<DIV>Hi all,</DIV>
<DIV>wish</DIV>
<DIV>GRASS can import DXF with inscribed text in polygons becoming its attributes.</DIV>
<DIV>It will save a lot of bother.. Details in mails below.</DIV>
<DIV>Thanking the untiring programming team in anticipation</DIV>
<DIV>Ravi</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>On Thu, Jun 09, 2005 at 10:33:26PM -0700, RAVI KUMAR wrote:<BR>> Hi,<BR>> the import of DXF is not a problem and we have been doing it.<BR>> It is a WISH THAT<BR>> 1. If the TEXT inside a polygon automatically becomes it's attribute <BR>after import into GRASS!!\\<BR>> It would save a lot of time.<BR>> May be the developers of GRASS may kindly consider this aspect.. in <BR>the next GRASS CVS release..<BR>> Ravi<BR>> Markus Neteler <<A href="http://us.f605.mail.yahoo.com/ym/Compose?To=neteler@itc.it&YY=69500&order=down&sort=date&pos=0&view=a&head=b"><FONT color=#003399>neteler@itc.it</FONT></A>> wrote:<BR>> 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>&g!
t; 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 primitives: 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 expecte!
d 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 wrote:<BR>> > <BR>> > > Hi Ravi,<BR>> > > <BR>> > > could you send (offlist) a small DXF sample file to<BR>> > > 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 backgrou!
nd (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>> > > > can 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></DIV><p>__________________________________________________<br>Do You Yahoo!?<br>Tired of spam? Ya!
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