A rounding UDF:
http://www.cflib.org/udf.cfm?ID=136
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Raymond Camden, Principal Spectra Compliance Engineer for Macromedia
Email : [EMAIL PROTECTED]
Yahoo IM : morpheus
"My ally is the Force, and a powerful ally it is." - Yoda
> -----Original Message-----
> From: Snyder, Jason [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, August 22, 2001 3:17 PM
> To: CF-Talk
> Subject: Rounding to significant digits
>
>
> I am running ColdFusion server 5.0 and when flipping through the
> docs I do not see any Math functions to round to a particular
> number of significant digits. Plus on Allaire's site I know
> about the custom tag gallery, but I do not see a UDF (user
> defined function) gallery. Then when I searched the archives on
> the list I did not find any mentions of this issue. (I used the
> keywords 'significant digit.')
>
> I could use something like this for my graphs using CFGRAPH. To
> make the grid lines on a bar chart to be at even numbers I
> currently have things set up to figure out the number of lines
> based on a multiple and the max based on the same multiple. (So
> for example instead of having grid lines at 173.43, 192.53, etc,
> I may have a set multiple of 20 and have grid lines at 160, 180,
> etc.) Seeing that the user can enter in their own criteria and
> dynamically build a graph that can have a very wide range of
> possible max sizes I would like to have that multiple based on
> the max bar size over the target number of grid lines plus 1
> [RSgFig(MaxBS/TGLP1, 1) and round to one digit of significance
> out of the results. So for example if maximum bar size is 13 and
> my target number of grid lines is 7 it
> would space the grid lines apart by 2. If the maximum bar size
> is 768 and the target number of grid lines is 10 it would space
> the grid lines apart by 70.
>
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