Trying to convert lines to polygons

Juan Bañuls juabacar13 at hotmail.com
Fri Feb 19 06:45:11 EST 1999


Hello!!!
First I would like to thank you for your time and the support you're 
giving to GRASS. Well, I've a problem: I'm trying to convert the lines 
of a dxf file into areas. In order to get it I've probed the 
v.line2area.sh script, but it does not work as I want since some areas 
are not detected, and I cannot give any parameters interactively in 
order to improve the translation. 
Also I've proved to:
	1- Import the dxf file with v.in.dxf to a ASCII vector file,
	2- Replace all the L's by A's
	3- Convert the ASCII vector file to a GRASS VECTOR one.
I have run v.support with several snapping values but (in the best case) 
I've got the same results obtained with v.line2area.sh. So I don´t know 
how to tell GRASS to recognize all the areas contained in the dxf. Of 
course I have probed to filter the file with v.clean, v.trim... but the 
only way I've found of getting the right results with GRASS has been 
cleaning the dxf before with AutoCAD Map :-( and doing v.line2area.sh.
As you can suppose this is a very bad solution, because AutoCAD Map is 
very slow, and I don't want to buy it because it's expensive. 

Have you any idea?
Thank you very much.

Juan Bañuls 



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