round off numbers?

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Permalink Reply by David Rutten on March 30, 2010 at 8:45am

Hi Chris,

if you want to round to whole numbers, just reroute your numbers through an Integer parameter. If you want to round to a specific number of decimal places, then you'll need to use an Expression. Either insert an Expression component or add an Expression to any number parameter.

If your number parameter is called "Num", then the expression should be: Round(Num, 3) in order to round to 3 decimal places.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

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Permalink Reply by Chris on March 30, 2010 at 8:47am

Oh fantastic, thats exactly it!

thanks

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Permalink Reply by User on May 26, 2011 at 1:32am

Hi,
I need to round off to 5 (15, 20, 25, etc.). I have many results and I fixed Min and Max value and the parameter Integer at the end, but I need also numbers running in step of 5. Which expression I need to use?

thanks

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Permalink Reply by Danny Boyes on May 26, 2011 at 2:30am

Divide by 5 pass through an Integer Param and then Multiply by 5

 

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Permalink Reply by User on May 26, 2011 at 3:16am

Thanks a lot!

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Permalink Reply by Danny Boyes on May 26, 2011 at 3:43am

I thought this might make a useful GH_User component so here is. It includes Floor and Ceiling functionality like the existing Rounding component.

Just drag the file on to the canvas and GH will do the rest.

Attachments:

• Step Rounding.ghuser, 7 KB

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Permalink Reply by Danny Boyes on July 18, 2011 at 6:22am

What version are you using?

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Permalink Reply by Tim Crawshaw on August 17, 2012 at 7:33am

Dave

 

How do you get grasshopper to ROUNDUP or ROUNDDOWN.... this works in other software such as Revit but I can't seem to find the correct code (or maybe it doesn't exist)

 

thanks

 

t

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Permalink Reply by Danny Boyes on August 17, 2012 at 7:38am

There is a Round component in the Maths Tab > Utility Panel which has three outputs

N = normal, 4.3 --> 4 & 4.6 --> 5

F = Floor, 4.3 --> 4 & 4.6 --> 4

C = Ceiling, 4.3 --> 5 & 4.6 --> 5

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Permalink Reply by Aleksandar Dimitrov on January 3, 2013 at 10:16am

thanks also from my side :)

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Permalink Reply by Eric Werner on March 30, 2010 at 8:48am

Hi Chris,

You can do this easily by making a function that formats doubles

Private Sub RunScript(ByVal x As Double, ByRef A As Object, ByRef B As Object)
' You can do it by chopping the numbers off like below
A = Format(x, "#.0")

' or by rounding the numbers like below..
B = Math.Round(x, 3, MidpointRounding.AwayFromZero)

End Sub

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Permalink Reply by Chris on March 30, 2010 at 9:44am

thanks Eric excellent

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