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:affine a,b,c,d,tx,ty

 Make an affine transformation for the subsequent objects: (x;y) -> [a,b;c,d](x;y)+(tx;ty).

:alt texte

This command is only available for WIMS OEF and doc and MUST appear on the first line. It gives the attribut alt="text" to the image.

:animate fra,del,rep

 This command is only available for WIMS OEF and doc, and MUST appear on the first line or after the command alt. Set up animation for fra frames, with del seconds between frames, and rep repetitions (rep=0 means infinite repetition).<br> Frame control is done via two variables: <tt>animstep</tt> (integer) going from 1 to frame count, and <tt>s</tt> going from 0 to 1.

:animstep n

Set up an integer which can be called in any evaluation. Used for animation. Direct use of this command must be avoided under WIMS.

:arc x,y,w,h,a1,a2,[color]

 Arc segment of an ellipse of width w and hight h centered at (x,y), from angle a1 to angle a2 (in degrees) counterclockwise. It is recommended to take x to ensure compatibility with canvasdraw.

:arrow x1,y1,x2,y2,l,[color]

 Arrow (x1,y1)--->(x2,y2), where l is the length (in pixels) of arrowhead.

:arrow2 x1,y1,x2,y2,l,[color]

 Two sided arrow (x1,y1)<--->(x2,y2), where l is the length (in pixels) of arrowhead.

:arrows [color],l,x1,y1,x2,y2,x3,y3,x4,y4,...

Arrow (x1,y1)--->(x2,y2), (x3;y3)--->(x4;y4) where l is the length (in pixels) of arrowhead.

:arrows2 [color],l,x1,y1,x2,y2,x3,y3,x4,y4,...

Two sided arrow (x1,y1)<--->(x2,y2), (x3;y3)<--->(x4;y4) where l is the length (in pixels) of arrowhead.

:circle x,y,r,[color]

 Circle of center (x,y) and radius r (in pixels).

:circles [color],x1,y1,r1,x2,y2,r2 ...

Circles of center (x1;y1) and radius r1 (according to xrange) ...

:comment

 Does nothing.

:copy x,y,x1,y1,x2,y2,[filename]

 insert

 Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y). If x1=y1=x2=y2=-1, the whole [filename] is copied. [filename] is the address of the file from the directory wims/public_html/gifs or from the directory common_images for OEF modules.

:copyresized x1,y1,x2,y2,dx1,dy1,dx2,dy2,[filename]

 Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename], possibly resized, to the region of (dx1,dy1) to (dx2,dy2). If x1=y1=x2=y2=-1, the whole [filename] is copied and resized.

:crosshair x1,y1,[color]

 draw a crosshair point at (x1,y1)

:crosshairs [color], x1,y1,x2,y2,...

 draw multiple crosshair points at given coordinates (x1,y1), (x2,y2), ...

:crosshairsize w

 Set crosshair size to w (in pixels).

:dashed

Keyword: Indique que la commande suivante est en pointillés si cette possibilité existe pour cette commande.

:dashhalfline x1,y1,x2,y2,[color]

Dashed halfline from (x1;y1) through (x2; y2).

:darrow x1,y1,x2,y2,l,[color]

 dasharrow dashedarrow

 Dashed arrow (x1,y1)- - ->(x2,y2), where l is the length (in pixels) of arrowhead.

:darrow2 x1,y1,x2,y2,l,[color]

dasharrow2 dashedarrow2

 Two sided dashed arrow (x1,y1)<- - ->(x2,y2), where l is the length (in pixels) of arrowhead.

:darrows [color],l,x1,y1,x2,y2,x3,y3,x4,y4,...

Flèches en pointillés allant du point (x1;y1) vers le point (x2;y2), du point (x3;y3) vers le point (x4;y4) et dont la tête est de longueur l pixels.

:darrows2 [color],l,x1,y1,x2,y2,x3,y3,x4,y4,...

Flèches en pointillés entre les points (x1;y1) et (x2;y2), (x3;y3) et (x4;y4) ayant deux têtes de longueur l pixels.

:dashhalfline x1,y1,x2,y2,[color]

Demi-droite en pointillés partant de (x1; y1) et passant par (x2; y2) de couleur color

:dhline x,y,[color]

dashedhorizontalline dashhorizontalline hdline horizontaldashedline

  Dashed horizontal line through (x,y).

:diamondfill x,y,nx,ny,[color]

 diafill

 Flood fill the region containing (x,y) with the same original color by double hatching (parallel lines), (nx,ny) being the horizontal and vertical distance between adjacent lines (in pixels).

:dline x1,y1,x2,y2,[color]

 dashedline dashline

Droite en pointillés passant par les points de coordonnées (x1; y1) et (x2; y2).

:dlines [color],x1,y1,x2,y2,x3,y3...

 dashedlines dashlines

 Droites en pointillés passant par les points de coordonnées (x1; y1) et (x2; y2), (x3;y3) et (x4;y4) etc.

:dpolyline [color],x1,y1,x2,y2,x3,y3...

 n dashed line segments (x1,y1)---(x2,y2)---(x3,y3)...

:dotfill x,y,nx,ny,[color]

 pointfill diskfill

 Flood fill the region containing (x,y) with the same original color by (fat) dots at each (nx,ny) pixels.

:dsegment x1,y1,x2,y2,[color]

 dashsegment

 Dashed line segment (x1,y1)---(x2,y2).

:dvline x,y,[color]

dashedverticaline dashverticalline vdline verticaldashedline

 Dashed vertical line through (x,y).

:ellipse x,y,w,h,[color]

Ellipse with center (x,y), width w and height h.

:ellipses [color],x1,y1,w1,h1,x2,y2,w2,h2,...

Ellipse with center (x1,y1), width w1 and height h1 etc.

:fcircle x,y,d,[color]

 ball disk filledcircle

 Filled circle of center (x,y) and diameter d (in pixels).

:fcircles [color],x1,y1,r1,x2,y2,r2 ...

Filled circles of center (x1;y1) and radius r1 (according to xrange) ...

:fellipse x,y,w,h,[color]

filledellipse

 Filled ellipse with center (x,y), width w and height h.

:fhyptriangle x1,y1,x2,y2,x3,y3,[color]

Triangle dans le disque de Poincaré de sommets (x1; y1), (x2; y2), (x3; y3) (géométrie hyperbolique) et rempli avec la couleur color.

:fill x,y,[color]

flood floodfill

 Flood fill the region containing (x,y) with the same original color, by color.

:filled

Keyword: indique que l'objet suivant sera colorié si pertinent

:filltoborder x,y,[color1],[color2]

 Flood fill by color2 the region containing (x,y) and bounded by color1.

:fpoly [color],x1,y1,x2,y2,x3,y3...

 filledpoly filledpolygon fpolygon

 Filled polygon (x1,y1)--(x2,y2)--(x3,y3)...

:frect x1,y1,x2,y2,[color]

 filledrect fillecrectangle frectangle

 Filled rectangle with corners (x1,y1) and (x2,y2).

:fsquare x,y,s,[color]

filledsquare

 Filled square with sides s (in pixels) and first corner at (x,y).

:ftriangle x1,y1,x2,y2,x3,y3,[color]

filledtriangle

 Filled triangle with vertices (x1,y1),(x2,y2),(x3,y3).

:gridfill x,y,nx,ny,[color]

 Flood fill the region containing (x,y) with the same original color by a grid of horizontal and vertical lines with distance (nx,ny) (in pixels).

:halfline x1,y1,x2,y2,[color]

Halfline from (x1; y1) through (x2; y2).

:hatchfill x,y,nx,ny,[color]

 Flood fill the region containing (x,y) with the same original color by hatching (parallel lines), (nx,ny) being the horizontal and vertical displacement of adjacent lines (in pixels).

:hline x,y,[color]

horizontalline

 Horizontal line through (x,y).

:hyplines [color],x1,y1,x2,y2,x3,y3,x4,y4, ...

Géodésiques hyperboliques dans le disque de Poincaré passant par les points de coordonnées (x1; y1) et (x2; y2), (x3; y3) et (x4; y4), etc

:hypsegments [color],x1,y1,x2,y2,x3,y3,x4,y4, ...

Géodésiques hyperboliques dans le disque de Poincaré entre les points de coordonnées (x1; y1) et (x2; y2), (x3; y3) et (x4; y4), etc

:hyptriangle x1,y1,x2,y2,x3,y3,[color]

Triangle dans le disque de Poincaré de sommets (x1; y1), (x2; y2), (x3; y3) (géométrie hyperbolique)

:interlace

Set interlaced image

:killaffine

 Reset affine transformation to identity.

:killbrush

Turns off brush selection for line drawing.

:killlinear

killrotation killrotate

 Reset linear transformation to identity.

:killtile

 Turns off tile selection for filling.

:killtranslation

killtranslate

 Reset translation to identity.

:lattice x0,y0,x1,y1,x2,y2,n1,n2,[color]

 A lattice of n1xn2 points starting with (x0,y0), with n1 rows in direction of (x1,y1) and n2 rows in direction of (x2,y2).

:levelcurve [color],[expression],l1,l2,...

 Draws level curves for expression, with levels l1, l2,...

:levelstep n

 Set the number of pixel steps in levelcurve plotting. Between 1 and 16, defaults to 4.

:lines [color],x1,y1,x2,y2,x3,y3,x4,y4, ...

Droites passant par les points de coordonnées (x1; y1) et (x2; y2), (x3; y3) et (x4; y4), etc

:linear a,b,c,d

 Make a linear transformation for the subsequent objects: (x;y) -> [a,b;c,d](x;y).

:linewidth w

 Set line width to w (in pixels) for line drawing.

:multicopy n1,n2,...,nk, [filename]

Copy the image [filename] in the parallelogram given by parallelogram command (with deformation) and apply to it the transformations n_1, ..., n_k (up to 19). If no n1 ... are given, all the transformations are applied. So setparallelogram and some setvector or setmatrix or settransform must be previously defined.

:new x,y

 Set a new image of size x,y.

:noreset

keyword: if it is followed by dashed or filled, the following commands are dashed or filled, up to the command reset

:output [filename]

 Output the current image to [filename].

:parallel x1,y1,x2,y2,xv,yv,n,[color]

 n parallel segments starting from (x1,y1)---(x2,y2), with displacement (xv,yv).

:pixels [color],x1,y1,x2,y2,...

 Points (all of diameter 1) at (x1,y1), (x2,y2), ...

:plot [color],[formula]

curve

 Plot a curve according to [formula] which can be either an explicit function of x, or a pair of parametric functions in t.

:plotjump j

 Plotted curve will jump if two consecutive points have distance more than j pixels. Useful to avoid plotting discontinuous functions as continuous. Default value: 200.

:plotstep n

plotsteps tstep tsteps

 Set the number of point computations in curve plot. Defaults to 100.

:point x,y,[color]

 A (fat) point at (x,y), whose diameter is equal to linewidth.

:points [color],x1,y1,x2,y2,...

 (Fat) points at (x1,y1), (x2,y2), ..., whose diameters are equal to linewidth.

:polygon [color],x1,y1,x2,y2,x3,y3...

poly

 Polygon (x1,y1)-(x2,y2)-(x3,y3)...

:polyline [color],x1,y1,x2,y2,x3,y3...

brokenline

 n line segments (x1,y1)---(x2,y2)---(x3,y3)...

:range x1,x2,y1,y2

 Set the drawing range to [x1,x2] horizontally and [y1,y2] vertically. Note that by default, horizontal range is [0,xsize-1] and vertical range is [ysize-1,0].

:rays [color],x0,y0,x1,y1,x2,y2...

 Line segments (x0,y0)---(x1,y1), (x0,y0)---(x2,y2), ...

:rect x1,y1,x2,y2,[color]

 rectangle

 Rectangle with corners (x1,y1) and (x2,y2).

:reset

Keyword: reset the command "noreset"

:resetmatrix n

Reset n-th linear or affine transformation to identity.

:resetparallelogram

kill setparallelogram

:resetvector n

Reset n-th translation to identity.

:resettransform n

Reset n-th linear, affine transformation and n-th translation to initial values (identity or null vector).

:rotation d

 rotate

 Make a rotation of degree d counter-clockwise (centered at (0,0)), for the subsequent objects.

:segment x1,y1,x2,y2,[color]

 seg

 Line segment (x1,y1)---(x2,y2).

:segments [color],x1,y1,x2,y2,x3,y3,x4,y4, ...

Line segments (x1; y1)---(x2; y2), (x3; y3)---(x4; y4), ...

:setbrush [filename]

 Use the image [filename] as a brush for all line draws.

:setmatrix n,a,b,c,d

Make the n-th linear transformation for multicopy objects: (x;y) -> [a,b;c,d](x;y).

:setparallelogram xs,ys,xu,yu,xv,yv

Prepare the place where the image will be copied by multicopy (mathematical coordinates) : xs,ys mathematical coordinates of the origin point, xu,yu mathematical coordinates of the "horizontal line of the image" to copy, xv,yv mathematical coordinates of the "verticale line of the image" to copy.

:setpixel x,y,[color]

 A point (of diameter 1 pixel) at (x,y).

:setstyle [color1],[color2],...

 Set the line style to color1,color2,...

:settile [filename]

 Use the image [filename] as a tile for all filling commands.

:settransform n,a,b,c,d,tx,ty

Make the n-th linear transformation for multicopy objects: (x;y) -> [a,b;c,d](x;y) + (tx;ty). (settransform n,a,b,c,d,tx,ty is equivalent to setmatrix n,a,b,c,d and setvector n,tx,ty, so it kills a previous definition setmatrix n,a,b,c,d with the  same number n).

:setvector n,tx,ty

Make the n-th translation for multicopy objects: (x;y) -> (tx,ty).

:size x,y

 Set the image size to x pixels horizontally and y pixels vertically.

:square x,y,s,[color]

 Square with sides s (in pixels) and first corner at (x,y).

:text [color],x,y,[font],[string]

print string write

 Write the string at (x,y), with font=small,medium,large or giant.

:textup [color],x,y,[font],[string]

stringup writeup

 Write upwards the string at (x,y), with font=small,medium,large or giant.

:trange t1,t2

 ranget

 Set the t range to [t1,t2] for parametric curve plotting. Defaults to [0,1].

:translation tx,ty

translate

 Make a translation for the subsequent objects: (x;y) -> (x;y)+(tx;ty).

:transparent [color]

 Makes [color] a transparent color.

:triangle x1,y1,x2,y2,x3,y3,[color]

 Triangle with vertices (x1,y1),(x2,y2),(x3,y3).

:vimg n

 Enable (1) or disable (0) vector graphics output.

:vimgfile [filename]

 Direct vector graphics output (currently DXF only) to [filename].

:vline x,y,[color]

verticalline

 Vertical line through (x,y).

:xrange x1,x2

 rangex

 Set the horizontal drawing range to [x1,x2]. Defaults to [0,xsize-1].

:yrange y1,y2

 rangey

 Set the horizontal drawing range to [y1,y2]. Defaults to [ysize-1,0].