21 lines
1.1 KiB
Text
21 lines
1.1 KiB
Text
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g2 is a simple to use graphics library for 2D graphical applications
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written in Ansi-C.
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This library provides a comprehensive set of functions for
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simultaneous generation of graphical output on different types of
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devices. Presently, following devices are currently supported by g2:
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X11, GIF, PostScript (xfig and Win32 are in developement).
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One major feature of the g2_library is the concept of virtual
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devices. An arbitrary number of physical devices (such as GIF, or X11)
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can be grouped to create a so-called virtual device. Commands sent to
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such a virtual devices will automatically issued to all attached
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physical devices. This allows for example simultaneous output to a GIF
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file and a Postscript file. A virtual device in turn can be attached
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to another virtual device, allowing to construct trees of devices.
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Virtual devices can also be useful when using different
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user-coordinate systems. E.g. one X11 window showing an overview of a
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graphical output, and a second window showing a zoom of a more
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detailed area of the graphic. Drawing in both windows is performed by
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one single command to the virtual device.
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