plstransform
( | coordinate_transform , |
coordinate_transform_data
) ; |
This function can be used to define a coordinate transformation
which affects all elements drawn within the current plot window. The
callback function is similar to that provided for the coordinate_transform
plmap
and plmeridians
functions. The
parameter may be used to pass extra data to
coordinate_transform_data
.coordinate_transform
coordinate_transform
(PLTRANSFORM_callback
, input)
A callback function that defines the transformation from
the input (x, y) world coordinates to new PLplot world coordinates. If
coordinate_transform
is not supplied (e.g., is
set to NULL in the C case), then no transform is applied.
coordinate_transform_data
(PLPointer
, input)
Optional extra data for
.
coordinate_transform
Redacted form:
General: plstransform(coordinate_transform, coordinate_transform_data)
This function is used in examples 19 and 22.