pltr0
( | x, |
y, | |
tx, | |
ty, | |
pltr_data) ; |
Identity transformation for grid to world mapping.
This routine can be used both for plcont
and plshade
.
See also the section called “Contour Plots from C” and
the section called “Shade Plots from C”.
x
(PLFLT
, input)
X-position in grid coordinates.
y
(PLFLT
, input)
Y-position in grid coordinates.
tx
(PLFLT *
, output)
X-position in world coordinates.
ty
(PLFLT *
, output)
Y-position in world coordinates.
pltr_data
(PLPointer
, input)
Pointer to additional input data that is passed as an argument
to plcont
or plshade
and then on to the grid to world
transformation routine.
This function is currently available in C, C++, Ocaml, Perl, Python and Tcl.
This function is not used in any examples.