astMatchAxesastMatchAxes - Find any corresponding axes in two Frames

Description:
This function looks for corresponding axes within two supplied Frames. An array of integers is returned that contains an element for each axis in the second supplied FrameFrame. An element in this array will be set to zero if the associated axis within the second Frame has no corresponding axis within the first Frame. Otherwise, it will be set to the index (a non-zero positive integer) of the corresponding axis within the first supplied Frame.
Synopsis:
void astMatchAxes( AstFrame $*$frm1, AstFrame $*$frm2, int $*$axes )
Parameters:
frm1
Pointer to the first Frame.
frm2
Pointer to the second Frame.
axes
Pointer to an integer array in which to return the indices of the axes (within the first Frame) that correspond to each axis within the second Frame. AxisAxis indices start at 1. A value of zero will be stored in the returned array for each axis in the second Frame that has no corresponding axis in the first Frame.

The number of elements in this array must be greater than or equal to the number of axes in the second Frame.

Class Applicability:
Frame
This function applies to all Frames.
Notes:
  • Corresponding axes are identified by the fact that a MappingMapping can be found between them using astFindFrameastFindFrame or astConvertastConvert. Thus, "corresponding axes" are not necessarily identical. For instance, SkyFrameSkyFrame axes in two Frames will match even if they describe different celestial coordinate systems