| Re: Font size appearance in function graphics PNG and EPS output [message #86873 is a reply to message #86872] |
Mon, 09 December 2013 11:20   |
chris_torrence@NOSPAM
Messages: 528
Registered: March 2007
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Senior Member |
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On Monday, December 9, 2013 11:32:49 AM UTC-7, Paul van Delst wrote:
> Hi Chris,
>
>
>
> Excellent, thanks. The "HEIGHT=500.0/96" tip is also useful - despite
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> the strange line plotting.
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>
>
> The EPS files are included inside LaTeX (and, in some cases, Word)
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> documents. I've never tried embedding PDFs inside those (since the final
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> result is to create a PDF for distro) but I'll give it a shot.
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>
>
> cheers,
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>
>
> paulv
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>
>
> p.s. Schedule for 8.3.1 release?
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>
>
> On 12/09/13 12:50, Chris Torrence wrote:
>
>> Hi Paul,
>
>>
>
>> Well, there are a couple of things going on. The PNG assumes that
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>> your
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> screen is 96 dots-per-inch, and scales the fonts accordingly. Since EPS
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> is a vector format on a "piece of paper", you need to set your EPS width
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> to match the PNG image width. Something like this:
>
>> p.save, 'test.eps', HEIGHT=500.0/96 ; height in inches However, there
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>> is something wrong with our postscript code where it
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> doesn't draw the plot lines correctly, so this isn't going to work, even
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> in IDL 8.3.
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>>
>
>> I'm not sure if you have to use EPS, but as a possible workaround,
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>> you
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> could use PDF output instead. If you do try PDF, you just need to make
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> sure that you set the "paper" width to be the same as the png image.
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> Something like this:
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>>
>
>> x = DINDGEN(100)
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>> y = (x/10.0d0)^2
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>> p = PLOT(x,y, $
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>> XTITLE='X axis title', $
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>> YTITLE='Y axis title', $
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>> TITLE ='Test plot title', $
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>> FONT_SIZE=10)
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>> p.save, 'test.png', HEIGHT=500
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>> p.save, 'test.pdf', HEIGHT=500.0/96 ; height in inches
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>>
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>> I have logged the EPS issues as bug IDL-68997, and marked it for IDL
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> 8.3.1. Sorry about the bug...
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>>
>
>> -Chris
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>> ExelisVIS
>
>>
Hi Paul,
One other tip - if you aren't trying to edit the EPS files, but you are just embedding them, then you might be better off just going straight to a bitmap file:
p.save, 'test.png', BORDER=10, RESOLUTION=600 ; dots-per-inch
PNG is a pretty efficient file format, so your files won't be too large. You could even cut the resolution down to 300 depending upon the journal requirements.
I also tend to use the BORDER keyword when creating bitmap output. That way I don't have to worry about too much whitespace around the outside of my plots. But that is optional.
Cheers,
Chris
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