def __init__(self, actnode_topics=b''):
ctx = zmq.Context.instance()
self.event_io = ctx.socket(zmq.DEALER)
self.stream_in = ctx.socket(zmq.SUB)
self.poller = zmq.Poller()
self.host_id = b''
self.client_id = b'\x00' + os.urandom(4)
self.sender_id = b''
self.servers = dict()
self.act = b''
self.actroute = []
self.acttopics = actnode_topics
self.discovery = None
# Signals
self.nodes_changed = Signal('nodes_changed')
self.server_discovered = Signal('server_discovered')
self.signal_quit = Signal('quit')
self.event_received = Signal('event_received')
self.stream_received = Signal('stream_received')
# Tell bluesky that this client will manage the network I/O
bluesky.net = self
# If no other object is taking care of this, let this client act as screen object as well
if not bluesky.scr:
bluesky.scr = self
def __init__(self):
super().__init__(ACTNODE_TOPICS)
self.nodedata = dict()
self.ref_nodedata = nodeData()
self.discovery_timer = None
self.timer = QTimer()
self.timer.timeout.connect(self.receive)
self.timer.start(20)
self.subscribe(b'SIMINFO')
self.subscribe(b'PLOT' + self.client_id)
self.subscribe(b'ROUTEDATA' + self.client_id)
# Signals
self.actnodedata_changed = Signal()
def __init__(self, glsurface, tilesource='opentopomap'):
super().__init__(target=glh.Texture.Target2DArray)
self.threadpool = QThreadPool()
tileinfo = bs.settings.tile_sources.get(tilesource)
if not tileinfo:
raise KeyError(f'Tile source {tilesource} not found!')
max_dl = tileinfo.get('max_download_workers',
bs.settings.max_download_workers)
self.maxzoom = tileinfo.get('max_tile_zoom', bs.settings.max_tile_zoom)
self.threadpool.setMaxThreadCount(
min(bs.settings.max_download_workers, max_dl))
self.tileslot = TiledTexture.SlotHolder(self.load_tile)
self.tilesource = tilesource
self.tilesize = (256, 256)
self.curtileext = (0, 0, 0, 0)
self.curtilezoom = 1
self.curtiles = OrderedDict()
self.fullscreen = False
self.offsetscale = np.array([0, 0, 1], dtype=np.float32)
self.bbox = list()
self.glsurface = glsurface
self.indextexture = glh.Texture(target=glh.Texture.Target2D)
self.indexsampler_loc = 0
self.arraysampler_loc = 0
bs.net.actnodedata_changed.connect(self.actdata_changed)
Signal('panzoom').connect(self.on_panzoom_changed)
def __init__(self, actnode_topics=b''):
ctx = zmq.Context.instance()
self.event_io = ctx.socket(zmq.DEALER)
self.stream_in = ctx.socket(zmq.SUB)
self.poller = zmq.Poller()
self.host_id = b''
self.client_id = b'\x00' + os.urandom(4)
self.sender_id = b''
self.servers = dict()
self.act = b''
self.actroute = []
self.acttopics = actnode_topics
self.discovery = None
# Signals
self.nodes_changed = Signal()
self.server_discovered = Signal()
self.signal_quit = Signal()
self.event_received = Signal()
self.stream_received = Signal()
# Tell bluesky that this client will manage the network I/O
bluesky.net = self
def __init__(self, parent=None):
super().__init__(parent)
self.prevwidth = self.prevheight = 600
self.panlat = 0.0
self.panlon = 0.0
self.zoom = 1.0
self.ar = 1.0
self.flat_earth = 1.0
self.wraplon = int(-999)
self.wrapdir = int(0)
self.initialized = False
self.panzoomchanged = False
self.mousedragged = False
self.mousepos = (0, 0)
self.prevmousepos = (0, 0)
self.shaderset = RadarShaders(self)
self.set_shaderset(self.shaderset)
# Add default objects
self.addobject(Map(parent=self))
self.addobject(Traffic(parent=self))
self.addobject(Navdata(parent=self))
self.addobject(Poly(parent=self))
self.setAttribute(Qt.WidgetAttribute.WA_AcceptTouchEvents, True)
self.grabGesture(Qt.GestureType.PanGesture)
self.grabGesture(Qt.GestureType.PinchGesture)
# self.grabGesture(Qt.SwipeGesture)
self.setMouseTracking(True)
# Signals and slots
bs.net.actnodedata_changed.connect(self.actdata_changed)
self.mouse_event = Signal('radarmouse')
self.panzoom_event = Signal('panzoom')
class Client:
''' Base class for (GUI) clients of a BlueSky server. '''
def __init__(self, actnode_topics=b''):
ctx = zmq.Context.instance()
self.event_io = ctx.socket(zmq.DEALER)
self.stream_in = ctx.socket(zmq.SUB)
self.poller = zmq.Poller()
self.host_id = b''
self.client_id = b'\x00' + os.urandom(4)
self.sender_id = b''
self.servers = dict()
self.act = b''
self.actroute = []
self.acttopics = actnode_topics
self.discovery = None
# Signals
self.nodes_changed = Signal('nodes_changed')
self.server_discovered = Signal('server_discovered')
self.signal_quit = Signal('quit')
self.event_received = Signal('event_received')
self.stream_received = Signal('stream_received')
# Tell bluesky that this client will manage the network I/O
bluesky.net = self
# If no other object is taking care of this, let this client act as screen object as well
if not bluesky.scr:
bluesky.scr = self
def start_discovery(self):
''' Start UDP-based discovery of available BlueSky servers. '''
if not self.discovery:
self.discovery = Discovery(self.client_id)
self.poller.register(self.discovery.handle, zmq.POLLIN)
self.discovery.send_request()
def stop_discovery(self):
''' Stop UDP-based discovery. '''
if self.discovery:
self.poller.unregister(self.discovery.handle)
self.discovery = None
def get_hostid(self):
''' Return the id of the host that this client is connected to. '''
return self.host_id
def sender(self):
''' Return the id of the sender of the most recent event. '''
return self.sender_id
def event(self, name, data, sender_id):
''' Default event handler for Client. Override this function for added
functionality. '''
self.event_received.emit(name, data, sender_id)
def stream(self, name, data, sender_id):
''' Default stream handler for Client. Override this function for added
functionality. '''
self.stream_received.emit(name, data, sender_id)
def actnode_changed(self, newact):
''' Default actnode change handler for Client. Override or monkey-patch this function
to implement actual actnode change handling. '''
print('Client active node changed.')
def subscribe(self, streamname, node_id=b'', actonly=False):
''' Subscribe to a stream.
Arguments:
- streamname: The name of the stream to subscribe to
- node_id: The id of the node from which to receive the stream (optional)
- actonly: Set to true if you only want to receive this stream from
the active node.
'''
if actonly and not node_id and streamname not in self.acttopics:
self.acttopics.append(streamname)
node_id = self.act
self.stream_in.setsockopt(zmq.SUBSCRIBE, streamname + node_id)
def unsubscribe(self, streamname, node_id=b''):
''' Unsubscribe from a stream.
Arguments:
- streamname: The name of the stream to unsubscribe from.
- node_id: ID of the specific node to unsubscribe from.
This is also used when switching active nodes.
'''
if not node_id and streamname in self.acttopics:
self.acttopics.remove(streamname)
node_id = self.act
self.stream_in.setsockopt(zmq.UNSUBSCRIBE, streamname + node_id)
def connect(self,
hostname='localhost',
event_port=0,
stream_port=0,
protocol='tcp'):
''' Connect client to a server.
Arguments:
- hostname: Network name or ip of the server to connect to
- event_port: Network port to use for event communication
- stream_port: Network port to use for stream communication
- protocol: Network protocol to use
'''
conbase = '{}://{}'.format(protocol, hostname)
econ = conbase + (':{}'.format(event_port) if event_port else '')
scon = conbase + (':{}'.format(stream_port) if stream_port else '')
self.event_io.setsockopt(zmq.IDENTITY, self.client_id)
self.event_io.connect(econ)
self.send_event(b'REGISTER')
self.host_id = self.event_io.recv_multipart()[0]
print('Client {} connected to host {}'.format(self.client_id,
self.host_id))
self.stream_in.connect(scon)
self.poller.register(self.event_io, zmq.POLLIN)
self.poller.register(self.stream_in, zmq.POLLIN)
def echo(self, text, flags=None, sender_id=None):
''' Default client echo function. Prints to console.
Overload this function to process echo text in your GUI. '''
print(text)
def update(self):
''' Client periodic update function.
Periodically call this function to allow client to receive and process data.
'''
self.receive()
# Process any waiting stacked commands
process()
def receive(self, timeout=0):
''' Poll for incoming data from Server, and receive if available.
Arguments:
timeout: The polling timeout in milliseconds. '''
try:
socks = dict(self.poller.poll(timeout))
if socks.get(self.event_io) == zmq.POLLIN:
msg = self.event_io.recv_multipart()
# Remove send-to-all flag if present
if msg[0] == b'*':
msg.pop(0)
route, eventname, data = msg[:-2], msg[-2], msg[-1]
self.sender_id = route[0]
route.reverse()
pydata = msgpack.unpackb(data,
object_hook=decode_ndarray,
raw=False)
if eventname == b'STACK':
stack(pydata, sender_id=self.sender_id)
elif eventname == b'ECHO':
self.echo(**pydata, sender_id=self.sender_id)
elif eventname == b'NODESCHANGED':
self.servers.update(pydata)
self.nodes_changed.emit(pydata)
# If this is the first known node, select it as active node
nodes_myserver = next(iter(pydata.values())).get('nodes')
if not self.act and nodes_myserver:
self.actnode(nodes_myserver[0])
elif eventname == b'QUIT':
self.signal_quit.emit()
else:
self.event(eventname, pydata, self.sender_id)
if socks.get(self.stream_in) == zmq.POLLIN:
msg = self.stream_in.recv_multipart()
strmname = msg[0][:-5]
sender_id = msg[0][-5:]
pydata = msgpack.unpackb(msg[1],
object_hook=decode_ndarray,
raw=False)
self.stream(strmname, pydata, sender_id)
# If we are in discovery mode, parse this message
if self.discovery and socks.get(self.discovery.handle.fileno()):
dmsg = self.discovery.recv_reqreply()
if dmsg.conn_id != self.client_id and dmsg.is_server:
self.server_discovered.emit(dmsg.conn_ip, dmsg.ports)
except zmq.ZMQError:
return False
def _getroute(self, target):
for srv in self.servers.values():
if target in srv['nodes']:
return srv['route']
return None
def actnode(self, newact=None):
''' Set the new active node, or return the current active node. '''
if newact:
route = self._getroute(newact)
if route is None:
print('Error selecting active node (unknown node)')
return None
# Unsubscribe from previous node, subscribe to new one.
if newact != self.act:
for topic in self.acttopics:
if self.act:
self.unsubscribe(topic, self.act)
self.subscribe(topic, newact)
self.actroute = route
self.act = newact
self.actnode_changed(newact)
return self.act
def addnodes(self, count=1):
''' Tell the server to add 'count' nodes. '''
self.send_event(b'ADDNODES', count)
def send_event(self, name, data=None, target=None):
''' Send an event to one or all simulation node(s).
Arguments:
- name: Name of the event
- data: Data to send as payload
- target: Destination of this event. Event is sent to all nodes
if * is specified as target.
'''
pydata = msgpack.packb(data, default=encode_ndarray, use_bin_type=True)
if not target:
self.event_io.send_multipart(self.actroute +
[self.act, name, pydata])
elif target == b'*':
self.event_io.send_multipart([target, name, pydata])
else:
self.event_io.send_multipart(
self._getroute(target) + [target, name, pydata])
class Client:
def __init__(self, actnode_topics=b''):
ctx = zmq.Context.instance()
self.event_io = ctx.socket(zmq.DEALER)
self.stream_in = ctx.socket(zmq.SUB)
self.poller = zmq.Poller()
self.host_id = b''
self.client_id = b'\x00' + os.urandom(4)
self.sender_id = b''
self.servers = dict()
self.act = b''
self.actroute = []
self.acttopics = actnode_topics
self.discovery = None
# Signals
self.nodes_changed = Signal()
self.server_discovered = Signal()
self.signal_quit = Signal()
self.event_received = Signal()
self.stream_received = Signal()
# Tell bluesky that this client will manage the network I/O
bluesky.net = self
def start_discovery(self):
if not self.discovery:
self.discovery = Discovery(self.client_id)
self.poller.register(self.discovery.handle, zmq.POLLIN)
self.discovery.send_request()
def stop_discovery(self):
if self.discovery:
self.poller.unregister(self.discovery.handle)
self.discovery = None
def get_hostid(self):
return self.host_id
def sender(self):
return self.sender_id
def event(self, name, data, sender_id):
''' Default event handler for Client. Override this function for added
functionality. '''
self.event_received.emit(name, data, sender_id)
def stream(self, name, data, sender_id):
''' Default stream handler for Client. Override this function for added
functionality. '''
self.stream_received.emit(name, data, sender_id)
def actnode_changed(self, newact):
''' Default actnode change handler for Client. Override or monkey-patch this function
to implement actual actnode change handling. '''
print('Client active node changed.')
def subscribe(self, streamname, node_id=b''):
''' Subscribe to a stream. '''
self.stream_in.setsockopt(zmq.SUBSCRIBE, streamname + node_id)
def unsubscribe(self, streamname, node_id=b''):
''' Unsubscribe from a stream. '''
self.stream_in.setsockopt(zmq.UNSUBSCRIBE, streamname + node_id)
def connect(self,
hostname='localhost',
event_port=0,
stream_port=0,
protocol='tcp'):
print(" Entering connect function")
conbase = '{}://{}'.format(protocol, hostname)
econ = conbase + (':{}'.format(event_port) if event_port else '')
scon = conbase + (':{}'.format(stream_port) if stream_port else '')
print(" econ: ", econ, " scon: ", scon)
self.event_io.setsockopt(zmq.IDENTITY, self.client_id)
print(" 2")
self.event_io.connect(econ)
print(" 3")
self.send_event(b'REGISTER')
print(" 4")
self.host_id = self.event_io.recv_multipart()[0]
print(" 5")
print('Client {} connected to host {}'.format(self.client_id,
self.host_id))
self.stream_in.connect(scon)
self.poller.register(self.event_io, zmq.POLLIN)
self.poller.register(self.stream_in, zmq.POLLIN)
def receive(self, timeout=0):
''' Poll for incoming data from Server, and receive if available.
Arguments:
timeout: The polling timeout in milliseconds. '''
try:
socks = dict(self.poller.poll(timeout))
if socks.get(self.event_io) == zmq.POLLIN:
msg = self.event_io.recv_multipart()
# Remove send-to-all flag if present
if msg[0] == b'*':
msg.pop(0)
route, eventname, data = msg[:-2], msg[-2], msg[-1]
self.sender_id = route[0]
route.reverse()
pydata = msgpack.unpackb(data,
object_hook=decode_ndarray,
raw=False)
if eventname == b'NODESCHANGED':
self.servers.update(pydata)
self.nodes_changed.emit(pydata)
# If this is the first known node, select it as active node
nodes_myserver = next(iter(pydata.values())).get('nodes')
if not self.act and nodes_myserver:
self.actnode(nodes_myserver[0])
elif eventname == b'QUIT':
self.signal_quit.emit()
else:
self.event(eventname, pydata, self.sender_id)
if socks.get(self.stream_in) == zmq.POLLIN:
msg = self.stream_in.recv_multipart()
strmname = msg[0][:-5]
sender_id = msg[0][-5:]
pydata = msgpack.unpackb(msg[1],
object_hook=decode_ndarray,
raw=False)
self.stream(strmname, pydata, sender_id)
# If we are in discovery mode, parse this message
if self.discovery and socks.get(self.discovery.handle.fileno()):
dmsg = self.discovery.recv_reqreply()
if dmsg.conn_id != self.client_id and dmsg.is_server:
self.server_discovered.emit(dmsg.conn_ip, dmsg.ports)
except zmq.ZMQError:
return False
def _getroute(self, target):
for srv in self.servers.values():
if target in srv['nodes']:
return srv['route']
return None
def actnode(self, newact=None):
if newact:
route = self._getroute(newact)
if route is None:
print('Error selecting active node (unknown node)')
return None
# Unsubscribe from previous node, subscribe to new one.
if newact != self.act:
for topic in self.acttopics:
if self.act:
self.unsubscribe(topic, self.act)
self.subscribe(topic, newact)
self.actroute = route
self.act = newact
self.actnode_changed(newact)
return self.act
def addnodes(self, count=1):
self.send_event(b'ADDNODES', count)
def send_event(self, name, data=None, target=None):
pydata = msgpack.packb(data, default=encode_ndarray, use_bin_type=True)
if not target:
self.event_io.send_multipart(self.actroute +
[self.act, name, pydata])
elif target == b'*':
self.event_io.send_multipart([target, name, pydata])
else:
self.event_io.send_multipart(
self._getroute(target) + [target, name, pydata])
class GuiClient(Client):
def __init__(self):
super().__init__(ACTNODE_TOPICS)
self.nodedata = dict()
self.ref_nodedata = nodeData()
self.discovery_timer = None
self.timer = QTimer()
self.timer.timeout.connect(self.update)
self.timer.start(20)
self.subscribe(b'SIMINFO')
self.subscribe(b'TRAILS')
self.subscribe(b'PLOT' + self.client_id)
self.subscribe(b'ROUTEDATA' + self.client_id)
# Signals
self.actnodedata_changed = Signal('actnodedata_changed')
def start_discovery(self):
super().start_discovery()
self.discovery_timer = QTimer()
self.discovery_timer.timeout.connect(self.discovery.send_request)
self.discovery_timer.start(3000)
def stop_discovery(self):
self.discovery_timer.stop()
self.discovery_timer = None
super().stop_discovery()
def stream(self, name, data, sender_id):
''' Guiclient stream handler. '''
changed = ''
actdata = self.get_nodedata(sender_id)
if name == b'ACDATA':
actdata.setacdata(data)
changed = name.decode('utf8')
elif name.startswith(b'ROUTEDATA'):
actdata.setroutedata(data)
changed = 'ROUTEDATA'
elif name == b'TRAILS':
actdata.settrails(**data)
changed = name.decode('utf8')
if sender_id == self.act and changed:
self.actnodedata_changed.emit(sender_id, actdata, changed)
super().stream(name, data, sender_id)
def echo(self, text, flags=None, sender_id=None):
''' Overloaded Client.echo function. '''
sender_data = self.get_nodedata(sender_id)
sender_data.echo(text, flags)
# If sender_id is None this is an echo command originating from the gui user, and therefore also meant for the active node
sender_id = sender_id or self.act
if sender_id == self.act:
self.actnodedata_changed.emit(sender_id, sender_data, ('ECHOTEXT',))
def event(self, name, data, sender_id):
sender_data = self.get_nodedata(sender_id)
data_changed = []
if name == b'RESET':
sender_data.clear_scen_data()
data_changed = list(UPDATE_ALL)
elif name == b'SHAPE':
sender_data.update_poly_data(**data)
data_changed.append('SHAPE')
elif name == b'COLOR':
sender_data.update_color_data(**data)
if 'polyid' in data:
data_changed.append('SHAPE')
elif name == b'DEFWPT':
sender_data.defwpt(**data)
data_changed.append('CUSTWPT')
elif name == b'DISPLAYFLAG':
sender_data.setflag(**data)
elif name == b'ECHO':
data_changed.append('ECHOTEXT')
elif name == b'PANZOOM':
sender_data.panzoom(**data)
data_changed.append('PANZOOM')
elif name == b'SIMSTATE':
sender_data.siminit(**data)
data_changed = list(UPDATE_ALL)
else:
super().event(name, data, sender_id)
if sender_id == self.act and data_changed:
self.actnodedata_changed.emit(sender_id, sender_data, data_changed)
def actnode_changed(self, newact):
self.actnodedata_changed.emit(newact, self.get_nodedata(newact), UPDATE_ALL)
def get_nodedata(self, nodeid=None):
nodeid = nodeid or self.act
if not nodeid:
return self.ref_nodedata
data = self.nodedata.get(nodeid)
if not data:
# If this is a node we haven't addressed yet: create dataset and
# request node settings
self.nodedata[nodeid] = data = nodeData()
self.send_event(b'GETSIMSTATE', target=nodeid)
return data
class RadarWidget(glh.RenderWidget):
''' The BlueSky radar view. '''
def __init__(self, parent=None):
super().__init__(parent)
self.prevwidth = self.prevheight = 600
self.panlat = 0.0
self.panlon = 0.0
self.zoom = 1.0
self.ar = 1.0
self.flat_earth = 1.0
self.wraplon = int(-999)
self.wrapdir = int(0)
self.initialized = False
self.panzoomchanged = False
self.mousedragged = False
self.mousepos = (0, 0)
self.prevmousepos = (0, 0)
self.shaderset = RadarShaders(self)
self.set_shaderset(self.shaderset)
# Add default objects
self.addobject(Map(parent=self))
self.addobject(Traffic(parent=self))
self.addobject(Navdata(parent=self))
self.addobject(Poly(parent=self))
self.setAttribute(Qt.WidgetAttribute.WA_AcceptTouchEvents, True)
self.grabGesture(Qt.GestureType.PanGesture)
self.grabGesture(Qt.GestureType.PinchGesture)
# self.grabGesture(Qt.SwipeGesture)
self.setMouseTracking(True)
# Signals and slots
bs.net.actnodedata_changed.connect(self.actdata_changed)
self.mouse_event = Signal('radarmouse')
self.panzoom_event = Signal('panzoom')
def actdata_changed(self, nodeid, nodedata, changed_elems):
''' Update buffers when a different node is selected, or when
the data of the current node is updated. '''
# Update pan/zoom
if 'PANZOOM' in changed_elems:
self.panzoom(pan=nodedata.pan, zoom=nodedata.zoom, absolute=True)
def initializeGL(self):
"""Initialize OpenGL, VBOs, upload data on the GPU, etc."""
super().initializeGL()
# Set initial values for the global uniforms
self.shaderset.set_wrap(self.wraplon, self.wrapdir)
self.shaderset.set_pan_and_zoom(self.panlat, self.panlon, self.zoom)
# background color
glh.gl.glClearColor(0.7, 0.7, 0.7, 0)
glh.gl.glEnable(glh.gl.GL_BLEND)
glh.gl.glBlendFunc(glh.gl.GL_SRC_ALPHA, glh.gl.GL_ONE_MINUS_SRC_ALPHA)
self.initialized = True
def resizeGL(self, width, height):
"""Called upon window resizing: reinitialize the viewport."""
# update the window size
# Calculate zoom so that the window resize doesn't affect the scale, but only enlarges or shrinks the view
zoom = float(self.prevwidth) / float(width)
origin = (width / 2, height / 2)
# Update width, height, and aspect ratio
self.prevwidth, self.prevheight = width, height
self.ar = float(width) / max(1, float(height))
self.shaderset.set_win_width_height(width, height)
# Update zoom
self.panzoom(zoom=zoom, origin=origin)
def pixelCoordsToGLxy(self, x, y):
"""Convert screen pixel coordinates to GL projection coordinates (x, y range -1 -- 1)
"""
# GL coordinates (x, y range -1 -- 1)
glx = (float(2.0 * x) / self.prevwidth - 1.0)
gly = -(float(2.0 * y) / self.prevheight - 1.0)
return glx, gly
def pixelCoordsToLatLon(self, x, y):
"""Convert screen pixel coordinates to lat/lon coordinates
"""
glx, gly = self.pixelCoordsToGLxy(x, y)
# glxy = zoom * (latlon - pan)
# latlon = pan + glxy / zoom
lat = self.panlat + gly / (self.zoom * self.ar)
lon = self.panlon + glx / (self.zoom * self.flat_earth)
return lat, lon
def viewportlatlon(self):
''' Return the viewport bounds in lat/lon coordinates. '''
return (self.panlat + 1.0 / (self.zoom * self.ar),
self.panlon - 1.0 / (self.zoom * self.flat_earth),
self.panlat - 1.0 / (self.zoom * self.ar),
self.panlon + 1.0 / (self.zoom * self.flat_earth))
def panzoom(self, pan=None, zoom=None, origin=None, absolute=False):
if not self.initialized:
return False
if pan:
# Absolute pan operation
if absolute:
self.panlat = pan[0]
self.panlon = pan[1]
# Relative pan operation
else:
self.panlat += pan[0]
self.panlon += pan[1]
# Don't pan further than the poles in y-direction
self.panlat = min(
max(self.panlat, -90.0 + 1.0 / (self.zoom * self.ar)),
90.0 - 1.0 / (self.zoom * self.ar))
# Update flat-earth factor and possibly zoom in case of very wide windows (> 2:1)
self.flat_earth = np.cos(np.deg2rad(self.panlat))
self.zoom = max(self.zoom, 1.0 / (180.0 * self.flat_earth))
if zoom:
if absolute:
# Limit zoom extents in x-direction to [-180:180], and in y-direction to [-90:90]
self.zoom = max(
zoom, 1.0 / min(90.0 * self.ar, 180.0 * self.flat_earth))
else:
prevzoom = self.zoom
glx, gly = self.pixelCoordsToGLxy(*origin) if origin else (0,
0)
self.zoom *= zoom
# Limit zoom extents in x-direction to [-180:180], and in y-direction to [-90:90]
self.zoom = max(
self.zoom,
1.0 / min(90.0 * self.ar, 180.0 * self.flat_earth))
# Correct pan so that zoom actions are around the mouse position, not around 0, 0
# glxy / zoom1 - pan1 = glxy / zoom2 - pan2
# pan2 = pan1 + glxy (1/zoom2 - 1/zoom1)
self.panlon = self.panlon - glx * \
(1.0 / self.zoom - 1.0 / prevzoom) / self.flat_earth
self.panlat = self.panlat - gly * \
(1.0 / self.zoom - 1.0 / prevzoom) / self.ar
# Don't pan further than the poles in y-direction
self.panlat = min(
max(self.panlat, -90.0 + 1.0 / (self.zoom * self.ar)),
90.0 - 1.0 / (self.zoom * self.ar))
# Update flat-earth factor
self.flat_earth = np.cos(np.deg2rad(self.panlat))
# Check for necessity wrap-around in x-direction
self.wraplon = -999.9
self.wrapdir = 0
if self.panlon + 1.0 / (self.zoom * self.flat_earth) < -180.0:
# The left edge of the map has passed the right edge of the screen: we can just change the pan position
self.panlon += 360.0
elif self.panlon - 1.0 / (self.zoom * self.flat_earth) < -180.0:
# The left edge of the map has passed the left edge of the screen: we need to wrap around to the left
self.wraplon = float(
np.ceil(360.0 + self.panlon - 1.0 /
(self.zoom * self.flat_earth)))
self.wrapdir = -1
elif self.panlon - 1.0 / (self.zoom * self.flat_earth) > 180.0:
# The right edge of the map has passed the left edge of the screen: we can just change the pan position
self.panlon -= 360.0
elif self.panlon + 1.0 / (self.zoom * self.flat_earth) > 180.0:
# The right edge of the map has passed the right edge of the screen: we need to wrap around to the right
self.wraplon = float(
np.floor(-360.0 + self.panlon + 1.0 /
(self.zoom * self.flat_earth)))
self.wrapdir = 1
self.shaderset.set_wrap(self.wraplon, self.wrapdir)
# update pan and zoom on GPU for all shaders
self.shaderset.set_pan_and_zoom(self.panlat, self.panlon, self.zoom)
# Update pan and zoom in centralized nodedata
bs.net.get_nodedata().panzoom((self.panlat, self.panlon), self.zoom)
self.panzoom_event.emit(False)
return True
def event(self, event):
''' Event handling for input events. '''
if event.type() == QEvent.Type.Wheel:
# For mice we zoom with control/command and the scrolwheel
if event.modifiers() & Qt.KeyboardModifier.ControlModifier:
origin = (event.pos().x(), event.pos().y())
zoom = 1.0
try:
if event.pixelDelta():
# High resolution scroll
zoom *= (1.0 + 0.01 * event.pixelDelta().y())
else:
# Low resolution scroll
zoom *= (1.0 + 0.001 * event.angleDelta().y())
except AttributeError:
zoom *= (1.0 + 0.001 * event.delta())
self.panzoomchanged = True
return self.panzoom(zoom=zoom, origin=origin)
# For touchpad scroll (2D) is used for panning
else:
try:
dlat = 0.01 * event.pixelDelta().y() / (self.zoom *
self.ar)
dlon = -0.01 * event.pixelDelta().x() / (self.zoom *
self.flat_earth)
self.panzoomchanged = True
return self.panzoom(pan=(dlat, dlon))
except AttributeError:
pass
# For touchpad, pinch gesture is used for zoom
elif event.type() == QEvent.Type.Gesture:
pan = zoom = None
dlat = dlon = 0.0
for g in event.gestures():
if g.gestureType() == Qt.GestureType.PinchGesture:
event.accept(g)
zoom = g.scaleFactor() * (zoom or 1.0)
if CORRECT_PINCH:
zoom /= g.lastScaleFactor()
elif g.gestureType() == Qt.GestureType.PanGesture:
event.accept(g)
if abs(g.delta().y() + g.delta().x()) > 1e-1:
dlat += 0.005 * g.delta().y() / (self.zoom * self.ar)
dlon -= 0.005 * g.delta().x() / (self.zoom *
self.flat_earth)
pan = (dlat, dlon)
if pan is not None or zoom is not None:
self.panzoomchanged = True
return self.panzoom(pan, zoom, self.mousepos)
elif event.type() == QEvent.Type.MouseButtonPress and event.button(
) & Qt.MouseButton.LeftButton:
self.mousedragged = False
# For mice we pan with control/command and mouse movement.
# Mouse button press marks the beginning of a pan
self.prevmousepos = (event.pos().x(), event.pos().y())
elif event.type() == QEvent.Type.MouseButtonRelease and \
event.button() & Qt.MouseButton.LeftButton and not self.mousedragged:
lat, lon = self.pixelCoordsToLatLon(event.pos().x(),
event.pos().y())
actdata = bs.net.get_nodedata()
tostack, tocmdline = radarclick(console.get_cmdline(), lat, lon,
actdata.acdata, actdata.routedata)
console.process_cmdline((tostack + '\n' +
tocmdline) if tostack else tocmdline)
elif event.type() == QEvent.Type.MouseMove:
self.mousedragged = True
self.mousepos = (event.pos().x(), event.pos().y())
if event.buttons() & Qt.MouseButton.LeftButton:
dlat = 0.003 * \
(event.pos().y() - self.prevmousepos[1]) / (self.zoom * self.ar)
dlon = 0.003 * \
(self.prevmousepos[0] - event.pos().x()) / \
(self.zoom * self.flat_earth)
self.prevmousepos = (event.pos().x(), event.pos().y())
self.panzoomchanged = True
return self.panzoom(pan=(dlat, dlon))
elif event.type() == QEvent.Type.TouchBegin:
# Accept touch start to enable reception of follow-on touch update and touch end events
event.accept()
# Update pan/zoom to simulation thread only when the pan/zoom gesture is finished
elif (event.type() == QEvent.Type.MouseButtonRelease
or event.type() == QEvent.Type.TouchEnd) and self.panzoomchanged:
self.panzoomchanged = False
bs.net.send_event(
b'PANZOOM',
dict(pan=(self.panlat, self.panlon),
zoom=self.zoom,
ar=self.ar,
absolute=True))
self.panzoom_event.emit(True)
else:
return super().event(event)
# If we get here, the event was a mouse/trackpad event. Emit it to interested children
self.mouse_event.emit(event)
# For all other events call base class event handling
return True
class GuiClient(Client):
def __init__(self):
super().__init__(ACTNODE_TOPICS)
self.nodedata = dict()
self.ref_nodedata = nodeData()
self.discovery_timer = None
self.timer = QTimer()
self.timer.timeout.connect(self.receive)
self.timer.start(20)
self.subscribe(b'SIMINFO')
self.subscribe(b'PLOT' + self.client_id)
self.subscribe(b'ROUTEDATA' + self.client_id)
# Signals
self.actnodedata_changed = Signal()
def start_discovery(self):
super().start_discovery()
self.discovery_timer = QTimer()
self.discovery_timer.timeout.connect(self.discovery.send_request)
self.discovery_timer.start(3000)
def stop_discovery(self):
self.discovery_timer.stop()
self.discovery_timer = None
super().stop_discovery()
def event(self, name, data, sender_id):
sender_data = self.get_nodedata(sender_id)
data_changed = []
if name == b'RESET':
sender_data.clear_scen_data()
data_changed = list(UPDATE_ALL)
elif name == b'SHAPE':
sender_data.update_poly_data(**data)
data_changed.append('SHAPE')
elif name == b'COLOR':
sender_data.update_color_data(**data)
if 'polyid' in data:
data_changed.append('SHAPE')
elif name == b'DEFWPT':
sender_data.defwpt(**data)
data_changed.append('CUSTWPT')
elif name == b'DISPLAYFLAG':
sender_data.setflag(**data)
elif name == b'ECHO':
sender_data.echo(**data)
data_changed.append('ECHOTEXT')
elif name == b'PANZOOM':
sender_data.panzoom(**data)
data_changed.append('PANZOOM')
elif name == b'SIMSTATE':
sender_data.siminit(**data)
data_changed = list(UPDATE_ALL)
else:
super().event(name, data, sender_id)
if sender_id == self.act and data_changed:
self.actnodedata_changed.emit(sender_id, sender_data, data_changed)
def actnode_changed(self, newact):
self.actnodedata_changed.emit(newact, self.get_nodedata(newact), UPDATE_ALL)
def get_nodedata(self, nodeid=None):
nodeid = nodeid or self.act
if not nodeid:
return self.ref_nodedata
data = self.nodedata.get(nodeid)
if not data:
# If this is a node we haven't addressed yet: create dataset and
# request node settings
self.nodedata[nodeid] = data = nodeData()
self.send_event(b'GETSIMSTATE', target=nodeid)
return data
