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no edit summary
==Usage==
==Usage==
=== Python ===
=== Python ===
Example demonstrating how to send LSL stream and marker data:
<syntaxhighlight lang="python" line>
<syntaxhighlight lang="python" line>
#!/usr/bin/env python3.10
#!/usr/bin/env python3.10
marker_outlet.push_sample(["Stop"])
marker_outlet.push_sample(["Stop"])
</syntaxhighlight>
the settings.py file for LSL:
<syntaxhighlight lang="python" line>
# settings.py
class BaseSettings:
"""Basisklasse met standaardinstellingen voor een LSL stream."""
def __init__(self):
self.stream_name = "BaseStream"
self.stream_type = "Unknown"
self.channel_count = 1
self.sample_rate = 0
self.channel_format = "float32"
self.source_id = "BaseSource"
self.channel_names = []
self.push_chunk_size = 1
self.push_interval = 0.001
self.use_random_data = False
self.dummy_string = "Test"
self.random_string_options = ["A", "B", "C"]
self.verbose = True
self.quit_method = "psychopy"
self.user_stop_message = "Press ENTER/RETURN to stop acquisition."
self.default_buffer = ["Test"]
# the scope is not implemented yet
self.scope = "lan"
def get_stream_options(self):
if self.scope in ["local", "lan", "internet"]:
return dict()
else:
raise ValueError(f"Unknown scope: {self.scope}")
class DynamicMultiChannelStreamSettings(BaseSettings):
def __init__(
self,
n_channels=8,
stream_name="DynamicStream",
stream_type="EEG",
sample_rate=256,
channel_format="float32",
channel_names=None
):
super().__init__()
self.stream_name = stream_name
self.stream_type = stream_type
self.channel_count = n_channels
self.sample_rate = sample_rate
self.channel_format = channel_format
self.source_id = f"{stream_name}_Source"
if channel_names is not None:
if len(channel_names) != n_channels:
raise ValueError(f"Number of channel names ({len(channel_names)}) does not match n_channels ({n_channels})")
self.channel_names = channel_names
else:
self.channel_names = [f"Chan{i+1}" for i in range(n_channels)]
self.default_buffer = [0.0 for _ in range(n_channels)]
class MarkerStreamSettings(BaseSettings):
def __init__(self):
super().__init__()
self.stream_name = "MarkerStream"
self.stream_type = "Markers"
self.channel_count = 1
self.sample_rate = 0 # 0 Hz = irregular sampling
self.channel_format = "string"
self.source_id = "MarkerSource"
self.channel_names = [] # niet nodig voor markers
self.default_buffer = ["TestMarker"]
</syntaxhighlight>
</syntaxhighlight>