id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,cpu,platform 3263,r.to.vect: option to filter raster values,martinl,grass-dev@…,"It would be useful to introduce for G72:r.to.vect `values` option similarly to G72:d.rast for filtering raster values. Let's say that we have viewshed map with two categories (1 - visible, 0 - invisible): {{{ r.category viewA 0 1 }}} We would like convert to vector map only visible areas. Currently we need to run G72:r.mapcalc or G72:r.reclass to be able to perform this task: {{{ r.mapcalc expr='viewA1 = if(viewA == 0, null(), 1)' r.to.vect -sv input=viewA1 out=viewA type=area -t }}} With `values` option we could perform this task by running just one command: {{{ r.to.vect -sv input=viewA out=viewA type=area -t values=1 }}}",enhancement,new,normal,7.8.3,Raster,svn-trunk,,"r.to.vect, values",,Unspecified,Unspecified