Google Maps API v3 - 圈子部门 [英] Google Maps API v3 - circle sector

问题描述

我想在由点，半径，startAngle和stopAngle定义的地图上绘制圆的扇形。我发现了很多exmaples，但是多边形等等对我来说太复杂了。

I would like to draw sector of circle on map defined by point, radius, startAngle and stopAngle. I found lots of exmaples but with polygons etc whitch was too complicated for my case.

感谢您的帮助！

Thanks for any help!

推荐答案

Circle是没有定义边的对象。只有一个半径和一个中心点。
您需要使用多边形构建一个半圆，因为它是一个双亲对象

a Circle is an object with no defined sides. Only a radius and a center point. You are required to use a polygon to build a semi circle as it is a two sied object

并不总是一个简单的出路编码，并且典型地他们是做事的坏方法（除非你谈论诸如JQ / Bootstrap之类的东西）

There is not always an easy way out in coding, and typicaly they are the bad ways to do things (unless your talking about somthing like JQ/Bootstrap)

这是一个相当直观的forware实现

Here is a fairly stright forware implementation

http： //googlemaps.googlermania.com/google_maps_api_v3/en/draw-semi-circle.html

在此问题中提及
Google Maps Polygon错误呈现

他们甚至提供了一个工作的例子来撕开
http://maps.forum .nu​​ / temp / gm_bearing.html

they even provide a working example for you to rip apart http://maps.forum.nu/temp/gm_bearing.html

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