Created
August 24, 2012 15:43
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Python script to covert GeoTiff .CLR file to a Carto style for CartoDB
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import sys | |
args = [] | |
for arg in sys.argv: | |
args.append(arg) | |
try: | |
clr_file = args[1] #'glc2000_v1_1.clr' | |
except: | |
print """ You must supply an input .CLR filename. | |
python clr2carto.py {filename} {optional: value_column_name} {optional: target_table}""" | |
try: | |
value_column_name = args[2] | |
except: | |
value_column_name = 'rast_value' | |
try: | |
cartodb_tablename = args[3] | |
except: | |
cartodb_tablename = clr_file.rsplit('.',1)[0].replace('.','_').replace(' ','_').replace('-','_') | |
delimiter = ' ' | |
raster_styles = '' | |
for line in open(clr_file): | |
li=line.strip() | |
if not li.startswith("#") and li.strip() != '': | |
params = line.strip().split(delimiter) | |
cell_val = params.pop(0) | |
rgb = 'rgb(%s)' % ','.join(str(x) for x in params) | |
raster_styles += "\n [%s = %s]{ polygon-fill: %s }" % (value_column_name, cell_val, rgb) | |
default_output = """#%s { | |
polygon-fill:#FF6600; | |
polygon-opacity: 0.7; | |
line-opacity:1; | |
line-color: #FFFFFF;%s | |
}""" % (cartodb_tablename, raster_styles) | |
f = open('CartoDB.carto.css','w+').write(default_output) |
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