[GRASSLIST:10730] Re: Viewing raster maps a native resolution

[Nick Cahill]

I tend to use r.out.tif to convert the map to a full-resolution tiff  
file, and then do further work in Photoshop or some other image- 
manipulation program. You may have to rescale your values to 0-255 to  
get this to work properly.

Cheers,

Nick Cahill



On Mar 3, 2006, at 8:21 PM, Dylan Beaudette wrote:

> On Friday 03 March 2006 09:08 am, Maciek Sieczka wrote:
>> On Fri, 3 Mar 2006 07:11:49 -0800
>>
>> "David Finlayson" <david.p.finlayson at gmail.com> wrote:
>>> I'd like to hear how people do poster-size output myself. So far,  
>>> I've
>>> done mostly figure-sized output and d.out.png is fine for that. You
>>> can set up the monitor to roughly a multiple size of what you need.
>>> Then use d.out.png to export the monitor to a PNG file. Finally, add
>>> the map decorations necessary for your map in Inkscape or Gimp.  
>>> On my
>>> (physical) monitor I can stretch the Xmonitor out to about 1200
>>> pixles. d.out.png res=2 will double that, so I have a png file with
>>> 2400 pixels on a side. At 300 dpi that is an 8-inch figure (high-res
>>> publication). At 150 dpi, which is good enough for most plotters,  
>>> that
>>> is a picture 16 inches across. I don't know how to go larger than  
>>> that
>>> for a full-sized poster.
>>
>
> David,
>
> for simple output from a Xmon, I use the method that you mention,  
> although I
> will sometimes output at res=4 and then use imagemagick's 'convert'  
> to scale
> the image back down to 50% of that to get some antialiasing.
>
> To get antialiasing in NVIZ, i use the 'output full res ppm'  
> option, which
> results in a HUGE file. I then use 'convert' to downsize this to an
> acceptable size/resolution for poster printout. This has the  
> benefit of
> making large sized images AND antialiasing them. Here is an example:
> http://169.237.35.250/~dylan/temp/flow_paths.png
>
>> I use Qgis map composer to output Grass rasters + vectors to an eps
>> (say A1), then cut that into A4 pieces with the poster (available
>> for Debian and forks), print them A4 pages. Worse if I will need to
>> edit the eps produced by QGIS further - does anyone know of an editor
>> able to import eps, preserving the raster, vector and text features,
>> edit it and save back to eps/ps/pdf?
>>
>> Maciek
>
>
> Maciek:
>
> Give Inkscape, Scribus, and Xfig a try for the editing of EPS files.
>
>
> For larger maps, or for jobs that need press quality output, I use  
> GMT.
> Examples here: http://casoilresource.lawr.ucdavis.edu/drupal/node/102
>
>
> Cheers,
>
>
>
> -- 
> Dylan Beaudette
> Soils and Biogeochemistry Graduate Group
> University of California at Davis
> 530.754.7341
>