m (Ochurlaud moved page Projects/Marble/Runners/MarblePythonLoadingKML to Marble/Runners/MarblePythonLoadingKML)
Latest revision as of 21:01, 10 March 2016
Loading KML files into a Marble Widget
Marble uses so-called runners to calculate routes, do reverse geocoding, parse files and search for placemarks (cities, addresses, points of interest, ...). This tutorial shows how to open a .kml (or .gpx, .osm, ...) file and display it into the Marble Widget.
#!/usr/bin/env python from PyQt4.QtCore import * from PyQt4.QtGui import * from PyKDE4.marble import * import sys import os def main(): app = QApplication(sys.argv) # check the file was loaded if(len(sys.argv) < 2): print("Usage: python " + sys.argv + " file.kml") return 1 # load file inputFile = os.path.abspath(sys.argv[-1]) print(inputFile) # create the marble widget marble = Marble.MarbleWidget() # resize the widget and add a window title marble.resize(800, 600) marble.setWindowTitle("loadKML") # Load the OpenStreetMap map marble.setMapThemeId("earth/openstreetmap/openstreetmap.dgml") # center on Bucharest and Zoom marble.centerOn(Marble.GeoDataCoordinates(26.0783, 44.4671, 0, Marble.GeoDataCoordinates.Degree)); marble.setZoom(2200) # add the kml file to the model marble.model().addGeoDataFile(inputFile) # add the widget to the KMainWindow marble.show() # run the app app.exec_() main()
Copy and paste the code above into a text editor. Then save it as loading_kml.py and run it:
python loading_kml.py some-file.kml
You should end up with a map displaying your kml file. For an example file, download and unpack Bucharest.kml (a LinearRing representing Bucharest's city boundaries), place it in the same folder as your loading_kml.py file and run python loading_kml.py bucharest.kml. The result should be similar to this: