SYNTAX

#include "las.h"

FUNCTION c_rtiddr(inddr,rot)

     struct DDR         *inddr;
     long               *rot;

PARAMETERS

inddr (input/output, struct DDR)

Input DDR structure to be updated

rot (input, integer)

Rotation amount in 90 degree increments:

          = 1:   90 degrees
          = 2:  180 degrees
          = 3:  270 degrees
          = 4:  Horizontal flip
          = 5:  Vertical flip

DESCRIPTION

The c_rtiddr() call is used to update the projection information in a DDR structure for rotations of 90 degree increments (ie. 90, 180, 270) and for horizontal and vertical flips.

RETURN VALUE

c_rtiddr() returns

     E_SUCC (0)  --> successful completion
     E_FAIL (-1) --> operation failed