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geography : some minor tweaks for kml and prepare for feature request 08428

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SNoiraud 2015-03-17 19:35:58 +01:00 committed by Ross Gammon
parent 588e2f9427
commit 7afda11c9b
1 changed files with 68 additions and 140 deletions
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118
gramps/plugins/lib/maps/kmllayer.py
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@ -54,6 +54,7 @@ from gi.repository import Pango, PangoCairo
# Gramps Modules
#
#-------------------------------------------------------------------------
from .libkml import Kml
#-------------------------------------------------------------------------
#
@ -72,15 +73,14 @@ class KmlLayer(GObject.GObject, osmgpsmap.MapLayer):
* Allowed : points, paths and polygons.
* One point : name, (latitude, longitude)
* One path : name, [ (latitude, longitude), (latitude, longitude), ...]
* One polygon : name, fill, [ (latitude, longitude), (latitude, longitude), ...]
* One path : name, type, color, transparency, [ (latitude, longitude), (latitude, longitude), ...]
* One polygon : name, type, color, transparency, [ (latitude, longitude), (latitude, longitude), ...]
"""
def __init__(self):
"""
Initialize the layer
"""
GObject.GObject.__init__(self)
self.dots = []
self.paths = []
self.polygons = []
self.tag = ""
@ -92,111 +92,31 @@ class KmlLayer(GObject.GObject, osmgpsmap.MapLayer):
"""
reset the layer attributes.
"""
self.dots = []
self.paths = []
self.polygons = []
self.name = ""
def polygon(self, attributes):
self.points = []
for subAttribute in attributes:
if subAttribute.tag == self.tag + 'outerBoundaryIs':
for subsubAttribute in subAttribute:
if subsubAttribute.tag == self.tag + 'LinearRing':
for subsubsubAttribute in subsubAttribute:
if subsubsubAttribute.tag == self.tag + 'coordinates':
for point in subsubsubAttribute.text.split():
try:
(longitude, latitude, altitude) = point.split(',')
except:
(longitude, latitude) = point.split(',')
self.points.append((float(latitude), float(longitude)))
if subAttribute.tag == self.tag + 'innerBoundaryIs':
for subsubAttribute in subAttribute:
if subsubAttribute.tag == self.tag + 'LinearRing':
for subsubsubAttribute in subsubAttribute:
if subsubsubAttribute.tag == self.tag + 'coordinates':
for point in subsubsubAttribute.text.split():
try:
(longitude, latitude, altitude) = point.split(',')
except:
(longitude, latitude) = point.split(',')
self.points.append((float(latitude), float(longitude)))
if subAttribute.tag == self.tag + 'LinearRing':
for subsubAttribute in subAttribute:
if subsubAttribute.tag == self.tag + 'coordinates':
for point in subsubAttribute.text.split():
try:
(longitude, latitude, altitude) = point.split(',')
except:
(longitude, latitude) = point.split(',')
self.points.append((float(latitude), float(longitude)))
def add_kml(self, kml_file):
"""
Add a kml file.
The access right and validity must be verified before this method.
"""
tree = ETree.parse(kml_file)
root = tree.getroot()
self.tag = root.tag.replace('}kml','}')
_LOG.debug("Tag version of kml file %s is %s" % (kml_file, self.tag))
fname, extension = os.path.splitext(kml_file)
fdir, kmlfile = os.path.split(fname)
self.index = -1
lineStrings = tree.findall('.//' + self.tag + 'Placemark')
for attributes in lineStrings:
for subAttribute in attributes:
if subAttribute.tag == self.tag + 'name':
self.name = subAttribute.text
if subAttribute.tag == self.tag + 'Polygon':
self.type = 'Polygon'
self.points = []
self.polygon(subAttribute)
if self.name == "":
self.polygons.append((kmlfile, self.points))
else:
self.polygons.append((self.name, self.points))
if subAttribute.tag == self.tag + 'Point':
self.type = 'Point'
self.points = []
for subsubAttribute in subAttribute:
if subsubAttribute.tag == self.tag + 'coordinates':
for point in subsubAttribute.text.split():
try:
(longitude, latitude, altitude) = point.split(',')
except:
(longitude, latitude) = point.split(',')
self.points.append((float(latitude), float(longitude)))
if self.name == "":
self.dots.append((kmlfile, self.points))
else:
self.dots.append((self.name, self.points))
if subAttribute.tag == self.tag + 'LineString':
self.type = 'Path'
self.points = []
for subsubAttribute in subAttribute:
if subsubAttribute.tag == self.tag + 'coordinates':
for point in subsubAttribute.text.split():
try:
(longitude, latitude, altitude) = point.split(',')
except:
(longitude, latitude) = point.split(',')
self.points.append((float(latitude), float(longitude)))
if self.name == "":
self.paths.append((kmlfile, self.points))
else:
self.paths.append((self.name, self.points))
self.kml = Kml(kml_file)
(paths, polygons) = self.kml.add_kml()
if paths != []:
self.paths.append(paths)
if polygons != []:
self.polygons.append(polygons)
def do_draw(self, gpsmap, ctx):
"""
Draw all the messages
Draw all the surfaces and paths
"""
color1 = Gdk.color_parse('red')
color2 = Gdk.color_parse('blue')
# We don't display self.dots. use markers.
for polygon in self.polygons:
(name, points) = polygon
for polygons in self.polygons:
for polygon in polygons:
(name, ptype, color, transparency, points) = polygon
map_points = []
for point in points:
conv_pt = osmgpsmap.MapPoint.new_degrees(point[0], point[1])
@ -219,10 +139,18 @@ class KmlLayer(GObject.GObject, osmgpsmap.MapLayer):
else:
ctx.line_to(map_points[idx_pt][0], map_points[idx_pt][1])
ctx.close_path()
if ptype == "Polygon":
ctx.stroke()
if ptype == "OuterPolygon":
ctx.fill()
if ptype == "InnerPolygon":
ctx.set_source_rgba(1.0, 1.0, 1.0, 0.3)
ctx.set_operator(cairo.OPERATOR_ADD)
ctx.fill()
ctx.restore()
for path in self.paths:
(name, points) = path
for paths in self.paths:
for path in paths:
(name, ptype, color, transparency, points) = path
map_points = []
for point in points:
conv_pt = osmgpsmap.MapPoint.new_degrees(point[0], point[1])