Transform 2-dimensional coordinates astTran2
"
npoint"
X-coordinate values
for the input (untransformed) points. "
npoint"
Y-coordinate
values for the input (untransformed) points. ’
s forward coordinate transformation is to be applied, while a zero
value indicates that the inverse transformation should be used. "
npoint"
elements) into which the X-coordinates of the output (transformed)
points will be written. "
npoint"
elements) into which the
Y-coordinates of the output (transformed) points will be written. "
8-byte"
interface for this function should be used. This alternative interface uses 8
byte integer arguments (instead of 4-byte). Specifically, the argument "
npoint"
, is
changed from type "
int"
to type "
int64_t"
(defined in header file stdint.h). The
function name is changed by appending the digit "
8"
to the name. Thus, astTran2
becomes astTran28