# Changes between Version 4 and Version 5 of InstallingEventViewer

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Timestamp:
Nov 10, 2018, 9:54:36 PM (5 months ago)
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 v4 The [https://www.fact-project.org/viewer/ Event Viewer] is a tool which allows to display raw data and manipulate raw data from a web browser. It is ideal to develop new algorithms without recompiling any code or writing a new framework. The disadvantage is that it is quite tedious to install. Here are some instructions. == Requirements == = Requirements = == PHP == If you get an error that V8Js is not properly installed, you might need to create a file php.ini with the following contents {{{ extenstion=v8js.so extension=v8js.so }}} [5] sudo service apache2 reload }}} = Event Viewer = To setup the event viewer, you have to provide the paths to getevent (part of FACT++) and to your data in index.php. Add that in the following lines (the paths are just an example and should be replaced with the correct paths on your system): {{{#!php $getevent = "/home/user/FACT++/build/getevent";$path = array( "cal" => "/home/user/data/", "raw" => "/home/user/data/", "mc"  => "/home/user/data/", ); }}} As Monte Carlo and Calibrated data needs special preparation, you will only want to look at raw data. You can just put the same path three times.