How to convert latitude and longitude (Spatial Reference wkid: 4326) to ArcGis Coordinates (Spatial Reference wkid: 23033)?

Question

I have already tried with the GeometryService project method passing parameters like outSR as wkid : 23033 (the one we are using for our map) and geometries that contains geometris with spatialReference wkid : 4326.

The end result is that the points are being shown with quite an offset from the original position compared to Google Earth or Google Maps.

NeilAyres · Accepted Answer

WKID 4326 is GCS_WGS84 - geographic cords based on the WGS84 datum.

WKID 23033 is ED_1950_UTM_33N. A projected UTM coordinate system based on the European datum.

You will need a transformation from one datum to the other to get them to match up.

There are a whole bunch of these available depending on your area of use.

See pages 12-13 of the pdf geographic_transformations in the documentation area of the install.