Asymptote/File IO
This section contains a discussion of the various file manipulation capabilities of Asymptote. It covers image files outputs, source code includes and data file input and output.
Image Files[edit | edit source]
Image files are created by calling the shipout function. However, this need not be explicitly included.
Source Files[edit | edit source]
Many useful modules, as discussed in the Asymptote main page, can be imported using the file import routine; for example:
import graph.asy;
would give access to the numerous graphing functions contained in the file graph.asy.
According to the software documentation (http://asymptote.sourceforge.net), Asymptote will search for module files in the following directories (in order):
- The current directory;
- The directory .asy in the user’s home directory (%USERPROFILE%\.asy under MSDOS);
- A list of one or more directories specified by the configuration variable dir (separated by : under UNIX and ; under MSDOS);
- The Asymptote system directory (by default, /usr/local/share/asymptote under UNIX and C:\Program Files\Asymptote under MSDOS).
The working directory can be changed using the command
string cd(string directory_string);
The return value is the new directory. If directory_string is an empty string, the system returns to the working directory at startup. Note: the option -global or -unsafe must be enabled to change the working directory.
Data Files[edit | edit source]
Data files can be input and output