# [ncl-talk] Cartesian coordinate plotting

Md. Jalal Uddin dmjalal90 at gmail.com
Fri Jul 19 01:53:48 MDT 2019

```Hi all,

I set a Cartesian coordinate (x,y) below.

pi       =   3.141593
deg2rad  =  pi/180.

earth_radius = 6371.

r = ispan(0,300,10)
theta  = ispan(0,360,10)

x =
conform_dims((/dimsizes(r),dimsizes(theta)/),r,0)*cos(conform_dims((/dimsizes(r),dimsizes(theta)/),theta,1)*deg2rad)
y =
conform_dims((/dimsizes(r),dimsizes(theta)/),r,0)*sin(conform_dims((/dimsizes(r),dimsizes(theta)/),theta,1)*deg2rad)

;printVarSummary(x)                ; [31] x [37]
;printVarSummary(y)                ; [31] x [37]

My precipitation data within 300 Km from the center lat and lon.
cen_avg  = dim_avg_n_Wrap(time_avg,0)    ;[radius | 31] x [circle | 180]

How can I conform to cen_avg data as x, y and plot? Full code in the
attached file?

;Jalal

--
*Md. Jalal Uddin*
MSc in Applied Meteorology
Nanjing University of Information, Science and Technology, China
B.Sc. in Disaster Management (Hons.)
Patuakhali Science and Technology University, Bangladesh.
Cell: +8613260859092, +8801792052662
Web: www.dmjalal90.weebly.com
Facebook: jalal.hossen.39
LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
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