Jerome said on the gramps-devel list that in fixing
http://www.gramps-project.org/bugs/view.php?id=4556 he removed mk_blue_marble.py and its output from the Makefile: http://gramps.svn.sourceforge.net/viewvc/gramps/trunk/src/images/Makefile.am?r1=16419&r2=16418&pathrev=16419 So since mk_blue_marble.py is not needed anymore I am deleting it. svn: r18352
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#!/usr/bin/python
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# Script to create smaller map tiles for use in the GRAMPS MapView.
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# (c) Martin Hawlisch, martin.hawlisch@gmx.de, 2006.
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# I hereby put this script into the public domain.
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# Images are generated by using the NASA Blue Marble next generation images.
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# http://visibleearth.nasa.gov/view_set.php?categoryID=2355
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# July, Blue Marble Next Generation w/ Topography and Bathymetry:
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# http://visibleearth.nasa.gov/view_rec.php?id=7106
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# 5400 pixel jpeg file:
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# http://veimages.gsfc.nasa.gov/7106/world.topo.bathy.200407.3x5400x2700.jpg
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# This images are public domain.
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import os
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import sys
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tile_defines = []
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def process_file( imagefile, image_width, image_height, map_x, map_y, map_width, outfilepattern, tile_size):
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y = 0
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while (y*tile_size) < image_height:
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x = 0
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while (x*tile_size) < image_width:
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outfile = outfilepattern % (y,x)
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if not os.path.isfile( outfile):
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cmd = "jpegtran -optimize -crop %dx%d+%d+%d -outfile %s %s" %\
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(tile_size,tile_size,x*tile_size,y*tile_size, outfile,imagefile)
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print cmd
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if os.system( cmd):
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print("WARNING: lossless crop using jpegtran (part of libjpeg-progs) failed. Trying lossy fallback")
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cmd = "convert %s -crop %dx%d+%d+%d %s" %\
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(imagefile,tile_size,tile_size,x*tile_size,y*tile_size, outfile)
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print cmd
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if os.system( cmd):
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sys.exit("ERROR, image crop using jpegtran (part of libjpeg-progs) and imagemagick failed.")
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else:
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print "tile %s already exists" % outfile
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tile_width = map_width/(image_width/tile_size)
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tile_x = map_x + tile_width * x
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tile_y = map_y - tile_width * y
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print "location: %dx%d" % (tile_x,tile_y)
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tile_defines.append("self.zoom_map.add_map_source('%s', %d,%d, %d,%d, %d,%d)" %
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(outfile,tile_x,tile_y,tile_width,tile_width,tile_size,tile_size))
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x = x + 1
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y = y + 1
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pass
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def scale_down( infile, outfile, new_width):
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if not os.path.isfile( outfile):
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cmd = "convert %s -resize %d %s" % (infile, new_width, outfile)
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print cmd
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if os.system( cmd):
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sys.exit("ERROR. Scaling down using imagemagick failed.")
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else:
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print "scaled down image %s already exists" % outfile
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def fetch_image( server, filename):
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if not os.path.isfile( sourcemap_midres):
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print "downloading map file %s" % filename
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cmd = "wget -v %s/%s" % (server, sourcemap_midres)
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print cmd
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if os.system( cmd):
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sys.exit("ERROR, image download using wget failed.")
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else:
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print "mapfile %s already downloaded" % filename
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server = "http://veimages.gsfc.nasa.gov/7130"
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# Step 1: Fetch mid-res image
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sourcemap_midres = "world.topo.200407.3x5400x2700.jpg"
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fetch_image( server, sourcemap_midres)
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# Step 2: Scale that down a bit (to a multiple of 16 pixels)
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sourcemap_lowres = "world.topo.200407.3x3200x1600.jpg"
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scale_down(sourcemap_midres,sourcemap_lowres,3200)
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# Step 3: Create tiles
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process_file( sourcemap_lowres, 3200, 1600, -180, 90, 360, "world.topo.200407.3x3200x1600_tile_%d_%d.jpg",400)
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# Step 4: Scale down mid-res image to 2048x1024
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sourcemap_lowres = "world.topo.200407.3x1600x800.jpg"
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scale_down(sourcemap_midres,sourcemap_lowres,1600)
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# Step 4: Tile low-res image
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process_file( sourcemap_lowres, 1600, 800, -180, 90, 360, "world.topo.200407.3x1600x800_tile_%d_%d.jpg",400)
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# Step 5: Scale down once more
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sourcemap_thumb = "world.topo.200407.3x800x400.jpg"
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scale_down(sourcemap_lowres,sourcemap_thumb,800)
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# Step 5: Scale down thumb-scale image
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sourcemap_thumb = "world.topo.200407.3x400x200.jpg"
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scale_down(sourcemap_lowres,sourcemap_thumb,400)
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# Step 5: Scale down thumb-scale image
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sourcemap_thumb = "world.topo.200407.3x128x60.jpg"
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scale_down(sourcemap_lowres,sourcemap_thumb,128)
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for d in tile_defines:
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print d
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