The scale command takes a plot structure and produces a new plot structure scaled by the specified values with respect to the center (pt_2d for the 2-D case or pt_3d for the 3-D case). If pt_2d or pt_3d is not specified, the default center is at the origin.

The inputs p or q must be two- or three-dimensional plot data structures or objects, while a, b, and c are real numbers representing the scale factors in the x, y and z directions.

The result of a call to scale is a PLOT or PLOT3D data structure or object containing information to render the plot. You can assign the data structure to a variable, save it in a file, then read it back in for redisplay.  For more information about plot data structures, see plot/structure.

Several commands in the plottools package can transform plots. For a list, see the plottools help page.  The plots:-changecoords and plots:-display commands can also be used to transform plots.

$\mathrm{with}\left(\mathrm{plottools}\right)\:$

$\mathrm{with}\left(\mathrm{plots}\right)\:$

$p≔\mathrm{plot}\left(\left[\sin \left(x\right)\,x\,x=0..2\mathrm{\pi }\right]\right)\:$

$s≔\mathrm{scale}\left(p\,2\,3\right)\:$

$\mathrm{display}\left(p\,s\right)$

$q≔\mathrm{plot3d}\left(\sin \left(x+y\right)\,x=-1..2\mathrm{\pi }\,y=0..\mathrm{\pi }\right)\:$

$s≔\mathrm{scale}\left(q\,3\,1\,\frac{1}{2}\right)\:$

$\mathrm{display}\left(q\,s\,\mathrm{axes}=\mathrm{frame}\,\mathrm{lightmodel}=\mathrm{light2}\,\mathrm{orientation}=\left[-100\,65\right]\,\mathrm{shading}=\mathrm{zgrayscale}\,\mathrm{style}=\mathrm{patchnogrid}\right)$

$c≔\mathrm{circle}\left(\left[0\,0\right]\,2\right)\:$

$\mathrm{display}\left(c\,\mathrm{scale}\left(c\,\frac{1}{3}\,\frac{1}{3}\right)\,\mathrm{color}=\mathrm{blue}\,\mathrm{scaling}=\mathrm{constrained}\right)$