28 lines
717 B
Markdown
28 lines
717 B
Markdown
# Usage
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The genplotting library use, as a backend, an external
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[software](https://git.tetalab.org/tTh/libtthimage/src/branch/master/Tools/genplot2.c)
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who can be installed with the [libtthimage](https://git.tetalab.org/tTh/libtthimage) and convert scratchfiles to
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[Targa](https://en.wikipedia.org/wiki/Truevision_TGA) image file.
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Three steps : initialize, use and terminating.
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## Initialize
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Call the subroutine `genp_init` with two parameters.
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The first is an integer and must be 0.
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The second is the filename for recording the plottings instructions,
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if this filename is an empty string, *stdout* will be used.
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## Use it
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- call genp_move(x, y)
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- call genp_draw(x, y, c)
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## Terminator
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- call genp_end(0)
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