hi, i have a set of x,y,t in a text file sect.txt.. first line represents x1,y1,t1 and second is x2,y2,t1... the 4th line(3rd line is blank) is x3,y3,t2, followed by x4,y4,t3... i want to plot line which has coordinates x1,y1 and x2,y2, with thickness = t.. similary next line has coord = x3,y3...