"VCS" module produces missing values?

[leiduan4320]

Dear all,

I am using cdat8 "VCS" module to plot a map. My data has a horizontal resolution of 192 latitude by 288 longitude;

I only want to show part of the may, so I wrote in my script:

v=vcs.init(); v.setcolormap('rainbow_no_grn') color_map=v.getisofill('quick') print color_map.list() color_map.projection = 'linear' color_map.datawc_x1= -20 color_map.datawc_x2= 50 color_map.datawc_y1= -50 color_map.datawc_y2= 50

However, "VCS" shows no value between longitude -1.25 to 0 (plot attached). Is there any way to fix this problem?

Best