[GRASS5] v.in.ascii problems

[Hamish]

> In GRASS 5.7, I¹ve 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 didn¹t 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:
> 
> v.in.ascii input=vector_test_ver4 output=vector_test
> WARNING: The vector 'vector_test' already exists and will be
> overwritten.uilding topology ...
> Registering lines: 
> 1 primitives registered
> Building areas:  100%0 areas built
> 0 isles built
> Attaching islands: 
>                    
> Attaching centroids:  100%
>                    
> Topology was built.
> Number of nodes     :   2
> Number of primitives:   1
> Number of points    :   0
> Number of lines     :   1
> Number of boundaries:   0
> Number of centroids :   0
> Number of areas     :   0
> Number of isles     :   0
> 
> 
> The line actually has 53 nodes. When I go to display it, there is
> nothing to display.


Ok, the only problem is that we need to write a glossary. (great task
for a wiki..)


Your line is made up of 53 vertices, 2 nodes (end points), and 
1 primitive (the line). So the above is actually correct.


g.region vect=vector_test
d.vect vector_test

works.


'v.digit vector_test' may explain what the nodes are more clearly.



Hamish