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Re: Object Graphics Vector Output [message #41006 is a reply to message #40852]

Thu, 16 September 2004 16:53

Mark Hadfield
Messages: 783
Registered: May 1995

Senior Member

Karl Schultz wrote:
> "Iam A. Lurker" <Iam.a.Lurker@gmail.com> wrote in message
> news:ci9h9s$qq8@odah37.prod.google.com...
>
>> I just tried using 6.1 and, in general, the axes and text in look to be
>> much improved. Most importantly, both axes have the same thickness!!
>> Sadly, this is only an eval license and it isn't clear if/when we'll
>> upgrade to 6.1 (5.1 -> 6.0 last year).
>>
>
> Yes, this does seem to be fixed in IDL 6.1. We fixed a lot of issues with
> vector output in this release.

My experience is quite different (apart from the text-size bug I
mentioned in another posting in this thread). I find, like the original
poster, that postscript vector output from IDL 6.1 looks very poor
mainly due (I think) to lines having very narrow widths.

The following URLs point to EPS and PNG files of a simple line plot
produced by IDL 6.0 and 6.1 on Windows:

ftp://ftp.niwa.co.nz/incoming/m.hadfield/X-Y_line_plot_6.0.e ps.gz
ftp://ftp.niwa.co.nz/incoming/m.hadfield/X-Y_line_plot_6.0.p ng
ftp://ftp.niwa.co.nz/incoming/m.hadfield/X-Y_line_plot_6.1.e ps.gz
ftp://ftp.niwa.co.nz/incoming/m.hadfield/X-Y_line_plot_6.1.p ng

When I view the EPS file produced by version 6.1 with Gsview, the text
looks fine, but the axis lines are barely visible and the tick marks not
visible at all. Ditto when I print it to a Postscript printer.

These are all produced from a view with UNITS = 2 and DIMENSIONS 12.15 x
12.15 (cm). The RESOLUTION of the IDLgrClipboard object from which the
EPS files were drawn was 0.028 (which my code takes from an IDLgrWindow
object to make the various forms of output as similar as possible, but
it makes no difference if I use the IDLgrClipboard default of 0.035).

--
Mark Hadfield "Ka puwaha te tai nei, Hoea tatou"
m.hadfield@niwa.co.nz
National Institute for Water and Atmospheric Research (NIWA)

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[Message index]

		Re: Object Graphics Vector Output By: Iam A. Lurker on Wed, 15 September 2004 08:55
		Re: Object Graphics Vector Output By: Karl Schultz on Wed, 15 September 2004 08:21
		Re: Object Graphics Vector Output By: Iam A. Lurker on Wed, 15 September 2004 06:49
		Re: Object Graphics Vector Output By: David Fanning on Wed, 15 September 2004 05:06
		Re: Object Graphics Vector Output By: btt on Wed, 15 September 2004 05:04
		Re: Object Graphics Vector Output By: Antonio Santiago on Tue, 14 September 2004 23:25
		Re: Object Graphics Vector Output By: Mark Hadfield on Thu, 16 September 2004 16:53
		Re: Object Graphics Vector Output By: Randall Skelton on Wed, 29 September 2004 13:09
		Re: Object Graphics Vector Output By: Mark Hadfield on Wed, 15 September 2004 21:20

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