Frequently Asked Questions
-- Latest revision : 12/01/2009 --

(Q) there are many lines printed at the end of the run of Delphes. Is it an error?
55555 D0
 - 20000 D0
 -  - 3000 (detId=900000000 Name=Delphes)
 -  -  - 3000 (detId=910000000 Name=Tracker)
 -  -  -  - 41040 (detId=9100010)
 -  -  -  - 41040 (detId=9100020)
 -  -  -  - 41040 (detId=9100030)
 -  -  -  - 41040 (detId=9100040)
...
(A) no, this is normal, this is just the output of FROG, showing that everything is ok.
You should find your *vis and *geom files when it has ended.

(Q) I do not remember how to run FROG
(A) Just run the "frog" executable in Utilities/FROG
	me@mylaptop:~$ cd Utilities/FROG
	me@mylaptop:~$ ./frog

(Q) How should I know which external libraries I need for FROG ? 
(A) Please refer to this page on the FROG website:
	http://projects.hepforge.org/frog/Visualization.html
    you will need OpenGL, GLUT, X11-devel, Curl. For instance:
	OpenGL :
	  xorg-x11-Mesa-libGL-6.8.2-1.EL.33.0.2
	  xorg-x11-Mesa-libGLU-6.8.2-1.EL.33.0.2
	GLUT :
	  freeglut-2.2.0-14
	  freeglut-devel-2.2.0-14
	X11-devel :
	  xorg-x11-devel-6.8.2-1.EL.33.0.2
	CURL :
	  libcurl 

(Q) FROG complains that libcurl is missing. What should I do?
(A) First, make sure the libcurl library is installed on your computer.
 - locate it on your computer
	me@mylaptop:~$ locate libcurl.so
	/usr/lib/libcurl.so
 - if the library is not present, take it from the internet (http://curl.haxx.se/) or via installers like "apt-get" (ubuntu systems) or "yum" (fedora systems)
 - if the libcurl.so is not found, juste make a symbolic link in Utilities/FROG/Lib:
	me@mylaptop:~$ cd Utilities/FROG/Lib
	me@mylaptop:~$ ln -s /usr/lib/libcurl.so 
	me@mylaptop:~$ ls -l libcurl.so
	lrwxrwxrwx  1 me me 21 Jan  7 15:19 libcurl.so -> /usr/lib/libcurl.so.4.0.1
  - now it should work properly