Querry

[Ryo Furue]

Hi,

| I have a querry regarding the qulaity of the files GrADS
| generated. I use gxeps and epstopdf commands to make the pdf files.
| but. the qulaity of the pdf file genetared is very bad.
|
| It's always generating the file with some white lines in the color
| field. Is there a solution to it. Can there be some specific command
| or anything to avoid those white lines. is it a pixel problem?

The white lines are displayed only on the computer screen.
If you print it out, you won't see them.

The white lines are an artifact of the way your PDF-viewer
renders the PDF file on your screen.  Very often, PDF viewers
use the "anti-aliasing" technique to smooth the edges of
shapes, which generates the white lines because each
color-shaded area of GrADS is actually a collection
of smaller polygons.

So, if you need a clean-looking plot on your screen,
you want to turn off the "anti alias" option of your
viewer.  If you use the latest version of Adobe Reader
(version 9) for example, the option is

   "Edit" > "Preferences" > "Page Display" > "Smooth line art"

I guess other viewers have similar options.

Regards,
Ryo