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#!/usr/bin/env python
# Copyright 2008, Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# 3. Neither the name of Google Inc. nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# This program demonstrates use of the KML DOM Python SWIG bindings
# for walking the feature hierarchy of a KML file.
import sys
import kmldom
import kmlengine
argc = len(sys.argv)
if argc != 2:
print 'usage: %s input.kml' % sys.argv[0]
sys.exit(1)
inputkml = sys.argv[1]
def ReadFile(filename):
f = open(filename, 'r')
data = f.read()
return data
def Indent(depth):
while depth:
print ' ',
depth -= 1
def PrFeatureType(type):
if type == kmldom.Type_Placemark:
print 'Placemark',
else:
print 'some other Feature',
# This visits a feature. The type of feature is printed. If the feature
# is a container such is visited recursively.
def VisitFeature(feature, depth):
Indent(depth)
PrFeatureType(feature.Type())
print 'id=',feature.get_id()
container = kmldom.AsContainer(feature)
if container:
WalkContainer(container, depth+1)
# This visits each feature in the given container (<Document> or <Folder>).
def WalkContainer(container, depth):
for i in range(container.get_feature_array_size()):
VisitFeature(container.get_feature_array_at(i), depth)
# Program main: read the file to memory, parse it, get and visit
# the root feature if such exists.
def main():
feature = kmlengine.GetRootFeature(kmldom.ParseKml(ReadFile(inputkml)))
if feature:
VisitFeature(feature, 0)
# Python deletes the feature and all of its descendant elements in turn.
else:
# The file is a KML fragment.
print 'No root feature in %s' % inputkml
if __name__ == '__main__':
main()
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