| Re: plotting graphics for web pages [message #60493 is a reply to message #60248] |
Tue, 20 May 2008 14:11   |
Vince Hradil
Messages: 574
Registered: December 1999
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Senior Member |
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On May 20, 4:04 pm, Vince Hradil <hrad...@yahoo.com> wrote:
> On May 20, 3:29 pm, David Fanning <n...@dfanning.com> wrote:
>
>> pgri...@gmail.com writes:
>>> I should have specified that this is an integer number
>>> specifying the width in pixel. Try 600, 800 or 1024.
>>> If you give one number, it is the xsize,
>>> and ysize is scaled automatically. Otherwise, you can
>>> also specify something like 800x600
>
>> The command line I tried is this:
>
>> convert -density 300 file.ps -resize 25% file.png
>
>> This gave me a PNG file of the size I was looking for.
>> Again, it is higher resolution, but is larger in size.
>> I've included all three files now in the article.
>> The first file is 15K, the second is 79K, and the
>> third, with the command above, is 162K. Still not
>> bad, but it is eating disk space as we speak. :-)
>
>> http://www.dfanning.com/graphics_tips/weboutput.html
>
>> Cheers,
>
>> David
>> --
>> David Fanning, Ph.D.
>> Fanning Software Consulting, Inc.
>> Coyote's Guide to IDL Programming:http://www.dfanning.com/
>> Sepore ma de ni thui. ("Perhaps thou speakest truth.")
>
> Have you tried the -quality flag?http://www.imagemagick.org/script/command-line-options. php#quality
I did - saves you a few bytes:
convert weboutput_3.png -quality 100 weboutput_4.png <- 146 KB
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