小编Bog*_*gus的帖子

我需要在GMSMapView上显示一个圆圈(与MKCircle一样).使用MKMapView和MKCircle时很容易,但不能将MKCircle与GMSMapView一起使用.有任何想法吗？

更新:
这是当前(18.03.2013)选项:
1.包含圆形图像的地面标记.
一个由几个部分组成的圆(折线).

编辑:
3.Google添加了一个GMSCircle(23.04.2013)

 GMSGroundOverlayOptions *overlayOptions = [GMSGroundOverlayOptions options];
    overlayOptions.icon = [UIImage imageNamed:@"circle"];
    overlayOptions.position = touchMapCoordinate;
    overlayOptions.bearing = 0;
    overlayOptions.zoomLevel = 14.3;
 [mapView addGroundOverlayWithOptions:overlayOptions];

对于40x40像素的圆形图像,它看起来不错.(半径约为100米)

小分段路径解决方案:

    GMSPolylineOptions *circle = [GMSPolylineOptions options];
    CGPoint touchPoint = [mapView.projection pointForCoordinate:touchMapCoordinate];
    GMSMutablePath *path = [GMSMutablePath path];

    CGPoint circlePoint;

    for (int i = 0; i < 360; i++)
    { 
        circlePoint.x = touchPoint.x + radius * cos(i*M_PI/180);
        circlePoint.y = touchPoint.y + radius * sin(i*M_PI/180);

        CLLocationCoordinate2D aux = [mapView.projection coordinateForPoint:circlePoint];
        [path addCoordinate:aux];
    }

    circle.path = …