Description Objects from the Class Slots Methods Note Author(s) Examples
As display of /gn/s is performed from a $R^3$ perspective, then /pos/ was issued to commonly define the projection into $R^2$ (paper, screen).
Objects can be created by calls of the form new("pos")
and
modified with rsba3k
function.
posi
:Object of class "matrix"
: each row is
associated to a node; columns are the three coordinates and a
decoration code for the node; then a nbnx4 matrix.
view
:Object of class "numeric"
: the two
angles (in grades ?) for the projection into $R^2$. (0,0) means the
use of (x,y).
zoom
:Object of class "numeric"
: four values:
center point after normalization on [-1,+1] instead of [min,MAX]
and the the magnifying factor for both coordinates. (0,0,0,1)
implies the standard fitted view.
See print8pos
for the details.
~~further notes~~
J.-B. Denis
1 | showClass("pos")
|
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