使用Proj4js将坐标从EPSG:3857转换为EPSG:32633

Question

我正在尝试使用Proj4js将坐标从EPSG:3857转换到EPSG:32633。我添加了这个脚本，代码如下：

        <script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.4.3/proj4.js"></script>

        Proj4js.defs["EPSG:3857"] = "+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext  +no_defs";
        Proj4js.defs["EPSG:32633"] = "+proj=utm +zone=33 +ellps=WGS84 +datum=WGS84 +units=m +no_defs";
        var source = new Proj4js.Proj('EPSG:3857');    
        var dest = new Proj4js.Proj('EPSG:32633');

        var coorXNew = new Proj4js.Point( minX, maxX );   
        var coorYNew = new Proj4js.Point( minY, maxY ); 

        var transXCoords = Proj4js.transform(source, dest, coorXNew);      
        var transYCoords = Proj4js.transform(source, dest, coorYNew); 

我一直收到这样的错误:未定义ReferenceError: Proj4js。

我做错了什么？感谢您的回答！

Answer 1

快速浏览一下docs和proj4.js文件就会发现Proj4js对象并不存在。我是proj4。下次在提问之前一定要先看一下文档！