Re: [Gnuplot-info] Fw: How to get Gnuplot to plot an PNG picture.

[Thomas S. <t.s...@fz...>]

David P. Hann Sr. <dph1134 <at> comcast.net> writes:

> ----- Original Message ----- 
> From: David P. Hann Sr. 
> To: gnuplot-info <at> lists.sourceforge.net 
> Sent: Sunday, June 02, 2013 5:31 PM
> Subject: How to get Gnuplot to plot an PNG picture.
> 
> I need some help. How do I get Gnuplot to plot a PNG picture
> to my HP7550A plotter? Also, what syntax do I use to
> get Gnuplot to load my PNG picture from a particular directory,
> or does my PNG picture have to be located
> somewhere in the Gnuplot directory? Will I receive replies
> to this query, or where do I need to go to on
> Sourceforge to see any answers to my question? Any help
> offered will be greatly appreciated! Thank you.
> 

the hp7550a is a pen plotter, isn't it?

plotting a raster image with a pen-plotter isn't a good idea.
for each pixel pen (x-direction) and paper (y-direction) need
to be positioned and the pen pushed to the paper. for each color
an individual pen is needed.
it would take a long time (hours?) to plot the raster image.

pen plotters were made to draw vectors graphics.