Coordinates transforms:

`isoview`

: isometric scale without window changeallows an isometric scale in the window of previous plots without changing the window size:

t=(0:0.1:2*%pi)'; plot2d(sin(t),cos(t)); xbasc() isoview(-1,1,-1,1); plot2d(sin(t),cos(t),-1,'001');

`square`

: isometric scale with resizing the windowthe window is resized according to the parameters of the command.

`scaling`

: scaling on data`rotate`

: rotation`scaling`

and`rotate`

executes respectively an affine transform and a geometric rotation of a 2-lines-matrix corresponding to the`(x,y)`values of a set of points.`xgetech, xsetech`

: change of scale inside the graphic windowThe current graphic scale can be fixed by a high level plot command. You may want to get this parameter or to fix it directly : this is the role of

`xgetech, xsetech`

.`xsetech`is a simple way to cut the window in differents parts for different plots :t=(0:0.1:2*%pi)'; xsetech([0.,0.,0.6,0.3],[-1,1,-1,1]); plot2d(sin(t),cos(t)); xsetech([0.5,0.3,0.4,0.6],[-1,1,-1,1]); plot2d(sin(t),cos(t));