The PLplot Plotting Library: Programmer's Reference Manual
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### `plwind`: Specify world coordinates of viewport boundaries

`plwind` (xmin, xmax, ymin, ymax);

Sets up the world coordinates of the edges of the viewport.

`xmin` (`PLFLT`, input) The world x coordinate of the left-hand edge of the viewport. `xmax` (`PLFLT`, input) The world x coordinate of the right-hand edge of the viewport. `ymin` (`PLFLT`, input) The world y coordinate of the bottom edge of the viewport. `ymax` (`PLFLT`, input) The world y coordinate of the top edge of the viewport.

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`plwid`: Set pen width | Up | `plxormod`: Enter or leave xor mode