Hamish <[email protected]> writes: > karme writes: >> I am looking for a DFSG-free [0] global digital elevation >> model (GDEM) which I ultimately want to package for debian. >> >> is the SRTM [1] data DFSG-free? >> >> think so: >> http://www2.jpl.nasa.gov/srtm/mou.html > > yes it is, but probably not appropriate for inclusion in debian > due to the large size of the dataset.
ok >> rest of the world could be filled using GLOBE G.O.O.D. data > > if you are interested in such a thing I'd suggest one of the > ETOPO series. (1,2,5 arc-min resolution) > see http://www.ngdc.noaa.gov/mgg/global/global.html > > In particular, etopo5 is old, but relatively small. i am not sure etopo1 is better than GLOBE G.O.O.D. especially regarding license issues (this starts driving me crazy) for testing purpuses i created a GLOBE G.O.O.D. GDEM in geotiff format (tiled internally and compressed) that is ~200MiB without overviews and ~300MiB including overviews. (raw data would be: 43200 * 21600 * 2 MiB / (1024 * 1024) = 1779.78515625 MiB) See also attached Makefile (I hope the attachment goes through) > Better is to include tools to download what data you need on- > the-fly I think, ok > and the more immediate need is to package the Natural Earth dataset > shapefiles. ok > see also http://grass.osgeo.org/wiki/Global_datasets thanks greetings karme
# using bashisms SHELL=/bin/bash SRC="http://www.ngdc.noaa.gov/mgg/topo/DATATILES/elev/all10g.tgz"; METASRC="http://www.ngdc.noaa.gov/mgg/topo/elev/esri/hdr/"; MD5="f5b1bd95ac5c35aa974dce91c324072a" INSTALL = install INSTALL_DATA = $(INSTALL) -m 644 PACKAGE=dem-globe all: dem-globe.tif dem-globe.tif: dem-globe.vrt gdal_translate -a_srs epsg:4326 -of GTiff -co "TILED=YES" -co "COMPRESS=DEFLATE" -co "ZLEVEL=7" -co "PREDICTOR=2" $< $@ gdaladdo -r cubic $@ 2 4 8 16 32 64 128 dem-globe.vrt: download-meta.stamp mv -v all10/a11g all10/a10g gdalbuildvrt $@ $$(echo all10/{a..p}10g) download.stamp: [ "$$(md5sum all10g.tgz |cut -f 1 -d " ")" = "$(MD5)" ] || { wget -nc "$(SRC)" && [ "$$(md5sum all10g.tgz |cut -f 1 -d " ")" = "$(MD5)" ] ; } && touch $@ || rm -vf all10g.tgz unpack.stamp: download.stamp tar xzf all10g.tgz && touch $@ download-meta.stamp: unpack.stamp cd all10 && for i in {a..p}; do wget -nc $(METASRC)/$${i}10g.hdr; done && cd .. && touch $@ clean: rm -vf *.stamp *~ dem-globe.tif dem-globe.vrt all10g.tgz rm -rvf all10 installdirs: $(INSTALL) -d $(DESTDIR)/usr/share/dem-data $(INSTALL) -d $(DESTDIR)/usr/share/doc/$(PACKAGE) install: installdirs $(INSTALL_DATA) dem-globe.tif $(DESTDIR)/usr/share/dem-data $(INSTALL_DATA) README $(DESTDIR)/usr/share/doc/$(PACKAGE) $(INSTALL_DATA) COPYING $(DESTDIR)/usr/share/doc/$(PACKAGE) $(INSTALL_DATA) globedocumentationmanual.pdf $(DESTDIR)/usr/share/doc/$(PACKAGE)
Prerequisites / build dependencies: - gnu make - md5sum - bash - wget - gdal - internet connection Run: make and make install
