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kml_to_sjx.py
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kml_to_sjx.py
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import sys
import getopt
import urllib2
import re
from pykml import parser
from pykml import helpers
from lxml import objectify
from lxml import etree
namespace = 'http://earth.google.com/kml/2.2'
scriptTemplate = "'// Refer to newly created entity with ''self''\n\
\n\
logger.info(\"Created entity \" + self.name);\n\
{0}\n\
'"
defaultScript = scriptTemplate.format('')
reportScriptTemplate = scriptTemplate.format('sumet.createReport({0});')
entityScriptTemplate = scriptTemplate.format('sumet.createEntity({0});')
#this is mostly just here for documentation at this point
typeMap = {'Point':'waypoint', 'LineString':'route',
'RPGReport':'threat-rpg', 'RPG':'rpg',
'SAFReport':'threat-saf', 'SAF':'saf',
'IEDReport':'ied-undetonated', 'IED':'ied'
}
def get_tree_from_url(url):
fileobject = urllib2.urlopen(url)
tree = parser.parse(fileobject)
return tree.getroot()
def create_entity_element(name, prototype, location, force="friendly", visible='true', orientation=0.0, initScript=defaultScript, points=['[]'], outFile=None):
output_lines = ['',
'- alt: ' + location[2],
' force: ' + force,
' heading: ' + '0.0',
' initScript: ' + initScript,
' lat: ' + location[1],
' lng: ' + location[0],
' name: ' + name,
' pitch: ' + '0.0',
' points: ' + '\n - '.join(points),
' prototype: ' + prototype,
' roll: ' + '0.0',
' visible: ' + visible]
if prototype == 'script':
outFile = open(name + '.yaml', 'w')
outFile.write('events:\n')
outFile.write('\n'.join(output_lines))
outFile.close()
else:
outFile.write('\n'.join(output_lines))
return
# Future version using a data object to hold the data rather than passing all the parameters in separately.
# Not yet used.
def write_element(elem):
output_lines = ['',
'- alt: ' + elem.alt,
' force: ' + elem.force,
' heading: ' + '0.0',
' initScript: ' + elem.initScript,
' lat: ' + elem.lat,
' lng: ' + elem.lng,
' name: ' + elem.name,
' pitch: ' + '0.0',
' points: ' + '\n - '.join(elem.points),
' prototype: ' + elem.prototype,
' roll: ' + '0.0',
' visible: ' + elem.visible]
if prototype == 'script':
outFile = open(name + '.yaml', 'w')
outFile.write('events:\n')
outFile.write('\n'.join(output_lines))
outFile.close()
else:
outFile.write('\n'.join(output_lines))
return
def parse_name(name):
name_parts = re.split(':?\s+', name)
ret_name = '-'.join(name_parts)
prototype = 'unknown'
script = defaultScript
while len(name_parts) < 3:
name_parts.append('n/a')
(obj_name, obj_type1, obj_type2) = name_parts[:3]
if obj_type1 == 'IED':
if obj_type2 == 'Report':
prototype = 'script'
script = reportScriptTemplate.format('"ied-undetonated", null, 0')
else:
prototype = 'script'
script = entityScriptTemplate.format('"ied", 0')
elif obj_type1 == 'RPG':
if obj_type2 == 'Report':
prototype = 'script'
script = reportScriptTemplate.format('"threat-rpg", null, 0')
else:
prototype = 'script'
script = entityScriptTemplate.format('"rpg", 0')
elif obj_type1 == 'SAF':
if obj_type2 == 'Report':
prototype = 'script'
script = reportScriptTemplate.format('"threat-saf", null, 0')
else:
prototype = 'script'
script = entityScriptTemplate.format('"saf", 0')
elif obj_type1 == 'Traffic':
if obj_type2 == 'Report':
prototype = 'script'
script = reportScriptTemplate.format('"traffic-heavy", null, 0')
else:
prototype = 'script'
script = entityScriptTemplate.format('"automobile", 0')
elif obj_type1 == 'Obstacle' or obj_type1 == 'Obstacles' or obj_type1 == 'Blockage':
if obj_type2 == 'Report':
prototype = 'script'
script = reportScriptTemplate.format('"obstacle-report", null, 0')
else:
prototype = 'script'
script = entityScriptTemplate.format('"obstacle", 0')
elif obj_type1 == 'Bridge-Out':
if obj_type2 == 'Report':
prototype = 'script'
script = reportScriptTemplate.format('"bridge-disabled", null, 0')
else:
prototype = 'script'
script = entityScriptTemplate.format('"obstacle", 0')
else:
if obj_name == 'Line' or obj_type1 == 'Route':
prototype = 'route'
else:
prototype = 'waypoint'
return ret_name, prototype, script
def convert_placemark(placemark, wp_count=0, outFile=None):
name = None
prototype = None
location = None
points = []
for elem in placemark.iterchildren():
tag = helpers.separate_namespace(elem.tag)[1]
if tag == 'name':
name, prototype, script = parse_name(elem.text)
elif tag == 'Point':
location = str.split(elem.coordinates.text, ',')
points.append('[]')
elif tag == 'LineString':
location = ['0', '0', '0']
points.append('')
for coordinate in re.split('\s+', elem.coordinates.text)[1:-1]:
wp_name = 'wp'+str(wp_count)
wp_loc = str.split(coordinate, ',')
create_entity_element(wp_name, 'waypoint', wp_loc, outFile=outFile)
wp_count += 1
points.append(wp_name)
create_entity_element(name, prototype, location, points=points, initScript=script, outFile=outFile)
return wp_count
def process_kml(kml_root, outFile=None):
placemarks = kml_root.Document.findall('{'+namespace+'}Placemark')
wp_count = 0
for placemark in placemarks:
wp_count = convert_placemark(placemark, wp_count, outFile)
return
def main(argv=None):
if argv is None:
argv = sys.argv
url = argv[1]
outFileName = argv[2]
tree = get_tree_from_url(url)
outFile = open(outFileName+'.yaml', 'w')
process_kml(tree, outFile)
outFile.close()
if __name__ == "__main__":
sys.exit(main())