如何在bing map wpf c＃上绘制贝塞尔曲线折线？

Question

Bing maps library for wpf seems not to include any helper to draw a bezier curve. It has MapPolyLine which can be used to draw straight lines between n points. Any solution?

Thanks

Answer 1

Bing Maps does not support curved geometries directly, so instead can approximate the shape of a curved line by creating a polyline containing several small segments.

Hope this article will help https://alastaira.wordpress.com/2011/06/27/geodesics-on-bing-maps-v7/

Answer 2

Alternatively to using geodesic, if you don't care about being spatially accurate you can take your coordinates, convert them to pixel coordinates at zoom level 19 using the code here: https://msdn.microsoft.com/en-us/library/bb259689.aspx

Then pass the pixel coordinates through a standard Bezier curve algorithm. Take the resulting values and convert them back to locations.