geography : some minor tweaks for kml and prepare for feature request 08428
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SNoiraud
parent
fdc42a9693
commit
bb30862c1b
@ -54,6 +54,7 @@ from gi.repository import Pango, PangoCairo
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# Gramps Modules
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#
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#-------------------------------------------------------------------------
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from .libkml import Kml
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#-------------------------------------------------------------------------
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#
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@ -72,15 +73,14 @@ class KmlLayer(GObject.GObject, osmgpsmap.MapLayer):
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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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* One path : name, type, color, transparency, [ (latitude, longitude), (latitude, longitude), ...]
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* One polygon : name, type, color, transparency, [ (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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@ -92,158 +92,86 @@ class KmlLayer(GObject.GObject, osmgpsmap.MapLayer):
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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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self.kml = Kml(kml_file)
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(paths, polygons) = self.kml.add_kml()
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if paths != []:
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self.paths.append(paths)
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if polygons != []:
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self.polygons.append(polygons)
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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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Draw all the surfaces and paths
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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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for polygons in self.polygons:
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for polygon in polygons:
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(name, ptype, color, transparency, 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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if ptype == "Polygon":
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ctx.stroke()
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if ptype == "OuterPolygon":
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ctx.fill()
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if ptype == "InnerPolygon":
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ctx.set_source_rgba(1.0, 1.0, 1.0, 0.3)
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ctx.set_operator(cairo.OPERATOR_ADD)
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ctx.fill()
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ctx.restore()
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for paths in self.paths:
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for path in paths:
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(name, ptype, color, transparency, 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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