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

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

 This command is only available for WIMS OEF and doc, and MUST appear on the first line. 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.

 This command is only available for WIMS OEF and doc, and MUST appear on the first line. 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

: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.

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

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

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

:circle x,y,d,[color]

:circle x,y,d,[color]

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

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

:comment

:comment

 Does nothing.

 Does nothing.

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

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

 insert

 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.

 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]

: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.

 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.

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

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

 dasharrow dashedarrow

 dasharrow dashedarrow

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

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

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

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

 dasharrow2 dashedarrow2

 dasharrow2 dashedarrow2

dashedhorizontalline dashhorizontalline hdline horizontaldashedline

dashedhorizontalline dashhorizontalline hdline horizontaldashedline

  Dashed horizontal line through (x,y).

  Dashed horizontal line through (x,y).

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

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

 diafill

 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).

 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).

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

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

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

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

 dashedlines dashlines

 dashedlines dashlines

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

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

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

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

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

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

:levelstep n

:levelstep n

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

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

:linear a,b,c,d

:linear a,b,c,d

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

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

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

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

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

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

:linewidth w

:linewidth w

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

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

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

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

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

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

:range x1,x2,y1,y2

: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].

 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...

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

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

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

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

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

 rectangle

 rectangle

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

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

:resetmatrix n

:resetmatrix n

Reset n-th linear or affine transformation to identity.

Reset n-th linear or affine transformation to identity.

:resetparallelogram

:resetparallelogram

kill setparallelogram

kill setparallelogram

:resetvector n

:resetvector n

Reset n-th translation to identity.

Reset n-th translation to identity.

:resettransform n

:resettransform n

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

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

:rotation d

:rotation d

 rotate

 rotate

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

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

:setbrush [filename]

:setbrush [filename]

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

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

:setmatrix n,a,b,c,d

:setmatrix n,a,b,c,d