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| import streamlit as st
import pandas as pd
from coord import gcj02_to_bd09, bd09_to_gcj02, wgs84_to_gcj02, gcj02_to_wgs84, bd09_to_wgs84, wgs84_to_bd09
st.set_page_config(page_title="坐标转换工具", layout="centered")
st.title("坐标转换工具")
tab1, tab2 = st.tabs(["单点转换", "批量转换"])
with tab1:
with st.form(key='single_point_form'):
st.subheader("单点转换")
col00, col01 = st.columns(2)
with col00:
source_system = st.selectbox("源坐标系", ["WGS84", "GCJ-02", "BD-09"])
with col01:
target_system_options = ["WGS84", "GCJ-02", "BD-09"]
target_system_options.remove(source_system)
target_system = st.selectbox("目标坐标系", target_system_options)
col1, col2 = st.columns(2)
with col1:
lng = st.number_input("经度", value=108.81001)
with col2:
lat = st.number_input("纬度", value=36.125376)
submit_button = st.form_submit_button(label='转换')
if submit_button:
if source_system == "WGS84" and target_system == "GCJ-02":
result = wgs84_to_gcj02(lng, lat)
elif source_system == "GCJ-02" and target_system == "WGS84":
result = gcj02_to_wgs84(lng, lat)
elif source_system == "GCJ-02" and target_system == "BD-09":
result = gcj02_to_bd09(lng, lat)
elif source_system == "BD-09" and target_system == "GCJ-02":
result = bd09_to_gcj02(lng, lat)
elif source_system == "BD-09" and target_system == "WGS84":
result = bd09_to_wgs84(lng, lat)
elif source_system == "WGS84" and target_system == "BD-09":
result = wgs84_to_bd09(lng, lat)
else:
result = (lng, lat)
st.write(f"转换结果：经度={result[0]}, 纬度={result[1]}")
with tab2:
st.subheader("批量转换")
st.info("请上传包含经度和纬度列的CSV文件。\n文件格式示例：")
st.write(pd.DataFrame({"经度": [120.0, 121.0], "纬度": [30.0, 31.0]}))
uploaded_file = st.file_uploader("上传CSV文件", type=["csv"])
if uploaded_file is not None:
df = pd.read_csv(uploaded_file)
required_columns = {"经度", "纬度"}
if not required_columns.issubset(df.columns):
st.error("CSV文件必须包含“经度”和“纬度”两列。")
else:
with st.form(key='batch_conversion_form'):
col1, col2 = st.columns(2)
with col1:
source_system = st.selectbox("源坐标系（批量）", ["WGS84", "GCJ-02", "BD-09"])
with col2:
target_system_options = ["WGS84", "GCJ-02", "BD-09"]
target_system_options.remove(source_system)
target_system = st.selectbox("目标坐标系（批量）", target_system_options)
batch_convert_button = st.form_submit_button(label='批量转换')
if batch_convert_button:
results = []
for index, row in df.iterrows():
lng, lat = row['经度'], row['纬度']
if source_system == "WGS84" and target_system == "GCJ-02":
result = wgs84_to_gcj02(lng, lat)
elif source_system == "GCJ-02" and target_system == "WGS84":
result = gcj02_to_wgs84(lng, lat)
elif source_system == "GCJ-02" and target_system == "BD-09":
result = gcj02_to_bd09(lng, lat)
elif source_system == "BD-09" and target_system == "GCJ-02":
result = bd09_to_gcj02(lng, lat)
elif source_system == "BD-09" and target_system == "WGS84":
result = bd09_to_wgs84(lng, lat)
elif source_system == "WGS84" and target_system == "BD-09":
result = wgs84_to_bd09(lng, lat)
else:
result = (lng, lat)
results.append(result)
df['转换后经度'] = [r[0] for r in results]
df['转换后纬度'] = [r[1] for r in results]
st.dataframe(df)
st.markdown("""
<style>
body {
font-family: Arial, sans-serif;
}
</style>
""", unsafe_allow_html=True)
|
