Index of values

alias for Num.multf

alias for Concrete.CPoint.mult

alias for Num.multn

Abbreviation for append

alias for Concrete.CPoint.add

alias for Num.addn

alias for Concrete.CPoint.sub

alias for Num.subn

alias for Num.divf

alias for Concrete.CPoint.div

alias for Num.divn

Add an arrow head at any point of an arrow.

Add a foot (an inverted head) at the beginning of the arrow.

Add a head at the end of the arrow.

Add a line to a body.

Useful operations on Nums

Append two commands to form a compound command

Append a path to another using joint style

Append a metapath to another using joint style

arrow d n1 n2 adds an arrow between n1 and n2 in the diagram d, by side effect.

Get the bounding box of a picture (with default padding, as in MetaPost)

below p1 p2 returns a picture in which p2 is placed below p1

beside p1 p2 returns a picture in which p2 is placed right to p1

bin label l r creates a binary node with label label and children l and r.

box b creates a new box containing the box b

Draw an arrow between two boxes.

Use box_to_box to draw an arrow from a to b, stopping at the box boundaries.

Use box_to_point to draw an arrow from a to b, stopping at the box boundaries.

Get the bounding path of a box

Build a cycle from a set of intersecting paths

center pt x centers the box x at the point pt

Place a picture centered at some point

circle pic creates a circle box containing the picture pic.

A circular pen of diameter 1 bp

A simple arrow with one line and two straight lines for the head.

clip pic path limits pic to the cyclic path path; all elements outside of path are cut off.

cmyk c m y k constructs the color that corresponds to the color code CMYK(c,m,y,k)

similar to cmyk, but takes the factor of transparency

color n returns the RGB color associated to name n (as defined in /etc/X11/rgb.txt).

stack l builds a list of pictures from a list l of floating-point lists.

compare l draws a comparative histogram from a list l of floating-point lists.

Add a knot at the end of a path

Add a knot at the end of a metapath

Get the bounding box of a picture, according to its corners and supplied padding dx and dy.

the path that connects 2 boxes and stops at the box boundaries

the path that connects a box and a point and stops at the box boundaries

the path that connects a box and a point and stops at the box boundaries

Create a diagram that consists of the given nodes

remove the part of a path before the first intersection or after the last

cut_after p1 p2 cuts p2 after the intersection with p1.

Same as Path.cut_after, but cuts before

Close a path using direction dir and style style

Close a metapath using direction dir and style style

the default color is black

The default pen; it corresponds to Pen.scale (Num.bp 0.5) Pen.circle

The default joint style (JCurve)

The default joint style (JCurve)

Converts degrees into radians

dir f is the point at angle f on the unit circle.

direction f p returns the direction of the tangent at point f p.

Same as direction but for a Num.t.

Works like label, but puts a dot at point p as well

Draws the diagram.

Draw an arrow following the given path.

Draws a box

Draw a path

Draw a path

Draw a point

draws a picture

Draw a thick arrow.

dump ?prelude ?pdf f builds a Metapost file f.mp for all figures, then runs Metapost on it, and renames figure files according to the names specified to emit.

Use the figures recorded by the function emit of metapost

dump_tex ?prelude f builds a LaTeX file f.tex for all the figures, using LaTeX prelude prelude if given.

ellipse pic creates a elliptic box containing the picture pic.

ellipse rx ry returns an ellipse of great axis rx and small axis ry.

elts b returns the sub-boxes of b; returns the empty array for the empty box or a box containing a picture.

One figure by page

emit the list of figures as a slideshow, using the slideshow function.

The empty kind with no line nor head.

the empty box

the empty box with the same position and dimension as the box

The pattern composed of evenly spaced dashes

insert an image given its filename - *EXPERIMENTAL*

Fill a contour given by a closed path

Compute the concrete value

fold on all the splines of a path

Construct a pen from a closed path

A full circle of radius 1 and centered on the origin

get n b returns the sub-box of b of name n, if any, and raises Invalid_argument otherwise.

the geometric mean of two nums : sqrt(a * a + b * b)

Aligns the given boxes in a way that is similar to hblock and vblock: boxes are aligned in a grid where all cells have the same size.

similar to gridi, but using a matrix defined with a function

similar to grid, but using lists instead of arrays

group bl groups a list of boxes bl into a single box

The upper half of fullcircle

hblock bl aligns the boxes of bl horizontally and surround them with new rectangular boxes of the same height; all these new boxes are packed together into the returned box.

aligns the given boxes horizontally and returns a box containing these boxes as sub-components.

A simple head with two straight lines.

Same as head_classic except that the two lines are joined together to form a triangle.

Same as head_triangle except that the triangle is not drawn (hence the absence of pen properties) but is filled with the given color.

return the height of the box

The identity transformation

if_null n n1 n2 is equal to n1 if n is null, n2 othewise

An arrow made of two parallel lines, a classic head and a classic foot.

An arrow made of two parallel lines and a classic head.

intersection p1 p2 return a list of pair of abscissa.

test if the color is opaque

iter on all the splines of a path: iter f p applies f successively to the splines of p with : the start point of the spline as first argument , the control point of the start point as second argument , the control point of the end point as third argument , the end point as fourth argument

iter m n f builds a command that corresponds to the sequence of commands f m; f (m+1); ... ; f(n)

iterl f l builds a command that corresponds to the sequence of commands f x1; f x2; ... ; f xn for l = [x1;x2;...;xn]

Build a path from n float_pairs and n-1 joints, with default directions

Build a metapath from n float_pairs and n-1 joints, with default directions

Build a path from n knots and n-1 joints

Build a metapath from n knots and n-1 joints

Build a path from n points and n-1 joints, with default directions

Build a metapath from n points and n-1 joints, with default directions

Build a knot from a pair of floats

Build a knot from a pair of floats

Build a knot from a Num.t pair; the optional arguments are as in Path.knot

Build a knot from a Num.t pair; the optional arguments are as in MetaPath.knot

Build a knot from a point; the optional arguments are the incoming directions

Build a knot from a point; the optional arguments are the incoming directions

label ~pos:`West pic p puts picture pic at the left of the point p

Creation

Number of nodes in a path, minus one.

length p is the length of vector from the origin to p

Make a picture from a drawing command

Head description constructor.

mk_skeleton w h dx dy builds a skeleton of width w and height h, each cell being dx units wide and dy units high.

Construct a node at a given position with a given content in Latex format and a box style

a simple tree placement algorithm: align all subtrees horizontally , and place the parent node above.

node label children creates a node with label label and a list of children children.

Similar to node but with labels on edges.

A command that has no effect

Normalize the vector represented by the point.

nth i b returns the i-th sub-box of b.

exactly Num.bp

Obtain a metapath from a path with exactly the same control point.

one_intersection p1 p2 return one of the intersections between p1 and p2 or raise Not_found if none exists

make a color opaque

Return the opposite position of a position (west for east, southeast for northwest, center for center, ...).

Builds a point from a pair of floats

patatoid pic creates an undefined, vaguely rectangular box containing the picture pic.

See Box.patatoid.

patatoid2 pic creates an undefined, vaguely rectangular box containing the picture pic, which is guaranteed to be fully contained in the patatoid.

See Box.patatoid2.

path p creates a new box containing the path p

Build a path from a list of pairs of floats

Build a metapath from a list of pairs of floats

Same as path, but uses a knot list

Same as metapath, but uses a knot list

Same as path, but uses a Num.t list

Same as metapath, but uses a Num.t list

Same as path but uses a point list

Same as metapath but uses a point list

This function, together with the type on_off permits to construct custom dash patterns, by giving a list of on / off constructors, with corresponding lengths

3 .14159

pic p creates a new box containing the picture p

Place a box relatively to another box.

Place a picture with its bottom left corner at some point

Place a picture with its bottom right corner at some point

Place a picture with its upper left corner at some point

Place a picture with its upper right corner at some point

point f p returns a certain point on the path p; f is given "in control points": 0. means the first control point, 1. the second and so on; intermediate values are accepted.

Use point_to_box to draw an arrow from a to b, stopping at the box boundaries.

Use point_to_point a b to draw an arrow from a to b.

Same as point but for a Num.t.

Construct a point from two numeric values

pt are PostScript points.

Same as p, but builds a list of points

The right half of halfcircle

read the prelude from a tex file, until the end of file or the text "\begin{document}" if it is outside a comment

rect pic creates a rectangular box containing the picture pic.

rectangle w h returns a rectangle of width w and height h.

Reflect an object with respect to the line that goes through the two given points

reverse p return the path p reversed

rgb r g b constructs the color that corresponds to the color code RGB(r,g,b)

similar to rgb, but takes integers between 0 and 255 as argument

similar to rgb8, but takes the factor of transparency

similar to rgb, but takes the factor of transparency

Rotate a point by an angle in degrees

Rotate an object by an angle given in degrees, around a given point

rotate_around p1 f p2 rotates p2 around p1 by an angle f in degrees

Rotate an object by an angle given in degrees

round_rect pic creates a rectangular box containing the picture pic, with rounded corners.

round_rect w h rx ry returns a rectangle of width w and height h with rounded corners.

Multiply a point by a scalar

Scale an object by a constant factor.

Scale a dash pattern

segment f p1 p2 is the point (1-f)p1 + fp2.

Group a list of commands to a single command

set_height2 `North y1 `South y2 b return the box b with its height and center chosen such as the ordinate of the top (because of `North) of the box is at y1 and the ordinate of its south is at y2

set_prelude filename uses the prelude of the file filename for compilation of the tex snippets

set_prelude2 prelude uses this prelude for compilation of the tex snippets

Deprecated in a next release

Some options (the mlpost tool takes care of them)

shift pt x shifts the box x about the point pt

Sum two points

Shift an object with respect to a point

Shift a dash pattern

simple l draws an histogram from a list l of floating-point values.

Draw a simple arrow following the given path.

Slant an object: the point (x,y) becomes (x+ay,y), with slanting factor a

takes a list of figures and returns a list of figures of exactly the same size (the size of the biggest figure).

A pen in form of a square, of length 1 bp

stack l builds a picture from a list l of floating-point lists.

compare l draws a stacked histogram from a list l of floating-point lists.

Create a simple path with one knot

Create a simple metapath with one knot

strip n p removes two segments of length n at each end of path p

sub b1 b returns the sub-box of b which has the same name as b1, if any, and raises Invalid_argument otherwise.

Substract two points

subpath start end path selects the subpath of path that lies between start and end.

Same as subpathn but using Num.t.

aligns the given boxes both vertically and horizontally and returns a box containing all these boxes (with rows as first sub-components, and then individual boxes as sub-components of each row).

similar to tabular, but using a matrix defined with a function

similar to tabular, but using lists instead of arrays

tex s creates a new box containing the LaTeX string s

Take a string in Latex format and transform it into a picture

Obtain a metapath from a path with exactly the same control point.

Compute the control point of the path for a good looking result according to the constraint on the direction, tension, curve

Apply a transformation to a picture

Apply a transformation to pens

Apply a transformation to a path

Apply a transformation to a point

transparent f c multiplies by f the factor of transparency of c

A simple arrow with a triangular head.

A simple arrow with a triangular head filled with black.

Shortcuts for bp 0., bp 1. and bp 2..

These have been superseded by the preceding functions

A full square of size 1 and centered on the origin

similar to hblock, with vertical alignment.

aligns the given boxes vertically and returns a box containing these boxes as sub-components.

return the width of the box

The pattern composed of evenly spaced dots

xpart p is the x coordinate of point p

Shortcuts for transformations of pens

Shortcuts for transformations of Paths

Scales the X coordinate of a point by a scalar

Scale an object by a constant factor, but only in the x direction

ypart p is the y coordinate of point p

Scales the Y coordinate of a point by a scalar

Scale an object by a constant factor, but only in the y direction

Zscaled multiplies points of the object by the given point, using "complex" multiplication: (x,y) * (a,b) = (ax - by, bx + ay); its effect is to rotate and scale so as to map (1,0) into (a,b)