/
belief_charts.py
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/
belief_charts.py
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from __future__ import annotations
from datetime import datetime, timedelta
from flexmeasures.data.models.charts.defaults import FIELD_DEFINITIONS
from flexmeasures.utils.flexmeasures_inflection import capitalize
def bar_chart(
sensor: "Sensor", # noqa F821
event_starts_after: datetime | None = None,
event_ends_before: datetime | None = None,
**override_chart_specs: dict,
):
unit = sensor.unit if sensor.unit else "a.u."
event_value_field_definition = dict(
title=f"{capitalize(sensor.sensor_type)} ({unit})",
format=[".3~r", unit],
formatType="quantityWithUnitFormat",
stack=None,
**FIELD_DEFINITIONS["event_value"],
)
event_start_field_definition = FIELD_DEFINITIONS["event_start"]
if event_starts_after and event_ends_before:
event_start_field_definition["scale"] = {
"domain": [
event_starts_after.timestamp() * 10**3,
event_ends_before.timestamp() * 10**3,
]
}
resolution_in_ms = sensor.event_resolution.total_seconds() * 1000
chart_specs = {
"description": "A simple bar chart showing sensor data.",
"title": capitalize(sensor.name) if sensor.name != sensor.sensor_type else None,
"mark": {
"type": "bar",
"clip": True,
},
"encoding": {
"x": event_start_field_definition,
"x2": FIELD_DEFINITIONS["event_end"],
"y": event_value_field_definition,
"color": FIELD_DEFINITIONS["source_name"],
"detail": FIELD_DEFINITIONS["source"],
"opacity": {"value": 0.7},
"tooltip": [
FIELD_DEFINITIONS["full_date"],
{
**event_value_field_definition,
**dict(title=f"{capitalize(sensor.sensor_type)}"),
},
FIELD_DEFINITIONS["source_name"],
FIELD_DEFINITIONS["source_model"],
],
},
"transform": [
{
"calculate": f"datum.event_start + {resolution_in_ms}",
"as": "event_end",
},
],
}
for k, v in override_chart_specs.items():
chart_specs[k] = v
return chart_specs
def chart_for_multiple_sensors(
sensors: list["Sensor"], # noqa F821
event_starts_after: datetime | None = None,
event_ends_before: datetime | None = None,
**override_chart_specs: dict,
):
sensors_specs = []
condition = list(
sensor.event_resolution
for sensor in sensors
if sensor.event_resolution > timedelta(0)
)
minimum_non_zero_resolution_in_ms = (
min(condition).total_seconds() * 1000 if any(condition) else 0
)
for sensor in sensors:
unit = sensor.unit if sensor.unit else "a.u."
event_value_field_definition = dict(
title=f"{capitalize(sensor.sensor_type)} ({unit})",
format=[".3~r", unit],
formatType="quantityWithUnitFormat",
stack=None,
**FIELD_DEFINITIONS["event_value"],
)
event_start_field_definition = FIELD_DEFINITIONS["event_start"]
if event_starts_after and event_ends_before:
event_start_field_definition["scale"] = {
"domain": [
event_starts_after.timestamp() * 10**3,
event_ends_before.timestamp() * 10**3,
]
}
shared_tooltip = [
FIELD_DEFINITIONS["full_date"],
{
**event_value_field_definition,
**dict(title=f"{capitalize(sensor.sensor_type)}"),
},
FIELD_DEFINITIONS["source_name"],
FIELD_DEFINITIONS["source_model"],
]
sensor_specs = {
"title": capitalize(sensor.name)
if sensor.name != sensor.sensor_type
else None,
"transform": [{"filter": f"datum.sensor.id == {sensor.id}"}],
"layer": [
{
"mark": {
"type": "line",
"interpolate": "step-after"
if sensor.event_resolution != timedelta(0)
else "linear",
"clip": True,
},
"encoding": {
"x": event_start_field_definition,
"y": event_value_field_definition,
"color": FIELD_DEFINITIONS["source_name"],
"detail": FIELD_DEFINITIONS["source"],
},
},
{
"mark": {
"type": "rect",
"y2": "height",
"opacity": 0,
},
"encoding": {
"x": event_start_field_definition,
"x2": FIELD_DEFINITIONS["event_end"],
"y": {
"condition": {
"test": "isNaN(datum['event_value'])",
**event_value_field_definition,
},
"value": 0,
},
"detail": FIELD_DEFINITIONS["source"],
"tooltip": shared_tooltip,
},
"transform": [
{
"calculate": f"datum.event_start + {minimum_non_zero_resolution_in_ms}",
"as": "event_end",
},
],
},
{
"mark": {
"type": "circle",
"opacity": 1,
"clip": True,
},
"encoding": {
"x": event_start_field_definition,
"y": event_value_field_definition,
"color": FIELD_DEFINITIONS["source_name"],
"detail": FIELD_DEFINITIONS["source"],
"size": {
"condition": {
"value": "200",
"test": {"param": "paintbrush", "empty": False},
},
"value": "0",
},
"tooltip": shared_tooltip,
},
"params": [
{
"name": "paintbrush",
"select": {
"type": "point",
"encodings": ["x"],
"on": "mouseover",
"nearest": False,
},
},
],
},
],
"width": "container",
}
sensors_specs.append(sensor_specs)
chart_specs = dict(
description="A vertically concatenated chart showing sensor data.",
vconcat=[*sensors_specs],
spacing=100,
bounds="flush",
)
chart_specs["config"] = {
"view": {"continuousWidth": 800, "continuousHeight": 150},
"autosize": {"type": "fit-x", "contains": "padding"},
}
chart_specs["resolve"] = {"scale": {"x": "shared"}}
for k, v in override_chart_specs.items():
chart_specs[k] = v
return chart_specs