Python 如何在pyqt5中创建小部件以显示google地图
如何从用户处获取纬度和经度，并在pyqt5小部件的地图上显示此位置 我的操作系统是Windows，我发现了以下链接： 但在运行时，出现以下错误：Python 如何在pyqt5中创建小部件以显示google地图,python,python-3.x,google-maps,pyqt,pyqt5,Python,Python 3.x,Google Maps,Pyqt,Pyqt5,如何从用户处获取纬度和经度，并在pyqt5小部件的地图上显示此位置 我的操作系统是Windows，我发现了以下链接： 但在运行时，出现以下错误： ModuleNotFoundError: No module named 'PyQt5.QtWebKit' 总之，如何在pyqt5中创建小部件来显示google地图？QtWebkit从Qt 5.6中被弃用，并被Qt WebEngine取代，PyQt也是如此，它会产生错误。另一方面，我的库使用QtWebKit实现它，我还没有时间为PyQt实现它，但今天
ModuleNotFoundError: No module named 'PyQt5.QtWebKit'
总之，如何在pyqt5中创建小部件来显示google地图？QtWebkit从Qt 5.6中被弃用，并被Qt WebEngine取代，PyQt也是如此，它会产生错误。另一方面，我的库使用QtWebKit实现它，我还没有时间为PyQt实现它，但今天我已经完成了，它还没有经过完全测试 据观察，谷歌地图目前需要一个API密钥，您可以通过以下方式获得该密钥。此外，该类还提供了获取给定地名的位置的功能，但您还必须使用此功能启用它 为了让你做一个快速测试，我将提供一个API密钥，但我会在任何时候禁用它 main.py
很快用测试版本更新我的存储库：-QtWebkit从Qt 5.6中被弃用，并被Qt WebEngine取代，PyQt也是如此，它会产生错误。另一方面，我的库使用QtWebKit实现它，我还没有时间为PyQt实现它，但今天我已经完成了，它还没有经过完全测试 据观察，谷歌地图目前需要一个API密钥，您可以通过以下方式获得该密钥。此外，该类还提供了获取给定地名的位置的功能，但您还必须使用此功能启用它 为了让你做一个快速测试，我将提供一个API密钥，但我会在任何时候禁用它 main.py
不久将使用测试版本更新我的存储库：-此处有一些信息可能与您的问题相关：此处有一些信息可能与您的问题相关：
import json
from PyQt5 import QtCore, QtWidgets, QtWebEngineWidgets, QtWebChannel, QtNetwork
HTML = '''
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no"/>
<style type="text/css">
html {
height: 100%;
}
body {
height: 100%;
margin: 0;
padding: 0
}
#map_canvas {
height: 100%
}
</style>
<script type="text/javascript" src="qrc:///qtwebchannel/qwebchannel.js"></script>
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=API_KEY"
type="text/javascript"></script>
<script type="text/javascript" src="qgmap.js"></script>
</head>
<body onload="initialize()">
<div id="map_canvas" style="width:100%; height:100%"></div>
</body>
</html>
'''
JS = '''
// main var
var map;
var markers = [];
var qtWidget;
// main init function
function initialize() {
var myOptions = {
center: {lat: -34.397, lng: 150.644},
zoom: 8
};
map = new google.maps.Map(document.getElementById('map_canvas'),
myOptions);
new QWebChannel(qt.webChannelTransport, function (channel) {
qtWidget = channel.objects.qGoogleMap;
});
google.maps.event.addListener(map, 'dragend', function () {
var center = map.getCenter();
qtWidget.mapIsMoved(center.lat(), center.lng());
});
google.maps.event.addListener(map, 'click', function (ev) {
qtWidget.mapIsClicked(ev.latLng.lat(), ev.latLng.lng());
});
google.maps.event.addListener(map, 'rightclick', function (ev) {
qtWidget.mapIsRightClicked(ev.latLng.lat(), ev.latLng.lng());
});
google.maps.event.addListener(map, 'dblclick', function (ev) {
qtWidget.mapIsDoubleClicked(ev.latLng.lat(), ev.latLng.lng());
});
}
// custom functions
function gmap_setCenter(lat, lng) {
map.setCenter(new google.maps.LatLng(lat, lng));
}
function gmap_getCenter() {
return [map.getCenter().lat(), map.getCenter().lng()];
}
function gmap_setZoom(zoom) {
map.setZoom(zoom);
}
function gmap_addMarker(key, latitude, longitude, parameters) {
if (key in markers) {
gmap_deleteMarker(key);
}
var coords = new google.maps.LatLng(latitude, longitude);
parameters['map'] = map
parameters['position'] = coords;
var marker = new google.maps.Marker(parameters);
google.maps.event.addListener(marker, 'dragend', function () {
qtWidget.markerIsMoved(key, marker.position.lat(), marker.position.lng())
});
google.maps.event.addListener(marker, 'click', function () {
qtWidget.markerIsClicked(key, marker.position.lat(), marker.position.lng())
});
google.maps.event.addListener(marker, 'dblclick', function () {
qtWidget.markerIsDoubleClicked(key, marker.position.lat(), marker.position.lng())
});
google.maps.event.addListener(marker, 'rightclick', function () {
qtWidget.markerIsRightClicked(key, marker.position.lat(), marker.position.lng())
});
markers[key] = marker;
return key;
}
function gmap_moveMarker(key, latitude, longitude) {
var coords = new google.maps.LatLng(latitude, longitude);
markers[key].setPosition(coords);
}
function gmap_deleteMarker(key) {
markers[key].setMap(null);
delete markers[key]
}
function gmap_changeMarker(key, extras) {
if (!(key in markers)) {
return
}
markers[key].setOptions(extras);
}
'''
class GeoCoder(QtNetwork.QNetworkAccessManager):
class NotFoundError(Exception):
pass
def geocode(self, location, api_key):
url = QtCore.QUrl("https://maps.googleapis.com/maps/api/geocode/xml")
query = QtCore.QUrlQuery()
query.addQueryItem("key", api_key)
query.addQueryItem("address", location)
url.setQuery(query)
request = QtNetwork.QNetworkRequest(url)
reply = self.get(request)
loop = QtCore.QEventLoop()
reply.finished.connect(loop.quit)
loop.exec_()
reply.deleteLater()
self.deleteLater()
return self._parseResult(reply)
def _parseResult(self, reply):
xml = reply.readAll()
reader = QtCore.QXmlStreamReader(xml)
while not reader.atEnd():
reader.readNext()
if reader.name() != "geometry": continue
reader.readNextStartElement()
if reader.name() != "location": continue
reader.readNextStartElement()
if reader.name() != "lat": continue
latitude = float(reader.readElementText())
reader.readNextStartElement()
if reader.name() != "lng": continue
longitude = float(reader.readElementText())
return latitude, longitude
raise GeoCoder.NotFoundError
class QGoogleMap(QtWebEngineWidgets.QWebEngineView):
mapMoved = QtCore.pyqtSignal(float, float)
mapClicked = QtCore.pyqtSignal(float, float)
mapRightClicked = QtCore.pyqtSignal(float, float)
mapDoubleClicked = QtCore.pyqtSignal(float, float)
markerMoved = QtCore.pyqtSignal(str, float, float)
markerClicked = QtCore.pyqtSignal(str, float, float)
markerDoubleClicked = QtCore.pyqtSignal(str, float, float)
markerRightClicked = QtCore.pyqtSignal(str, float, float)
def __init__(self, api_key, parent=None):
super(QGoogleMap, self).__init__(parent)
self._api_key = api_key
channel = QtWebChannel.QWebChannel(self)
self.page().setWebChannel(channel)
channel.registerObject("qGoogleMap", self)
self.page().runJavaScript(JS)
html = HTML.replace("API_KEY", "YOUR_API_KEY_HERE")
self.setHtml(html)
self.loadFinished.connect(self.on_loadFinished)
self.initialized = False
self._manager = QtNetwork.QNetworkAccessManager(self)
@QtCore.pyqtSlot()
def on_loadFinished(self):
self.initialized = True
def waitUntilReady(self):
if not self.initialized:
loop = QtCore.QEventLoop()
self.loadFinished.connect(loop.quit)
loop.exec_()
def geocode(self, location):
return GeoCoder(self).geocode(location, self._api_key)
def centerAtAddress(self, location):
try:
latitude, longitude = self.geocode(location)
except GeoCoder.NotFoundError:
print("Not found {}".format(location))
return None, None
self.centerAt(latitude, longitude)
return latitude, longitude
def addMarkerAtAddress(self, location, **extra):
if 'title' not in extra:
extra['title'] = location
try:
latitude, longitude = self.geocode(location)
except GeoCoder.NotFoundError:
return None
return self.addMarker(location, latitude, longitude, **extra)
@QtCore.pyqtSlot(float, float)
def mapIsMoved(self, lat, lng):
self.mapMoved.emit(lat, lng)
@QtCore.pyqtSlot(float, float)
def mapIsClicked(self, lat, lng):
self.mapClicked.emit(lat, lng)
@QtCore.pyqtSlot(float, float)
def mapIsRightClicked(self, lat, lng):
self.mapRightClicked.emit(lat, lng)
@QtCore.pyqtSlot(float, float)
def mapIsDoubleClicked(self, lat, lng):
self.mapDoubleClicked.emit(lat, lng)
# markers
@QtCore.pyqtSlot(str, float, float)
def markerIsMoved(self, key, lat, lng):
self.markerMoved.emit(key, lat, lng)
@QtCore.pyqtSlot(str, float, float)
def markerIsClicked(self, key, lat, lng):
self.markerClicked.emit(key, lat, lng)
@QtCore.pyqtSlot(str, float, float)
def markerIsRightClicked(self, key, lat, lng):
self.markerRightClicked.emit(key, lat, lng)
@QtCore.pyqtSlot(str, float, float)
def markerIsDoubleClicked(self, key, lat, lng):
self.markerDoubleClicked.emit(key, lat, lng)
def runScript(self, script, callback=None):
if callback is None:
self.page().runJavaScript(script)
else:
self.page().runJavaScript(script, callback)
def centerAt(self, latitude, longitude):
self.runScript("gmap_setCenter({},{})".format(latitude, longitude))
def center(self):
self._center = {}
loop = QtCore.QEventLoop()
def callback(*args):
self._center = tuple(args[0])
loop.quit()
self.runScript("gmap_getCenter()", callback)
loop.exec_()
return self._center
def setZoom(self, zoom):
self.runScript("gmap_setZoom({})".format(zoom))
def addMarker(self, key, latitude, longitude, **extra):
return self.runScript(
"gmap_addMarker("
"key={!r}, "
"latitude={}, "
"longitude={}, "
"{}"
"); ".format(key, latitude, longitude, json.dumps(extra)))
def moveMarker(self, key, latitude, longitude):
return self.runScript(
"gmap_moveMarker({!r}, {}, {});".format(key, latitude, longitude))
def setMarkerOptions(self, keys, **extra):
return self.runScript(
"gmap_changeMarker("
"key={!r}, "
"{}"
"); "
.format(keys, json.dumps(extra)))
def deleteMarker(self, key):
return self.runScript(
"gmap_deleteMarker("
"key={!r} "
"); ".format(key))
if __name__ == '__main__':
import sys
API_KEY = "YOUR_API_KEY_HERE"
app = QtWidgets.QApplication(sys.argv)
w = QGoogleMap(api_key=API_KEY)
w.resize(640, 480)
w.show()
w.waitUntilReady()
w.setZoom(14)
lat, lng = w.centerAtAddress("Lima Peru")
if lat is None and lng is None:
lat, lng = -12.0463731, -77.042754
w.centerAt(lat, lng)
w.addMarker("MyDragableMark", lat, lng, **dict(
icon="http://maps.gstatic.com/mapfiles/ridefinder-images/mm_20_red.png",
draggable=True,
title="Move me!"
))
for place in ["Plaza Ramon Castilla", "Plaza San Martin", ]:
w.addMarkerAtAddress(place, icon="http://maps.gstatic.com/mapfiles/ridefinder-images/mm_20_gray.png")
w.mapMoved.connect(print)
w.mapClicked.connect(print)
w.mapRightClicked.connect(print)
w.mapDoubleClicked.connect(print)
sys.exit(app.exec_())