Retina sized RRD Graph Images

[lohmeyer]

Hi,

I would like to know if it is possible to generate the RRD graphs in higher resolution so that they look sharp on scaled high-resolution displays. I came across the rrdtool option "zoom=2" somewhere. Is it possible to configure somewhere in Cacti to use this option and if so where? Would this cause any problems?

Thanks and best regards

[TheWitness]

Just Edit the Graph Templates and switch the size. Make sure you are using SVG graphics too. You can do it in one fell-swoop too. Select all the Graph Templates and then Select 'Change Settings' from the Drop-down and press 'Go'. If you want larger font sizes, consider modifying the selected Cacti Theme's RRDtool specific settings.

[TheWitness]

In every theme directory <path_cacti>/include/themes/<themename> there is a file called rrdtheme.php. You can edit that file. It'll look something like the following the data below. You can change the defaults there. When you scale down the graphs via the number of columns or thumbnail view, Cacti scales down the fonts too.

Code: Select all

$rrdcolors['back']   = 'F3F3F3';
$rrdcolors['canvas'] = 'FDFDFD';
$rrdcolors['shadea'] = 'CBCBCB';
$rrdcolors['shadeb'] = '999999';
#$rrdcolors['grid']   = 'C4C4C4';
#$rrdcolors['mgrid']  = '1A1C1C';
$rrdcolors['font']   = '000000';
$rrdcolors['axis']   = '2C4D43';
$rrdcolors['arrow']  = '2C4D43';
$rrdcolors['frame']  = '2C4D43';

# RRDtool graph fonts in RRDtool 1.2+
$rrdfonts['title']['font']     = 'Arial';
$rrdfonts['title']['size']     = '11';
$rrdfonts['axis']['font']      = 'Arial';
$rrdfonts['axis']['size']      = '8';
$rrdfonts['legend']['font']    = 'Courier';
$rrdfonts['legend']['size']    = '8';
$rrdfonts['unit']['font']      = 'Arial';
$rrdfonts['unit']['size']      = '8';
$rrdfonts['watermark']['font'] = 'Arial';
$rrdfonts['watermark']['size'] = '6';

# Only supported in RRDtool 1.4+
$rrdborder = 1;

[lohmeyer]

Thank you so much! <3