geography : added the layer to osmgpsmap.
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SNoiraud
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09fa42dd94
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266
gramps/plugins/lib/maps/kmllayer.py
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266
gramps/plugins/lib/maps/kmllayer.py
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# -*- python -*-
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# -*- coding: utf-8 -*-
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#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2015-now Serge Noiraud
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id: dummynogps.py 20708 2012-11-27 04:31:14Z paul-franklin $
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#-------------------------------------------------------------------------
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#
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# Python modules
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#
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#-------------------------------------------------------------------------
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import os,sys
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from gi.repository import GObject
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import operator
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from math import *
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import xml.etree.ElementTree as ETree
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#------------------------------------------------------------------------
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#
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# Set up logging
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#
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#------------------------------------------------------------------------
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import logging
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_LOG = logging.getLogger("maps.kmllayer")
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#-------------------------------------------------------------------------
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#
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# GTK/Gnome modules
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#
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#-------------------------------------------------------------------------
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from gi.repository import Gdk
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import cairo
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from gi.repository import Pango, PangoCairo
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#-------------------------------------------------------------------------
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#
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# Gramps Modules
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#
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#-------------------------------------------------------------------------
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#-------------------------------------------------------------------------
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#
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# osmGpsMap
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#
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#-------------------------------------------------------------------------
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try:
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from gi.repository import OsmGpsMap as osmgpsmap
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except:
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raise
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class KmlLayer(GObject.GObject, osmgpsmap.MapLayer):
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"""
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This is the layer used to display kml files over the map
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* Allowed : points, paths and polygons.
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* One point : name, (latitude, longitude)
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* One path : name, [ (latitude, longitude), (latitude, longitude), ...]
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* One polygon : name, fill, [ (latitude, longitude), (latitude, longitude), ...]
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"""
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def __init__(self):
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"""
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Initialize the layer
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"""
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GObject.GObject.__init__(self)
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self.dots = []
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self.paths = []
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self.polygons = []
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self.tag = ""
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self.name = ""
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self.type = ""
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self.points = []
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def clear(self):
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"""
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reset the layer attributes.
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"""
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self.dots = []
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self.paths = []
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self.polygons = []
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self.name = ""
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def polygon(self, attributes):
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self.points = []
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for subAttribute in attributes:
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if subAttribute.tag == self.tag + 'outerBoundaryIs':
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for subsubAttribute in subAttribute:
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if subsubAttribute.tag == self.tag + 'LinearRing':
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for subsubsubAttribute in subsubAttribute:
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if subsubsubAttribute.tag == self.tag + 'coordinates':
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for point in subsubsubAttribute.text.split():
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try:
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(longitude, latitude, altitude) = point.split(',')
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except:
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(longitude, latitude) = point.split(',')
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self.points.append((float(latitude), float(longitude)))
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if subAttribute.tag == self.tag + 'innerBoundaryIs':
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for subsubAttribute in subAttribute:
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if subsubAttribute.tag == self.tag + 'LinearRing':
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for subsubsubAttribute in subsubAttribute:
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if subsubsubAttribute.tag == self.tag + 'coordinates':
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for point in subsubsubAttribute.text.split():
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try:
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(longitude, latitude, altitude) = point.split(',')
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except:
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(longitude, latitude) = point.split(',')
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self.points.append((float(latitude), float(longitude)))
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if subAttribute.tag == self.tag + 'LinearRing':
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for subsubAttribute in subAttribute:
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if subsubAttribute.tag == self.tag + 'coordinates':
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for point in subsubAttribute.text.split():
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try:
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(longitude, latitude, altitude) = point.split(',')
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except:
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(longitude, latitude) = point.split(',')
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self.points.append((float(latitude), float(longitude)))
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def add_kml(self, kml_file):
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"""
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Add a kml file.
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The access right and validity must be verified before this method.
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"""
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tree = ETree.parse(kml_file)
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root = tree.getroot()
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self.tag = root.tag.replace('}kml','}')
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_LOG.debug("Tag version of kml file %s is %s" % (kml_file, self.tag))
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fname, extension = os.path.splitext(kml_file)
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fdir, kmlfile = os.path.split(fname)
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self.index = -1
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lineStrings = tree.findall('.//' + self.tag + 'Placemark')
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for attributes in lineStrings:
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for subAttribute in attributes:
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if subAttribute.tag == self.tag + 'name':
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self.name = subAttribute.text
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if subAttribute.tag == self.tag + 'Polygon':
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self.type = 'Polygon'
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self.points = []
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self.polygon(subAttribute)
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if self.name == "":
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self.polygons.append((kmlfile, self.points))
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else:
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self.polygons.append((self.name, self.points))
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if subAttribute.tag == self.tag + 'Point':
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self.type = 'Point'
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self.points = []
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for subsubAttribute in subAttribute:
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if subsubAttribute.tag == self.tag + 'coordinates':
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for point in subsubAttribute.text.split():
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try:
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(longitude, latitude, altitude) = point.split(',')
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except:
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(longitude, latitude) = point.split(',')
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self.points.append((float(latitude), float(longitude)))
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if self.name == "":
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self.dots.append((kmlfile, self.points))
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else:
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self.dots.append((self.name, self.points))
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if subAttribute.tag == self.tag + 'LineString':
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self.type = 'Path'
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self.points = []
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for subsubAttribute in subAttribute:
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if subsubAttribute.tag == self.tag + 'coordinates':
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for point in subsubAttribute.text.split():
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try:
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(longitude, latitude, altitude) = point.split(',')
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except:
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(longitude, latitude) = point.split(',')
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self.points.append((float(latitude), float(longitude)))
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if self.name == "":
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self.paths.append((kmlfile, self.points))
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else:
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self.paths.append((self.name, self.points))
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def do_draw(self, gpsmap, ctx):
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"""
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Draw all the messages
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"""
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color1 = Gdk.color_parse('red')
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color2 = Gdk.color_parse('blue')
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# We don't display self.dots. use markers.
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for polygon in self.polygons:
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(name, points) = polygon
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map_points = []
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for point in points:
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conv_pt = osmgpsmap.MapPoint.new_degrees(point[0], point[1])
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coord_x, coord_y = gpsmap.convert_geographic_to_screen(conv_pt)
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map_points.append((coord_x, coord_y))
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first = True
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ctx.save()
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ctx.set_source_rgba(float(color2.red / 65535.0),
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float(color2.green / 65535.0),
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float(color2.blue / 65535.0),
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0.3) # transparency
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ctx.set_line_cap(cairo.LINE_CAP_ROUND)
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ctx.set_line_join(cairo.LINE_JOIN_ROUND)
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ctx.set_line_width(3)
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ctx.new_path()
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for idx_pt in range(0, len(map_points)):
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if first:
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first = False
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ctx.move_to(map_points[idx_pt][0], map_points[idx_pt][1])
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else:
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ctx.line_to(map_points[idx_pt][0], map_points[idx_pt][1])
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ctx.close_path()
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ctx.fill()
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ctx.restore()
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for path in self.paths:
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(name, points) = path
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map_points = []
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for point in points:
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conv_pt = osmgpsmap.MapPoint.new_degrees(point[0], point[1])
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coord_x, coord_y = gpsmap.convert_geographic_to_screen(conv_pt)
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map_points.append((coord_x, coord_y))
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first = True
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ctx.save()
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ctx.set_source_rgba(float(color1.red / 65535.0),
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float(color1.green / 65535.0),
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float(color1.blue / 65535.0),
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0.5) # transparency
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ctx.set_line_width(5)
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ctx.set_operator(cairo.OPERATOR_ATOP)
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for idx_pt in range(0, len(map_points)):
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if first:
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first = False
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ctx.move_to(map_points[idx_pt][0], map_points[idx_pt][1])
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else:
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ctx.line_to(map_points[idx_pt][0], map_points[idx_pt][1])
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ctx.stroke()
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ctx.restore()
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def do_render(self, gpsmap):
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"""
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render the layer
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"""
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pass
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def do_busy(self):
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"""
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set the layer busy
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"""
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return False
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def do_button_press(self, gpsmap, gdkeventbutton):
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"""
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When we press a button.
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"""
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return False
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GObject.type_register(KmlLayer)
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