Dear R-gurus, I just started to use GRASS, and I am working with a (almost to me) very large dataset into GRASS 6.3.0 NATIVE WINDOWS I imported an Erdas image file using Gdal. Apparently I looks fine, because GRASS understood and create a Mapset with all informations contained on my IMG file (like projection, number of cells, bounding box, etc.).
The raster map is 60,000x48,000 pixels. I tryed display my raster map (it is a binary map with values 0 and 1), but I can see the binary map. How can I display my raster map on Map Display 1? I notice that "d.raster teste" send the output to .tmp directory (or something like). But my biggest problem is that I need to generate a Distance Map from those pixels which values is 1. I tryed "r.buffer input=test output=teste_buffer distances=50,100" (it is in meters) but GRASS return a erros message telling that canĀ“t allocate memory Below is the r.info for the raster that I am trying to "see" and to "buffer". My computer is running windows XP, and I have 4Gb of ram memory. Help are welcome. Miltinho Astronauta Brazil ---- +----------------------------------------------------------------------------+ | Layer: teste Date: Mon Jul 21 18:29:17 2008 | | Mapset: PERMANENT Login of Creator: user | | Location: newLocation | | DataBase: C:/GRASS/database | | Title: ( teste ) | | Timestamp: none | |----------------------------------------------------------------------------| | | | Type of Map: raster Number of Categories: 1 | | Data Type: CELL | | Rows: 60184 | | Columns: 48147 | | Total Cells: 2897679048 | | Projection: UTM (zone -24) | | N: 9183173.84865143 S: 6173973.84865143 Res: 50 | | E: 962345.7741373 W: -1445004.2258627 Res: 50 | | Range of data: min = 0 max = 1 | | | | Data Description: | | generated by r.in.gdal | | | | Comments: | | r.in.gdal input="D:/analisebcjulho2008/mergegeral02_julho2008_mata_d\ | | ila0000m.img" output="teste" | | | +----------------------------------------------------------------------------+
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