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<FONT FACE="Verdana, Helvetica, Arial"><SPAN DEFANGED_STYLE='font-size:12.0px'>In GRASS 5.7, I’ve used v.in.ascii in the past to import point files to vector points. It is supposed to also import ascii vector files and convert them to binary. I tried it today and it didn’t work. To test it, I exported a small vector file to ascii—using v.out.ascii. I tried it with the ver. 4 flag checked and unchecked (it gave me identical results in this case). Then I tried to import the same file. Here is the output:<BR>
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v.in.ascii input=vector_test_ver4 output=vector_test <BR>
WARNING: The vector 'vector_test' already exists and will be overwritten.uilding topology ...<BR>
Registering lines: <BR>
1 primitives registered <BR>
Building areas: 100%0 areas built <BR>
0 isles built<BR>
Attaching islands: <BR>
<BR>
Attaching centroids: 100%<BR>
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Topology was built.<BR>
Number of nodes : 2<BR>
Number of primitives: 1<BR>
Number of points : 0<BR>
Number of lines : 1<BR>
Number of boundaries: 0<BR>
Number of centroids : 0<BR>
Number of areas : 0<BR>
Number of isles : 0<BR>
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The line actually has 53 nodes. When I go to display it, there is nothing to display.<BR>
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What I am trying to do is convert a track of gps points into a vector line for display. This should be relatively easy using v.in.ascii. But something is not working—or am I missing a subtle point somewhere?<BR>
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Michael<BR>
______________________________<BR>
Michael Barton, Professor of Anthropology<BR>
School of Human, Cultural, and Social Change<BR>
Arizona State University<BR>
Tempe, AZ 85287-2402<BR>
USA<BR>
<BR>
voice: 480-965-6262; fax: 480-965-7671<BR>
www: <a href="http://www.public.asu.edu/~cmbarton">http://www.public.asu.edu/~cmbarton</a><BR>
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