Provided by: plplot-doc_5.10.0+dfsg2-0.1ubuntu2_all
plwidth - Set pen width
Sets the pen width. Redacted form: plwidth(width) This function is used in examples 1,2.
width (PLFLT, input) The desired pen width. If width is negative or the same as the previous value no action is taken. width = 0. should be interpreted as as the minimum valid pen width for the device. The interpretation of positive width values is also device dependent.
Many developers (who are credited at http://plplot.sourceforge.net/credits.php) have contributed to PLplot over its long history.
PLplot documentation at http://plplot.sourceforge.net/documentation.php. February, 2016 PLWIDTH(3plplot)