Aligning Vector Maps with Other Images

If you are using KAPPA V0.13 or later, and have an image containing a calibration in a suitable celestial co-ordinate system, then you can plot the polarization vectors in alignment with the image. If you follow the procedure described here, then the vectors will be aligned automatically with the image. One niggle to watch out for is that both DISPLAY and POLPLOT draw annotated axes, potentially resulting in a bit of a mess! You should normally disable the production of one set of axes by setting parameter AXES to ``NO'' when running either DISPLAY or POLPLOT.