Log Y-Axis

From: Bernard Miville (acrnrbm@XXXXXX)
Date: Thu May 31 2001 - 14:45:51 MDT


Hi,

I am using LLU to do contours. I need to have the Y-Axis on a
Logaritmic scale. I tried the following:

      CALL SETUSV('LS',2)

      and

      CALL SET (0.,1.,0.,1.,0.,1.,0.,1.,2)

none worked for me.

With SETUSV('LS',2) it removes my label on both axis and removes the
thick marks on the Y-axis and puts a 10 on top. The data contours are
unaffected.

To contour I am using:

      CALL ARINAM (IAMA,800000)
      CALL CPRECT (ZREG,M,M,K,RWRK,10000,IWRK,12000)
      CALL CPLBAM (ZREG,RWRK,IWRK,IAMA)
      CALL CPCLDM (ZREG,RWRK,IWRK,IAMA,CPDRPL)
      CALL CPLBDR (ZREG,RWRK,IWRK)

the axis mapping:

      CALL CPSETR ('XC1 - X COORDINATE AT I=1',X1)
      CALL CPSETR ('XCM - X COORDINATE AT I=M',XM)
      CALL CPSETR ('YC1 - Y COORDINATE AT J=1',Y1)
      CALL CPSETR ('YCN - Y COORDINATE AT J=N',YN)

and for labeling the axis:

      CALL GASETI('LTY',1)
      CALL GASETI('WLB',2)
      CALL LABMOD ('(I4)','(I4)',0,0,10,10,0,0,0)
      CALL GRIDAL (5,5,4,4,1,1,5,0.,0.)

all the contour levels and text labels have been set up prior to these
calls. I works fine for linear to linear but the log scaling does not work
for me.

By scaling the Y axis to log will the data contour follow or it only
changes the "look" of the Y-axis?

What am I doing wrong?

Any help would be appreciated.

Thank you

Bernard

-- 
----------------------------------------------------------------------
 Bernard Miville - Meteorologist                       
 Canadian Centre for Climate        Phone: 1-250-363-3347
 Modelling and Analysis (CCCMA)     Fax:   1-250-363-8247 
 Meteorological Service of Canada   E-mail: Bernard.Miville@ec.gc.ca 
 University of Victoria             Web: http://www.cccma.bc.ec.gc.ca
 Post:                              Courier: 
   P.O. Box 1700                      3964 Gordon Head Road, #283 
   Victoria, B.C. V8W 2Y2             Victoria, B.C. V8N 3X3
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