应用结果

代码 

#导入安装包
import os
import json
import datetime
import streamlit as st
import streamlit.components.v1 as components
import traceback
from PIL import Image

import aie

#读取当前目录的内容
current_work_dir = os.path.dirname(__file__)
#添加地图
collection_id = 'TJNU_3JECO_CHINA_DDEP_V01'


# 隐藏页面右上角的action bar按钮
hide_streamlit_action_button = """
        <style>
        #MainMenu {visibility: hidden;}
        </style>
"""
#设定地图分布，页面标题设定名称
st.set_page_config(layout="wide", page_title="AIE AppHub")
st.markdown(hide_streamlit_action_button, unsafe_allow_html=True)
# 调整边距 设定边距
st.markdown(" <style> div[class^='css-1544g2n'] { padding-top: 1px; } </style> ", unsafe_allow_html=True)
st.markdown(" <style> div[class^='block-container'] { padding-top: 1px; } </style> ", unsafe_allow_html=True)

# aie的初始化应用分析
def aie_init():
    '''
    AIE开发者SDK初始化
    请登录后访问https://engine-aiearth.aliyun.com/#/utility/auth-token  获取认证token，
    并将token设置为系统环境变量（变量名为SDK_TOKEN），以便下述代码获取并初始化SDK。
    '''
    token = os.environ.get("SDK_TOKEN")  # 请至应用空间设置-环境变量中添加SDK_TOKEN
    aie.Authenticate(token=token)
    aie.Initialize()

#这里我们需要让下面函数每一次进行运行，防止过渡运行。
@st.cache_resource
def get_default_aie_map():
    aie_map = aie.Map(
            center=[116.383331,39.916668],
            height=800,
            zoom=4)
    return aie_map.to_html()

# 定义初始化的函数
def page_reset_callback():
    st.session_state['region_province_select'] = '请选择'
    st.session_state['time_picker'] = [datetime.date(2020, 1, 1), datetime.date(2020, 1, 31)]
    st.session_state['render_map_html'] = get_default_aie_map()

#这里设定一个数据筛选函数，包含了地图矢量、底图，研究区，和图层
def aie_map_layer_assemble(year, month,parameter):
    # 拼接AIE 数据查询SDK语句
    aie_init()
    feature_collection = aie.FeatureCollection('China_Province')

    aie_map = aie.Map(
            center=feature_collection.getCenter(),
            height=800,
            zoom=3)

    region_vis_params = {
            'color': '#00FF00'
    }
    
    aie_map.addLayer(
            feature_collection,
            region_vis_params,
            '行政区划边界',
            bounds=feature_collection.getBounds()
    )

    year_mon = year + month
    image = aie.Image('ERA5_LAND_MONTHLY_' + year_mon ).clipToCollection(feature_collection)

#这里是复选框内容的选项
    if parameter=="temperature_2m" or parameter=="dewpoint_temperature_2m" or parameter=="soil_temperature_level_1" or parameter=="soil_temperature_level_2" or parameter=="soil_temperature_level_3" or parameter=="soil_temperature_level_4":
        para_image = image.select([parameter]).subtract(aie.Image.constant(273.15))
#这里我们选择后让其影像转化为摄氏度℃
    
#设定可视化参数
        vis_temp = {
        'min': -10,
        'max': 30,
        'palette': [
            "#000080","#0000D9","#4000FF","#8000FF","#0080FF", "#00FF80",
            "#00FF80","#80FF00","#DAFF00","#FFFF00","#FFF500","#FFDA00",
            "#FFB000","#FFA400","#FF4F00","#FF2500","#FF0A00","#FF00FF",
        ]
        }
#设定图层
        aie_map.addLayer(
        para_image,
        vis_temp,
        parameter +'(°C)',
        bounds=para_image.getBounds()
        )  
        ### 绘制图例 设定图例，这里从ipyleaflet导入图例
        from ipyleaflet import LegendControl  
#这里图例展示和颜色      
        legend = LegendControl({
                        '  < -10  ':'#000080',
                        '-10 - -5':'#