Mapping polar regions

Dear GMTers,
I'm trying to plot the polar view of some mathematical functions and I'm
having trouble plotting them. Following is the code I used

-----+ GMT version 5.1.2 r12977 +----------

CPT="seeget.cpt"
makecpt -Crainbow -T-0.2/1/0.1 -I > $CPT

# Method 1
xyz2grd dspole.xyz -Gdspolexyz.grd -I1 -R-180/180/0/30 -V
grdimage dspolexyz.grd -JPa2i -R0/360/0/30 -C$CPT -P -Xc -Yc -V > dspolep.ps

# Method 2
grdreformat dspole.asc=ef dspole.grd -V
grdproject dspole.grd -Gdspolestereo.grd -Js0/90/1:2e8 -R-180/180/60/90g
-E300 -V
grdimage dspolestereo.grd -JS0/90/2i -C$CPT -P -Xc -Yc -V > dspole.ps

-------+ end +-----------------------------

I'm not sure if I 'm doing things right here. The former method provides
me pixellated results even if I use a 0.05 degree resolution grid.
The latter method gives me the results that I want to some extent, but
still I'm not able to  generate the desired result 'dstrplat0.pdf'.

Long story short: What is the best way to plot smooth polar plots?

Any help with this is appreciated!

Regards,
D. Balaji





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