GRASS:~GRASS:/spare/gisdata/grass/bin > v.support mask V.SUPPORT: Selected information from vector header Organization: Map Name: Source Date: Orig. Scale: 0 No snapping will be done Reading Vector file. 100% Building areas Building islands Attaching labels Number of lines: 1 Number of nodes: 1 Number of areas: 1 Number of isles: 1 Number of atts : 0 Number of unattached atts : 0 Snapped lines : 0 |
GRASS:/spare/gisdata/grass/bin > v.to.rast OPTION: vector input file key: input required: YES Enter the name of an existing vector file Enter 'list' for a list of existing vector files Hit RETURN to cancel request > mask |
Enter a new raster file name Enter 'list' for a list of existing raster files Hit RETURN to cancel request > mask |
Parameters: input vector input file output raster output file rows number of rows to hold in memory default: 512 required: NO enter option > Loading vector information ... 0 mins 00 secs Sorting areas by size ... 1 areas 0 mins 00 secs Pass #1 (of 2) Processing areas ... 1 areas 0 mins 00 secs Processing lines ... 0 lines 0 mins 00 secs Processing sites ... 0 sites 0 mins 00 secs Writing raster map ... 0 mins 00 secs Pass #2 (of 2) Processing areas ... 1 areas 0 mins 00 secs Writing raster map ... 0 mins 00 secs Creating support files for raster map ... 0 mins 01 sec Raster map <mask> done. Total processing time: 0 mins 01 sec |
Die Maske selbst wird mit dem Befehl r.mask gesetzt,
der alternativ auch Masken entfernt.
Die erfolgte Maskierung erzeugt eine Rasterdatei MASK
die mit d.rast -o map=MASK angezeigt werden kann.
GRASS:/spare/gisdata/grass/bin > r.mask mask MASK: Program for managing current GIS mask current mask: none |
Options: 1 Remove the current mask 2 Identify a new mask RETURN Exit program |
>2 Enter name of data layer to be used for mask Enter 'list' for a list of existing raster files Enter 'list -f' for a list with titles Hit RETURN to cancel request |
>mask |
IDENTIFY THOSE CATEGORIES TO BE INCLUDED IN THE MASK |
OLD CATEGORY NAME CAT NUM |
. . . . . . . . . . . . . . . . . . . . . . . . . . 0 0_ . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1_ Next category: end__ (0 thru 1) AFTER COMPLETING ALL ANSWERS, HIT <ESC><ENTER> TO CONTINUE (OR <Ctrl-C> TO CANCEL) |