Maciej Sieczka wrote:
> I'm not sure if this is a defect or a feature for a purpose,
> thus asking first.
> 
> v.mkgrid always creates areas with horizontal boundaries
> having 2 extra nodes (see attached screendump from v.digit).
> I can't see a reason why extra nodes are necesssary.
> Vertical boundaries don't have them...


from vector/v.mkgrid/write_grid.c:
/*
* For latlon, must draw in shorter sections
* to make sure that each section of the grid
* line is less than half way around the globe
*/
  x_len = length/3.;
  x_cols = cols*3.;


Hamish

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