topic Re: Change map coordinate to screen point(x-y) in .NET Maps SDK Questions

Change map coordinate to screen point(x-y)

MohamadFathin — Tue, 05 Mar 2019 07:51:47 GMT

I try search many tutorial on how can convert the map coordinate(Lat/Long) to screen coordinate but it seem i can't find any of it. I want to perform a traverse method for the map to plot a marker. Any suggestion and idea are much appreciate.

Re: Change map coordinate to screen point(x-y)

Nicholas-Furness — Tue, 05 Mar 2019 13:34:14 GMT

Hi Mohamad Fathin,

Does this help? MapView.LocationToScreen Method

Pass in any MapPoint and you get a screen position relative ‌to the top-left corner of the MapView control.

Nick.

Re: Change map coordinate to screen point(x-y)

MohamadFathin — Wed, 06 Mar 2019 03:25:36 GMT

Hi Nicholas Furness‌

I try the reference you share.

double longitude = 100.458802; //reference starting point
double latitude = 5.997545;
public Point LocationToScreen(MapPoint location)
{
location = new MapPoint(longitude,latitude, SpatialReferences.Wgs84);
return location;
}

But it get me this error :

Cannot implicitly convert type 'Esri.ArcGISRuntime.Geometry.MapPoint' to 'System.Windows.Point'

Fathin

Re: Change map coordinate to screen point(x-y)

Nicholas-Furness — Sun, 12 Dec 2021 00:58:03 GMT

I meant that you should call mapView.LocationToScreen, not write your own function.

Something like…

double longitude = 100.458802; //reference starting point
double latitude = 5.997545;
location = new MapPoint(longitude,latitude, SpatialReferences.Wgs84);
screenPoint = mapView.LocationToScreen(location);
‍‍‍‍

Perhaps I misunderstood your question.

Re: Change map coordinate to screen point(x-y)

MohamadFathin — Mon, 11 Mar 2019 03:22:02 GMT

Hi Nicholas Furness‌

It work. Thank for your help.