luxiaoxun / mapdownloader Goto Github PK
View Code? Open in Web Editor NEWMap downloader based on GMap.NET
Map downloader based on GMap.NET
我想在数据库的地图控件上显示多个标记。 您能否通过选择组合框显示我如何从数据库中执行此操作。
RTRT
船讯网的电子海图多下载几张就报304错误,有办法解决吗?
如何解决画图工具矩形绘制出错问题
使用https://api.map.baidu.com/lbsapi/getpoint/index.html拾取百度的坐标,然后用你的下载工具调用位置定位发现位置发生了很大的差距。
比如深圳莲花山的小平同志雕像百度拾取的坐标为:114.066025, 22.558907
然后用你的MapDownloader项目加初始化代码:
mapControl.MapProvider = GMapProvidersExt.Baidu.BaiduMapProvider.Instance;
再增加按钮调用定位代码:
mapControl.Position = new PointLatLng(22.558907, 114.066025);
但是这时候偏到很下面的皇岗村去了。
另一种情况就是,鼠标在地图上移动,地下显示的坐标跟百度的也是完全对不上的。
麻烦您看一下能否解决此问题。
标准坐标转百度坐标测试地址:http://lbsyun.baidu.com/jsdemo.htm#a5_1
PS:官方GMap.NET最新版本是1.7.5
您好,按照您在https://www.cnblogs.com/luxiaoxun/p/3463250.html中写的:WinForm项目中,添加引用后,新建MapControl.cs继承GMapControl,编译后,在Form设计窗口下,在工具箱中里死活找不到MapControl控件,请问该怎么办?
MapRegion "福建" is not right.
Could you fix it ?
Thanks !!
请问在使用百度地图的情况下,设置位置坐标,需要手动转换坐标系为百度吗?
我现在测试,输入百度坐标系的经纬度,发现偏移严重。偏移了几公里
而把输入的百度坐标转为GCJ02坐标时,再切换为高德地图,这时候的位置是显示正确的。
大佬您好,天地图为什么加载不出来?是需要更换自己的key吗?
应该说无偏移地图应用更多点,特别是手机类应用
请问下作者,加载百度地图后,wgs84坐标按百度偏移后加载到地图上依然位置不对,这是一个已知问题吗
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.