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diff --git a/externals/gridflow/doc/reference.xml b/externals/gridflow/doc/reference.xml new file mode 100644 index 00000000..339862d4 --- /dev/null +++ b/externals/gridflow/doc/reference.xml @@ -0,0 +1,1329 @@ +<?xml version="1.0" standalone="no" ?> +<!DOCTYPE documentation SYSTEM 'gridflow.dtd'> +<documentation title="Reference Manual: Flow Classes" indexcols="3"> +<!-- $Id: reference.xml 3897 2008-06-17 20:58:38Z alx1 $ --> +<!-- + GridFlow Reference Manual: Class Reference + Copyright (c) 2001-2007 + by Mathieu Bouchard and Alexandre Castonguay +--> + +<section name="Objects for making grids and breaking them down"> + + <class name="#to_float,#export"> + <p>this object is the opposite of #import.</p> + <method name="init"> + this object is not configurable because there isn't + anything that could possibly be configured here. + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(dims...)"/> + transforms this grid into a sequence of integer messages. + </method> + </inlet> + <outlet id="0"> + <method name="int"> + elements of the incoming grid. + </method> + </outlet> + </class> + + <class name="#to_list,#export_list"> + <p>this object is another opposite of <k>[#import]</k>, which puts + all of its values in a list.</p> + <method name="init" /> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(dims...)"/> + transforms this grid into a single message containing + a list of integers. + </method> + </inlet> + <outlet id="0"> + <method name="list"> + elements of the incoming grid. + </method> + </outlet> + </class> + + <class name="#to_symbol,#export_symbol"> + <p>this object is another opposite of #import, which constructs a symbol + from its input. The values are expected to be valid ASCII codes, but no check + will be performed for that, and additionally, no check will be made that the generated + symbol only contains characters that can be put in a symbol.</p> + <method name="init" /> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(dims...)"/> + transforms this grid into a single message containing + a list of integers. + </method> + </inlet> + <outlet id="0"><method name="symbol">generated symbol</method></outlet> + </class> + + <class name="#pack"> + <p>Similar to <k>[#join]</k>, but takes individual integers, and builds a Dim(N) vector out of it. + </p> + + <attr name="trigger_by" type="TriggerBy" default="any"> + The value "any" (and the only available value for now) causes an output + to produced when an integer is received thru any inlet, contrary to most + other object classes, that only act upon reception of a value thru inlet 0. + </attr> + + <method name="init"> + <arg name="inputs" type="integer">how many inlets the object should have.</arg> + </method> + <inlet id="*"><method name="int"/></inlet> + <outlet id="0"><method name="grid"> + combination of inputs given in all inlets. + this is produced according to the value of the trigger attribute. + </method></outlet> + </class> + + <class name="#color"> + <p>Triple slider for the selection of RGB values.</p> + <method name="init"> + <arg name="min" type="float"></arg> + <arg name="max" type="float"></arg> + <arg name="hidepreview" type="0,1"></arg> + </method> + <inlet id="0"><method name="grid"> + changes all three values (R,G,B). The grid must + be a Dim(3). + </method> + <method name="delegate"> + sends the rest of the message to each of the three sliders. + this relies on the fact that [#color] is implemented using + three [hsl] and this might not still work in the far future. + </method></inlet> + <outlet id="0"><method name="grid"> + Produces a Dim(3) grid of RGB values. + </method></outlet> + </class> + + <class name="#unpack"> + <method name="init"> + <arg name="outputs" type="integer"> + how many outlets the object should have. + (depending on the version of the software, the number of visible outlets + may have been frozen to 4. If it is so, then the value of this argument + must not exceed 4; and if it is below 4, then don't use the extraneous outlets.) + </arg> + </method> + <inlet id="0"><method name="grid(N)"> + the input vector is split in N parts containing one number each. + numbers are sent left-to-right, that is, outlet 0 is triggered first, then outlet 1, etc. + </method></inlet> + <outlet id="*"><method name="int"> + </method></outlet> + </class> + + <class name="#centroid"> + <method name="init"/> + <inlet id="0"><method name="grid(rows,columns,1)"> + will compute the centroid of the given grid, which + is a weighted average, namely, the average position weighted + by the pixel values. + </method></inlet> + <outlet id="0"> + <method name="grid(2)"> + result + </method> + </outlet> + </class> + + <class name="#for"> + <p>when given scalar bounds, works like a regular <k>[for]</k> object plugged + to a <k>[#import]</k> tuned for a Dim(size) where size is the number of values + produced by a bang to that <k>[for]</k>.</p> + + <p>when given vector bounds, will work like any number of [for] objects + producing all possible combinations of their values in the proper order. + This replaces the old <k>[#identity_transform]</k> object.</p> + + <method name="init"> + <arg name="from" type="integer"/> + <arg name="to" type="integer"/> + <arg name="step" type="integer"/> + </method> + <inlet id="0"><method name="grid"><arg name="grid" type="grid(index)"/> + replaces the "from" value and produces output. + </method></inlet> + <inlet id="1"><method name="grid"><arg name="grid" type="grid(index)"/> + replaces the "to" value. + </method></inlet> + <inlet id="2"><method name="grid"><arg name="grid" type="grid(index_steps)"/> + replaces the "step" value. + </method></inlet> + <outlet id="0"> + <method name="grid"><arg name="grid" type="grid(size)"/> + where size is floor((to-from+1)/step) + [for scalar bounds] + </method> + <method name="grid"><arg name="grid" type="grid(*size,dimension)"/> + where *size is floor((to-from+1)/step) + [for vector bounds] + </method> + </outlet> + </class> +</section> + +<section name="Objects for Computing"> + <class name="#"> + <attr name="op" type="grid"/> + <attr name="right_hand" type="grid" default="0"> + + </attr> + + <p>This object outputs a grid by computing "in parallel" a same + operation on each left-hand element with its corresponding right-hand + element. + </p> + + <method name="init"> + <arg name="op" isattr="yes"/> + <arg name="right_hand" isattr="yes"/> + </method> + + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(dims...)"/> + on each element of this grid, perform the operation + together with the corresponding element of inlet 1. + in the table of operators (at the top of this document) + elements of inlet 0 are called "A" and elements of inlet 1 + are called "B". the resulting grid is the same size as the + one in inlet 0. + </method> + </inlet> + <inlet id="1"> + <method name="grid"><arg name="grid" type="grid(dims...)"/> + any grid, preferably shaped like the one that will be put + in the left inlet, or like a subpart of it (anyway the contents + will be redim'ed on-the-fly to fit the grid of inlet-0, + but the stored grid will not be modified itself) + </method> + <method name="int"> + stores a single int in the right inlet; the same int will + be applied in all computations; this is like sending a + Dim(1) or Dim() grid with that number in it. + </method> + </inlet> + <outlet id="0"> + <method name="grid"><arg name="grid" type="grid"/> + </method> + </outlet> + + </class> + + <class name="@complex_sq"> + <p>this object computes the square of complex numbers. + If seeing imaginary as Y and real as X, then this operation squares + the distance of a point from origin and doubles the angle between it + and the +X half-axis clockwise. (fun, eh?) + </p> + <p>used on an indexmap, this makes each thing appear twice, + each apparition spanning half of the original angle.</p> + <inlet id="0"><method name="grid"> + <arg name="grid" type="grid(dims... {imaginary real})"/> + </method></inlet> + <outlet id="0"><method name="grid"> + <arg name="grid" type="grid(dims... {imaginary real})"/> + </method></outlet> + </class> + + <class name="#fold"> + <p><list> + <li><k>[#fold +]</k> computes totals</li> + <li><k>[#fold inv+]</k> is an alternated sum (+/-)</li> + <li><k>[#fold * 1]</k> can compute the size of a grid using its dimension list</li> + <li><k>[#fold & 1]</k> can mean "for all"</li> + <li><k>[#fold | 0]</k> can mean "there exists (at least one)"</li> + <li><k>[#fold ^ 0]</k> can mean "there exists an odd number of..."</li> + <li><k>[#fold ^ 1]</k> can mean "there exists an even number of...".</li> + </list></p> + + <method name="init"> + <arg name="operator" type="numop2"/> + <arg name="seed" type="grid" default="0"/> + <arg name="right_hand" type="grid"/> + </method> + + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(dims..., last)"/> + replaces every Dim(last) subgrid by the result of a cascade on that subgrid. + Doing that + with seed value 0 and operation + on grid "2 3 5 7" will compute + ((((0+2)+3)+5)+7) find the total "17". + produces a Dim(dims) grid. + </method> + </inlet> + <inlet id="1" attr="seed"/> + <outlet id="0"></outlet> + </class> + + <class name="#scan"> + <p><k>[#scan +]</k> computes subtotals; this can be used, for example, + to convert a regular probability distribution into a cumulative one. + (or in general, discrete integration) + </p> + + <method name="init"> + <arg name="operator" type="numop2"/> + <arg name="seed" type="grid" default="0"/> + </method> + + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(dims..., last)"/> + + replaces every Dim(last) subgrid by all the results of + cascading the operator on that subgrid, + producing a Dim(dims,last) grid. + + For example, with base value 0 and operation + on grid "2 3 5 + 7" will compute 0+2=2, 2+3=5, 5+5=10, 10+7=17, and give the + subtotals "2 5 10 17". + + </method> + </inlet> + <inlet id="1" attr="seed"/> + <outlet id="0"> + </outlet> + + </class> + + <class name="#outer"> + <method name="init"> + <arg name="operator" type="numop2"/> + <arg name="value" type="grid"/> + the operator must be picked from the table of two-input operators. + the grid is optional and corresponds to inlet 1. + </method> + + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(anyA...)"/></method> + produces a grid of size Dim(anyA..., anyB...), where numbers + are the results of the operation on every element of A and + every element of B. the resulting array can be very big. Don't + try this on two pictures (the result will have 6 dimensions) + </inlet> + <inlet id="1"> + <method name="grid"><arg name="grid" type="grid(anyB...)"/></method> + stores the specified grid, to be used when inlet 0 is activated. + </inlet> + <outlet id="0"> + </outlet> + + <p>When given a grid of Dim(3) and a grid of Dim(5) <k>[#outer]</k> will + produce a grid of Dim(3,5) with the selected two-input operation + applied on each of the possible pairs combinations between numbers + from the left grid and the ones from the right. for example : + (10,20,30) [#outer +] (1,2,3) will give : + ((11,12,13),(21,22,23),(31,32,33)) </p> + + </class> + + <class name="#inner"> + <p>think of this one as a special combination of <k>[#outer]</k>, <k>[#]</k> and + <k>[#fold]</k>. this is one of the most complex operations. It is very useful + for performing linear transforms like rotations, scalings, shearings, + and some kinds of color remappings. A linear transform is done by + something called matrix multiplication, which happens to be <k>[#inner * + + 0]</k>. <k>[#inner]</k> also does dot product and other funny operations.</p> + + <method name="init"> + <arg name="right_hand" type="grid"/> + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(anyA..., lastA)"/> + + Splits the Dim(anyA...,lastA) left-hand grid into Dim(anyA...) + pieces of Dim(lastA) size. + + Splits the Dim(firstB,anyB...) right-hand grid into + Dim(anyB...) pieces of Dim(firstB) size. + + On every piece pair, does <k>[#]</k> using the specified + op_para operation, followed by a <k>[#fold]</k> using + the specified op_fold operator and base value. + + creates a Dim(anyA...,anyB...) grid by assembling all + the results together. + + (note: lastA must be equal to firstB.) + </method> + <method name="op"><arg name="op" type="numop"/> + the operation that combines the values from the two grids together. + this defaults to "*" (as in the matrix product) + </method> + <method name="fold"><arg name="op" type="numop"/> + the operation that combines the result of the "op" operations together. + this defaults to "+" (as in the matrix product) + </method> + </inlet> + <inlet id="1"> + <method name="int"> + changes the base value to that. + </method> + </inlet> + <inlet id="2"> + <method name="grid"><arg name="grid" type="grid(anyB..., lastB)"/> + changes the right-hand side grid to that. + </method> + </inlet> + <outlet id="0"> + </outlet> + </class> + + <class name="@join"> + <method name="init"> + <arg name="which_dim"/> + Which_dim is the number of the dimension by which the join will + occur. For N-dimensional grids, the dimensions are numbered from 0 + to N-1. In addition, negative numbers from -N to -1 may be used, to + which N will be added. + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid"/> + The left grid and right grid must have the same number + of elements in all dimensions except the one specified. + The result will have the same number of elements in all + dimensions except the one specified, which will be the + sum of the two corresponding one. + + <p>For example, joining a RGB picture Dim[y,x,3] and a + greyscale picture Dim[y,x,1] on dimension 2 (or -1) could + make a RGBA picture Dim[y,x,4] in which the greyscale image + becomes the opacity channel. + </p> + </method> + </inlet> + <inlet id="1"><method name="grid"><arg name="grid" type="grid"/></method></inlet> + <outlet id="0"> + </outlet> + </class> + + <class name="#finished"> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid"/>any grid</method> + </inlet> + <outlet id="0"> + a bang is emitted every time a grid transmission ends. + </outlet> + </class> + + <class name="#cast"> + <method name="init"> + <arg name="numbertype" type="numbertype"/> + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid"/>any grid</method> + </inlet> + <outlet id="0"> + <method name="grid"><arg name="grid" type="grid"/>a grid of the same shape containing all the same + values after type conversion. note that while casting to + a smaller type, values that are overflowing will be truncated. + </method> + </outlet> + </class> + + <class name="#ravel"> + <inlet id="0"><method name="grid"><arg name="grid" type="grid"/>any grid</method></inlet> + <outlet id="0"><method name="grid"><arg name="grid" type="grid"/> + like <k>[#redim]</k> but always produce a 1-D grid + with the same total number of elements. + </method></outlet> + </class> + + <class name="#grade"> + <inlet id="0"><method name="grid"><arg name="grid" type="grid"/>any grid</method></inlet> + <outlet id="0"><method name="grid"><arg name="grid" type="grid"/> + <p>splits a Dim[A...,B] grid into Dim[B] vectors, + producing new Dim[B] vectors that each contain numbers from + 0 to B-1 indicating the ordering of the values. The result is + a Dim[A...,B] grid.</p> + <p>for example, connecting a [#grade] to a <k>[#outer ignore {0}]</k> + to a <k>[#store]</k> object, storing a single vector into <k>[#store]</k>, and + sending the same vector to <k>[#grade]</k>, will sort the values of the + vector. however for higher-dimensional grids, what should go + between <k>[#store]</k> and <k>[#grade]</k> to achieve the same result would + be more complex.</p> + <p>you may achieve different kinds of sorting by applying various + filters before <k>[#grade]</k>. the possibilities are unlimited.</p> + <p>if you plug <k>[#grade]</k> directly into another <k>[#grade]</k>, you will + get the inverse arrangement, which allows to take the sorted values + and make them unsorted in the original way. note that this is really + not the same as just listing the values backwards.</p> + </method></outlet> + </class> + + <class name="#perspective"> + <method name="init"> + <arg name="depth" type="integer"/> + </method> + <inlet id="0"><method name="grid"><arg name="grid" type="grid"/>any grid</method></inlet> + <outlet id="0"><method name="grid"><arg name="grid" type="grid"/> + <p>transforms a Dim[A...,B] grid into a Dim[A...,B-1] grid. + There is a projection plane perpendicular to the last axis and + whose position is given by the "depth" parameter. Each vector's + length is adjusted so that it lies onto that plane. Then the + last dimension of each vector is dropped.</p> + + <p>useful for converting from 3-D geometry to 2-D geometry. Also + useful for converting homogeneous 3-D into regular 3-D, as + homogeneous 3-D is really just regular 4-D...(!)</p> + </method></outlet> + </class> + + <class name="#transpose"> + <method name="init"> + <arg name="dim1" type="integer"/> + <arg name="dim2" type="integer"/> + </method> + <inlet id="0"><method name="grid"><arg name="grid" type="grid"/> + swaps the two specified dimensions; dimension numbers are as in <k>[#join]</k>. + </method></inlet> + </class> + + <class name="#fade"> + <method name="init"> + <arg name="rate" type="integer"/> + </method> + <inlet id="0"><method name="grid"><arg name="grid" type="grid"/> + produces on outlet 0 a linear recurrent fading according to the flow of + incoming messages. For example, if rate=5, then 20% (one fifth) + of each new message will be blended with 80% of the previous output. + </method></inlet> + </class> + + <class name="#fade_lin"> + <method name="init"> + <arg name="maxraise" type="integer"/> + <arg name="maxdrop" type="integer"/> + </method> + <inlet id="0"><method name="grid"><arg name="grid" type="grid"/> + produces on outlet 0 a piecewise-linear nonrecurrent fading according to the flow of + incoming messages. For example, if maxraise=2 and maxdrop=4, then with each + new message an output is produced that is at most 2 more or 4 less than the + previous output. + </method></inlet> + </class> + + <class name="#reverse"> + <method name="init"> + <arg name="whichdim"/> + Whichdim is the number of the dimension by which the reverse will + occur. For N-dimensional grids, the dimensions are numbered from 0 + to N-1. In addition, negative numbers from -N to -1 may be used, to + which N will be added. + </method> + </class> +</section> + +<section name="Objects for Coordinate Transforms"> + <class name="#redim"> + <method name="init"> + <arg name="dims" type="dim_list"/> + a list specifying a grid shape that the numbers + will fit into. + (same as with <k>[#import]</k>) + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(dims...)"/> + the elements of this grid are serialized. if the resulting grid + must be larger, the sequence is repeated as much as necessary. + if the resulting grid must be smaller, the sequence is truncated. + then the elements are deserialized to form the resulting grid. + </method> + </inlet> + <inlet id="1"> + <method name="grid"><arg name="grid" type="grid(rank)"/> + this grid is a dimension list that replaces the one + specified in the constructor. + (same as with <k>[#import]</k>) + </method> + </inlet> + <outlet id="0"> + <method name="grid"><arg name="grid" type="grid"/> + redimensioned grid potentially containing repeating data. + </method> + </outlet> + + <p>example: with a 240 320 RGB image, <k>[#redim 120 640 3]</k> will visually + separate the even lines (left) from the odd lines (right). contrary + to this, <k>[#redim 640 120 3]</k> will split every line and put its left half + on a even line and the right half on the following odd line. <k>[#redim]</k> + 480 320 3 will repeat the input image twice in the output image. + <k>[#redim]</k> 240 50 3 will only keep the 50 top lines.</p> + + </class> + <class name="#store"> + <p>A <k>[#store]</k> object can store exactly one grid, using the right + inlet. You fetch it back, or selected subparts thereof, using the left + inlet.</p> + + <method name="init"> + <arg name="contents" type="grid"/> + </method> + + <inlet id="0"> + <method name="bang"> + the stored grid is fully sent to the outlet. + </method> + <method name="grid"><arg name="grid" type="grid(dims..., indices)"/> + in this grid, the last dimension refers to subparts of + the stored grid. sending a Dim(200,200,2) on a <k>[#store]</k> + that holds a Dim(240,320,3) will cause the <k>[#store]</k> to handle + the incoming grid as a Dim(200,200) of Dim(2)'s, where each + Dim(2) represents a position in a Dim(240,320) of Dim(3)'s. + therefore the resulting grid will be a Dim(200,200) of + Dim(3) which is a Dim(200,200,3). in practice this example + would be used for generating a 200*200 RGB picture from a + 200*200 XY map and a 240*320 RGB picture. this object can + be logically used in the same way for many purposes + including color palettes, tables of probabilities, tables + of statistics, whole animations, etc. + </method> + </inlet> + <inlet id="1"> + <method name="grid"><arg name="grid" type="grid(dims...)"/> + replace the whole grid, or a subpart of it (see other options on inlet 1) + </method> + </inlet> + <inlet id="1"> + <method name="reassign">(Future Use): + makes it so that sending a grid to inlet 1 detaches the old buffer from [#store] + and attaches a new one instead. This is the default. + </method> + <method name="put_at"><rest name="indices"/>(Future Use): + makes it so that sending a grid to inlet 1 writes into the existing buffer of [#store]. + <p> + example: suppose you have <k>[#store {10 240 320 3}]</k>. then "put_at 3" + will allow to write a Dim[240,320,3] grid in indices (3,y,x,c) where y,x,c are indices of the incoming grid; + in other words, if that's a buffer of 10 RGB frames, you'd be replacing frame #3. Furthermore, + it also allows you to write a Dim[n,240,320,3] grid at (3+f,y,x,c) where f,y,x,c are indices of the incoming grid, + replacing frame #3, #4, ... up to #3+n-1. Here n is at most 7 because the last frame in the buffer is #9. + </p> + <p>that way of working extends to other kinds of data you'd put in Grids, in any numbers of dimensions; + because, as usual, [#store] wouldn't know the difference. + </p> + </method> + </inlet> + <outlet id="0"> + grids as stored, as indexed, or as assembled from multiple + indexings. + </outlet> + </class> + + <class name="#scale_to"> + <method name="init"> + <arg name="size">{height width} pair.</arg> + </method> + + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid"/>a 3-channel picture to be scaled.</method> + </inlet> + <inlet id="1"> + <method name="int">a {height width} pair.</method> + </inlet> + <outlet id="0"> + <method name="grid"><arg name="grid" type="grid"/>a scaled 3-channel picture.</method> + </outlet> + </class> + + <class name="#scale_by"> + <method name="init"> + <arg name="factor" type="grid dim() or dim(2)"/> + factor is optional (default is 2). + if it's a single value, then that factor is to be used + for both rows and columns. + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(y x channels)"/> + duplicates each pixel several times in width and several times in height, + where the number of times is determined by the factor described above. + twice those of the incoming grid. It is several times faster. + </method> + </inlet> + <inlet id="1"><method name="grid"><arg name="grid" type="grid(1 or 2)"/>sets factor</method></inlet> + <outlet id="0"> + <method name="grid"> + <arg name="grid" type="grid((factor*y) (factor*x) channels)"/> + </method> + </outlet> + </class> + + <class name="#downscale_by"> + <method name="init"> + <arg name="factor" type="+integer"/> + <arg name="how" type="optional symbol(smoothly)"/> + factor is optional (default is 2). + if it's a single value, then that factor is to be used + for both rows and columns. + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(y x channels)"/> + Scales down picture by specified amount. (See scale factor above) + </method> + </inlet> + <inlet id="1"><method name="grid"> + <arg name="grid" type="grid(1 or 2)"/>sets scale factor</method></inlet> + <outlet id="0"> + <method name="grid"> + <arg name="grid" type="grid((factor/y) (factor/x) channels)"/> + </method> + </outlet> + </class> + + <class name="#spread"> + <p>typically you plug a <k>[#for]</k> into this object, + and you plug this object into the left side of a <k>[#store]</k>. it will + scatter pixels around, giving an "unpolished glass" effect.</p> + + <p>if you put a picture in it, however, it will add noise. The + resulting values may be out of range, so you may need to clip them + using min/max.</p> + + <method name="init"> + <arg name="factor">same as inlet 1</arg> + </method> + + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid"/>a coordinate map.</method> + </inlet> + <inlet id="1"> + <method name="int">a spread factor.</method> + </inlet> + <outlet id="0"> + <method name="grid"><arg name="grid" type="grid"/>a coordinate map.</method> + </outlet> + + + <p><k>[#spread]</k> scatters the pixels in an image. Not all original pixels + will appear, and some may get duplicated (triplicated, etc) + randomly. Some wrap-around effect will occur close to the edges. + </p> + + <p> Sending an integer to inlet 1 sets the amount of spreading in + maximum number of pixels + 1. even values translate the whole image + by half a pixel due to rounding.</p> + + </class> + + <class name="#rotate"> + <p>performs rotations on indexmaps and polygons and such.</p> + + <method name="init"> + <arg name="angle" type="0...35999"/> + </method> + <inlet id="0"><method name="grid"> + <arg name="grid" type="grid(anyA 2)"/></method></inlet> + <inlet id="1"><method name="int">rotation angle; 0...36000</method> + </inlet> + <outlet id="0"><method name="grid"> + <arg name="grid" type="grid(anyA 2)"/> + </method></outlet> + </class> + + <class name="#remap_image"> + <p>if you chain indexmap (coordinate) transformations from outlet 1 + to inlet 1, then sending an image in inlet 0 will emit its + deformation out of outlet 0.</p> + + <inlet id="0"/> + <inlet id="1"/> + <outlet id="0"/> + <outlet id="1"/> + </class> +</section> + +<section name="Objects for Reporting"> + <class name="#dim"> + <p>Returns list of dimensions as a grid. Given a grid sized like Dim(240,320,4), + <k>[#dim]</k> will return a grid like Dim(3), whose values are 240, 320, 4. </p> + + <method name="init"> + no arguments. + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(dims...)"/> + ignores any data contained within. + sends a grid dim(length of dims) containing dims. + </method> + </inlet> + <outlet id="0"> + <method name="grid"><arg name="grid" type="grid(rank)"/> + the list of dimensions of the incoming grid. + </method> + </outlet> + </class> + + <class name="#type"> + <p>gives a symbol representing the numeric type of the grid received. + </p> + <outlet id="0"><method name="<numeric type symbol>"/></outlet> + </class> + + <class name="display"> + GUI object equivalent to [print] and [#print]. + <method name="(any)"> + Displays the received message in the box, resizing the box so that the message fits exactly. + </method> + </class> +</section> + +<section name="Objects for Color Conversion"> + <class name="#apply_colormap_channelwise"> + <p>This object is useful for color correction. For each pixel + it takes it apart, looks up each part separately in the colormap, + and constructs a new pixel from that. You may also color-correct + colormaps themselves.</p> + + <p>Only works for things that have 3 channels.</p> + + <p>Note: if you just need to apply a palette on an indexed-color + picture, you don't need this. Just use #store instead.</p> + + <inlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns channels)"/> + picture + </method></inlet> + <inlet id="1"> + <method name="grid"> + <arg name="grid" type="grid(intensities channels)"/> + colormap ("palette") + </method></inlet> + <outlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns channels)"/> + picture + </method></outlet> + </class> + + <class name="#rgb_to_greyscale"> + <inlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns {red green blue})"/> + </method></inlet> + <outlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns {white})"/></method> + </outlet> + </class> + + <class name="#greyscale_to_rgb"> + <inlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns {white})"/></method> + </inlet> + <outlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns {red green blue})"/> + </method></outlet> + </class> + + <class name="#yuv_to_rgb"> + <p>note: may change slightly to adapt to actual video standards.</p> + <inlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns {y u v})"/></method> + </inlet> + <outlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns {red green blue})"/> + </method></outlet> + </class> + + <class name="#rgb_to_yuv"> + <p>note: may change slightly to adapt to actual video standards.</p> + <inlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns {red green blue})"/></method> + </inlet> + <outlet id="0"><method name="grid"> + <arg name="grid" type="grid(rows columns {y u v})"/> + </method></outlet> + </class> +</section> + +<section name="Objects for Miscellaneous Picture Processing"> + <class name="#convolve"> + <p>this is the object for blurring, sharpening, finding edges, + embossing, cellular automata, and many other uses.</p> +<!--NYI + <attr name="seed"> + + </attr> +--> + <method name="init"> + <arg name="op_para" type="numop2"/> + <arg name="op_fold" type="numop2"/> + <arg name="seed" type="grid"/> + <arg name="right_hand" type="grid" default="none"/> + </method> + <inlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(rows columns rest...)"/> + splits the incoming grid into dim(rest...) parts. + for each of those parts at (y,x), a rectangle of such + parts, centered around (y,x), is combined with the + convolution grid like a <k>[#]</k> of operation op_para. Then + each such result is folded like <k>[#fold]</k> of operation + op_fold and specified base. the results are assembled + into a grid that is sent to the outlet. near the borders of + the grid, coordinates wrap around. this means the whole grid + has to be received before production of the next grid + starts. + </method> + </inlet> + <inlet id="1"> + <method name="grid"> + <arg name="grid" type="grid(rows2 columns2)"/> + this is the convolution grid and it gets stored in + the object. if rows2 and/or columns2 are odd numbers, + then the centre of convolution is the middle of the convolution + grid. if they are even numbers, then the chosen centre will + be slightly more to the left and/or to the top, because the + actual middle is between cells of the grid. + </method> + </inlet> + <outlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(rows columns rest...)"/> + </method> + </outlet> + </class> + + <class name="#contrast"> + <method name="init"> + <arg name="iwhiteness" default="256">same as inlet 1.</arg> + <arg name="contrast" default="256">same as inlet 2.</arg> + </method> + + <inlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(rows columns channels)"/> + produces a grid like the incoming grid but with + different constrast. + </method> + <p><k>[#contrast]</k> adjusts the intensity in an image. + resulting values outside 0-255 are automatically clipped.</p> + </inlet> + <inlet id="1"> + <method name="int"> + this is the secondary contrast (inverse whiteness). + it makes the incoming black + correspond to a certain fraction between output black and the + master contrast value. no effect is 256. default value is 256. + </method> + </inlet> + <inlet id="2"> + <method name="int"> + this is the master contrast. it makes the incoming white + correspond to a certain fraction between output black and output + white. no effect is 256. default value is 256. + </method> + </inlet> + <outlet> + <method name="grid"> + <arg name="grid" type="grid(rows columns channels)"/> + </method> + </outlet> + </class> + + <class name="#posterize"> + <p><k>[#posterize]</k> reduces the number of possible intensities in an image; + it rounds the color values.The effect is mostly apparent with a low + number of levels.</p> + + <method name="init"> + <arg name="levels">same as inlet 1</arg> + </method> + + <inlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(rows columns channels)"/> + produces a posterized picture from the input picture. + </method> + </inlet> + + <inlet id="1"> + <method name="int"> + this is the number of possible levels per channel. the + levels are equally spaced, with the lowest at 0 and the + highest at 255. the minimum number of levels is 2, and the + default value is 2. + </method> + </inlet> + + <outlet id="0"> + </outlet> + + <p>example: simulate the 216-color "web" palette using 6 levels. + simulate a 15-bit display using 32 levels.</p> + </class> + + <class name="#solarize"> + <p>makes medium intensities brightest; formerly brightest colours + become darkest; formerly darkest stays darkest. This filter is linear: + it's like a 200% contrast except that overflows are <i>mirrored</i> + instead of clipped or wrapped.</p> + <inlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(rows columns channels)"/></method> + </inlet> + <outlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(rows columns channels)"/></method> + </outlet> + </class> + + <class name="#checkers"> + <inlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(y x {y x})"/> + result from a <k>[#for {0 0} {height width} {1 1}]</k> + </method> + </inlet> + <outlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(y x {r g b})"/> + checkered pattern of 50%/75% greys + in 8x8 squares + </method> + </outlet> + </class> + + <class name="#layer"> + <inlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(y x {r g b a})"/> + a picture that has an opacity channel. + will be used as foreground. + </method> + </inlet> + <inlet id="1"> + <method name="grid"> + <arg name="grid" type="grid(y x {r g b})"/> + a picture that has NO opacity channel. + will be used as background. + </method> + </inlet> + <outlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(y x {r g b})"/> + a picture that has NO opacity channel. + the opacity channel of the foreground is used as + a weighting of how much of either picture is seen + in the result. + </method> + </outlet> + </class> + + <class name="#draw_image"> + <method name="init"> + <arg name="operator" type="numop2"> + Normally you would use the "put" operator here; + but abnormally I recommend + and ^ for psychedelic effects. + </arg> + <arg name="picture" type="grid(y,x,channels)"/> + <arg name="position" type="grid({y x})"/> + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(y x channels)"/> + picture onto which another picture will be superimposed. + </method> + <method name="tile"><arg name="flag" type="0 or 1"/> + if enabled, inlet 1 picture will be repeated to cover the inlet 0 picture. + </method> + <method name="alpha"><arg name="flag" type="0 or 1"/> + if enabled, inlet 1 picture will be combined with inlet 0 picture using + the selected operator, + and then blended with inlet 0 picture according to transparency of + the inlet 1 picture, and then inserted in the result. + if disabled, the blending doesn't occur, as the transparency level + is considered to be "opaque". note that with alpha enabled, + the last channel of inlet 1 picture is considered to represent transparency. + </method> + </inlet> + <inlet id="1"> + <method name="grid"><arg name="grid" type="grid(y x channels)"/> + picture that will be superimposed onto another picture. + </method> + </inlet> + <inlet id="2"> + <method name="grid"><arg name="grid" type="grid({y x})"/> + position of the inlet 0 picture corresponding to top-left corner + of inlet 1 picture. + </method> + </inlet> + <outlet id="0"> + <method name="grid"><arg name="grid" type="grid(y x channels)"/> + resulting picture. + </method> + </outlet> + </class> + + <class name="#draw_polygon"> + <method name="init"> + <arg name="operator" type="numop2"> + Normally you would use the "put" operator here; + but abnormally I recommend + and ^ for psychedelic effects. + </arg> + <arg name="color" type="grid(channels)"/> + <arg name="vertices" type="grid(vertices,{y x})"/> + </method> + <inlet id="0"> + <method name="grid"><arg name="grid" type="grid(y x channels)"/> + picture on which the polygon will be superimposed. + </method> + </inlet> + <inlet id="1"> + <method name="grid"><arg name="grid" type="grid(channels)"/> + color of each pixel + </method> + </inlet> + <inlet id="2"> + <method name="grid"><arg name="grid" type="grid(vertices {y x})"/> + vertices of the polygon. + </method> + </inlet> + <outlet id="0"> + <method name="grid"> + <arg name="grid" type="grid(y x channels)"/> + modified picture. + note: starting with 0.7.2, drawing a 1-by-1 + square really generates a 1-by-1 square, and + so on. This is because the right-hand border of a + polygon is excluded, whereas it was included + before, leading to slightly-wider-than-expected polygons. + </method> + </outlet> + </class> + + <class name="#text_to_image"> + <p>inlet 2 receives a font grid, for example, [#in grid file lucida-typewriter-12.grid.gz]</p> + <p>inlet 1 receives a 2 by 3 matrix representing the colours to use (e.g. (2 3 # 0 170 0 255 255 0) means yellow on green)</p> + <p>inlet 0 receives a bang, transforming the data into an image suitable for #draw_image.</p> + </class> + <class name="#hueshift"> + <p>inlet 1 receives an angle (0..36000)</p> + <p>inlet 0 receives a RGB picture that gets hueshifted by a rotation in the colorwheel by the specified angle; it gets sent to outlet 0.</p> + </class> +</section> + +<section name="Other Objects"> + <class name="pingpong"> + Transforms linear counting (0, 1, 2, 3, 4, ...) into a back-and-forth counting (0, 1, 2, 1, 0, ...) + from 0 to a specified upper bound. + <method name="init"> + <arg name="top" type="int"/> + </method> + <inlet id="1"> + <method name="float"><arg name="top" type="float"/></method> + </inlet> + <inlet id="0"> + <method name="float"> + a value to be transformed. + If, for example, top=10, then values 0 thru 10 are left unchanged, + values 11 thru 19 are mapped to 9 thru 1 respectively, and 20 thru 30 + are mapped to 0 thru 10, and so on. + </method> + </inlet> + </class> + <class name="fps"> + <method name="init"> + <arg name="clocktype" type="symbol(real|user|system|cpu)"> + which clock to use. "real" uses wallclock time. "user" uses + the amount of time spent in the process. "system" uses the + amount of time spent in the kernel on behalf of the process. + "cpu" uses the Pentium clock, which is like a more precise + version of "real" if you have a Pentium. + </arg> + <arg name="detailed" type="symbol(detailed)">optional</arg> + </method> + <method name="init detailed"> + </method> + <inlet id="0"> + <method name="bang"> + Times at which bangs are received are stored until a large + enough sample of those is accumulated. Large enough is defined + to be whenever the timespan exceeds one second. Then a report + is made through the outlet. + </method> + <method name="(else)"> + messages other than bangs are ignored. + </method> + </inlet> + <outlet id="0"> + <method name="float"> + non-detailed mode only. + this is the messages-per-second rating. + </method> + <method name="list(float,6)"> + detailed mode only. + this is: messages-per-second, followed by five values of + milliseconds-per-message: minimum, median, maximum, average, + standard deviation. + (the average happens to be simply 1000 divided by the + messages-per-second, but it is convenient to have it anyway) + </method> + </outlet> + </class> + <class name="unix_time"> + <p> + This object returns the Unix timestamp. The first + outlet does so with ASCII, the second in seconds and the third outlet + outputs the fractions of seconds up to 1/100 000 th of a second which is useful for creating + filenames. + </p> + <inlet id="0"><method name="bang"/></inlet> + <outlet id="0"><method name="symbol"/>Outputs the time and date in ASCII format</outlet> + <outlet id="1"><method name="float"/>Outputs the Unix timestamp in seconds</outlet> + <outlet id="2"><method name="float"/>Outputs the fractions of a second up to 10 microseconds (?) (actual precision is platform-dependent afaik)</outlet> + </class> + <class name="plotter_control"> + <p> + This object produces HPGL instructions in ASCII form + that can be sent to the comport object in order to control an HPGL + compatible plotter. + </p> + <inlet id="0"><method name="symbol"/></inlet> + <outlet id="0"><method name="symbol"/>Outputs the HPGL commands in ASCII format</outlet> + </class> +</section> + +<section name="jMax emulation"> + <p>those classes emulate jMax functionality, for use within PureData.</p> + + <class name="fork"> + <p>Every incoming message is sent to inlet 1 and then sent to + inlet 0 as well. Messages remain completely unaltered. Contrast + with PureData's "t a a" objects, which have the same purpose but + transform bangs into zeros and such.</p> + + <inlet id="0"><method name="(any)"/></inlet> + <outlet id="0"/> + <outlet id="1"/> + </class> + <class name="foreach"> + <inlet id="0"><method name="list"><rest/> + Outputs N messages, one per list element, in order. + </method></inlet> + </class> + <class name="listflatten"> + <inlet id="0"><method name="list"><rest/> + </method></inlet> + </class> + <class name="listlength"> + <inlet id="0"><method name="list"> + outputs the number of elements in the incoming list. + </method></inlet> + </class> + <class name="listelement"> + <method name="init"> + <arg name="index" type="int" isattr="yes"/> + </method> + <inlet id="0"><method name="list"><rest/> + Outputs one element of the list, as selected by "index". + Also accepts negative indices (e.g.: -1 means "last"), unlike jMax. + </method></inlet> + <inlet id="1" attr="index"/> + </class> + <class name="listsublist"> + <method name="init"> + <arg name="index" type="int" isattr="yes"/> + <arg name="length" type="int" isattr="yes"/> + </method> + <inlet id="0"><method name="list"><rest/> + Outputs consecutive elements of the list, as selected by "index" and "length". + Also accepts negative indices (e.g.: -1 means "last"), but unlike jMax. + </method></inlet> + <inlet id="1" attr="index"/> + <inlet id="2" attr="length"/> + </class> + <class name="listprepend"> + <method name="init"> + <rest name="list" isattr="yes"/> + </method> + <inlet id="0"><method name="list"><rest/> + Outputs the stored list followed by the incoming list, all in one message. + </method></inlet> + <inlet id="1" attr="list"/> + </class> + <class name="listappend"> + <method name="init"> + <rest name="list" isattr="yes"/> + </method> + <inlet id="0"><method name="list"><rest/> + Outputs the incoming list followed by the stored list, all in one message. + </method></inlet> + <inlet id="1" attr="list"/> + </class> + <class name="listreverse"> + <inlet id="0"><method name="list"><rest/> + Outputs the incoming list, from last element to first element. + </method></inlet> + </class> + <class name="oneshot"> + Like [spigot], but turns itself off after each message, so you have to turn it on + again to making it pass another message. + </class> + <class name="inv+"> + <method name="init"> + <arg name="b" type="float" isattr="yes"/> + </method> + <inlet id="0"><method name="float"><arg name="a" type="float"/> + outputs b-a + </method></inlet> + <inlet id="1" attr="b"/> + </class> + <class name="inv*"> + <method name="init"> + <arg name="b" type="float" isattr="yes"/> + </method> + <inlet id="0"><method name="float"><arg name="a" type="float"/> + outputs b/a + </method></inlet> + <inlet id="1" attr="b"/> + </class> + <class name="messageprepend"> + (This is not in jMax, but is there to help port $* messageboxes) + <method name="init"><rest name="list" isattr="yes"/></method> + <inlet id="0"><method name="<any>"><rest/> + Like [listprepend], but operates on whole messages, that is, including the selector. + </method></inlet> + <inlet id="1" attr="list"/> + </class> + <class name="messageappend"> + (This is not in jMax, but is there to help port $* messageboxes) + <method name="init"><rest name="list" isattr="yes"/></method> + <inlet id="0"><method name="<any>"><rest/> + Like [listappend], but operates on whole messages, that is, including the selector. + </method> + </inlet> + <inlet id="1" attr="list"/> + </class> + <class name="shunt"> + Compatible with jMax's [demux]. + <method name="init"> + <arg name="n">number of outlets</arg> + <arg name="i" default="0">initial selected outlet</arg> + </method> + <inlet id="0"><method name="<any>"><rest/> + Routes a message to the active outlet. + </method></inlet> + <inlet id="1"><method name="int"><arg name="i" type="int"/> + Selects which outlet is active. + </method></inlet> + </class> + <class name="demux"> + please use shunt instead (name conflict with another Pd external) + </class> + <class name="range"> + <method name="init"> + <rest name="separators" type="float"></rest> + </method> + <inlet id="0"><method name="float"> + a value to be sent to one of the outlets. The first outlet is for values + smaller than the first argument; else the second outlet is for values smaller + than the second argument; and so on; and the last outlet is for values greater + or equal to the last argument. + </method></inlet> + <inlet id="1..n"><method name="float"> + sets the corresponding separator in the separator list. + </method></inlet> + </class> +</section> +</documentation> |