class LeggerMapVisualisation(object):
# self.line_layer.crs()
def __init__(self, iface, source_crs):
self.iface = iface
self.source_crs = source_crs
# temp layer for side profile trac
self.rb = QgsRubberBand(self.iface.mapCanvas())
self.rb.setColor(Qt.red)
self.rb.setWidth(2)
# temp layer for last selected point
self.point_markers = []
self.active_route = None
self.hover_marker = QgsVertexMarker(self.iface.mapCanvas())
self.hover_marker.setIconType(QgsVertexMarker.ICON_X)
self.hover_marker.setColor(Qt.red)
self.hover_marker.setPenWidth(6)
self.dist_calc = QgsDistanceArea()
def close(self):
self.reset()
self.iface.mapCanvas().scene().removeItem(self.hover_marker)
def set_sideview_route(self, route):
self.reset()
self.active_route = route
transform = QgsCoordinateTransform(
self.source_crs,
self.iface.mapCanvas().mapRenderer().destinationCrs())
for pnt in route.path_vertexes:
t_pnt = transform.transform(pnt)
self.rb.addPoint(t_pnt)
for point, point_id, dist in route.path_points:
marker = QgsVertexMarker(self.iface.mapCanvas())
marker.setIconType(QgsVertexMarker.ICON_CIRCLE)
marker.setColor(Qt.red)
marker.setPenWidth(4)
marker.setCenter(transform.transform(point))
self.point_markers.append(marker)
def reset(self):
self.rb.reset()
self.active_route = None
for marker in self.point_markers:
self.iface.mapCanvas().scene().removeItem(marker)
self.point_markers = []
self.hover_marker.setCenter(QgsPoint(0.0, 0.0))
def hover_graph(self, meters_from_start):
transform = QgsCoordinateTransform(
self.source_crs,
self.iface.mapCanvas().mapRenderer().destinationCrs())
if self.active_route is None:
return
if meters_from_start < 0.0:
meters_from_start = 0.0
elif (len(self.active_route.path) > 0 and
meters_from_start > self.active_route.path[-1][-1][1]):
meters_from_start = self.active_route.path[-1][-1][1]
for route_part in self.active_route.path:
if meters_from_start <= route_part[-1][1]:
for part in route_part:
if meters_from_start <= part[1]:
if part[3] == 1:
distance_on_line = meters_from_start - part[0]
else:
distance_on_line = part[1] - meters_from_start
length, unit_type = self.dist_calc.convertMeasurement(
distance_on_line,
QGis.Meters, QGis.Degrees, False) # QGis.Degrees
point = part[4].geometry().interpolate(length)
self.hover_marker.setCenter(
transform.transform(point.asPoint()))
return
def hover_map(self, point_geometry):
pass
def show_selectable_points(self, graph_tree):
pass
def hide_selectable_points(self):
pass