Dear Yufang,
we have several scripts for converting nrml into a number of formats and for plotting input and output. This is mostly 'scientific' code not following the strict testing rules we adopt for openquake development but so far it worked. We're in a process of creating a repository on github where all these scripts will be made available and will create also a folder in OATS.
However, in other to answer more precisely to your request, it would be useful to understand if there's a specific format you need (e.g. shape files) and if plotting scripts producing postscripts files can be a sufficient (temporary) option.
The GEM web platform that is currently under development (called openquake, while the calculation code will be named openquake-engine) will offer all the necessary functionalities for plotting and exporting into different formats openquake-engine input and output information.
Thank you and kind regards,
Marco