pltr0
( | x, |
| y, | |
| tx, | |
| ty, | |
pltr_data); |
Identity transformation for matrix index to world coordinate mapping. This routine
can be used for the PLTRANSFORM_callback argument of plcont,
plshade, plshades, plimagefr, or plvect.
x
(PLFLT, input)
X index of matrix.
y
(PLFLT, input)
Y index of matrix.
tx
(PLFLT_NC_SCALAR, output)
Transformed x value in world coordinates corresponding to x index of matrix.
ty
(PLFLT_NC_SCALAR, output)
Transformed y value in world coordinates corresponding to y index of matrix.
pltr_data
(PLPointer, input)
A pointer to additional data that is passed as an
argument to PLplot routines that potentially could use the pltr0
callback (i.e., plcont, plimagefr, plshade,
plshades, and plvect); which then internally pass that argument on
to this callback.
This function is not used in any of our C examples.