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Force increment step in parameter

Dimitris Kar

Hi,

 

I am trying to force the minimum increment in parameters that user defines.

 I managed to implement the min max to force the limits of my parameter (i.e. if 3<=x<=10, I write x=max(x 3)   x=min(x 10))

 I can not find the correct expresion on setting the acceptable step i.e. if the grid is 0.1, then values of x.xxx are not accepted.

 

An suggestions will be warmly welcomed!

 

Many thanks!

 

BR,

Parents
  • Dimitris Kar

    Hi Andrew, 

     

    Say I am giving a parameter via the following code ( shown partialy for reasons of space): 

    ;o------------------------------------------------o;

    cdfCreateParam( cdfId
          ?name     "x"
          ?prompt   "Length"
          ?defValue  3.0
          ?type     "float"
          ?display  "t"
        )

     ;o------------------------------------------------o;

     

    now, in my pCell definition, I have put the upper and lower limit of x

     

    but, what I am missing, is how I can force the limits to be displayed in the parameters form of the pcell when the user exceeds them and how I will also force the grid increment to the input value and its display in the field. 

     

    Now, after a bit of searching I came up with two lines of code for the OnGrid routine: 

    r= 10**-log10(grid)

    round((x*r))/float(r)

     

    which makes my question easier: How to I display the   OnGrid WithinLimits value if the user is violating these rules?

     

    In example: 

     

    say 3<=x<=10

    and grid=0.05

     

    then the user inputs 

     

    Length     4.032

     

    I want to show immediately the value

     Length   4.05

     

    in another case, if user inputs 

     

    Length 2.33

     then field becomes 

    Length 3

     

    Do you have any suggestions? I understand this should be quite triavial but, unfortunatelly can not find the correct approach...

     

    Many thanks! 

     

    D.

Reply
  • Dimitris Kar

    Hi Andrew, 

     

    Say I am giving a parameter via the following code ( shown partialy for reasons of space): 

    ;o------------------------------------------------o;

    cdfCreateParam( cdfId
          ?name     "x"
          ?prompt   "Length"
          ?defValue  3.0
          ?type     "float"
          ?display  "t"
        )

     ;o------------------------------------------------o;

     

    now, in my pCell definition, I have put the upper and lower limit of x

     

    but, what I am missing, is how I can force the limits to be displayed in the parameters form of the pcell when the user exceeds them and how I will also force the grid increment to the input value and its display in the field. 

     

    Now, after a bit of searching I came up with two lines of code for the OnGrid routine: 

    r= 10**-log10(grid)

    round((x*r))/float(r)

     

    which makes my question easier: How to I display the   OnGrid WithinLimits value if the user is violating these rules?

     

    In example: 

     

    say 3<=x<=10

    and grid=0.05

     

    then the user inputs 

     

    Length     4.032

     

    I want to show immediately the value

     Length   4.05

     

    in another case, if user inputs 

     

    Length 2.33

     then field becomes 

    Length 3

     

    Do you have any suggestions? I understand this should be quite triavial but, unfortunatelly can not find the correct approach...

     

    Many thanks! 

     

    D.

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