[GRASSLIST:3727] Re: gnu software for digitizing

[juan pablo perez]

Dear michael...

I don't understand how to do that you say: "crop it and save as dxf while in 
GIMP".
I'm working with the GIMP 1.2.3 and it can't save in dxf format...

Juan Pablo


>From: michaelsalisbury <michaelsalisbury at comcast.net>
>To: "juan pablo perez" <valdentro at hotmail.com>
>Subject: Re: [GRASSLIST:3709] gnu software for digitizing
>Date: Fri, 18 Jun 2004 06:37:33 -0700
>
>I've used Qcad and Gimp for Digitizing.  Load whatever Tiff, Giff, jpeg etc 
>into gimp crop it and save as dxf while in GIMP then import it into Qcad to 
>Digitize.  Qcad has layering capabilities.  It's awkward, but qcad does use 
>layers.  Qcad has the disadvantage of being 2D, I don't know if  that would 
>hinder you.  There are other free/opensource cad's such as Varkon, and 
>BRL-cad that you could obtain and possibly use.  Varkon is easy enough to 
>download and build but is more difficult to learn and BRL-cad is truly 3D 
>but you have to send the US Army some signatures and then they'll email you 
>the source tar.
>
>As far as Qcad, when you open Qcad look on the left hand of the w"indow and 
>there is a menu "Layer List",  under that there is six buttons, an eye 
>highlighted, eye unhighlighted, a plus, a minus, colors, and a trash bin.  
>the two eye buttons are to turn on/off a particular layer,  the plus and 
>negative are to add/delete a layer, and the color button if for layer 
>properties.   Maybe  you aren't working with latest qcad.  The maintainers 
>of Qcad do not offter the binaries.  You have to build the latest Qcad from 
>source .  Or if you use debian it's in the testing or stable lists.
>
>On Friday, June 18, 2004, at 04:50 AM, juan pablo perez wrote:
>
>>Hi
>>
>>I'm working with my pupils with GRASS (developping several DEMs) and they 
>>have problems because v.digit is not as friendly as is MapInfo (as a first 
>>module we worked with it)
>>
>>Is possible to work whit another gnu-program that supports raster images 
>>and layers to digitize contours and export them (e.g. as *.dxf) into 
>>GRASS?. I tried with The GIMP, but it don't exports in vector format; also 
>>tried with QCad, but it has not support for raster layers,...
>>
>>Can anybody help us?...
>>
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>>
>

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