[ncl-talk] text res

[Geeta Geeta]

Thanks Alan and Mary for your help. 
Thanks Alan. I have tried your way of defining the colors. It worked but with some warnings. 
I am getting warning message because txFontColor is an integer while I am passing a string variable I guess. 
ariable: colors
Type: string
Total Size: 24 bytes
            6 values
Number of Dimensions: 1
Dimensions and sizes:    [6]
Coordinates: 
Number Of Attributes: 1
  _FillValue :    missing
(0)    Red
(1)    
(2)    Blue
(3)    Red
(4)    Yellow
(5)    
fatal:CvtStringToColorIndex: Unable to convert string "" to requested type
warning:Error retrieving resource txFontColor from args - Ignoring Arg
fatal:CvtStringToColorIndex: Unable to convert string "" to requested type
warning:Error retrieving resource txFontColor from args - Ignoring Arg
aditya at agniilap:~/geeta/ncl$ Pls clarify this Point (txFontColor = integer)

Mary the script runs fine.  Thank you. 
I did not intend to send a message to you directly but since many tabs were open. It happened by mistake. 

Thanks Geeta. 


     On Tuesday, 20 October 2015 12:32 AM, Mary Haley <haley at ucar.edu> wrote:
   

 Geeta,
Please email all follow-up questions to ncl-talk at ucar.edu, and do not send them to me directly.
You need to group the text strings by the color you want to render them in.  So, you should be looping across the number of ranges you have, and not each value. Your code would look something like this:
  range_bot = (/   0.1,   2.5,      7.5/)  range_top = (/   2.5,   7.5,     15.5/)  colors    = (/"Blue", "Red", "Green"/)  nranges   = dimsizes(range_bot); 
; Loop through each range and get the indices of                                     ; all the values that fall in this range. These                                       ; are the values that should be drawn in the given                                   ; ; color.;                                                                                      do n=0,nranges-1    ii := ind(rf.ge.range_bot(n).and.rf.lt.range_top(n))    if(.not.any(ismissing(ii))) then      txres at txFontColor = colors(n)     ; set the color for this range      unqstr = unique_string("text")    ; generate a unique id for text object      plot@$unqstr$ = gsn_add_text(wks,plot," "+sprintf("%9.4g",rf(ii)), \                                       lon(ii),lat(ii),txres)    end if  end do

See the attached script, which is based on your script, but using random data.
--Mary

On Mon, Oct 19, 2015 at 11:02 AM, Geeta Geeta <geetag54 at yahoo.com> wrote:

 Hi Mary. 
I have tried three things for giving a range to the rainfall. Pls see the lines 91 to 110 of my script. 



1.  I tried the following. 

1. print(nrf)
     92   colors = where(((rf.ge.0.1).and.(rf.lt.2.5)),"Blue","   ")  ; This is a string variable
     93   colors = where(((rf.ge.2.5).and.(rf.lt.7.5)),"Red","   ")
     94 ;  colors = where(((rf.ge.7.5).and.(rf.lt.15.5)),"Yellow","   ")
     95 ;  colorss= stringtoint(colors)
     
2nd Method in which I have defined the colors as an array. So there is error on line 106. Also this will give an individual color to each data. 
Variable: colors
Type: integer
Total Size: 16 bytes
            4 values
Number of Dimensions: 1
Dimensions and sizes:    [4]
Coordinates: 
(0)    1
(1)    21
(2)    41
(3)    61
fatal:Subscript out of range, error in subscript #0
fatal:An error occurred reading colors
fatal:["Execute.c":8578]:Execute: Error occurred at or near line 106 in file stn-v3.ncl

aditya at agniilap:~/geeta/ncl$ 

can U pls suggest???I also tried combining two statements with where but that did not work. 
 Geeta. 

Geeta.



  
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