Infinity Code Forum — Center map at specific screen point

Re: Center map at specific screen point

2019-03-25T17:20:17Z

Okay, that answer wasn't really helpful, but I figured out how to do it. I had to calculate the offset between the marker and the screen point, then position the map accordingly.

In case someone else needs this:

public void CenterMapAtScreenPoint(Vector2 markerCoordinates, Vector3 _positionOfScreenPoint, float? _zoom = null)
    {
        // center the marker
        OnlineMaps.instance.SetPositionAndZoom(markerCoordinates.x, markerCoordinates.y, _zoom);

        // get coordinates of the ScreenPoint
        Vector2 screenPointCoordinates = OnlineMapsControlBase.instance.GetCoords(_positionOfScreenPoint);

        // calculate offset between marker and ScreenPoint
        float targetCoordsX = (float)(markerCoordinates.x  - (markerCoordinates.x  - screenPointCoordinates.x));
        float targetCoordsY = (float)(markerCoordinates.y + (markerCoordinates.y - screenPointCoordinates.y));

        // move map
        OnlineMaps.instance.SetPositionAndZoom(targetCoordsX, targetCoordsY, _zoom);
    }

Re: Center map at specific screen point

2019-03-25T15:18:35Z

OnlineMaps.SetPosition or OnlineMaps.SetPositionAndZoom.
http://infinity-code.com/doxygen/online … e65d01d9b7

Re: Center map at specific screen point

2019-03-25T14:09:31Z

Alex Vertax wrote:

... and set these coordinates to a map.

That's the point I don't know how to achieve.

Re: Center map at specific screen point

2019-03-25T13:54:22Z

Hello.

Convert the screen position into geographic coordinates using OnlineMapsControlBase.GetCoords, and set these coordinates to a map.
http://infinity-code.com/doxygen/online … d0a0d3ee6f

Center map at specific screen point

2019-03-25T12:26:49Z

Hello there!

SetPositionAndZoom() centers a location. Is it possible to center it at a custom screen point?
Something like
SetPositionAndZoomToScreenPoint( double lng, double lat, float? zoom, Vector2 screenPoint ){...}

Problem in our application is, that the target point is not the center of the map (see image).
Any way to achieve this?

Best,
Martin