[GRASS-user] v.generalize threshold and boyle's algorithm

Johannes Radinger JRadinger at gmx.at
Tue Feb 7 07:08:05 EST 2012


after some month a tried an script again which
calls v.generalize. It seems that this module
has changed in version 6.4.2 and 6.5SVN.

Before I could use following:   
                      input = input,
                      output = "vector_gen",
                      method = "boyle",
                      look_ahead = 8,
                      overwrite = True)

Now it seems that v.generalize needs a threshold value (required!)
although the manual states only: Input parameters: input, look_ahead

I am confused now if this value is really necessary for calculating boyle's algorithm and if yes how should a value be choosen?

Moreover I'd like to know what means the 'r' flag (backwards compatibility), were there any major changes in recent time (last year)?

Best regards,

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