[GRASSLIST:7074] DXF to Grass dataset
ravivundavalli at yahoo.com
Wed Jun 8 07:56:51 EDT 2005
recently we completed a Geological digital dataset in
The steps in short are
1. SCAN the map into and image
2. Draw polygons of various geological units with the
image of the map in the background (using Autocad)
3. The polygons of individual units have an inscribed
text indicating the geology and save as a DXF file
4. Import the resultant DXF file into ARC-INFO.
5. ARC-INFO automaticall takes the inscribed text in
each polygon as an attribute for that polygon.
Using DXF import software GRASS is able to get all the
vectors, but IF THE INSCRIBED TEXT OF EACH POLYGON
BECOMES AN ATTRIBUTE then it will be far simpler to
make a GRASS dataset.
WHY USE AUTOCAD AND WHY NOT DO THE ENTIRE THING IN
FOSS software 'Qcad', can be used instead of AUTOCAD,
and the CAD Draftsmen with limited knowledge can make
the vector of a geological map after scanning, with
inscribed text in each geological unit represented as
If GRASS then can import the resultant DXF file from
Qcad, and make the inscribed text as its attribute, it
can speedup the process of making digital datasets.
Hope the GRASS program builders can give a solution,
Thanking in anticipation
Do you Yahoo!?
Yahoo! Mail - Find what you need with new enhanced search.
More information about the grass-user