[hobbit] zoom graph feature

[Galen Johnson]

Henrik Stoerner wrote:
> In <45BED60F.9030805 at trantor.org> Galen Johnson <gjohnson at trantor.org> writes:
>
>   
>> I think this has come up previously but I don't recall seeing a 
>> response...but how hard would it be to have the Zoom Graph function set 
>> the graph max to more accurately reflect the height of the block you 
>> select...ie, if I have a low load and I select a max height of around .2 
>> when I drag my box, could the max on the new zoom be .2 instead of 1.0?
>>     
>
> First of all, it would require that you're using version 1.2.x of the RRDtool
> library. I guess it's safe to upgrade now, but back when I was putting the 
> zoom stuff together, rrdtool 1.2 wasn't quite stable.
>
> rrdtool 1.0 simply doesn't provide the information about the value range 
> on the y-axis that is needed to implement the zoom. Tobi Oetiker who maintains
> the rrdtool library added this in 1.2 at my suggestion :-)
>
> I'll look at reviving some old code I had to implement this. It requires some 
> changes to both the hobbitgraph CGI and the zoom.js javascript code.
>
>
> Regards,
> Henrik
>
>
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>   
Sweet, I'm already using 1.2 so that'd be awesome if you could.

=G=