How to convert esri Units ?

Question

Hi,

We have line drawing Map tool using offset method (ex: wgs 1984 World Mercator spatialReference). But when we draw line in GeographicCoordinateSystem offset draws very huge (ex: TUREF spatialReference). How can we convert esri units for (when is Map in GeographicCoordinateSystem) draw small line ?

Here is ArcObjects code below:

IUnitConverter unitConverter = new UnitConverterClass();

private double offsetDistance ;

if (map.SpatialReference is IGeographicCoordinateSystem)
 {
offsetDistance = unitConverter.ConvertUnits(WriteScalableDistanceTool.OffsetDistance, map.DistanceUnits, map.MapUnits);

}
 else
 {
offsetDistance = WriteScalableDistanceTool.OffsetDistance;
 }

Thanks.

DanPatterson_Retired · Answer

You need to 'project' your data http://pro.arcgis.com/en/pro-app/tool-reference/data-management/project.htm

every esri application has access to tools to project data... the above is the help topic for ArcGIS Pro

tanerkoka · Answer

Thank you for your reply, but I can not understand the sentence you wrote last.Can we solve this problem or can not solve it.

Thanks

DanPatterson_Retired · Answer

There is no such thing as how much is 1 meter in decimal degrees.  That  depends where on the surface of earth you are.  If can be determined via a 'projection' of the decimal degree data to a planar coordinate system... for instance a UTM projection for your area