[GRASS-dev] Re: v.in.dxf: support for 3DFACE?

[Michael Barton]

Thanks. I'm passing this on to one of my colleagues who needs it right away.

Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton


> From: Huidae Cho <grass4u at gmail.com>
> Date: Tue, 6 Jun 2006 11:24:06 -0500
> To: Michael Barton <michael.barton at asu.edu>
> Cc: Hamish <hamish_nospam at yahoo.com>, grass5 <grass-dev at grass.itc.it>, Andrea
> Moreno Martin <andrea.moreno at uv.es>
> Subject: Re: [GRASS-dev] Re: v.in.dxf: support for 3DFACE?
> 
> On Tue, Jun 06, 2006 at 08:48:56AM -0700, Michael Barton wrote:
>> I haven't kept up with v.in.dxf since initially testing it and cheering its
>> incorporation into GRASS 6. But I'll be needing it soon and some of my
>> colleagues are using it quite a bit.
>> 
>> Is there a way to maintain a dxf entity attribute as a cat/attribute for
>> areas? The object it to avoid going through the complication of converting
>> lines to boundaries, adding centroids, adding cats, and linking cats with
>> attributes.
> 
> I'll add the ENTITY column some time later.
> 
> Huidae Cho
> 
>> 
>> Michael
>> __________________________________________
>> Michael Barton, Professor of Anthropology
>> School of Human Evolution & Social Change
>> Center for Social Dynamics & Complexity
>> Arizona State University
>> 
>> phone: 480-965-6213
>> fax: 480-965-7671
>> www: http://www.public.asu.edu/~cmbarton
>> 
>> 
>> 
>>> From: Huidae Cho <grass4u at gmail.com>
>>> Date: Tue, 6 Jun 2006 10:16:03 -0500
>>> To: Hamish <hamish_nospam at yahoo.com>
>>> Cc: grass5 <grass-dev at grass.itc.it>
>>> Subject: [GRASS-dev] Re: v.in.dxf: support for 3DFACE?
>>> 
>>> Hamish,
>>> 
>>> On Wed, Jun 07, 2006 at 02:23:22AM +1200, Hamish wrote:
>>>> Hi,
>>>> 
>>>> all excited to try out v.in.dxf :) but 3DFACE isn't implemented yet :(
>>>> 
>>>> I can convert the DXF to a polyline version, and import with the new -f
>>>> flag, but I need to run v.build before I can display it. After that I
>>> 
>>> I fixed this bug.
>>> 
>>>> can do g.region v=, display with d.vect, & display in NVIZ (3D vector).
>>>> 
>>>> Looking in v.info the x,y,z ranges are all 0,0.
>>>> Note the final x,y ranges are both negative. (?)
>>>> 
>>>> after import:
>>>>  |            N: 0.000         S: 0.000                      |
>>>>  |            E: 0.000         W: 0.000                      |
>>>>  |            B: 0.000         T: 0.000                      |
>>>> after v.build:
>>>>  |            N: -4816.565     S: -5951.313                  |
>>>>  |            E: -1943.884     W: -3092.723                  |
>>>>  |            B: -11.644        T: 54.011                    |
>>>> 
>>> 
>>> Well, I think usual coordinates in DXF are not geographic coordinates, but
>>> it
>>> depends on DXF files.
>>> 
>>>> ??
>>>> 
>>>> 
>>>> Also it exits with "No DXF layers found!" for the 3DFACE import.
>>>> This had me really puzzled as the layer does exist, it is just all
>>>> of unknown feature types. Could the error message be improved?
>>>> "... with data!"
>>>> "Layers found with no features"
>>>> "No features in layer"
>>>> ???
>>> 
>>> v.in.dxf does not count layers it cannot import.
>>> 
>>>> 
>>>> 
>>>> Any plans for 3DFACE support? The wireframe is good stuff, but just a
>>>> skeleton. :)
>>>> 
>>>>  http://www.autodesk.com/techpubs/autocad/acad2000/dxf/3dface_dxf_06.htm
>>>> 
>>>>  
>>>> http://freegis.org/cgi-bin/viewcvs.cgi/grass6/vector/v.in.dwg/entity.c?rev=
>>>> HE
>>>> AD&content-type=text/vnd.viewcvs-markup
>>> 
>>> Could you send me a sample DXF for 3DFACE and its screenshot?
>>> 
>>> Thank you.
>>> Huidae Cho
>>> 
>>> 
>>