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  • 0

truncating string in VD - looking for some assistance !!


Question

Posted

Hi,

I searched the forum and some other lua references and couldn't find how to do this.

 

I have a very simple VD that reads several temperatures and displays them in a number of VD labels

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I am looking to round/truncate the value displayed to 2 decimal places

Currently it is displaying 9 or 10

 

any help and tips appreciated

 

Thanks

-F

 

 

 

8 answers to this question

Recommended Posts

  • 0
Posted

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Try that, have not tested it but should work.

  • 0
Posted

Agree with @jompa68, but maybe a small addition. If you want to use the truncated result, for instance in another formula (so not just truncated the display but also the variable) you can use something like:

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Possibly add ".5" to use the standard rounding rule.
  • 0
Posted

The generic function for Peter's solution:

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num = number to truncate

idp = number of decimals to be returned

  • 0
  • Inquirer
  • Posted

    thanks everybody - I'll give those a shot later this evening....

    • 0
  • Inquirer
  • Posted

    Please login or register to see this code.

    Try that, have not tested it but should work.

     

     

    Tried that quickly

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    and this is what its returning in the VD label

     

     

    Hall    22.100000000000001

     

    Am I missing something ?

    • 0
    Posted

    Try this

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    • 0
    Posted

    Hi,

     

    It is a bug, already reported it in bugzilla

     

    Try using a space or C like:

     

    fibaro:call(thisId, "setProperty", "ui.temp1.value",fibaro:getValue(871, "value").." ");

    or

    fibaro:call(thisId, "setProperty", "ui.temp1.value",fibaro:getValue(871, "value").." C");

    • 0
  • Inquirer
  • Posted

    Hi,

     

    It is a bug, already reported it in bugzilla

     

    Try using a space or C like:

     

    fibaro:call(thisId, "setProperty", "ui.temp1.value",fibaro:getValue(871, "value").." ");

    or

    fibaro:call(thisId, "setProperty", "ui.temp1.value",fibaro:getValue(871, "value").." C");

     

    Perfect, the space worked a treat - thanks

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