完成基本功能。

transformer/__init__.py

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+from pyproj import Transformer
+
+
+class Projector:
+    def __init__(self, from_epsg, to_epsg):
+        self._transformer = Transformer.from_crs(from_epsg, to_epsg)
+
+    def transform(self, y_lat, x_lon):
+        transformer = self._transformer
+        lat_y, lon_x = transformer.transform(y_lat, x_lon)
+        return lat_y, lon_x
+
+
+EPSG_WGS_84 = "epsg:4326"
+EPSG_Xian_1980_105E = "epsg:4507"
+EPSG_CGCS_2000_108E = "epsg:4545"
+# _transformer_84_yx = Transformer.from_crs("epsg:4326", "epsg:4507")
+# _transformer_yx_84 = Transformer.from_crs("epsg:4507", "epsg:4326")
+
+# WGS 84 坐标转平面
+# latitude 纬度
+# longitude 经度
+
+
+# def wgs_84_yx(latitude, longitude, _elevation):
+#     y, x = _transformer_84_yx.transform(latitude, longitude)  # lon 和lat 可以是元组
+#     return y, x
+#
+#
+# def yx_wgs_84(y, x, _elevation):
+#     latitude, longitude = _transformer_yx_84.transform(y, x)  # lon 和lat 可以是元组
+#     return latitude, longitude
+#
+# def yx_2000_wgs_84(y, x, _elevation):

transformer/exporter.py

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+from xml.dom import minidom
+import numpy as np
+import transformer
+import pandas as pd
+import xml.etree.ElementTree as ET
+
+
+def prettify(elem):
+    """Return a pretty-printed XML string for the Element.
+    """
+    rough_string = ET.tostring(
+        elem, encoding="utf-8", method="xml", xml_declaration=True
+    )
+    reparsed = minidom.parseString(rough_string)
+    return reparsed.toprettyxml(indent="\t")
+
+
+def main():
+    df = pd.read_excel("成果表-0120.xlsx")
+    needed_df = df.iloc[:120, :3]
+    # print(needed_df)
+    trans = transformer.Projector(
+        transformer.EPSG_CGCS_2000_108E, transformer.EPSG_WGS_84
+    )
+    y_array = needed_df["北坐标(m)"].to_numpy()
+    x_array = needed_df["东坐标(m)"].to_numpy()
+    yx_array = np.array([y_array, x_array]).transpose()
+    wgs_84_point = np.array([trans.transform(y, x) for y, x in yx_array])
+    name_lat_lon_df = pd.DataFrame(
+        {"桩号": needed_df["点号"], "纬度": wgs_84_point[:, 0], "经度": wgs_84_point[:, 1]}
+    )
+    xml_f = ET.parse("sgt.kml")
+    ET.register_namespace("", "http://www.opengis.net/kml/2.2")
+    root = xml_f.getroot()
+    ns = {
+        "NS": r"http://www.opengis.net/kml/2.2",
+    }
+    folders_has_placemark = root.findall(r"NS:Document//NS:Folder[NS:Placemark]", ns)
+    point_folder = None
+    for fld in folders_has_placemark:
+        if fld.find(r"NS:name", ns).text == "点":
+            point_folder = fld
+            break
+    # remove all placemark
+    # for child in point_folder:
+    #     if child.tag == "{" + ns["NS"] + "}Placemark":
+    #         point_folder.remove(child)
+    point_folder.clear()
+    for _, row in name_lat_lon_df.iterrows():
+        name = row["桩号"]
+        lon = row["经度"]
+        lat = row["纬度"]
+        ele_placemark = ET.SubElement(point_folder, "Placemark")
+        ele_name = ET.SubElement(ele_placemark, "name")
+        ele_name.text = name
+        ele_point = ET.SubElement(ele_placemark, "Point")
+        coordinates = ET.SubElement(ele_point, "coordinates")
+        coordinates.text = "{lon},{lat},0".format(lon=lon, lat=lat)
+    # xml_f.write("out.kml",encoding='utf-8',method='xml',pretty_print=True)
+    # print(xml_f.toString())
+    with open("out.kml", "w") as f:
+        f.write(prettify(root))
+
+    # with open('84.txt','w') as f:
+    #     for point in wgs_84_point:
+    #         f.write('{point[1]},{point[0]},0 \n'.format(point=point))