[GRASS-user] Importing From GeoPDF

GRASS GRASS user
,
1

Hello,

I’m trying to import a new-style GeoPDF USGS topo map into an existing GRASS location as a raster layer. I’ve converted the file to a GeoTIFF with gdal_translate and then adjusted to projection using gdalwarp. When I import the GeoTIFF into GRASS, each color band is written as a separate layer:

r.in.gdal input=/Users/dkindem/MI_Grand_Haven_20110923_TM_geo_wgs.tif output=MI_Grand_Haven_20110923_TM_geo_wgs
Projection of input dataset and current location appear to match
r.in.gdal complete. Raster map <MI_Grand_Haven_20110923_TM_geo_wgs.red> created.
r.in.gdal complete. Raster map <MI_Grand_Haven_20110923_TM_geo_wgs.green> created.
r.in.gdal complete. Raster map <MI_Grand_Haven_20110923_TM_geo_wgs.blue> created.
(Sun Aug 19 10:50:07 2012) Command finished (2 sec)

Each layer displays (in monochrome), but I’d like to create a single, color, layer.

I’m curious to know if others have encountered this, or have thoughts on the issue.

Thanks in advance,

Dave

Dave Kindem
Grand Haven, MI

2

Have you tried r.composite, e.g. for band files file_tif.*

r.composite b=file_tif.blue g=file_tif.green r=file_tif.red out=file_colour

?

Jon

Þann sunnudagur 19 Augúst 2012 15:00 GMT, skrifaði Dave Kindem <dkindem@gmail.com>:

Hello,

I'm trying to import a new-style GeoPDF USGS topo map into an existing GRASS location as a raster layer. I've converted the file to a GeoTIFF with gdal_translate and then adjusted to projection using gdalwarp. When I import the GeoTIFF into GRASS, each color band is written as a separate layer:
> r.in.gdal input=/Users/dkindem/MI_Grand_Haven_20110923_TM_geo_wgs.tif output=MI_Grand_Haven_20110923_TM_geo_wgs
> Projection of input dataset and current location appear to match
> r.in.gdal complete. Raster map <MI_Grand_Haven_20110923_TM_geo_wgs.red> created.
> r.in.gdal complete. Raster map <MI_Grand_Haven_20110923_TM_geo_wgs.green> created.
> r.in.gdal complete. Raster map <MI_Grand_Haven_20110923_TM_geo_wgs.blue> created.
> (Sun Aug 19 10:50:07 2012) Command finished (2 sec)

Each layer displays (in monochrome), but I'd like to create a single, color, layer.

I'm curious to know if others have encountered this, or have thoughts on the issue.

Thanks in advance,

Dave

Dave Kindem
Grand Haven, MI

3

Have you tried r.composite, e.g. for band files file_tif.*

r.composite b=file_tif.blue g=file_tif.green r=file_tif.red out=file_colour

or use

d.rgb - Displays three user-specified raster maps as red, green, and blue
overlays in the active graphics frame.

http://grass.osgeo.org/grass64/manuals/html64_user/d.rgb.html

-----
best regards
Helmut
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