IDL画图问题

chaotuo

我想在用另外一个一个颜色表填充到另外一个范围的等值线内，该怎么操作

chaotuo

FNAME = OLOC+'UofTentoSixty.ps'

!P.FONT = 0
ENTRY_DEVICE = !D.NAME
SET_PLOT, 'PS'
DEVICE, FILENAME=FNAME, /COLOR, /HELVETICA, /BOLD, BITS_PER_PIXEL=8, /LANDSCAPE
lon0=0
lon1=360
lat0=5
lat1=65
;map_set,0,180,/mercator,limit=[lat0,lon0,lat1,lon1],position = [0.1, 0.35, 0.9, 0.6];,/noerase,/noborder;,$
   index_valid = WHERE(u1 GE 20, count_valid)
   min_value = MIN(u1[index_valid])
   levels=[19.99,20,25,30]
   nlevels=n_elements(levels)
   ncolors=nlevels
   bottom=1
   c_labels=[0,1,1,1]
   ;c_labels=[0,replicate(1,nlevels)]
   c_colors=indgen(ncolors)+bottom
   loadct,22,ncolors=ncolors,bottom=bottom
   map_set,0,180,/mercator,limit=[lat0,lon0,lat1,lon1],position = [0.1, 0.35, 0.9, 0.6];,/noerase,/noborder;,$
   contour,u1,longitude,latitude,levels=levels,c_colors=c_colors,/fill,/overplot
   contour,u1,longitude,latitude,levels=levels,c_labels=c_labels,c_thick=1,/overplot
   ;levels=[-30,-25,-20]
   ;nlevels=n_elements(levels)
   ;ncolors=nlevels
   ;c_labels=[1,1,1]
   ;c_colors=indgen(ncolors)
   ;loadct,21,ncolors=ncolors
   ;c_labels=[1,1,1]
   ;c_colors=250
   ;contour,u1,longitude,latitude,levels=levels,c_colors=c_colors,/overplot,/fill
   ;contour,u1,longitude,latitude,levels=levels,c_labels=c_labels,c_thick=1,/overplot
  map_continents,/continents,/countries
;print,max(u1),min(u1)
map_grid,lons =[0,30,60,90,120,150,180,210,240,270,300,330,360 ],lats = [10, 25, 40, 55 ],londel = 13, latdel = 3,/box;,charsize = 1.2

device, /close_file
set_plot, entry_device
  end

chaotuo

兄弟姐妹们教教我

徐徐清风

你可以按自己需求自定义一个颜色表
https://malagis.com/idl-color-table.html

chaotuo

徐徐清风 发表于 2020-5-11 09:27
你可以按自己需求自定义一个颜色表
https://malagis.com/idl-color-table.html

谢谢您 ，我尝试一下