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Description:
This function
permutes the order in which a
Frame’
s axes occur.
Synopsis
void astPermAxes( AstFrame
this,
const int perm[] )
Parameters:
this
Pointer to the Frame.
perm
An array with
one element for each axis of the Frame (
Naxes attribute). This should list the axes in
their new order, using the original axis numbering (which starts at 1 for the first
axis).
Notes:
-
Only genuine permutations of the axis order are permitted, so each axis must be
referenced exactly once in the "
perm"
array.
-
If successive axis permutations are applied to a Frame, then the effects are
cumulative.
Copyright (C) 2021 East Asian Observatory
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A Library for Handling
World
Coordinate Systems
in Astronomy - Next→
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