<DIV>Hi,</DIV>
<DIV>the import of DXF is not a problem and we have been doing it.</DIV>
<DIV>It is a WISH THAT</DIV>
<DIV>1. If the TEXT inside a polygon automatically becomes it's attribute after import into GRASS!!\\</DIV>
<DIV>It would save a lot of time.</DIV>
<DIV>May be the developers of GRASS may kindly consider this aspect.. in the next GRASS CVS release..<BR>Ravi<BR><B><I>Markus Neteler <neteler@itc.it></I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">I have tested the map with GRASS 6 (not knowing the<BR>coordinate system):<BR><BR>v.in.dwg Geology.dxf out=geologydxf<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>MTEXT entity not supported<BR>3555 elements processed<BR>Building topology ...<BR>3538 primitives registered<BR>Building areas: 100%<BR>0 areas built<BR>0 isles built<BR>Attaching islands:<BR>Attaching centroids: 100%<BR>Topology was built.<BR>Number of nodes : 2581<BR>Number of primiti!
ves:
3538<BR>Number of points : 16<BR>Number of lines : 3522<BR>Number of boundaries: 0<BR>Number of centroids : 0<BR>Number of areas : 0<BR>Number of isles : 0<BR><BR><BR>The database contains now:<BR>v.db.select
geologydxf<BR>cat|entity_nam|color|weight|layer|block|txt<BR>1|POINT|256|-1|TICS||<BR>2|POINT|256|-1|TICS||<BR>3|POINT|256|-1|TICS||<BR>4|POINT|256|-1|TICS||<BR>5|POINT|256|-1|TICS||<BR>6|POINT|256|-1|TICS||<BR>7|POINT|256|-1|TICS||<BR>8|POINT|256|-1|TICS||<BR>9|POINT|256|-1|TICS||<BR>10|POINT|256|-1|TICS||<BR>11|POINT|256|-1|TICS||<BR>12|POINT|256|-1|TICS||<BR>13|POINT|256|-1|TICS||<BR>14|POINT|256|-1|TICS||<BR>15|POINT|256|-1|TICS||<BR>16|POINT|256|-1|TICS||<BR>17|LINE|256|-1|GELI236||<BR>18|LINE|256|-1|GELI236||<BR>19|LINE|256|-1|GELI236||<BR>20|LINE|256|-1|GELI236||<BR>21|LINE|256|-1|GELI236||<BR>22|LINE|256|-1|GELI236||<BR>23|LINE|256|-1|GELI236||<BR>24|LINE|256|-1|GELI236||<BR>...<BR>3536|LINE|256|-1|GELI236||<BR>3537|LINE|256|-1|GELI236||<BR>3538|LINE|256|-1|GELI236||<BR><BR>I don't know if this is what you expected but to some extent<BR>you can import the DXF file.<BR><BR>Regards<BR><BR>Markus Neteler<BR><BR>On Thu, Jun 09, 2005 at 05:57:04AM -0700, RAVI KUMAR wrote!
:<BR>>
Hi,<BR>> Iam attaching a small 1:50000 scale geological map,<BR>> which is scanned and vectorised manually by a<BR>> draftsman.<BR>> <BR>> When this is imported into ARC-INFO, the inscribed<BR>> text in each Geological polygon becomes its attribute.<BR>> <BR>> This is a very quick method, <BR>> 1. where all the digitization is done by the not so <BR>> computer savvy draftsmen<BR>> 2. Then the Geologist imports it into ARC-INFO to<BR>> convert into a digital data with a vital link<BR>> attribute.<BR>> 3. The geologist then attaches an external database<BR>> table using this link attribute.<BR>> <BR>> If U can make such a thing possible in grass, then we<BR>> can use OGLed Qcad on linux, for the draftsmen and<BR>> GRASS for the Geologists.<BR>> Ravi<BR>> <BR>> --- Markus Neteler <NETELER@ITC.IT>wrote:<BR>> <BR>> > Hi Ravi,<BR>> > <BR>> > could you send (offlist) a small DXF sample file to<B!
R>>
> me?<BR>> > Then I can check for the attributes in v.in.dwg.<BR>> > <BR>> > Markus<BR>> > <BR>> > On Wed, Jun 08, 2005 at 04:56:51AM -0700, RAVI KUMAR<BR>> > wrote:<BR>> > > Hi All,<BR>> > > recently we completed a Geological digital dataset<BR>> > in<BR>> > > ARC-INFO.<BR>> > > The steps in short are<BR>> > > <BR>> > > 1. SCAN the map into and image<BR>> > > 2. Draw polygons of various geological units with<BR>> > the<BR>> > > image of the map in the background (using Autocad)<BR>> > > 3. The polygons of individual units have an<BR>> > inscribed<BR>> > > text indicating the geology and save as a DXF file<BR>> > > 4. Import the resultant DXF file into ARC-INFO.<BR>> > > 5. ARC-INFO automaticall takes the inscribed text<BR>> > in<BR>> > > each polygon as an attribute for that polygon.<BR>> >!
>
<BR>> > > Using DXF import software GRASS is able to get all<BR>> > the<BR>> > > vectors, but IF THE INSCRIBED TEXT OF EACH POLYGON<BR>> > > BECOMES AN ATTRIBUTE then it will be far simpler<BR>> > to<BR>> > > make a GRASS dataset.<BR>> > > <BR>> > > WHY USE AUTOCAD AND WHY NOT DO THE ENTIRE THING IN<BR>> > > GRASS??<BR>> > > <BR>> > > FOSS software 'Qcad', can be used instead of<BR>> > AUTOCAD,<BR>> > > and the CAD Draftsmen with limited knowledge can<BR>> > make<BR>> > > the vector of a geological map after scanning,<BR>> > with<BR>> > > inscribed text in each geological unit represented<BR>> > as<BR>> > > a polygon.<BR>> > > <BR>> > > If GRASS then can import the resultant DXF file<BR>> > from<BR>> > > Qcad, and make the inscribed text as its<BR>> > attribute, it<BR>> > > ca!
n speedup
the process of making digital<BR>> > datasets.<BR>> > > <BR>> > > Hope the GRASS program builders can give a<BR>> > solution,<BR>> > > like this.<BR>> > > <BR>> > > Thanking in anticipation<BR>> > > Ravi <BR>> > > <BR>> > > <BR>> > > <BR>> > > <BR>> > > __________________________________ <BR>> > > Do you Yahoo!? <BR>> > > Yahoo! Mail - Find what you need with new enhanced<BR>> > search. <BR>> > > http://info.mail.yahoo.com/mail_250<BR>> > <BR>> > -- <BR>> > Markus Neteler <NETELER it itc><BR>> > http://mpa.itc.it<BR>> > ITC-irst - Centro per la Ricerca Scientifica e<BR>> > Tecnologica<BR>> > MPBA - Predictive Models for Biol. & Environ. Data<BR>> > Analysis<BR>> > Via Sommarive, 18 - 38050 Povo<BR>> > (Trento), Italy<BR>> > <BR>> <BR>> <BR>> <BR>>
__________________________________ <BR>> Discover Yahoo! <BR>> Use Yahoo! to plan a weekend, have fun online and more. Check it out! <BR>> http://discover.yahoo.com/<BR><BR><BR>-- <BR>Markus Neteler <NETELER it itc>http://mpa.itc.it<BR>ITC-irst - Centro per la Ricerca Scientifica e Tecnologica<BR>MPBA - Predictive Models for Biol. & Environ. Data Analysis<BR>Via Sommarive, 18 - 38050 Povo (Trento), Italy<BR></BLOCKQUOTE><p>
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