如何在MapKit For iPad中获取地图的左上角和右下经纬度？

发布于 2024-09-04 02:46:12 字数 600 浏览 6 评论 0原文

我正在寻找有关从 uimapkit 获取纬度和经度的答案。已经回答了同样的问题，但没有给出正确的坐标。 http://yit.me/3ddp73

这是我上面链接的线程中的代码。

CLLocationCoordinate2D topLeft, bottomRight;
topLeft = [mapView convertPoint:CGPointMake(0,0) toCoordinateFromView:mapView];
CGPoint pointBottomRight = CGPointMake(mapView.frame.size.width, mapView.frame.size.height);
bottomRight = [mapView convertPoint:pointBottomRight toCoordinateFromView:mapView];


NSLog(@"topleft = %f", topLeft);
NSLog(@"bottom right = %f", bottomRight);

有办法解决这个问题吗？

谢谢

原文

i'm looking for answer about getting latitude and longitude from uimapkit. there is same problem that has been answered, but it didn't give right coordinate. http://yit.me/3ddp73

it's code from thread i'm linking above.

CLLocationCoordinate2D topLeft, bottomRight;
topLeft = [mapView convertPoint:CGPointMake(0,0) toCoordinateFromView:mapView];
CGPoint pointBottomRight = CGPointMake(mapView.frame.size.width, mapView.frame.size.height);
bottomRight = [mapView convertPoint:pointBottomRight toCoordinateFromView:mapView];


NSLog(@"topleft = %f", topLeft);
NSLog(@"bottom right = %f", bottomRight);

any idea to fix this issue ?

thanks

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早乙女 2024-09-11 02:46:12

地图视图有一个 region 属性。

MKCoordinateRegion region = mapView.region;

该区域包含中心和二维跨度，等等

CLLocationCoordinate2D topLeft = CLLocationCoordinate2DMake(
  region.center.latitude - region.span.latitudeDelta/2,
  region.center.longitude - region.span.longitudeDelta/2,
);

。

The map view has a region property.

MKCoordinateRegion region = mapView.region;

the region contains the center and the 2D span, so

CLLocationCoordinate2D topLeft = CLLocationCoordinate2DMake(
  region.center.latitude - region.span.latitudeDelta/2,
  region.center.longitude - region.span.longitudeDelta/2,
);

etc.

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