统一地图-坐标在可缩放地图的中心？

Question

我知道如何将可缩放的地图移动到特定的lat/long，这一点将在屏幕中居中。如果用户移动地图(将其横向拖动)，我如何在地图的中心位置获取坐标？

谢谢!

Answer 1

我建议使用来自Unity的Camera.ScreenToWorldPoint方法：

https://docs.unity3d.com/ScriptReference/Camera.ScreenToWorldPoint.html?_ga=2.95757022.39200391.1587116665-1246420375.1587116665

也请看一下类似的线程：https://forum.unity.com/threads/how-to-get-a-world-position-from-the-center-of-the-screen.524573/

Answer 2

谢谢!基于您指向我的类似线程，我向我的QuadTreeCameraMovement添加了一个函数.

public Vector2d GeoCoordsAtCenter() {
        var centerScreen = _referenceCamera.ViewportToScreenPoint(new Vector3(.5f, .5f, _referenceCamera.transform.localPosition.y));

        var pos = _referenceCamera.ScreenToWorldPoint(centerScreen);

        var latlongDelta = _mapManager.WorldToGeoPosition(pos);
        Debug.Log("CENTER: Latitude: " + latlongDelta.x + " Longitude: " + latlongDelta.y);
        return latlongDelta;
    }