[GRASS-user] v.report output interpretation

[Helmut Kudrnovsky]

Rich Shepard wrote
> My reading of the v.report manual page suggests the output of the command
> matches the option and units specified for the map being reported. That
> does
> not seem to be the case in this situation:
> 
> v.report map=dubois_crk op=area units=kilometers
> cat|TNMID|MetaSourceID|SourceDataDesc|SourceOriginator|SourceFeatureID|LoadDate|GNIS_ID|AreaAcres|AreaSqKm|States|HUC12|Name|HUType|HUMod|ToHUC|NonContributingAreaAcres|NonContributingAreaSqKm|Shape_Length|Shape_Area|area
> 809|{01719BDC-F0AC-4393-AB64-C4C882F68AC3}|||||2013-01-18
> 07:09:30||12636.33|51.14|OR|170900110603|Dubois Creek-Clackamas
> River|S|NM|170900110607|||0.436482690532215|0.00586467773592371|51.1268508220905
> 
>    Now, I can copy that output to a text file and reformat it so data and
> headings match in columns, but is this the expected output when the
> command
> specifies area in kilometers?

loading the text snippet above into a spreadsheet, columns matches here.

looking at the values in the columns:

AreaSqKm
51,14

vs

area (by v.report)
51,12685082

area in square kilometers looks ok without knowing anything about the vector
data.








-----
best regards
Helmut
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