I'm under the impression that i.pr.training
requires a point vector map, but I'm not 100%
sure and haven't tested a polygon vector file?
Perhaps, you could use the polygon centroids
to extract your training features or else
digitise a point vector map.
Regards,
Daniel.
Moritz Lennert wrote:
On 28/11/07 14:25, Daniel McInerney wrote:
Hi Moritz,
What does v.info training give?
> v.info training
+----------------------------------------------------------------------------+
| Layer: training |
| Mapset: user1 |
| Location: imagery60 |
| Database: /home/mlennert/GRASS/DATA |
| Title: |
| Map scale: 1:1 |
| Map format: native |
| Name of creator: mlennert |
| Organization: |
| Source date: Thu Nov 22 16:22:31 2007 |
|----------------------------------------------------------------------------|
| Type of Map: vector (level: 2) |
| |
| Number of points: 0 Number of areas: 14
|
| Number of lines: 0 Number of islands: 14
|
| Number of boundaries: 14 Number of faces: 0
|
| Number of centroids: 14 Number of kernels: 0
|
| |
| Map is 3D: 0 |
| Number of dblinks: 1 |
| |
| Projection: Projection inconnue |
| N: -1178.27114746 S: -2050.34100516 |
| E: 1841.24981384 W: 780.66696671 |
| |
| Digitization threshold: 0 |
| Comments: |
| |
+----------------------------------------------------------------------------+
Did
you use v.digit or v.in.ascii to
create the layer? I used the latter
when I was working with it.
I used v.digit.
Moritz
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