CCG_WCWIx - Creates a channel-width array from the channel co-ordinates

Description:

This routine accepts an array consisting of a series of (vectorised) lines of co-ordinates. For each pixel the subroutine forms a channel width by halving the difference of neighbouring co-ordinates along a line of data, i.e. it assumes that therre are no gaps. The widths for first and last pixels are the difference with its interior neighbour.

Invocation:

CALL CCG_WCWIx( NPIX, NLINES, COORDS, WIDTHS, STATUS )

Arguments:

NPIX = INTEGER (Given)

The number of pixels in a line of data.

NLINES = INTEGER (Given)

The number of lines of data in the stack.

COORDS( NPIX, NLINES ) = ? (Given)

The world co-ordinates.

WIDTHS( NPIX, NLINES ) = ? (Given)

The chanel widths.

STATUS = INTEGER (Given and Returned)

The global status.

Notes:

• There is a routine for each numeric data type: replace "x" in the routine name by D or R as appropriate. The COORDS and WIDTHS arguments supplied to the routine must have the data type specified.