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.