[GRASS5] not clear behaviour of v.clean

[ivan marchesini]

Dear developpers,
I tried to use v.clean to correct a vector map...
if I use more than one tool at the same time, for example:
____________________________________________________
v.clean input=insediamenti output=insed_prova_clean1
tool=rmdupl,bpol,rmarea thresh=10
____________________________________________________

I obtain the next output:

_____________________________________________________

WARNING: Threshold for tool 1 may not be > 0, set to 0
+---------------------------------+---------------+
| Tool                            | Threshold     |
+---------------------------------+---------------+
| Remove duplicates                | 0.000000e+00 |
| Break polygons                   | 0.000000e+00 |
| Remove small areas               | 0.000000e+00 |

..............
..............
...............
Tool: Remove small areas
Removed areas:     0
0 areas of total size 0 removed
_____________________________________________________

it seems that the first tool force the value of the threshold of tool
rmarea to be 0.0

in fact if I use v.clean over the same file but using only rmarea tool..
the module remove 6 ares... as you can see below:

____________________________________________________

 v.clean input=insediamenti output=insed_prova_clean3 tool=rmarea
thresh=10

+---------------------------------+---------------+
| Tool                            | Threshold     |
+---------------------------------+---------------+
| Remove small areas               | 1.000000e+01 |
.................
................
..................
...................
Tool: Remove small areas
Removed areas:    11
11 areas of total size 24.7048 removed
_____________________________________________________


It could be a bug????

bye

Ivan













-- 
ivan marchesini <marchesini at unipg.it>