void tcurve (width)

void tline (width)

SVC.C Level 13
int width The desired pixel width of lines on the plot in GraphiC pixel space. A width of 90 will equal approximately 0.1 inch on a default full-page output.
tcurve() draws a heavy curve, as specified by the size of width when using a curve drawing routine. tline() causes all lines to be thickened as specified by width. Thickening lines slows down the line drawing; the thicker the line, the slower the drawing.