Question

由于我对坡度的计算不了解，有人可以帮助我编写可计算坡度和高宽比值的代码吗？

我在文件中有纬度，经度和海拔值。有什么方法可以获取这些值？

我进行了很多搜索，发现R中有一个称为“地形”的函数，它给出了坡度和纵横比。但是我到处都有重要的价值观。

Answer 1

使用一些虚拟数据：

  var json = 
     {"current_page":1,
    "data":[{"id":1,"test_col":"Test one"},{"id":3,"test_col":"Test three"},{"id":4,"test_col":"Updated from post man"},{"id":5,"test_col":"Test five"},{"id":6,"test_col":"Test six"},{"id":7,"test_col":"Test seven"},{"id":8,"test_col":"Test eight"},{"id":9,"test_col":"Test nine"},{"id":10,"test_col":"Test ten"},{"id":11,"test_col":"test eleven"}],
    "first_page_url":"http:\/\/api.changemaker\/api\/test?page=1","from":1,"last_page":2,"last_page_url":"http:\/\/api.changemaker\/api\/test?page=2","next_page_url":"http:\/\/api.changemaker\/api\/test?page=2","path":"http:\/\/api.changemaker\/api\/test","per_page":10,"prev_page_url":null,"to":10,"total":15}
    console.log(json.data);

如何通过提供纬度，经度和高程数据作为输入来计算坡度和长宽比值？

1 个答案: