When starting QtiPlot from the command prompt, you can supply the name of a project file:
qtiplot file_name.qti
Other file formats are also accepted: .opj, .ogm, .ogw, .ogg for Origin projects, and .qti, qti.gz for QtiPlot projects.
The name can also refer to an ASCII file:
qtiplot ASCII_file_name
In this latter case a new "untitled" project will be created, containing a spreadsheet with the ASCII data in the file and a 2D plot of all columns as a function of the first column in the file. You must take care of the format of the ASCII file because it will be read with the current values of the Import ASCII... command dialog. These default values are:
the default field separator is ; but it can be changed in the Preferences... command dialog,
all lines are read,
the first line is used to name the columns,
the spaces at the end of the lines are not removed,
the spaces are not simplified.
Valid options are:
-a or --about: show about dialog and exit
-d or --default-settings: start QtiPlot with the default settings
-h or --help: show command line options
-l=XX or --lang=XX: start QtiPlot in language XX ('en', 'fr', 'de', ...)
-m or --manual: show QtiPlot manual in a standalone window
-v or --version: print QtiPlot version and release date
-x or --execute: execute the script file given as argument
-X: execute the script file given as argument without displaying the user interface. Warning: 2D plots are not correctly handled in this functioning mode!