实体化 CSS 的 CSS 版本不可用

实体化 CSS 的 CSS 版本不可用

导入 dash
从 dash.dependencies 导入输出,输入
导入 dash_core_components 作为 dcc 导入 dash_html_components 作为 html
导入 plotly,随机
导入 plotly.graph_objs 作为 go
从 collections 导入 deque
从 pandas_datareader.data 导入 DataReader
导入时间,随机

app = dash.Dash('车辆数据')

max_length = 20
次 = 双队列(maxlen=max_length)
oil_temps = 双队列(maxlen=
max_length) intake_temps = 双队列(maxlen=max_length)
coolant_temps = 双队列(maxlen=max_length)
rpms = 双队列(maxlen=max_length)
速度 = 双队列(maxlen=max_length)
throttle_pos = 双队列(maxlen=max_length)

data_dict = {“油温”:oil_temps,
“进气温度”:intake_temps,
“冷却液温度”:coolant_temps,
“转速”:rpms,
“速度”:speeds,
“油门位置”:throttle_pos}

def update_obd_values(时间、油温、进气温度、冷却液温度、转速、速度、油门位置):

times.append(time.time())  
if len(times) == 1:  
    #starting relevant values  
    oil_temps.append(random.randrange(180,230))  
    intake_temps.append(random.randrange(95,115))  
    coolant_temps.append(random.randrange(170,220))  
    rpms.append(random.randrange(1000,9500))  
    speeds.append(random.randrange(30,140))  
    throttle_pos.append(random.randrange(10,90))  
else:  
    for data_of_interest in [oil_temps, intake_temps, coolant_temps, rpms, speeds, throttle_pos]:  
        data_of_interest.append(data_of_interest[-1]+data_of_interest[-1]*random.uniform(-0.0001,0.0001))  

return times, oil_temps, intake_temps, coolant_temps, rpms, speeds, throttle_pos  

时间、油温、进气温度、冷却液温度、转速、速度、油门位置 = update_obd_values(时间、油温、进气温度、冷却液温度、转速、速度、油门位置)

app.layout = html.Div([
html.Div([
html.H2('车辆数据',
style={'float': 'left',
}),
]),
dcc.Dropdown(id='vehicle-data-name',
options=[{'label': s, 'value': s}
for s in data_dict.keys()],
value=['冷却液温度','油温','进气温度'],
multi=True
),
html.Div(children=html.Div(id='graphs'), className='row'),
dcc.Interval(
id='graph-up​​date',
interval=100),
], className="container",style={'width':'98%','margin-left':10,'margin-right':10,'max-width':50000})

@app.callback(
dash.dependencies.Output('graphs','children'),
[dash.dependencies.Input('vehicle-data-name',
'value'),dash.dependencies.Input('graph-up​​date','n_intervals')]

def update_graph(data_names,n_intervals):
graphs = []
update_obd_values(时间、油温、进气温度、冷却液温度、转速、
速度、油门位置)如果 len(data_names)> 2:
class_choice ='col s12 m6
l4'elif len(data_names)== 2:
class_choice ='col s12 m6 l6'
否则:
class_choice ='col s12'

for data_name in data_names:  

    data = go.Scatter(  
        x=list(times),  
        y=list(data_dict[data_name]),  
        name='Scatter',  
        fill="tozeroy",  
        fillcolor="#6897bb"  
        )  

    graphs.append(html.Div(dcc.Graph(  
        id=data_name,  
        animate=True,  
        figure={'data': [data],'layout' : go.Layout(xaxis=dict(range=[min(times),max(times)]),  
                                                    yaxis=dict(range=[min(data_dict[data_name]),max(data_dict[data_name])]),  
                                                    margin={'l':50,'r':1,'t':45,'b':1},  
                                                    title='{}'.format(data_name))}  
        ), className=class_choice))  

return graphs  

外部css = [”https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css“]
对于 external_css 中的 css:
app.css.append_css({“external_url”: css})

external_js =
['https://cdnjs.cloudflare.com/ajax/libs/materialize/0.100.2/js/materialize.min.js']
对于 external_js 中的 js:
app.scripts.append_script({'external_url': js})

如果姓名== '主要的':
app.run_server(debug=True)

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