Wikipedia:Graphic Lab/Resources/Wikimaps atlas/Lesson 1
master.makefile (0%)
[edit]Action: When run, this master.makefile
runs other layer-specialized sub-makefiles. These sub-makefiles download the GIS sources, process them, output topojson file(s) which nodejs, jsdom, and D3js code can convert into stand alone SVGs.
master.makefile |
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Example |
cd ./home/.../wikimaps/
make -f master.makefile WEST=-5.8 NORTH=51.5 EAST=10.0 SOUTH=41.0 ITEM=France
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Parameters:
- WEST=... : Western most longitude value of the frame to map. Accept integer between 90.0⁰ & -90.0⁰.
- NORTH=... : Northern most latitude value ————. ————.
- EAST=... : Eastern most longitude value ————. ————.
- SOUTH= ... : Southern most latitude value ————. ————.
- ITEM= ... : name of the target/central geographic item, according to Natural_Earth spelling.
shadedrelief.makefile (100%)
[edit]Action: When run, this shadedrelief.makefile
download the raster GIS DEM sources, process them (unzip, crop, shaded relief, resize), to output an elegant shaded relief png (current) or topojson/svg.
shadedrelief.makefile |
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# ACTION:
# When run, this shadedrelief.makefile download the raster GIS DEM sources, process them (unzip, crop, shaded relief, resize), to output an elegant shaded relief png (current) or topojson/svg.
# RUN:
# cd ~/wikimaps/
# make -f shadedrelief.makefile WEST=-5.8 NORTH=51.5 EAST=10.0 SOUTH=41.0 ITEM=France
# SOURCES:
# http://www.imagemagick.org/script/command-line-options.php#alpha
#--------------------------------------------------------------------------
#DEFAULT VALUES (customizable):
WIDTH=1500
FUZZ=7
#MAKEFILE
progressive_transparency: grey_wiping
convert shadedrelief.grey_no.png -alpha copy -channel alpha -negate +channel $(ITEM).shadedrelief.trans.png
grey_wiping: resizing
convert $(ITEM).shadedrelief.grey.png -fuzz $(FUZZ)% -transparent "#DDDDDD" shadedrelief.grey_no.png
resizing: shading
convert shadedrelief.tif -resize $(WIDTH) $(ITEM).shadedrelief.grey.png
shading: crop
gdaldem hillshade crop.tif shadedrelief.tif -z 5 -s 111120 -az 315 -alt 60
#---- Crop
crop: unzip
gdal_translate -projwin $(WEST) $(NORTH) $(EAST) $(SOUTH) ETOPO1_Ice_g_geotiff.tif crop.tif #ETOPO1_Ice_g_geotiff.tif
# ulx uly lrx lry (geodegrees) // W N E S #todo: add name parameter
#---- Download
unzip: download
unzip -n ../data/ETOPO1/ETOPO1.zip '*.tif' #-n: no overwrite if exist;
touch ETOPO1_Ice_g_geotiff.tif
download: clean
curl -o ../data/ETOPO1/ETOPO1.zip 'http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/ice_surface/grid_registered/georeferenced_tiff/ETOPO1_Ice_g_geotiff.zip'
clean:
# task commands to improve!
echo "hello" > fakefile.ext
rm `ls | grep -v '.makefile'| grep -v '.tif'`
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Example |
cd ~/wikimaps/
make -f shadedrelief.makefile WEST=-5.8 NORTH=51.5 EAST=10.0 SOUTH=41.0 ITEM=France
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Extended content
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To do:
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topography.makefile (0%)
[edit]Action: When run, this topography.makefile
download the raster GIS DEM sources, process them (unzip, crop, slice, polygonize, merge), to output an elegant topographic stack topojson or svg file.
topography.makefile |
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[...]
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Example |
cd ./home/.../wikimaps/
make -f topography.makefile WEST=-5.8 NORTH=51.5 EAST=10.0 SOUTH=41.0 ITEM=France
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Extended content
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To do:
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See also
[edit]The table above has links to various tutorials and resources which can help in the creation of Wikipedia maps from digital georeferenced data (GIS).