Problem with PostScript output of surface plot

[David M. Cook]

5 May 2016

This is a response to Mike Miller's response to my inquiry of yesterday.  For 
some reason the email sent to the address address@hidden is bouncing back to 
me, having apparently been redirected to address@hidden and rejected.  I am 
therefore sending it to address@hidden  Please forward it specifically to Mike.

Thank you.

David

David M. Cook                      VOICE:  920-832-6721
Department of Physics     FAX:    920-832-6962
Lawrence University         Email:  address@hidden
711 E Boldt Way, SPC24
Appleton, WI 54911


-----Original Message-----
From: David M. Cook 
Sent: Thursday, May 05, 2016 3:12 PM
To: 'Mike Miller' <address@hidden>
Subject: Re: Problem with PostScript output of surface plot

5 May 2016

Mike,

Thanks for your prompt response.  I have attached two screen copies.  The file 
EPSfile.JPG is a screen copy of the display with ghostview of the EPS file 
produced by the script below including the print command; the file 
GNUPLOToutput.JPG is a screen copy of the display produced on the screen 
directly by OCTAVE (i.e., the script below without the print command).  The 
latter looks fine; the former has some shadows of structure that, I think, 
ought to be hidden. 

David

David M. Cook                      VOICE:  920-832-6721
Department of Physics     FAX:    920-832-6962
Lawrence University         Email:  address@hidden
711 E Boldt Way, SPC24
Appleton, WI 54911

-----Original Message-----
From: Mike Miller [mailto:address@hidden
Sent: Thursday, May 05, 2016 2:01 PM
To: David M. Cook <address@hidden>
Cc: 'address@hidden' <address@hidden>
Subject: Re: Problem with PostScript output of surface plot

On Wed, May 04, 2016 at 19:42:36 +0000, David M. Cook wrote:
> 4 May 2016
> 
> Greetings,
> 
> Executing the script
> 
> graphics_toolkit(  'gnuplot' )
> [x,y] = meshgrid( [0.0:0.02:1.0], [0.0:0.02:1.0] ); z = sin(2.0*pi*x)
> .* sin(3.0*pi*y);
> surf(x,y,z)
> colormap( 'gray' )
> shading( 'interp' )
> 
> produces a very satisfactory surface plot of the 2-3 mode of a 
> vibrating square membrane. (I am running on a Windows 7 computer with 
> Version 4.0.0 of OCTAVE.)
> 
> I have attached the PostScript file created by the statement
> 
> print  -deps2  trial.eps
> 
> executed after the above code has been executed.  This display is not quite 
> an accurate transcription of the on-screen display produced by OCTAVE.
> 
> Have I discovered a bug, a feature, or an oversight on my part of some 
> additional command I should execute?  The on-screen display is correct; the 
> PostScript file is not.
> 
> Thank you for your help.

I don't see any problems on my system or with the attached file.

People don't always see the same things, it would be helpful if you would 
attach a screenshot of what you see in the figure that looks correct, and also 
a screenshot of what you see when you open the eps file on your system.

I'm attaching a screenshot of what the eps file you attached looks like when I 
view it.

--
mike

EPSfile.JPG
Description: EPSfile.JPG

GNUPLOToutput.JPG
Description: GNUPLOToutput.JPG