[gradsusr] plotting a circle with a center and a defined radius in grads

[Lyndon Mark Olaguera]

Hi all,

I'd like to plot a point in grads and I want to add an enclosing circle
with a defined radius. I was able to add a circle, but the radius is not
correct. any ideas how to do this? what is the dimension of "csize" in
grads?

here's my script

'open rm1station_final.ctl'
'set display color white'
'c'
'set mpdset hires'
'set clevs 0 1'
'set ccols 0 '
'd landmask'

clon=121.02722
clat=14.57306
degrees=0.03

*makati02 station
'q w2xy 'clon' 'clat
  x1 = subwrd(result,3)
  y1 = subwrd(result,6)

 radlon=clon+degrees

'q w2xy 'radlon' 'clat
  x2 = subwrd(result,3)
  y2 = subwrd(result,6)

csize=(x2-x1)
'draw mark 3 'x1' 'y1' 'csize

'printim station_locations.png'
'quit'


*Lyndon Mark P. Olaguera*
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