polygons that share a common boundry(?)y

Marty McKimmey marty at baxter.uark.edu
Mon Sep 28 08:35:53 EDT 1992


> It is my understanding that this is part of the complex problem 
  of importing InterGraph to GRASS.  We had the Intergraph files
  coverted to DXF then imported them into GRASS.  Yes, I got two
  lines per shared polygon boundary.  The only solution I can fine
  at this time, is to import to GRASS digit format, plot the file
  and scan the file using Scan CAD and editing with LTPlus. If your
  line work is not that complex, v.digit is the best choise.  If 
  it is complex, then scanning might be one answer.  For our problem 
  we are going to hand digitize the labels.  If your labels are in 
  the DXF file these can be converted into labels with v.in.dxf (see
  manual pages).  If the labels are not there, you can import them if 
  you can get them in an ascii format of easting, northing, and value 
  and copy this file to the dig_att directory and run v.support.  
  Otherwise, the only choise is v.digit.

  Marty McKimmey		Dept. of Agronomy
  allen.uark.edu		115 Plant Science
  501-575-3590			Fayetteville AR 72701
 
> 
> Lets say you have two areas separated by a single line:
> 
>         ____________________
>         |       |          |
>         |       |          |
>         |  1    |    2     |
>         |       |          |
>         --------------------
> 
> I brought these areas in to Grass via v.in.dxf, I now want to convert tis
> into two labled areas without having to digitize the polygons in v.digit.
> If this can't be done in Grass directly, does anyone know if Arc/Info can
> do it?
> 
> Thanks!
> 
> -Lee Thomas
> 




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