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UI location  Node Editor > Custom nodes > Add nodes  

Version  0.2.7  Author(s)  Alexander Nedovzin, Nikita Gorodetskiy, Agustin Jimenez, Linus Yng, Dealga McArdle 
Blender  2.69  License  GPL3 
File name  __init__.py 

Current version download  http://github.com/nortikin/sverchok 
Data  20140112 
Links  Bugs & ChangeLog: http://www.blenderartists.org/forum/showthread.php?272679AddonWIPSverchokparametrictoolforarchitects, homesite: http://nikitron.cc.ua/sverchok.html 

What is Sverchok
 Sverchok IS a tool for generating parametric geometry. We plan on supporting these features until version 2.0.
 Sverchok IS NOT a complete nodebased redesign of Blender's UI. It does not support node based particles, lighting etc.
 Sverchok does not incorporate elements of pynodes' framework spector, because we are focused on a different aim  generating geometry. We are interested in developing Sverchok to work cooperatively with other node systems such as Lukas Toene's node based particle systems.
 Main developing line: MATH + MESH + SPLINES + NURBS.
Screenshots
Sverchok is a tool that allows you to generate parametric and procedural forms and geometry with nodes, without having to know any programming or scripting languages.
 


I don't know why these gif images animations do not fit to the thumbnails. They are just fullsized
How to Use
Installation
Install the addon by opening User Preferences and selecting "Install from file..." in the Addons tab. Check the checkbox on the right.
Blendersushi posts about sverchok
 sverchokgettoknow
 sverchokconnectingdots
 sverchokrandomandmasklist
 sverchokwhenpythonplayswithcricket
 sverchokseeingmatrix
 sverchokproceduralflowerandleaf
 sverchokrevisitingproceduralstacking
 sverchokbasicofproceduralcity
 sverchokinbetweenblends
 sverchoksweepswipeswoop
 sverchokembracingartofparametric
 sverchokparametricsnippets1
 Sverchok  parametric design study of ball
 Sverchok  parametric snippets 2
 Sverchok  in between strands of threads
 Sverchok  procedural city wip
 Sverchok  parametric snippets 3
 Sverchok  parametric snippets 4
 Sverchok  parametric snippets 5
 Sverchok  basic of semi procedural
 Sverchok  flower and snake (+18)
 Sverchok  parametric snippets 6
 Sverchok  parametric snippets 7
Уроки на русском языке! === Lessons in Russian!
 Установка сверчка
 Путь сверчка
 Структура данных сверчка
 Карточки новых узлов (до 2014 года)
 Соединение объектов сверчок старый метод
 Стадион имени В.И.Ленина в сверчке, первая генеративная модель
 Материализация объектов, столы сделаны в сверчке
 Узел пользовательский. Программирование в песочнице сверчка, смогут все.
 Соединение вершин, поверхности и простая интерполяция.
Data structure and sockets (slots on nodes)
FOR DETAILED INSTRUCTIONS ON DATA LOOK HERE: Data structure of sverchok
Sverchok has specific data structure:
What is data in Sverchok: [[(x0,y0,z0),(x1,y1,z1),(x2,y2,z2)][... ]...] that is how it looks 0,1,2,3 0 [ ] socket's container list  essential 1 [object 0 ][object 1]... object, matrix, as one list, as many objects so many lists here 2 (vert 0 ),(vert 1 ),(vert 2 ) (... ) lists 3 x0,y0,z0 x1,y1,z1 x2,y2,z2 integers, floats
Sockets are:
 Vertices socket represent vectors, that define mesh (vertices are vectors and vice versa):
Vertices tree: [[(x,y,z)]] 0 [ object,... ] 1 obect = [ v... ] 2 v = (x,y,z) 3 x,y,z = float,float,float
 Edges/Polygons/Data socket. cat transfer any data, simply used for create lists, floats, and used as lists of edges and polygons. in viewer it define itself, which kind of data you connect, if in list two elements  it is edges (connect integers), if in list more than two  it is polygons and automatically it draws polygons in 3d view or bake it to blender object with mesh.
Edges/polygons tree: [[(n...)]] 0 [ object ] 1 object = [pol...] 2 pol = [n,n,n,n,n] 3 n = integer
 Matrixes consists of 4 lines at 4 floats, it defines rotation, scale, translation. It is mathimatically usefull to operate with matrixes. Only one matrix for one object. To draw several objects with the same mesh, you have to connect several matrixes, each of it defines object's location, rotation, scale.
Matrixes tree: [[(x,y,z,w)]] 0 [ matrix ] 1 matrix = (a,b,c,d) 2 a,b,c,d = (x,y,z,w)... 3 x,y,z,w = float
Nikitron 17:59, 22 April 2014 (CEST)
Nodes
Basic
 Objects in  take data from object
 Bake all  bakes all geometry on fly  under development
 Viewer draw  draw data in OpenGL and bakes viewed object
 Viewer text  show data in "text editor" in "Sverchok text" file
 Viewer INDX  show vertices indeces in 3D. lesson howto index
 Tools  update all nodes, help, home site, feedback
 Wifi in  node to take sockets' values without wires on layout. Needed personal naming in special field to be the same as in output wifi. Work in pare.
 Wifi out  node to give sockets' values without wires on layout. Needed personal naming in special field to be the same as in input wifi. Work in pare.
 Text in  takes data from text file. Lesson_1, lesson_2
 Text out  makes data writed to text in some format  cvs, sverchok or other type. Than you can export it to some format
 Frame info  takes current frame, start, end frames
 Note  lets you leave notes on layout note node showed
Nikitron 17:59, 22 April 2014 (CEST)
List
 List Levels  leave selected levels and delete other levels of nasted lists
 List Join  joins some lists in many ways
 List Zip  join several objects from one socket, but can join lists
 List Shift  shift items to some value usefull in polygons definition
 List Reverse  make list 1,2,3,4,5,6 reversed as 6,5,4,3,2,1
 List Length  length of selected list level
 List Sum  Sum of all items in list (floats and int)
 List First&Last  get first and last item in list on selected data level
 List Item  pick item
 List Repeater  repeat some userdefined level's list some userdefined times
 List Math  operates with lists  takes maximum value, minimum value and avarage value
 List Flip  flip some level of list that row becomes column and vise versa
 List Mask  mask by another boolean list
 List Sort  sort list
 List Shuffle  randomise list
 List Match  making one list match in length for another and vice versa. One ca be shorten, cycled prolonged or repeated prolonged in different levels
 Socket convert  temporery solution till we have adaptive sockets universal
Nikitron 17:59, 22 April 2014 (CEST)
Number
 Series  makes range of floats
 Range  the same, but diapason devided by division's count
 List input  creates list from exact values as many as needed
 Random  makes so many rendom floats as you tell him. Random from 0 to 1
 Float  make float value
 Int  make integer value
 Float 2 Int  make integer from float
 Formula  calculate values by some expressions defined by user (+, , /, *, min, max, sin, cos, etc.)
 Math  math functions in one node
 Formula2  support vector*vector, define hierarhy and calculate respectfully to it. Supporting additionally to formula:
acos() acosh() asin() asinh() atan() atan2() atanh() ceil() copysign() cos() cosh() degrees() e erf() erfc() exp() expm1() fabs() factorial() floor() fmod() frexp() fsum() gamma() hypot() isfinite() isinf() isnan() ldexp() lgamma() log() log10() log1p() log2() modf() pi pow() radians() sin() sinh() sqrt() tan() tanh() trunc() == != <, > for, in, if, else []
and output to vector. Moreover, you can define lists with formula, i.e. 0,1,2,3,4,5 for series or (1,2,3),(1,2,3) for vertices Nikitron 17:59, 22 April 2014 (CEST)
Generators
 Line  fully makes line  vertices and edges, can take series of steps
 Plane  fully makes plane grid with steps and number of dots, as line do
 Box  could be subdivided on X,Y,Z
 Cyrcle  could be segmented or chorded
 Cylinder  subdivisions in height
 Sphere  usual Sphere
 Hilbert  Гильбертово пространство, квадрат всегда
 Hilbert Image  hilbert from image
 Voronoi  makes voronoi 2D field from vectors
 Image  mesh defined by image
 Random Vector  makes unit normal vectors in random values
 Scripted Node  you making script and node appears. details lesson how to make your custom script, lesson how to bind your script to script node
 Here are the current implementation rules for nodeloadable scripts for Scripted Node:
 We have simplifyed syntax  no need if than wxpression with {0}... See templates
 the main working function must be called sv_main
 function def must have input variables and defaults. It could be def sv_main(veriable=12) for integers/floats defaults or def sv_main(veriable=[]) for lists and series of floats/integers
 must have in_sockets and out_sockets , as shown in examples and return them
 you can create three types of in/out sockets:
 'v'  Vectors socket
 's'  edges/polygons/numbers/else socket
 'm'  matrices socket
 it looks like:
 in_sockets = [
 ['s', 'Vertices', data],
 ['s', 'Step', step],
 ]
 you can define def sv_main(**your_veriables_here**): and press CTRL+I in text area to automake veriables in in_sockets list. All for your convenient.
 Please, use templates in node (popup and button)
Nikitron 23:48, 3 May 2014 (CEST)
Vectors
Vector  is list of three floats (x,y,z), defining 3D situation of one dot
Matrix  here you can find links to educate what is matrix  is three vectors responsible for Location, Scale, Rotation. We define that or change or multiply.
 Vector in  make Vector
 Vector out  destruct vector to XYZ
 Vector normal  gives normal of vector from polygoons and vertices
 Vector Move  moves vectors to another verctors
 Vector Math  Basic Vector functions in one node. Add, Sub, Normal, Distance, Projection, Cross Product, etc
 Matrix apply  apply matrix (locatin, rotation, scale) to vertices, similar to ctrl+A in blender
 Vector Drop  makes polygons turned to floor, as they lay on floor. usefull for farthere usage in bezier curve 2D operations and making easy DWG layout to plot or something else. Here we have usage of Vector Drop
 Vector X Doubles  remove doubled vertices (twiced node with other in modifiers  need to be removed doubled itself. that irony)
 Vector Evaluate  find points from one point to other  can have minus values and more than 1
 Vertices Sort  sorting vertices at one direction or another
 Matrix Apply  apply Tra/Rot/Sca values to vertices as alt+A
 Matrix in  generate matrix
 Matrix out  destroy matrix to location and scale
 Matrix Deform  define scale, rotate or translate matrixes. It is able to rotate matrix with two vectors: Put initial vector to Rotation Axis vector socket and second to Angle. It will rotate on difference between angles RotAng. It is showed in Spider example file on official site's examples.
 Shear Matrix  makes matrix to shear as shift up to one side, bottom to another, for example lesson how to shear
 Matrix interpolation  defines "mutations" for middledeformed matrixes.
Modifier
 Centers Polygons  find polygon's centers
 Adaptive polygons  makes donor object spreads on recipient object adaptively to each polygon's corners. Donor has to be square on base, and base square has to locate on local zero Zaxis. Lesson how to adaptive polygons
 Adaptive Edges  replace some edge of recipient with donor's edges.
 Cross Section old  makes section between object and plane. Plane  it is matrix' XY plane, so many matrixes makes many sections
 Bisect new  makes crossection with more functions and quicker Here we have how to bisect (cross section)
 Solidify  makes mesh extruded
 Wireframe  makes wireframed mesh
 Line Connection  by edges/polygons (not fully ended) Lesson how to line connection
 Delanuary 2D  makes polygons from vectors
 Voronoi  makes voronoi edged mesh in floor, 2D frm defined points
 Polygon Boom  separates polygons to objects and dropping them to zero point  here we have polygon boom usage
 Polygons to Edges  converts polygons to edges Lesson how to polygon to edge
 Mesh Join  join several meshes with preserve of vertex indexes in polygons/edges
 Mesh Remove Doubles  removes doubled vercites and polygons and edges
 Delete Loose  deleting free vertices left from edges/pols, that use some vertices
 Convex Hull  as Delaunay node makes triangles on vertices, but in 3D
 Intersect edges  finding intersections of edges
Analiser
 Distances  find distances between matrixes or vertices
 Area  area of polygons and theyr's sum
 KDTree vertices  finding closest point to other points list
 KDTree edges  creating edges based on distance between vertices