hi y'all,
i was wandering is there a way to convert a vector polygon drawn by the user
on a "background" raster layer into a binary (1 on the inside, 0 on the outside)
layer of its own?this may be a simple question, i would like to know the answer before i plunge
into the GRASSy knoll.thanks
In v.digit, label the vector polygon as category 1. Run v.support. Run
v.to.rast (be sure that your region has appropriate coordinates and resolution.
Remember, all raster operations are dependent on your current region!). Voila!
*--------------------------------------------------------------------------*
| Rica Saporta B.Sc.F | __ _-==-=_,-. |
| Faculty of Forestry | /--`' \_@-@.--< |
| University of Toronto | `--'\ \ <___/. "Cause |
| 33 Willcocks Street | \ \\ ' / tiggers are |
| Toronto, Canada | >=\\_/`< wonderfull |
| M5S 3B3 | ____ /= | \_|/ things" |
| (416) 978-6152 | _' `\ _/=== \___/ |
| | |
| >> saporta@smokey.forestry.utoronto.ca << |
*--------------------------------------------------------------------------*
--
Malcolm D. Williamson - GIS Specialist E-mail: malcolm@cast.uark.edu
Center for Advanced Spatial Technologies Telephone: (501) 575-6159
Ozark Rm. 12 Fax: (501) 575-3846
University of Arkansas
Fayetteville, AR 72701