[GRASS-user] problem with v.edit tool=merge

[Martin Landa]

Hi,

BTW I committed some minor fixes in v.edit tool=merge (printing number
of  merged lines). So you should run `cvs update` and recompile it.
Sorry, v.edit module is relatively new/under development. In any case
it is great there is the user who is testing/using v.edit;-)

Martin

2007/3/28, Martin Landa <landa.martin at gmail.com>:
> Hi Jarek,
>
> I converted ASCII data into binary format (vector map 'linie') [1].
>
> I tried to merge all available lines (threshold=0):
>
> g.copy vect=linie,linie1 ; v.edit linie1 tool=merge cat=1-99999
> Copy vector <linie at temp> to current mapset as <linie1>
> WARNING: The vector 'linie1' already exists and will be overwritten.
> [11] of [11] features selected
> Editing: [3] lines merged
>
> Result [2] seems OK.
>
> Trying to merge only lines with category 21 and 22
>
> g.copy vect=linie,linie1;v.edit linie1 tool=merge cat=21,22
> Copy vector <linie at temp> to current mapset as <linie1>
> WARNING: The vector 'linie1' already exists and will be overwritten.
> [2] of [11] features selected
> Editing: [0] lines merged
>
> No lines merged because the selected lines have not any joint node.
> Increasing threshold these lines are merged:
>
> g.copy vect=linie,linie1 ; v.edit linie1 tool=merge cat=21,22 thre=2000
>
> Result [3] seems OK.
>
> Would be possible to give me more detailed information?
>
> Thanks, Martin
>
> [1] http://gama.fsv.cvut.cz/~landa/temp/grass/v-edit-merge/linie_cat.png
> [2] http://gama.fsv.cvut.cz/~landa/temp/grass/v-edit-merge/linie_merge1_cat.png
> [3] http://gama.fsv.cvut.cz/~landa/temp/grass/v-edit-merge/linie_merge2_cat.png
>
>
> 2007/3/28, Jarosław Jasiewicz <jarekj at amu.edu.pl>:
> >
> > >
> > > Because I cannot tell you why the lines are not merged (or fix a bug).
> > > Without any testing data I can do nothing. v.out.ascii format=standard
> > > exports a vector map into GRASS ASCII-vector format. Then I can import
> > > it, reproduce a strange behaviour of module and fix it.
> > >
> > thanks, here are linie.txt with exported data. It is simple testing file.
> > I also can send the binary vector file (zipped directory) if you wish
> > regards
> > Jarek
> >
> > ORGANIZATION:
> > DIGIT DATE:
> > DIGIT NAME:
> > MAP NAME:
> > MAP DATE:
> > MAP SCALE:    1
> > OTHER INFO:
> > ZONE:         0
> > MAP THRESH:   0.000000
> > VERTI:
> > L  6 1
> >  381864.87117803 385450.44349761
> >  383136.04125283 383805.39987141
> >  383435.14009396 382459.45508633
> >  384033.33777622 380664.86203956
> >  384481.98603791 379618.01609561
> >  384781.08487904 378720.71957222
> >  1     26
> > L  5 1
> >  353226.15713997 374907.20934783
> >  354721.65134561 374832.43463755
> >  359507.23280367 374383.78637585
> >  363245.96831778 375654.95645065
> >  364965.78665427 376327.92884319
> >  1     27
> > L  6 1
> >  366760.37970104 375355.85760952
> >  366909.9291216 374682.88521698
> >  367657.67622442 373336.9404319
> >  372293.70826192 372888.29217021
> >  373490.10362643 373187.39101134
> >  374536.94957038 373187.39101134
> >  1     28
> > L  6 1
> >  371471.18644881 391432.42032019
> >  372817.13123389 390983.77205849
> >  373415.32891615 390834.22263793
> >  375808.11964518 391507.19503047
> >  379023.43218731 392479.26626414
> >  379771.17929013 398087.3695353
> >  1     23
> > L  5 1
> >  343804.54364441 391208.09618934
> >  347618.05386881 392329.71684357
> >  348963.99865388 390983.77205849
> >  351805.43764461 390535.1237968
> >  360479.30403734 390684.67321737
> >  1     21
> > L  6 1
> >  362049.57295326 383880.17458169
> >  366685.60499076 382758.55392746
> >  368181.0991964 382609.00450689
> >  372218.93355163 384852.24581536
> >  373863.97717784 384702.69639479
> >  376256.76790687 383805.39987141
> >  1     25
> > L  5 1
> >  362273.89708411 390908.99734821
> >  363171.19360749 391058.54676878
> >  364068.49013088 390460.34908652
> >  366760.37970104 390834.22263793
> >  371471.18644881 391432.42032019
> >  1     22
> > L  5 1
> >  346346.88379401 383132.42747887
> >  352179.31119602 384104.49871254
> >  354347.7777942 382758.55392746
> >  357862.18917746 382609.00450689
> >  359058.58454198 383655.85045084
> >  1     24
> > L  4 1
> >  343580.21951357 399134.21547925
> >  346197.33437344 399807.18787179
> >  349636.97104642 398162.14424558
> >  351356.78938291 399283.76489981
> >  1     18
> > L  7 1
> >  368554.97274781 398835.11663812
> >  373564.87833671 399881.96258207
> >  375509.02080405 399508.08903066
> >  376929.74029941 398461.24308671
> >  378500.00921534 398685.56721756
> >  379397.30573872 398461.24308671
> >  379771.17929013 398087.3695353
> >  1     20
> > L  6 1
> >  353899.12953251 399134.21547925
> >  359208.13396254 396442.32590909
> >  362498.22121495 397713.49598389
> >  364816.2372337 399508.08903066
> >  367433.35209358 398536.01779699
> >  367508.12680386 397638.72127361
> >  1     19
> >
> >
>
>
> --
> Martin Landa <landa.martin at gmail.com> * http://gama.fsv.cvut.cz/~landa *
>


-- 
Martin Landa <landa.martin at gmail.com> * http://gama.fsv.cvut.cz/~landa *