Helmut Kudrnovsky wrote > Hi, > >>2016-09-18 20:04 GMT+02:00 Markus Neteler <
> neteler@ > >: >>>> "GRASS needs to be compiled with BZIP2 for BZIP2 compression" >>>> ? >>> >>> I checked >>> https://wingrass.fsv.cvut.cz/grass73/x86_64/logs/log-r69510-8/ >>> BZIP2 support: no >>> >>> That's why it is at time not included in winGRASS... >> >>bzlib2 support activated in trunk (r69517). Let's check the next >>WinGRASS build. Martin > > tested with today's winGRASS daily: > --- > echo %GRASS_COMPRESSOR% > BZIP2 > > r.mapcalc expression=checkcompression = elevation@PERMANENT / 2 > > r.compress -p map=checkcompression@checkbzip2 > > <checkcompression> > is compressed (method 4: BZIP2). Data type: FCELL > --- > > thanks for activating BZIP2 compression. some tests with different compressors: r.info map=CHELSA_bio01@chelsa_bioclim +----------------------------------------------------------------------------+ | Map: CHELSA_bio01@chelsa_bioclim Date: Mon Sep 19 21:21:59 2016 | | Mapset: chelsa_bioclim Login of Creator: hkmyr | | Location: loc_epsg4326 | | DataBase: D:\grassdata | | Title: CHELSA_bio01 | | Timestamp: none | |----------------------------------------------------------------------------| | | | Type of Map: raster Number of Categories: 0 | | Data Type: FCELL | | Rows: 4920 | | Columns: 8160 | | Total Cells: 40147200 | | Projection: Längen- und Breitengrad | | N: 73N S: 32N Res: 0:00:30 | | E: 54E W: 14W Res: 0:00:30 | | Range of data: min = -16.2343 max = 26.04194 | | | | Data Description: | | generated by r.in.gdal | | | | Comments: | | r.in.gdal -k input="D:\gis_data_climate\chelsa\CHELSA_bio01_1979-201\ | | 3_V1_1_eur.tif" output="CHELSA_bio01" memory=300 offset=0 num_digits=0 | | | +----------------------------------------------------------------------------+ r.info map=CHELSA_bio02@chelsa_bioclim +----------------------------------------------------------------------------+ | Map: CHELSA_bio02@chelsa_bioclim Date: Mon Sep 19 21:22:17 2016 | | Mapset: chelsa_bioclim Login of Creator: hkmyr | | Location: loc_epsg4326 | | DataBase: D:\grassdata | | Title: CHELSA_bio02 | | Timestamp: none | |----------------------------------------------------------------------------| | | | Type of Map: raster Number of Categories: 0 | | Data Type: FCELL | | Rows: 4920 | | Columns: 8160 | | Total Cells: 40147200 | | Projection: Längen- und Breitengrad | | N: 73N S: 32N Res: 0:00:30 | | E: 54E W: 14W Res: 0:00:30 | | Range of data: min = 6.353987 max = 27.25062 | | | | Data Description: | | generated by r.in.gdal | | | | Comments: | | r.in.gdal -k input="D:\gis_data_climate\chelsa\CHELSA_bio02_1979-201\ | | 3_V1_1_eur.tif" output="CHELSA_bio02" memory=300 offset=0 num_digits=0 | | | +----------------------------------------------------------------------------+ r.info map=CHELSA_bio03@chelsa_bioclim +----------------------------------------------------------------------------+ | Map: CHELSA_bio03@chelsa_bioclim Date: Mon Sep 19 21:22:35 2016 | | Mapset: chelsa_bioclim Login of Creator: hkmyr | | Location: loc_epsg4326 | | DataBase: D:\grassdata | | Title: CHELSA_bio03 | | Timestamp: none | |----------------------------------------------------------------------------| | | | Type of Map: raster Number of Categories: 0 | | Data Type: FCELL | | Rows: 4920 | | Columns: 8160 | | Total Cells: 40147200 | | Projection: Längen- und Breitengrad | | N: 73N S: 32N Res: 0:00:30 | | E: 54E W: 14W Res: 0:00:30 | | Range of data: min = 31.54294 max = 62.04853 | | | | Data Description: | | generated by r.in.gdal | | | | Comments: | | r.in.gdal -k input="D:\gis_data_climate\chelsa\CHELSA_bio03_1979-201\ | | 3_V1_1_eur.tif" output="CHELSA_bio03" memory=300 offset=0 num_digits=0 | | | +----------------------------------------------------------------------------+ r.info map=CHELSA_bio04@chelsa_bioclim +----------------------------------------------------------------------------+ | Map: CHELSA_bio04@chelsa_bioclim Date: Mon Sep 19 21:22:54 2016 | | Mapset: chelsa_bioclim Login of Creator: hkmyr | | Location: loc_epsg4326 | | DataBase: D:\grassdata | | Title: CHELSA_bio04 | | Timestamp: none | |----------------------------------------------------------------------------| | | | Type of Map: raster Number of Categories: 0 | | Data Type: FCELL | | Rows: 4920 | | Columns: 8160 | | Total Cells: 40147200 | | Projection: Längen- und Breitengrad | | N: 73N S: 32N Res: 0:00:30 | | E: 54E W: 14W Res: 0:00:30 | | Range of data: min = 216.0067 max = 1312.274 | | | | Data Description: | | generated by r.in.gdal | | | | Comments: | | r.in.gdal -k input="D:\gis_data_climate\chelsa\CHELSA_bio04_1979-201\ | | 3_V1_1_eur.tif" output="CHELSA_bio04" memory=300 offset=0 num_digits=0 | | | +----------------------------------------------------------------------------+ --------- original geotif with gdal_translate -co COMPRESS=LZW -co PREDICTOR=2 ls -l total 279600 -rw-r--r-- 1 88170601 Sep 19 19:07 CHELSA_bio01_1979-2013_V1_1_eur.tif -rw-r--r-- 1 56511749 Sep 19 19:13 CHELSA_bio02_1979-2013_V1_1_eur.tif -rw-r--r-- 1 69376203 Sep 19 19:16 CHELSA_bio03_1979-2013_V1_1_eur.tif -rw-r--r-- 1 72247104 Sep 19 19:19 CHELSA_bio04_1979-2013_V1_1_eur.tif --------- r.in.gdal and GRASS_COMPRESSOR=ZLIB ls -l total 305909 -rw-r--r-- 1 82287638 Sep 19 19:28 CHELSA_bio01_zlib -rw-r--r-- 1 77139587 Sep 19 19:28 CHELSA_bio02_zlib -rw-r--r-- 1 74791532 Sep 19 19:28 CHELSA_bio03_zlib -rw-r--r-- 1 79030011 Sep 19 19:28 CHELSA_bio04_zlib --------- r.in.gdal and GRASS_COMPRESSOR=BZIP2 and GRASS_INT_ZLIB=9 ls -l total 311983 -rw-r--r-- 1 84163200 Sep 19 19:21 CHELSA_bio01 -rw-r--r-- 1 78882189 Sep 19 19:22 CHELSA_bio02 -rw-r--r-- 1 74892325 Sep 19 19:22 CHELSA_bio03 -rw-r--r-- 1 81530621 Sep 19 19:22 CHELSA_bio04 ----------- at least in this case of data, r.external to '-co COMPRESS=LZW -co PREDICTOR=2' geotiffs saves more disk space than import (regardless of the GRASS_COMPRESSOR). ----- best regards Helmut -- View this message in context: http://osgeo-org.1560.x6.nabble.com/GRASS-COMPRESSOR-BZIP2-in-winGRASS-tp5286534p5286738.html Sent from the Grass - Dev mailing list archive at Nabble.com. _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
