tool, capable of constructing the full crease pattern for a wide variety of origami bases. A screen shot of the computed crease pattern for a scorpion using Tree. Maker 4. Circles corresponding to leaf nodes terminal flaps are shown to aid intuition. In fact, version 4 of Tree. Maker could solve for crease patterns that I couldnt construct by any other way by which I mean, using pencil and paper. I and at this writing, most other composers of technical origami have usually designed myour compositions on paper using the geometric concepts collectively described as circleriver packing. Those concepts are described in my book, Origami Design Secrets see its page for details. No computer is needed for this type of design one simply sketches circles and the crease patterns known as molecules, constructs the crease pattern, and folds away. Occasionally a bit of algebra is needed to work out an initial reference point or two see Reference. Finder for more on this. Tree. Maker allows one to set up quite elaborate relationships between flaps, their lengths, and their angles far more complex relationships than are possible using pencil and paper origami design. Which meant that it was now possible, with Tree. Maker, to solve for origami bases that truly were more complicated than anything a person could design by hand. The flip side of this power is these complex crease patterns are extremely difficult to fold. Since all youre given is the crease pattern, its up to you to devise a step by step folding sequence for all the creases, and the subsequent assembly into a base can also be fiendishly difficult. Istar 1 5 5 Serial Number. But the value of Tree. Maker is that it combines novelty with efficiency the patterns constructed are commonly the most efficient solutions possible for a given stick figure, and they are just as often totally new structures in the world of origami. The folded base, and a finished model folded from this base. See here for a photograph of. And that opens up another question if you are an origami composer or wish to be, do you need to use Tree. Maker The answer is absolutely not. The vast majority of the worlds composers of technical origami dont use it in fact, I dont use it for the majority of my own designs. What I do use it for is for what you might call rapid prototyping quickly examining 3 or 4 or 5 or 1. For that purpose, its an invaluable tool in my arsenal. And for several of my designs, notably the. Scorpion varileg, opus 3. White Tailed Deer, opus 5. Maine Lobster, opus. Fifa 14 Setup For Pc. Description. Tree. Maker is a program for the design of origami bases. You draw a stick figure of the base on the screen each stick in the stick figure the tree will be represented by a flap on the base. You can also place various constraints on the flaps, forcing them to be corner, edge, or middle flaps, andor setting up various symmetry relationships forcing pairs of flaps to be symmetric about a line of symmetry of the paper, for example. Once you have defined the tree, Tree. Maker computes the full crease pattern for a base which, when folded, will have a projection roughly speaking, its shadow equivalent to that specified by the defining tree. The crease pattern can be printed out, or copied and pasted into another graphics program for further processing. Crease assignment mountain or valley are not computed, but with a few simple rules and some exploration by hand, the proper crease assignment can usually easily be found. The Genesis of Tree. Maker 5. In recent years, Ive had the pleasure of working with Professor Erik Demaine and Martin L. Demaine at MIT on various aspects of the mathematical theory of origami. One problem we have attacked has been the challenge of computing the full crease pattern for a Tree. Maker base, and the related and much harder problem of proving that the algorithms of tree theory always give a correct solution i. In my initial development of tree theory, I had found early versions of Tree. Maker to be an invaluable tool for testing and exploring mathematical concepts, and so in 2. I set out to update Tree. Maker to use in this further exploration. The crease assignment problem is deceptively challenging, because we can identify most of the creases by simple inspection. All ridge creases are valley creases. All gusset creases are mountain creases. Most axial creases are mountain creases. The problem is, we dont know which of the axial creases are mountain and which are valley. And the last family of crease hinge creases were completely unspecified. Fortunately, one could almost always find the crease assignment very quickly by experimenting by folding the pattern produced by Tree. Maker 4, but it was an annoying lingering hole in the theory that I desperately wanted to plug. Although it turned out to be far more complicated than Id originally imagined, by late 2.