[Thread Prev][Thread Next][Index]
Re: [ferret_users] Limitation of gif pixel?
Hi,
Thanks for your suggestion.
I know the ps file maybe the best solution for this kind of application.
But if I try to produce a series of 2d time series plot,
gif file naming seems easier than ps file, like
gif:
frame/file=test1_`l`.gif
ps:
ferret -batch test1_1.plt
Fprint test1_1.plt
ferret -batch test1_2.plt
Fprint test1_2.plt
.......
Dan
2009/11/6 Ansley Manke
<Ansley.B.Manke@xxxxxxxx>
Hi -
Yes, there is an upper limit for gif images, and I agree with Ryo that using postscript is the way to get a high-resolution plot. Here's a past message with some details about making a large postscript image.
http://www.pmel.noaa.gov/maillists/tmap/ferret_users/fu_2003/msg00128.html
Ansley
Ryo Furue wrote:
Hi Dan,
| I try to produce a high resolution gif file (say 1200*1200) with
| set_pixel_size.jnl script.
| Some weird thing happen,
| if I control size below 900, the actual pixel size will increase with
| setting, like 400*400 and 800*800,
| the pixel size are about 382*382 and 756*756.
| However, if I increase size above to 900*900 (or 1200*1200),
| the actual pixel size of gif is all the same (about 856*856) with above to
| 900*900 setting.
| | The gif is produced with ferret normal mode, and I can see the window size
| increase until about 900*900.
| Could this problem cause by monitor resolution or graphic card limitation?
I don't know the answer to your question as it is.
But, I suggest an alternative; I thought you might
want first to generate an EPS file and then to convert
it to a high-resolution GIF, PNG, etc.
This method is potentially more flexible. For example,
suppose you want a publication-quality image. Then you
would need 600dpi or so. That means that if your original
image is 3 inch by 3 inch, your GIF file would be 1800 pixels
by 1800 pixels. That's too large for an ordinary computer
monitor. Moreover, I can imagine that the windowing system
(in our case, the X Window) may have a limitation in the size
it can accommodate. (You might be actually hitting such a
limit.)
Regards,
Ryo
[Thread Prev][Thread Next][Index]
Contact Us
Dept of Commerce /
NOAA /
OAR /
PMEL /
TMAP
Privacy Policy | Disclaimer | Accessibility Statement