If you simply would like to draw lines of different widths, you should
precede the POLYLINE call (GPL) with a call to the SET_PLINE_LINEWIDTH
function which is GSLWSC in the FORTRAN binding. Your workstation will then
try to draw a line in the width specified in the GSLWSC call.
CALL GSLWSC( XLineWidth)
CALL GPL( NPoints, Px, Py)
The line width is a real value with 1.0 usually representing the thinnest line
the workstation can display. Setting the value to 2.0 will display twice this
width IF the workstation is able.
The above approach sets the INDIVIDUAL attribute of a polyline. BUNDLED
attributes are primarily used when you wish to change an attribute
(colour, width, line_type) dynamically when the line is stored as a segment.
If this is what you would like to do, e-mail me.
Hope this helps you!
Genetek Earth Research Corporation (604) 921-6807
P.O. Box 517
Lions Bay (Vancouver), B.C., CANADA