InMemoryFeatureLayer pointLayer = wrapper.GetFeatureLayer();
string pointID = pointRow.ID;
ThinkGeo.MapSuite.Core.PointShape pointShape = new ThinkGeo.MapSuite.Core.PointShape(pointRow.Longitude, pointRow.Latitude);

double multiplier = wrapper.GetPointSizeMultiplierForMagnitude(pointRow.Magnitude);
pointShape.ScaleTo(multiplier);


Feature pointFeature = new Feature(pointShape, columnDictionary);
pointLayer.InternalFeatures.Add(pointID, pointFeature);