I want to overlay great circle arcs between airports on a map using longitudes and latitudes. I can already get the distance and bearing from the initial and final coordinates but now I need to produce the points on the curve to plot through.
我所希望的公式涉及的是原地、目的地和距离,回到位于原地和目的地之间道路上的纬度/长度。
目前,我用rad子对地球进行近距离,最后,我添加了西半球的更正。
currlat = oldlat + d * sin (angle)/ (radius);
currlon = oldlon + d * cos (angle)/ (radius * cos(oldlat));
在距离过远的地方,角在rad。 无论是在赤道还是通过极地,都假设地球环绕。 你可以在rad子里皈依......
此外,它假定(方向)指赤道线。
显然,这种需要冲破。
如果你们南面的恶性价值会变成消极的,而北面则会是积极的。 如果你走到西方,就会变成消极的,然后到东部,就会变得积极。
d * sin(ang)和 d( co)使你改变。 并且你只是根据这一基础计算出新的排位,以防地球环绕。
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